3312 lines
90 KiB
C
3312 lines
90 KiB
C
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file blender/editors/sculpt_paint/paint_vertex.c
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* \ingroup edsculpt
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*/
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#include <math.h>
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#include <string.h>
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#ifdef WIN32
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#include <io.h>
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#else
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#include <unistd.h>
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#endif
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#include "MEM_guardedalloc.h"
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#include "BLI_blenlib.h"
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#include "BLI_math.h"
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#include "BLI_memarena.h"
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#include "BLI_utildefines.h"
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#include "BLI_ghash.h"
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#include "IMB_imbuf.h"
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#include "IMB_imbuf_types.h"
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#include "DNA_armature_types.h"
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#include "DNA_mesh_types.h"
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#include "DNA_particle_types.h"
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#include "DNA_scene_types.h"
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#include "DNA_brush_types.h"
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#include "DNA_object_types.h"
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#include "DNA_meshdata_types.h"
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#include "RNA_access.h"
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#include "RNA_define.h"
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#include "RNA_enum_types.h"
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#include "BKE_DerivedMesh.h"
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#include "BKE_armature.h"
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#include "BKE_action.h"
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#include "BKE_brush.h"
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#include "BKE_context.h"
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#include "BKE_depsgraph.h"
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#include "BKE_deform.h"
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#include "BKE_mesh.h"
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#include "BKE_modifier.h"
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#include "BKE_object.h"
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#include "BKE_object_deform.h"
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#include "BKE_paint.h"
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#include "BKE_report.h"
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#include "WM_api.h"
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#include "WM_types.h"
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#include "GPU_buffers.h"
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#include "ED_armature.h"
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#include "ED_mesh.h"
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#include "ED_screen.h"
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#include "ED_view3d.h"
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#include "paint_intern.h"
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/* check if we can do partial updates and have them draw realtime
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* (without rebuilding the 'derivedFinal') */
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static int vertex_paint_use_fast_update_check(Object *ob)
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{
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DerivedMesh *dm = ob->derivedFinal;
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if (dm) {
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Mesh *me = BKE_mesh_from_object(ob);
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if (me && me->mcol) {
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return (me->mcol == CustomData_get_layer(&dm->faceData, CD_MCOL));
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}
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}
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return FALSE;
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}
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/* if the polygons from the mesh and the 'derivedFinal' match
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* we can assume that no modifiers are applied and that its worth adding tessellated faces
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* so 'vertex_paint_use_fast_update_check()' returns TRUE */
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static int vertex_paint_use_tessface_check(Object *ob, Mesh *me)
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{
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DerivedMesh *dm = ob->derivedFinal;
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if (me && dm) {
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return (me->mpoly == CustomData_get_layer(&dm->polyData, CD_MPOLY));
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}
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return FALSE;
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}
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static void update_tessface_data(Object *ob, Mesh *me)
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{
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if (vertex_paint_use_tessface_check(ob, me)) {
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/* assume if these exist, that they are up to date & valid */
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if (!me->mcol || !me->mface) {
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/* should always be true */
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/* XXX Why this clearing? tessface_calc will reset it anyway! */
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#if 0
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if (me->mcol) {
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memset(me->mcol, 255, 4 * sizeof(MCol) * me->totface);
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}
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#endif
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/* create tessfaces because they will be used for drawing & fast updates */
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BKE_mesh_tessface_calc(me); /* does own call to update pointers */
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}
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}
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else {
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if (me->totface) {
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/* this wont be used, theres no need to keep it */
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BKE_mesh_tessface_clear(me);
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}
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}
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}
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/* polling - retrieve whether cursor should be set or operator should be done */
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/* Returns true if vertex paint mode is active */
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int vertex_paint_mode_poll(bContext *C)
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{
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Object *ob = CTX_data_active_object(C);
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return ob && ob->mode == OB_MODE_VERTEX_PAINT && ((Mesh *)ob->data)->totpoly;
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}
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int vertex_paint_poll(bContext *C)
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{
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if (vertex_paint_mode_poll(C) &&
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paint_brush(&CTX_data_tool_settings(C)->vpaint->paint))
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{
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ScrArea *sa = CTX_wm_area(C);
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if (sa && sa->spacetype == SPACE_VIEW3D) {
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ARegion *ar = CTX_wm_region(C);
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if (ar->regiontype == RGN_TYPE_WINDOW)
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return 1;
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}
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}
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return 0;
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}
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int weight_paint_mode_poll(bContext *C)
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{
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Object *ob = CTX_data_active_object(C);
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return ob && ob->mode == OB_MODE_WEIGHT_PAINT && ((Mesh *)ob->data)->totpoly;
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}
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int weight_paint_poll(bContext *C)
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{
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Object *ob = CTX_data_active_object(C);
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ScrArea *sa;
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if ((ob != NULL) &&
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(ob->mode & OB_MODE_WEIGHT_PAINT) &&
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(paint_brush(&CTX_data_tool_settings(C)->wpaint->paint) != NULL) &&
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(sa = CTX_wm_area(C)) &&
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(sa->spacetype == SPACE_VIEW3D))
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{
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ARegion *ar = CTX_wm_region(C);
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if (ar->regiontype == RGN_TYPE_WINDOW) {
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return 1;
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}
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}
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return 0;
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}
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static VPaint *new_vpaint(int wpaint)
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{
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VPaint *vp = MEM_callocN(sizeof(VPaint), "VPaint");
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vp->flag = VP_AREA + VP_SPRAY;
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if (wpaint)
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vp->flag = VP_AREA;
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return vp;
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}
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static int *get_indexarray(Mesh *me)
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{
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return MEM_mallocN(sizeof(int) * (me->totpoly + 1), "vertexpaint");
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}
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unsigned int vpaint_get_current_col(VPaint *vp)
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{
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Brush *brush = paint_brush(&vp->paint);
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unsigned char col[4];
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rgb_float_to_uchar(col, brush->rgb);
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col[3] = 255; /* alpha isn't used, could even be removed to speedup paint a little */
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return *(unsigned int *)col;
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}
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static void do_shared_vertex_tesscol(Mesh *me)
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{
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/* if no mcol: do not do */
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/* if tface: only the involved faces, otherwise all */
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const int use_face_sel = (me->editflag & ME_EDIT_PAINT_FACE_SEL);
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MFace *mface;
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int a;
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short *scolmain, *scol;
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char *mcol;
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if (me->mcol == NULL || me->totvert == 0 || me->totface == 0) return;
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scolmain = MEM_callocN(4 * sizeof(short) * me->totvert, "colmain");
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mface = me->mface;
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mcol = (char *)me->mcol;
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for (a = me->totface; a > 0; a--, mface++, mcol += 16) {
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if ((use_face_sel == FALSE) || (mface->flag & ME_FACE_SEL)) {
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scol = scolmain + 4 * mface->v1;
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scol[0]++; scol[1] += mcol[1]; scol[2] += mcol[2]; scol[3] += mcol[3];
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scol = scolmain + 4 * mface->v2;
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scol[0]++; scol[1] += mcol[5]; scol[2] += mcol[6]; scol[3] += mcol[7];
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scol = scolmain + 4 * mface->v3;
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scol[0]++; scol[1] += mcol[9]; scol[2] += mcol[10]; scol[3] += mcol[11];
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if (mface->v4) {
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scol = scolmain + 4 * mface->v4;
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scol[0]++; scol[1] += mcol[13]; scol[2] += mcol[14]; scol[3] += mcol[15];
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}
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}
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}
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a = me->totvert;
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scol = scolmain;
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while (a--) {
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if (scol[0] > 1) {
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scol[1] /= scol[0];
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scol[2] /= scol[0];
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scol[3] /= scol[0];
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}
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scol += 4;
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}
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mface = me->mface;
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mcol = (char *)me->mcol;
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for (a = me->totface; a > 0; a--, mface++, mcol += 16) {
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if ((use_face_sel == FALSE) || (mface->flag & ME_FACE_SEL)) {
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scol = scolmain + 4 * mface->v1;
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mcol[1] = scol[1]; mcol[2] = scol[2]; mcol[3] = scol[3];
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scol = scolmain + 4 * mface->v2;
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mcol[5] = scol[1]; mcol[6] = scol[2]; mcol[7] = scol[3];
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scol = scolmain + 4 * mface->v3;
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mcol[9] = scol[1]; mcol[10] = scol[2]; mcol[11] = scol[3];
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if (mface->v4) {
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scol = scolmain + 4 * mface->v4;
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mcol[13] = scol[1]; mcol[14] = scol[2]; mcol[15] = scol[3];
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}
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}
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}
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MEM_freeN(scolmain);
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}
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static void do_shared_vertexcol(Mesh *me, int do_tessface)
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{
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const int use_face_sel = (me->editflag & ME_EDIT_PAINT_FACE_SEL);
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MPoly *mp;
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float (*scol)[4];
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int i, j, has_shared = 0;
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/* if no mloopcol: do not do */
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/* if mtexpoly: only the involved faces, otherwise all */
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if (me->mloopcol == 0 || me->totvert == 0 || me->totpoly == 0) return;
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scol = MEM_callocN(sizeof(float) * me->totvert * 5, "scol");
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for (i = 0, mp = me->mpoly; i < me->totpoly; i++, mp++) {
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if ((use_face_sel == FALSE) || (mp->flag & ME_FACE_SEL)) {
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MLoop *ml = me->mloop + mp->loopstart;
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MLoopCol *lcol = me->mloopcol + mp->loopstart;
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for (j = 0; j < mp->totloop; j++, ml++, lcol++) {
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scol[ml->v][0] += lcol->r;
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scol[ml->v][1] += lcol->g;
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scol[ml->v][2] += lcol->b;
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scol[ml->v][3] += 1.0f;
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has_shared = 1;
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}
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}
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}
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if (has_shared) {
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for (i = 0; i < me->totvert; i++) {
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if (scol[i][3] != 0.0f) {
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mul_v3_fl(scol[i], 1.0f / scol[i][3]);
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}
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}
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for (i = 0, mp = me->mpoly; i < me->totpoly; i++, mp++) {
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if ((use_face_sel == FALSE) || (mp->flag & ME_FACE_SEL)) {
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MLoop *ml = me->mloop + mp->loopstart;
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MLoopCol *lcol = me->mloopcol + mp->loopstart;
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for (j = 0; j < mp->totloop; j++, ml++, lcol++) {
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lcol->r = scol[ml->v][0];
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lcol->g = scol[ml->v][1];
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lcol->b = scol[ml->v][2];
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}
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}
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}
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}
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MEM_freeN(scol);
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if (has_shared && do_tessface) {
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do_shared_vertex_tesscol(me);
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}
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}
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static void make_vertexcol(Object *ob) /* single ob */
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{
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Mesh *me;
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if (!ob || ob->id.lib) return;
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me = BKE_mesh_from_object(ob);
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if (me == NULL) return;
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if (me->edit_btmesh) return;
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/* copies from shadedisplist to mcol */
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if (!me->mloopcol && me->totloop) {
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if (!me->mcol) {
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CustomData_add_layer(&me->fdata, CD_MCOL, CD_DEFAULT, NULL, me->totface);
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}
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if (!me->mloopcol) {
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CustomData_add_layer(&me->ldata, CD_MLOOPCOL, CD_DEFAULT, NULL, me->totloop);
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}
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mesh_update_customdata_pointers(me, TRUE);
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}
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update_tessface_data(ob, me);
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//if (shade)
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// shadeMeshMCol(scene, ob, me);
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//else
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DAG_id_tag_update(&me->id, 0);
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}
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/* mirror_vgroup is set to -1 when invalid */
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static int wpaint_mirror_vgroup_ensure(Object *ob, const int vgroup_active)
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{
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bDeformGroup *defgroup = BLI_findlink(&ob->defbase, vgroup_active);
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if (defgroup) {
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int mirrdef;
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char name[MAXBONENAME];
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flip_side_name(name, defgroup->name, FALSE);
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mirrdef = defgroup_name_index(ob, name);
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if (mirrdef == -1) {
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int olddef = ob->actdef; /* tsk, ED_vgroup_add sets the active defgroup */
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if (ED_vgroup_add_name(ob, name)) {
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mirrdef = BLI_countlist(&ob->defbase) - 1;
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}
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ob->actdef = olddef;
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}
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/* curdef should never be NULL unless this is
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* a lamp and ED_vgroup_add_name fails */
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return mirrdef;
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}
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return -1;
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}
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static void free_vpaint_prev(VPaint *vp)
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{
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if (vp->vpaint_prev) {
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MEM_freeN(vp->vpaint_prev);
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vp->vpaint_prev = NULL;
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vp->tot = 0;
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}
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}
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static void free_wpaint_prev(VPaint *vp)
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{
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if (vp->wpaint_prev) {
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BKE_defvert_array_free(vp->wpaint_prev, vp->tot);
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vp->wpaint_prev = NULL;
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vp->tot = 0;
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}
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}
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static void copy_vpaint_prev(VPaint *vp, unsigned int *lcol, int tot)
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{
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free_vpaint_prev(vp);
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vp->tot = tot;
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if (lcol == NULL || tot == 0) return;
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vp->vpaint_prev = MEM_mallocN(sizeof(int) * tot, "vpaint_prev");
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memcpy(vp->vpaint_prev, lcol, sizeof(int) * tot);
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}
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static void copy_wpaint_prev(VPaint *wp, MDeformVert *dverts, int dcount)
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{
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free_wpaint_prev(wp);
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if (dverts && dcount) {
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wp->wpaint_prev = MEM_mallocN(sizeof(MDeformVert) * dcount, "wpaint prev");
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wp->tot = dcount;
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BKE_defvert_array_copy(wp->wpaint_prev, dverts, dcount);
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}
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}
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void vpaint_fill(Object *ob, unsigned int paintcol)
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{
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Mesh *me;
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MPoly *mp;
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MLoopCol *lcol;
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int i, j, selected;
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me = BKE_mesh_from_object(ob);
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if (me == NULL || me->totpoly == 0) return;
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if (!me->mloopcol) make_vertexcol(ob);
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if (!me->mloopcol) return; /* possible we can't make mcol's */
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selected = (me->editflag & ME_EDIT_PAINT_FACE_SEL);
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mp = me->mpoly;
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for (i = 0; i < me->totpoly; i++, mp++) {
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if (!(!selected || mp->flag & ME_FACE_SEL))
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continue;
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lcol = me->mloopcol + mp->loopstart;
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for (j = 0; j < mp->totloop; j++, lcol++) {
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*(int *)lcol = paintcol;
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}
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}
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/* remove stale me->mcol, will be added later */
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BKE_mesh_tessface_clear(me);
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DAG_id_tag_update(&me->id, 0);
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}
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/* fills in the selected faces with the current weight and vertex group */
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void wpaint_fill(VPaint *wp, Object *ob, float paintweight)
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{
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Mesh *me = ob->data;
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MPoly *mp;
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MDeformWeight *dw, *dw_prev;
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int vgroup_active, vgroup_mirror = -1;
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unsigned int index;
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/* mutually exclusive, could be made into a */
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const short paint_selmode = ME_EDIT_PAINT_SEL_MODE(me);
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if (me->totpoly == 0 || me->dvert == NULL || !me->mpoly) return;
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vgroup_active = ob->actdef - 1;
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/* if mirror painting, find the other group */
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if (me->editflag & ME_EDIT_MIRROR_X) {
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vgroup_mirror = wpaint_mirror_vgroup_ensure(ob, vgroup_active);
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}
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copy_wpaint_prev(wp, me->dvert, me->totvert);
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for (index = 0, mp = me->mpoly; index < me->totpoly; index++, mp++) {
|
|
unsigned int fidx = mp->totloop - 1;
|
|
|
|
if ((paint_selmode == SCE_SELECT_FACE) && !(mp->flag & ME_FACE_SEL)) {
|
|
continue;
|
|
}
|
|
|
|
do {
|
|
unsigned int vidx = me->mloop[mp->loopstart + fidx].v;
|
|
|
|
if (!me->dvert[vidx].flag) {
|
|
if ((paint_selmode == SCE_SELECT_VERTEX) && !(me->mvert[vidx].flag & SELECT)) {
|
|
continue;
|
|
}
|
|
|
|
dw = defvert_verify_index(&me->dvert[vidx], vgroup_active);
|
|
if (dw) {
|
|
dw_prev = defvert_verify_index(wp->wpaint_prev + vidx, vgroup_active);
|
|
dw_prev->weight = dw->weight; /* set the undo weight */
|
|
dw->weight = paintweight;
|
|
|
|
if (me->editflag & ME_EDIT_MIRROR_X) { /* x mirror painting */
|
|
int j = mesh_get_x_mirror_vert(ob, vidx);
|
|
if (j >= 0) {
|
|
/* copy, not paint again */
|
|
if (vgroup_mirror != -1) {
|
|
dw = defvert_verify_index(me->dvert + j, vgroup_mirror);
|
|
dw_prev = defvert_verify_index(wp->wpaint_prev + j, vgroup_mirror);
|
|
}
|
|
else {
|
|
dw = defvert_verify_index(me->dvert + j, vgroup_active);
|
|
dw_prev = defvert_verify_index(wp->wpaint_prev + j, vgroup_active);
|
|
}
|
|
dw_prev->weight = dw->weight; /* set the undo weight */
|
|
dw->weight = paintweight;
|
|
}
|
|
}
|
|
}
|
|
me->dvert[vidx].flag = 1;
|
|
}
|
|
|
|
} while (fidx--);
|
|
}
|
|
|
|
{
|
|
MDeformVert *dv = me->dvert;
|
|
for (index = me->totvert; index != 0; index--, dv++) {
|
|
dv->flag = 0;
|
|
}
|
|
}
|
|
|
|
copy_wpaint_prev(wp, NULL, 0);
|
|
|
|
DAG_id_tag_update(&me->id, 0);
|
|
}
|
|
|
|
/* XXX: should be re-implemented as a vertex/weight paint 'color correct' operator */
|
|
#if 0
|
|
void vpaint_dogamma(Scene *scene)
|
|
{
|
|
VPaint *vp = scene->toolsettings->vpaint;
|
|
Mesh *me;
|
|
Object *ob;
|
|
float igam, fac;
|
|
int a, temp;
|
|
unsigned char *cp, gamtab[256];
|
|
|
|
ob = OBACT;
|
|
me = BKE_mesh_from_object(ob);
|
|
|
|
if (!(ob->mode & OB_MODE_VERTEX_PAINT)) return;
|
|
if (me == 0 || me->mcol == 0 || me->totface == 0) return;
|
|
|
|
igam = 1.0 / vp->gamma;
|
|
for (a = 0; a < 256; a++) {
|
|
|
|
fac = ((float)a) / 255.0;
|
|
fac = vp->mul * pow(fac, igam);
|
|
|
|
temp = 255.9 * fac;
|
|
|
|
if (temp <= 0) gamtab[a] = 0;
|
|
else if (temp >= 255) gamtab[a] = 255;
|
|
else gamtab[a] = temp;
|
|
}
|
|
|
|
a = 4 * me->totface;
|
|
cp = (unsigned char *)me->mcol;
|
|
while (a--) {
|
|
|
|
cp[1] = gamtab[cp[1]];
|
|
cp[2] = gamtab[cp[2]];
|
|
cp[3] = gamtab[cp[3]];
|
|
|
|
cp += 4;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
BLI_INLINE unsigned int mcol_blend(unsigned int col1, unsigned int col2, int fac)
|
|
{
|
|
unsigned char *cp1, *cp2, *cp;
|
|
int mfac;
|
|
unsigned int col = 0;
|
|
|
|
if (fac == 0) {
|
|
return col1;
|
|
}
|
|
|
|
if (fac >= 255) {
|
|
return col2;
|
|
}
|
|
|
|
mfac = 255 - fac;
|
|
|
|
cp1 = (unsigned char *)&col1;
|
|
cp2 = (unsigned char *)&col2;
|
|
cp = (unsigned char *)&col;
|
|
|
|
cp[0] = (mfac * cp1[0] + fac * cp2[0]) / 255;
|
|
cp[1] = (mfac * cp1[1] + fac * cp2[1]) / 255;
|
|
cp[2] = (mfac * cp1[2] + fac * cp2[2]) / 255;
|
|
cp[3] = 255;
|
|
|
|
return col;
|
|
}
|
|
|
|
BLI_INLINE unsigned int mcol_add(unsigned int col1, unsigned int col2, int fac)
|
|
{
|
|
unsigned char *cp1, *cp2, *cp;
|
|
int temp;
|
|
unsigned int col = 0;
|
|
|
|
if (fac == 0) {
|
|
return col1;
|
|
}
|
|
|
|
cp1 = (unsigned char *)&col1;
|
|
cp2 = (unsigned char *)&col2;
|
|
cp = (unsigned char *)&col;
|
|
|
|
temp = cp1[0] + ((fac * cp2[0]) / 255);
|
|
cp[0] = (temp > 254) ? 255 : temp;
|
|
temp = cp1[1] + ((fac * cp2[1]) / 255);
|
|
cp[1] = (temp > 254) ? 255 : temp;
|
|
temp = cp1[2] + ((fac * cp2[2]) / 255);
|
|
cp[2] = (temp > 254) ? 255 : temp;
|
|
cp[3] = 255;
|
|
|
|
return col;
|
|
}
|
|
|
|
BLI_INLINE unsigned int mcol_sub(unsigned int col1, unsigned int col2, int fac)
|
|
{
|
|
unsigned char *cp1, *cp2, *cp;
|
|
int temp;
|
|
unsigned int col = 0;
|
|
|
|
if (fac == 0) {
|
|
return col1;
|
|
}
|
|
|
|
cp1 = (unsigned char *)&col1;
|
|
cp2 = (unsigned char *)&col2;
|
|
cp = (unsigned char *)&col;
|
|
|
|
temp = cp1[0] - ((fac * cp2[0]) / 255);
|
|
cp[0] = (temp < 0) ? 0 : temp;
|
|
temp = cp1[1] - ((fac * cp2[1]) / 255);
|
|
cp[1] = (temp < 0) ? 0 : temp;
|
|
temp = cp1[2] - ((fac * cp2[2]) / 255);
|
|
cp[2] = (temp < 0) ? 0 : temp;
|
|
cp[3] = 255;
|
|
|
|
return col;
|
|
}
|
|
|
|
BLI_INLINE unsigned int mcol_mul(unsigned int col1, unsigned int col2, int fac)
|
|
{
|
|
unsigned char *cp1, *cp2, *cp;
|
|
int mfac;
|
|
unsigned int col = 0;
|
|
|
|
if (fac == 0) {
|
|
return col1;
|
|
}
|
|
|
|
mfac = 255 - fac;
|
|
|
|
cp1 = (unsigned char *)&col1;
|
|
cp2 = (unsigned char *)&col2;
|
|
cp = (unsigned char *)&col;
|
|
|
|
/* first mul, then blend the fac */
|
|
cp[0] = (mfac * cp1[0] + fac * ((cp2[0] * cp1[0]) / 255)) / 255;
|
|
cp[1] = (mfac * cp1[1] + fac * ((cp2[1] * cp1[1]) / 255)) / 255;
|
|
cp[2] = (mfac * cp1[2] + fac * ((cp2[2] * cp1[2]) / 255)) / 255;
|
|
cp[3] = 255;
|
|
|
|
return col;
|
|
}
|
|
|
|
BLI_INLINE unsigned int mcol_lighten(unsigned int col1, unsigned int col2, int fac)
|
|
{
|
|
unsigned char *cp1, *cp2, *cp;
|
|
int mfac;
|
|
unsigned int col = 0;
|
|
|
|
if (fac == 0) {
|
|
return col1;
|
|
}
|
|
else if (fac >= 255) {
|
|
return col2;
|
|
}
|
|
|
|
mfac = 255 - fac;
|
|
|
|
cp1 = (unsigned char *)&col1;
|
|
cp2 = (unsigned char *)&col2;
|
|
cp = (unsigned char *)&col;
|
|
|
|
/* See if are lighter, if so mix, else don't do anything.
|
|
* if the paint col is darker then the original, then ignore */
|
|
if (rgb_to_grayscale_byte(cp1) > rgb_to_grayscale_byte(cp2)) {
|
|
return col1;
|
|
}
|
|
|
|
cp[0] = (mfac * cp1[0] + fac * cp2[0]) / 255;
|
|
cp[1] = (mfac * cp1[1] + fac * cp2[1]) / 255;
|
|
cp[2] = (mfac * cp1[2] + fac * cp2[2]) / 255;
|
|
cp[3] = 255;
|
|
|
|
return col;
|
|
}
|
|
|
|
BLI_INLINE unsigned int mcol_darken(unsigned int col1, unsigned int col2, int fac)
|
|
{
|
|
unsigned char *cp1, *cp2, *cp;
|
|
int mfac;
|
|
unsigned int col = 0;
|
|
|
|
if (fac == 0) {
|
|
return col1;
|
|
}
|
|
else if (fac >= 255) {
|
|
return col2;
|
|
}
|
|
|
|
mfac = 255 - fac;
|
|
|
|
cp1 = (unsigned char *)&col1;
|
|
cp2 = (unsigned char *)&col2;
|
|
cp = (unsigned char *)&col;
|
|
|
|
/* See if were darker, if so mix, else don't do anything.
|
|
* if the paint col is brighter then the original, then ignore */
|
|
if (rgb_to_grayscale_byte(cp1) < rgb_to_grayscale_byte(cp2)) {
|
|
return col1;
|
|
}
|
|
|
|
cp[0] = (mfac * cp1[0] + fac * cp2[0]) / 255;
|
|
cp[1] = (mfac * cp1[1] + fac * cp2[1]) / 255;
|
|
cp[2] = (mfac * cp1[2] + fac * cp2[2]) / 255;
|
|
cp[3] = 255;
|
|
return col;
|
|
}
|
|
|
|
/* wpaint has 'wpaint_blend_tool' */
|
|
static unsigned int vpaint_blend_tool(const int tool, const unsigned int col,
|
|
const unsigned int paintcol, const int alpha_i)
|
|
{
|
|
switch (tool) {
|
|
case PAINT_BLEND_MIX:
|
|
case PAINT_BLEND_BLUR: return mcol_blend(col, paintcol, alpha_i);
|
|
case PAINT_BLEND_ADD: return mcol_add(col, paintcol, alpha_i);
|
|
case PAINT_BLEND_SUB: return mcol_sub(col, paintcol, alpha_i);
|
|
case PAINT_BLEND_MUL: return mcol_mul(col, paintcol, alpha_i);
|
|
case PAINT_BLEND_LIGHTEN: return mcol_lighten(col, paintcol, alpha_i);
|
|
case PAINT_BLEND_DARKEN: return mcol_darken(col, paintcol, alpha_i);
|
|
default:
|
|
BLI_assert(0);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* wpaint has 'wpaint_blend' */
|
|
static unsigned int vpaint_blend(VPaint *vp, unsigned int col, unsigned int colorig, const
|
|
unsigned int paintcol, const int alpha_i,
|
|
/* pre scaled from [0-1] --> [0-255] */
|
|
const int brush_alpha_value_i)
|
|
{
|
|
Brush *brush = paint_brush(&vp->paint);
|
|
const int tool = brush->vertexpaint_tool;
|
|
|
|
col = vpaint_blend_tool(tool, col, paintcol, alpha_i);
|
|
|
|
/* if no spray, clip color adding with colorig & orig alpha */
|
|
if ((vp->flag & VP_SPRAY) == 0) {
|
|
unsigned int testcol, a;
|
|
char *cp, *ct, *co;
|
|
|
|
testcol = vpaint_blend_tool(tool, colorig, paintcol, brush_alpha_value_i);
|
|
|
|
cp = (char *)&col;
|
|
ct = (char *)&testcol;
|
|
co = (char *)&colorig;
|
|
|
|
for (a = 0; a < 4; a++) {
|
|
if (ct[a] < co[a]) {
|
|
if (cp[a] < ct[a]) cp[a] = ct[a];
|
|
else if (cp[a] > co[a]) cp[a] = co[a];
|
|
}
|
|
else {
|
|
if (cp[a] < co[a]) cp[a] = co[a];
|
|
else if (cp[a] > ct[a]) cp[a] = ct[a];
|
|
}
|
|
}
|
|
}
|
|
|
|
return col;
|
|
}
|
|
|
|
|
|
static int sample_backbuf_area(ViewContext *vc, int *indexar, int totface, int x, int y, float size)
|
|
{
|
|
struct ImBuf *ibuf;
|
|
int a, tot = 0, index;
|
|
|
|
/* brecht: disabled this because it obviously fails for
|
|
* brushes with size > 64, why is this here? */
|
|
/*if (size > 64.0) size = 64.0;*/
|
|
|
|
ibuf = view3d_read_backbuf(vc, x - size, y - size, x + size, y + size);
|
|
if (ibuf) {
|
|
unsigned int *rt = ibuf->rect;
|
|
|
|
memset(indexar, 0, sizeof(int) * (totface + 1));
|
|
|
|
size = ibuf->x * ibuf->y;
|
|
while (size--) {
|
|
|
|
if (*rt) {
|
|
index = WM_framebuffer_to_index(*rt);
|
|
if (index > 0 && index <= totface)
|
|
indexar[index] = 1;
|
|
}
|
|
|
|
rt++;
|
|
}
|
|
|
|
for (a = 1; a <= totface; a++) {
|
|
if (indexar[a]) indexar[tot++] = a;
|
|
}
|
|
|
|
IMB_freeImBuf(ibuf);
|
|
}
|
|
|
|
return tot;
|
|
}
|
|
|
|
/* whats _dl mean? */
|
|
static float calc_vp_strength_dl(VPaint *vp, ViewContext *vc, const float co[3],
|
|
const float mval[2], const float brush_size_pressure)
|
|
{
|
|
float vertco[2];
|
|
|
|
if (ED_view3d_project_float_object(vc->ar,
|
|
co, vertco,
|
|
V3D_PROJ_TEST_CLIP_BB | V3D_PROJ_TEST_CLIP_NEAR) == V3D_PROJ_RET_OK)
|
|
{
|
|
float delta[2];
|
|
float dist_squared;
|
|
|
|
sub_v2_v2v2(delta, mval, vertco);
|
|
dist_squared = dot_v2v2(delta, delta); /* len squared */
|
|
if (dist_squared <= brush_size_pressure * brush_size_pressure) {
|
|
Brush *brush = paint_brush(&vp->paint);
|
|
const float dist = sqrtf(dist_squared);
|
|
return BKE_brush_curve_strength_clamp(brush, dist, brush_size_pressure);
|
|
}
|
|
}
|
|
|
|
return 0.0f;
|
|
}
|
|
|
|
static float calc_vp_alpha_dl(VPaint *vp, ViewContext *vc,
|
|
float vpimat[3][3], const DMCoNo *v_co_no,
|
|
const float mval[2],
|
|
const float brush_size_pressure, const float brush_alpha_pressure)
|
|
{
|
|
float strength = calc_vp_strength_dl(vp, vc, v_co_no->co, mval, brush_size_pressure);
|
|
|
|
if (strength > 0.0f) {
|
|
float alpha = brush_alpha_pressure * strength;
|
|
|
|
if (vp->flag & VP_NORMALS) {
|
|
float dvec[3];
|
|
|
|
/* transpose ! */
|
|
dvec[2] = dot_v3v3(vpimat[2], v_co_no->no);
|
|
if (dvec[2] > 0.0f) {
|
|
dvec[0] = dot_v3v3(vpimat[0], v_co_no->no);
|
|
dvec[1] = dot_v3v3(vpimat[1], v_co_no->no);
|
|
|
|
alpha *= dvec[2] / len_v3(dvec);
|
|
}
|
|
else {
|
|
return 0.0f;
|
|
}
|
|
}
|
|
|
|
return alpha;
|
|
}
|
|
|
|
return 0.0f;
|
|
}
|
|
|
|
|
|
BLI_INLINE float wval_blend(const float weight, const float paintval, const float alpha)
|
|
{
|
|
return (paintval * alpha) + (weight * (1.0f - alpha));
|
|
}
|
|
BLI_INLINE float wval_add(const float weight, const float paintval, const float alpha)
|
|
{
|
|
return weight + (paintval * alpha);
|
|
}
|
|
BLI_INLINE float wval_sub(const float weight, const float paintval, const float alpha)
|
|
{
|
|
return weight - (paintval * alpha);
|
|
}
|
|
BLI_INLINE float wval_mul(const float weight, const float paintval, const float alpha)
|
|
{ /* first mul, then blend the fac */
|
|
return ((1.0f - alpha) + (alpha * paintval)) * weight;
|
|
}
|
|
BLI_INLINE float wval_lighten(const float weight, const float paintval, const float alpha)
|
|
{
|
|
return (weight < paintval) ? wval_blend(weight, paintval, alpha) : weight;
|
|
}
|
|
BLI_INLINE float wval_darken(const float weight, const float paintval, const float alpha)
|
|
{
|
|
return (weight > paintval) ? wval_blend(weight, paintval, alpha) : weight;
|
|
}
|
|
|
|
|
|
/* vpaint has 'vpaint_blend_tool' */
|
|
/* result is not clamped from [0-1] */
|
|
static float wpaint_blend_tool(const int tool,
|
|
/* dw->weight */
|
|
const float weight,
|
|
const float paintval, const float alpha)
|
|
{
|
|
switch (tool) {
|
|
case PAINT_BLEND_MIX:
|
|
case PAINT_BLEND_BLUR: return wval_blend(weight, paintval, alpha);
|
|
case PAINT_BLEND_ADD: return wval_add(weight, paintval, alpha);
|
|
case PAINT_BLEND_SUB: return wval_sub(weight, paintval, alpha);
|
|
case PAINT_BLEND_MUL: return wval_mul(weight, paintval, alpha);
|
|
case PAINT_BLEND_LIGHTEN: return wval_lighten(weight, paintval, alpha);
|
|
case PAINT_BLEND_DARKEN: return wval_darken(weight, paintval, alpha);
|
|
default:
|
|
BLI_assert(0);
|
|
return 0.0f;
|
|
}
|
|
}
|
|
|
|
/* vpaint has 'vpaint_blend' */
|
|
static float wpaint_blend(VPaint *wp, float weight, float weight_prev,
|
|
const float alpha, float paintval,
|
|
const float brush_alpha_value,
|
|
const short do_flip, const short do_multipaint_totsel)
|
|
{
|
|
Brush *brush = paint_brush(&wp->paint);
|
|
int tool = brush->vertexpaint_tool;
|
|
|
|
if (do_flip) {
|
|
switch (tool) {
|
|
case PAINT_BLEND_MIX:
|
|
paintval = 1.f - paintval; break;
|
|
case PAINT_BLEND_ADD:
|
|
tool = PAINT_BLEND_SUB; break;
|
|
case PAINT_BLEND_SUB:
|
|
tool = PAINT_BLEND_ADD; break;
|
|
case PAINT_BLEND_LIGHTEN:
|
|
tool = PAINT_BLEND_DARKEN; break;
|
|
case PAINT_BLEND_DARKEN:
|
|
tool = PAINT_BLEND_LIGHTEN; break;
|
|
}
|
|
}
|
|
|
|
weight = wpaint_blend_tool(tool, weight, paintval, alpha);
|
|
|
|
/* delay clamping until the end so multi-paint can function when the active group is at the limits */
|
|
if (do_multipaint_totsel == FALSE) {
|
|
CLAMP(weight, 0.0f, 1.0f);
|
|
}
|
|
|
|
/* if no spray, clip result with orig weight & orig alpha */
|
|
if ((wp->flag & VP_SPRAY) == 0) {
|
|
if (do_multipaint_totsel == FALSE) {
|
|
float testw = wpaint_blend_tool(tool, weight_prev, paintval, brush_alpha_value);
|
|
|
|
CLAMP(testw, 0.0f, 1.0f);
|
|
if (testw < weight_prev) {
|
|
if (weight < testw) weight = testw;
|
|
else if (weight > weight_prev) weight = weight_prev;
|
|
}
|
|
else {
|
|
if (weight > testw) weight = testw;
|
|
else if (weight < weight_prev) weight = weight_prev;
|
|
}
|
|
}
|
|
}
|
|
|
|
return weight;
|
|
}
|
|
|
|
/* ----------------------------------------------------- */
|
|
|
|
|
|
/* sets wp->weight to the closest weight value to vertex */
|
|
/* note: we cant sample frontbuf, weight colors are interpolated too unpredictable */
|
|
static int weight_sample_invoke(bContext *C, wmOperator *op, wmEvent *event)
|
|
{
|
|
ViewContext vc;
|
|
Mesh *me;
|
|
short change = FALSE;
|
|
|
|
view3d_set_viewcontext(C, &vc);
|
|
me = BKE_mesh_from_object(vc.obact);
|
|
|
|
if (me && me->dvert && vc.v3d && vc.rv3d) {
|
|
const int use_vert_sel = (me->editflag & ME_EDIT_PAINT_VERT_SEL) != 0;
|
|
int v_idx_best = -1;
|
|
unsigned int index;
|
|
|
|
view3d_operator_needs_opengl(C);
|
|
ED_view3d_init_mats_rv3d(vc.obact, vc.rv3d);
|
|
|
|
if (use_vert_sel) {
|
|
if (ED_mesh_pick_vert(C, vc.obact, event->mval, &index, ED_MESH_PICK_DEFAULT_VERT_SIZE, TRUE)) {
|
|
v_idx_best = index;
|
|
}
|
|
}
|
|
else {
|
|
if (ED_mesh_pick_face_vert(C, vc.obact, event->mval, &index, ED_MESH_PICK_DEFAULT_FACE_SIZE)) {
|
|
v_idx_best = index;
|
|
}
|
|
else if (ED_mesh_pick_face(C, vc.obact, event->mval, &index, ED_MESH_PICK_DEFAULT_FACE_SIZE)) {
|
|
/* this relies on knowning the internal worksings of ED_mesh_pick_face_vert() */
|
|
BKE_report(op->reports, RPT_WARNING, "The modifier used does not support deformed locations");
|
|
}
|
|
}
|
|
|
|
if (v_idx_best != -1) { /* should always be valid */
|
|
ToolSettings *ts = vc.scene->toolsettings;
|
|
Brush *brush = paint_brush(&ts->wpaint->paint);
|
|
const int vgroup_active = vc.obact->actdef - 1;
|
|
float vgroup_weight = defvert_find_weight(&me->dvert[v_idx_best], vgroup_active);
|
|
BKE_brush_weight_set(vc.scene, brush, vgroup_weight);
|
|
change = TRUE;
|
|
}
|
|
}
|
|
|
|
if (change) {
|
|
/* not really correct since the brush didnt change, but redraws the toolbar */
|
|
WM_main_add_notifier(NC_BRUSH | NA_EDITED, NULL); /* ts->wpaint->paint.brush */
|
|
|
|
return OPERATOR_FINISHED;
|
|
}
|
|
else {
|
|
return OPERATOR_CANCELLED;
|
|
}
|
|
}
|
|
|
|
void PAINT_OT_weight_sample(wmOperatorType *ot)
|
|
{
|
|
/* identifiers */
|
|
ot->name = "Weight Paint Sample Weight";
|
|
ot->idname = "PAINT_OT_weight_sample";
|
|
ot->description = "Use the mouse to sample a weight in the 3D view";
|
|
|
|
/* api callbacks */
|
|
ot->invoke = weight_sample_invoke;
|
|
ot->poll = weight_paint_mode_poll;
|
|
|
|
/* flags */
|
|
ot->flag = OPTYPE_UNDO;
|
|
}
|
|
|
|
/* samples cursor location, and gives menu with vertex groups to activate */
|
|
static int weight_paint_sample_enum_itemf__helper(const MDeformVert *dvert, const int defbase_tot, int *groups)
|
|
{
|
|
/* this func fills in used vgroup's */
|
|
int found = FALSE;
|
|
int i = dvert->totweight;
|
|
MDeformWeight *dw;
|
|
for (dw = dvert->dw; i > 0; dw++, i--) {
|
|
if (dw->def_nr < defbase_tot) {
|
|
groups[dw->def_nr] = TRUE;
|
|
found = TRUE;
|
|
}
|
|
}
|
|
return found;
|
|
}
|
|
static EnumPropertyItem *weight_paint_sample_enum_itemf(bContext *C, PointerRNA *UNUSED(ptr), PropertyRNA *UNUSED(prop), int *free)
|
|
{
|
|
if (C) {
|
|
wmWindow *win = CTX_wm_window(C);
|
|
if (win && win->eventstate) {
|
|
ViewContext vc;
|
|
Mesh *me;
|
|
|
|
view3d_set_viewcontext(C, &vc);
|
|
me = BKE_mesh_from_object(vc.obact);
|
|
|
|
if (me && me->dvert && vc.v3d && vc.rv3d && vc.obact->defbase.first) {
|
|
const int defbase_tot = BLI_countlist(&vc.obact->defbase);
|
|
const int use_vert_sel = (me->editflag & ME_EDIT_PAINT_VERT_SEL) != 0;
|
|
int *groups = MEM_callocN(defbase_tot * sizeof(int), "groups");
|
|
int found = FALSE;
|
|
unsigned int index;
|
|
|
|
int mval[2] = {win->eventstate->x - vc.ar->winrct.xmin,
|
|
win->eventstate->y - vc.ar->winrct.ymin};
|
|
|
|
view3d_operator_needs_opengl(C);
|
|
ED_view3d_init_mats_rv3d(vc.obact, vc.rv3d);
|
|
|
|
if (use_vert_sel) {
|
|
if (ED_mesh_pick_vert(C, vc.obact, mval, &index, ED_MESH_PICK_DEFAULT_VERT_SIZE, TRUE)) {
|
|
MDeformVert *dvert = &me->dvert[index];
|
|
found |= weight_paint_sample_enum_itemf__helper(dvert, defbase_tot, groups);
|
|
}
|
|
}
|
|
else {
|
|
if (ED_mesh_pick_face(C, vc.obact, mval, &index, ED_MESH_PICK_DEFAULT_FACE_SIZE)) {
|
|
MPoly *mp = &me->mpoly[index];
|
|
unsigned int fidx = mp->totloop - 1;
|
|
|
|
do {
|
|
MDeformVert *dvert = &me->dvert[me->mloop[mp->loopstart + fidx].v];
|
|
found |= weight_paint_sample_enum_itemf__helper(dvert, defbase_tot, groups);
|
|
} while (fidx--);
|
|
}
|
|
}
|
|
|
|
if (found == FALSE) {
|
|
MEM_freeN(groups);
|
|
}
|
|
else {
|
|
EnumPropertyItem *item = NULL, item_tmp = {0};
|
|
int totitem = 0;
|
|
int i = 0;
|
|
bDeformGroup *dg;
|
|
for (dg = vc.obact->defbase.first; dg && i < defbase_tot; i++, dg = dg->next) {
|
|
if (groups[i]) {
|
|
item_tmp.identifier = item_tmp.name = dg->name;
|
|
item_tmp.value = i;
|
|
RNA_enum_item_add(&item, &totitem, &item_tmp);
|
|
}
|
|
}
|
|
|
|
RNA_enum_item_end(&item, &totitem);
|
|
*free = 1;
|
|
|
|
MEM_freeN(groups);
|
|
return item;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return DummyRNA_NULL_items;
|
|
}
|
|
|
|
static int weight_sample_group_exec(bContext *C, wmOperator *op)
|
|
{
|
|
int type = RNA_enum_get(op->ptr, "group");
|
|
ViewContext vc;
|
|
view3d_set_viewcontext(C, &vc);
|
|
|
|
BLI_assert(type + 1 >= 0);
|
|
vc.obact->actdef = type + 1;
|
|
|
|
DAG_id_tag_update(&vc.obact->id, OB_RECALC_DATA);
|
|
WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, vc.obact);
|
|
return OPERATOR_FINISHED;
|
|
}
|
|
|
|
/* TODO, we could make this a menu into OBJECT_OT_vertex_group_set_active rather than its own operator */
|
|
void PAINT_OT_weight_sample_group(wmOperatorType *ot)
|
|
{
|
|
PropertyRNA *prop = NULL;
|
|
|
|
/* identifiers */
|
|
ot->name = "Weight Paint Sample Group";
|
|
ot->idname = "PAINT_OT_weight_sample_group";
|
|
ot->description = "Select one of the vertex groups available under current mouse position";
|
|
|
|
/* api callbacks */
|
|
ot->exec = weight_sample_group_exec;
|
|
ot->invoke = WM_menu_invoke;
|
|
ot->poll = weight_paint_mode_poll;
|
|
|
|
/* flags */
|
|
ot->flag = OPTYPE_UNDO;
|
|
|
|
/* keyingset to use (dynamic enum) */
|
|
prop = RNA_def_enum(ot->srna, "group", DummyRNA_DEFAULT_items, 0, "Keying Set", "The Keying Set to use");
|
|
RNA_def_enum_funcs(prop, weight_paint_sample_enum_itemf);
|
|
ot->prop = prop;
|
|
}
|
|
|
|
static void do_weight_paint_normalize_all(MDeformVert *dvert, const int defbase_tot, const char *vgroup_validmap)
|
|
{
|
|
float sum = 0.0f, fac;
|
|
unsigned int i, tot = 0;
|
|
MDeformWeight *dw;
|
|
|
|
for (i = dvert->totweight, dw = dvert->dw; i != 0; i--, dw++) {
|
|
if (dw->def_nr < defbase_tot && vgroup_validmap[dw->def_nr]) {
|
|
tot++;
|
|
sum += dw->weight;
|
|
}
|
|
}
|
|
|
|
if ((tot == 0) || (sum == 1.0f)) {
|
|
return;
|
|
}
|
|
|
|
if (sum != 0.0f) {
|
|
fac = 1.0f / sum;
|
|
|
|
for (i = dvert->totweight, dw = dvert->dw; i != 0; i--, dw++) {
|
|
if (dw->def_nr < defbase_tot && vgroup_validmap[dw->def_nr]) {
|
|
dw->weight *= fac;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
/* hrmf, not a factor in this case */
|
|
fac = 1.0f / tot;
|
|
|
|
for (i = dvert->totweight, dw = dvert->dw; i != 0; i--, dw++) {
|
|
if (dw->def_nr < defbase_tot && vgroup_validmap[dw->def_nr]) {
|
|
dw->weight = fac;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* same as function above except it normalizes against the active vgroup which remains unchanged
|
|
*
|
|
* note that the active is just the group which is unchanged, it can be any,
|
|
* can also be -1 to normalize all but in that case call 'do_weight_paint_normalize_all' */
|
|
static void do_weight_paint_normalize_all_active(MDeformVert *dvert, const int defbase_tot, const char *vgroup_validmap,
|
|
const int vgroup_active)
|
|
{
|
|
float sum = 0.0f, fac;
|
|
unsigned int i, tot = 0;
|
|
MDeformWeight *dw;
|
|
float act_weight = 0.0f;
|
|
|
|
for (i = dvert->totweight, dw = dvert->dw; i != 0; i--, dw++) {
|
|
if (dw->def_nr < defbase_tot && vgroup_validmap[dw->def_nr]) {
|
|
if (dw->def_nr != vgroup_active) {
|
|
sum += dw->weight;
|
|
tot++;
|
|
}
|
|
else {
|
|
act_weight = dw->weight;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ((tot == 0) || (sum + act_weight == 1.0f)) {
|
|
return;
|
|
}
|
|
|
|
if (sum != 0.0f) {
|
|
fac = (1.0f / sum) * (1.0f - act_weight);
|
|
|
|
for (i = dvert->totweight, dw = dvert->dw; i != 0; i--, dw++) {
|
|
if (dw->def_nr < defbase_tot && vgroup_validmap[dw->def_nr]) {
|
|
if (dw->def_nr != vgroup_active) {
|
|
dw->weight *= fac;
|
|
|
|
/* paranoid but possibly with float error */
|
|
CLAMP(dw->weight, 0.0f, 1.0f);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
/* corner case where we need to scale all weights evenly because they're all zero */
|
|
|
|
/* hrmf, not a factor in this case */
|
|
fac = (1.0f - act_weight) / tot;
|
|
|
|
/* paranoid but possibly with float error */
|
|
CLAMP(fac, 0.0f, 1.0f);
|
|
|
|
for (i = dvert->totweight, dw = dvert->dw; i != 0; i--, dw++) {
|
|
if (dw->def_nr < defbase_tot && vgroup_validmap[dw->def_nr]) {
|
|
if (dw->def_nr != vgroup_active) {
|
|
dw->weight = fac;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* See if the current deform vertex has a locked group
|
|
*/
|
|
static char has_locked_group(MDeformVert *dvert, const int defbase_tot,
|
|
const char *bone_groups, const char *lock_flags)
|
|
{
|
|
int i;
|
|
MDeformWeight *dw;
|
|
|
|
for (i = dvert->totweight, dw = dvert->dw; i != 0; i--, dw++) {
|
|
if (dw->def_nr < defbase_tot) {
|
|
if (bone_groups[dw->def_nr] && lock_flags[dw->def_nr] && dw->weight > 0.0f) {
|
|
return TRUE;
|
|
}
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
static int has_locked_group_selected(int defbase_tot, const char *defbase_sel, const char *lock_flags)
|
|
{
|
|
int i;
|
|
for (i = 0; i < defbase_tot; i++) {
|
|
if (defbase_sel[i] && lock_flags[i]) {
|
|
return TRUE;
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
#if 0 /* UNUSED */
|
|
static int has_unselected_unlocked_bone_group(int defbase_tot, char *defbase_sel, int selected, char *lock_flags, char *vgroup_validmap)
|
|
{
|
|
int i;
|
|
if (defbase_tot == selected) {
|
|
return FALSE;
|
|
}
|
|
for (i = 0; i < defbase_tot; i++) {
|
|
if (vgroup_validmap[i] && !defbase_sel[i] && !lock_flags[i]) {
|
|
return TRUE;
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
#endif
|
|
|
|
|
|
static void multipaint_selection(MDeformVert *dvert, const int defbase_tot, float change, const char *defbase_sel)
|
|
{
|
|
int i;
|
|
MDeformWeight *dw;
|
|
float val;
|
|
/* make sure they are all at most 1 after the change */
|
|
for (i = 0; i < defbase_tot; i++) {
|
|
if (defbase_sel[i]) {
|
|
dw = defvert_find_index(dvert, i);
|
|
if (dw && dw->weight) {
|
|
val = dw->weight * change;
|
|
if (val > 1) {
|
|
/* TODO: when the change is reduced, you need to recheck
|
|
* the earlier values to make sure they are not 0
|
|
* (precision error) */
|
|
change = 1.0f / dw->weight;
|
|
}
|
|
/* the value should never reach zero while multi-painting if it
|
|
* was nonzero beforehand */
|
|
if (val <= 0) {
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/* apply the valid change */
|
|
for (i = 0; i < defbase_tot; i++) {
|
|
if (defbase_sel[i]) {
|
|
dw = defvert_find_index(dvert, i);
|
|
if (dw && dw->weight) {
|
|
dw->weight = dw->weight * change;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* move all change onto valid, unchanged groups. If there is change left over,
|
|
* then return it.
|
|
* assumes there are valid groups to shift weight onto */
|
|
static float redistribute_change(MDeformVert *ndv, const int defbase_tot,
|
|
char *change_status, const char change_me, int changeto,
|
|
float totchange, float total_valid,
|
|
char do_auto_normalize)
|
|
{
|
|
float was_change;
|
|
float change;
|
|
float oldval;
|
|
MDeformWeight *ndw;
|
|
int i;
|
|
do {
|
|
/* assume there is no change until you see one */
|
|
was_change = FALSE;
|
|
/* change each group by the same amount each time */
|
|
change = totchange / total_valid;
|
|
for (i = 0; i < ndv->totweight && total_valid && totchange; i++) {
|
|
ndw = (ndv->dw + i);
|
|
|
|
/* ignore anything outside the value range */
|
|
if (ndw->def_nr < defbase_tot) {
|
|
|
|
/* change only the groups with a valid status */
|
|
if (change_status[ndw->def_nr] == change_me) {
|
|
oldval = ndw->weight;
|
|
/* if auto normalize is active, don't worry about upper bounds */
|
|
if (do_auto_normalize == FALSE && ndw->weight + change > 1) {
|
|
totchange -= 1.0f - ndw->weight;
|
|
ndw->weight = 1.0f;
|
|
/* stop the changes to this group */
|
|
change_status[ndw->def_nr] = changeto;
|
|
total_valid--;
|
|
}
|
|
else if (ndw->weight + change < 0) { /* check the lower bound */
|
|
totchange -= ndw->weight;
|
|
ndw->weight = 0;
|
|
change_status[ndw->def_nr] = changeto;
|
|
total_valid--;
|
|
}
|
|
else { /* a perfectly valid change occurred to ndw->weight */
|
|
totchange -= change;
|
|
ndw->weight += change;
|
|
}
|
|
/* see if there was a change */
|
|
if (oldval != ndw->weight) {
|
|
was_change = TRUE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/* don't go again if there was no change, if there is no valid group,
|
|
* or there is no change left */
|
|
} while (was_change && total_valid && totchange);
|
|
/* left overs */
|
|
return totchange;
|
|
}
|
|
static float get_mp_change(MDeformVert *odv, const int defbase_tot, const char *defbase_sel, float brush_change);
|
|
/* observe the changes made to the weights of groups.
|
|
* make sure all locked groups on the vertex have the same deformation
|
|
* by moving the changes made to groups onto other unlocked groups */
|
|
static void enforce_locks(MDeformVert *odv, MDeformVert *ndv,
|
|
const int defbase_tot, const char *defbase_sel,
|
|
const char *lock_flags, const char *vgroup_validmap,
|
|
char do_auto_normalize, char do_multipaint)
|
|
{
|
|
float totchange = 0.0f;
|
|
float totchange_allowed = 0.0f;
|
|
float left_over;
|
|
|
|
int total_valid = 0;
|
|
int total_changed = 0;
|
|
unsigned int i;
|
|
MDeformWeight *ndw;
|
|
MDeformWeight *odw;
|
|
|
|
float changed_sum = 0.0f;
|
|
|
|
char *change_status;
|
|
|
|
if (!lock_flags || !has_locked_group(ndv, defbase_tot, vgroup_validmap, lock_flags)) {
|
|
return;
|
|
}
|
|
/* record if a group was changed, unlocked and not changed, or locked */
|
|
change_status = MEM_callocN(sizeof(char) * defbase_tot, "unlocked_unchanged");
|
|
|
|
for (i = 0; i < defbase_tot; i++) {
|
|
ndw = defvert_find_index(ndv, i);
|
|
odw = defvert_find_index(odv, i);
|
|
/* the weights are zero, so we can assume a lot */
|
|
if (!ndw || !odw) {
|
|
if (!lock_flags[i] && vgroup_validmap[i]) {
|
|
defvert_verify_index(odv, i);
|
|
defvert_verify_index(ndv, i);
|
|
total_valid++;
|
|
change_status[i] = 1; /* can be altered while redistributing */
|
|
}
|
|
continue;
|
|
}
|
|
/* locked groups should not be changed */
|
|
if (lock_flags[i]) {
|
|
ndw->weight = odw->weight;
|
|
}
|
|
else if (ndw->weight != odw->weight) { /* changed groups are handled here */
|
|
totchange += ndw->weight - odw->weight;
|
|
changed_sum += ndw->weight;
|
|
change_status[i] = 2; /* was altered already */
|
|
total_changed++;
|
|
} /* unchanged, unlocked bone groups are handled here */
|
|
else if (vgroup_validmap[i]) {
|
|
totchange_allowed += ndw->weight;
|
|
total_valid++;
|
|
change_status[i] = 1; /* can be altered while redistributing */
|
|
}
|
|
}
|
|
/* if there was any change, redistribute it */
|
|
if (total_changed) {
|
|
/* auto normalize will allow weights to temporarily go above 1 in redistribution */
|
|
if (vgroup_validmap && total_changed < 0 && total_valid) {
|
|
totchange_allowed = total_valid;
|
|
}
|
|
/* the way you modify the unlocked + unchanged groups is different depending
|
|
* on whether or not you are painting the weight(s) up or down */
|
|
if (totchange < 0) {
|
|
totchange_allowed = total_valid - totchange_allowed;
|
|
}
|
|
else {
|
|
totchange_allowed *= -1;
|
|
}
|
|
/* there needs to be change allowed, or you should not bother */
|
|
if (totchange_allowed) {
|
|
left_over = 0;
|
|
if (fabsf(totchange_allowed) < fabsf(totchange)) {
|
|
/* this amount goes back onto the changed, unlocked weights */
|
|
left_over = fabsf(fabsf(totchange) - fabsf(totchange_allowed));
|
|
if (totchange > 0) {
|
|
left_over *= -1;
|
|
}
|
|
}
|
|
else {
|
|
/* all of the change will be permitted */
|
|
totchange_allowed = -totchange;
|
|
}
|
|
/* move the weight evenly between the allowed groups, move excess back onto the used groups based on the change */
|
|
totchange_allowed = redistribute_change(ndv, defbase_tot, change_status, 1, -1, totchange_allowed, total_valid, do_auto_normalize);
|
|
left_over += totchange_allowed;
|
|
if (left_over) {
|
|
/* more than one nonzero weights were changed with the same ratio with multipaint, so keep them changed that way! */
|
|
if (total_changed > 1 && do_multipaint) {
|
|
float undo_change = get_mp_change(ndv, defbase_tot, defbase_sel, left_over);
|
|
multipaint_selection(ndv, defbase_tot, undo_change, defbase_sel);
|
|
}
|
|
/* or designatedw is still -1 put weight back as evenly as possible */
|
|
else {
|
|
redistribute_change(ndv, defbase_tot, change_status, 2, -2, left_over, total_changed, do_auto_normalize);
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
/* reset the weights */
|
|
MDeformWeight *dw_old = odv->dw;
|
|
MDeformWeight *dw_new = ndv->dw;
|
|
|
|
for (i = odv->totweight; i != 0; i--, dw_old++, dw_new++) {
|
|
dw_new->weight = dw_old->weight;
|
|
}
|
|
}
|
|
}
|
|
|
|
MEM_freeN(change_status);
|
|
}
|
|
|
|
/* multi-paint's initial, potential change is computed here based on the user's stroke */
|
|
static float get_mp_change(MDeformVert *odv, const int defbase_tot, const char *defbase_sel, float brush_change)
|
|
{
|
|
float selwsum = 0.0f;
|
|
unsigned int i;
|
|
MDeformWeight *dw = odv->dw;
|
|
|
|
for (i = odv->totweight; i != 0; i--, dw++) {
|
|
if (dw->def_nr < defbase_tot) {
|
|
if (defbase_sel[dw->def_nr]) {
|
|
selwsum += dw->weight;
|
|
}
|
|
}
|
|
}
|
|
if (selwsum && selwsum + brush_change > 0) {
|
|
return (selwsum + brush_change) / selwsum;
|
|
}
|
|
return 0.0f;
|
|
}
|
|
|
|
/* change the weights back to the wv's weights
|
|
* it assumes you already have the correct pointer index */
|
|
static void defvert_reset_to_prev(MDeformVert *dv_prev, MDeformVert *dv)
|
|
{
|
|
MDeformWeight *dw = dv->dw;
|
|
MDeformWeight *dw_prev;
|
|
unsigned int i;
|
|
for (i = dv->totweight; i != 0; i--, dw++) {
|
|
dw_prev = defvert_find_index(dv_prev, dw->def_nr);
|
|
/* if there was no w when there is a d, then the old weight was 0 */
|
|
dw->weight = dw_prev ? dw_prev->weight : 0.0f;
|
|
}
|
|
}
|
|
|
|
static void clamp_weights(MDeformVert *dvert)
|
|
{
|
|
MDeformWeight *dw = dvert->dw;
|
|
unsigned int i;
|
|
for (i = dvert->totweight; i != 0; i--, dw++) {
|
|
CLAMP(dw->weight, 0.0f, 1.0f);
|
|
}
|
|
}
|
|
|
|
/* struct to avoid passing many args each call to do_weight_paint_vertex()
|
|
* this _could_ be made a part of the operators 'WPaintData' struct, or at
|
|
* least a member, but for now keep its own struct, initialized on every
|
|
* paint stroke update - campbell */
|
|
typedef struct WeightPaintInfo {
|
|
|
|
int defbase_tot;
|
|
|
|
/* both must add up to 'defbase_tot' */
|
|
int defbase_tot_sel;
|
|
int defbase_tot_unsel;
|
|
|
|
int vgroup_active; /* (ob->actdef - 1) */
|
|
int vgroup_mirror; /* mirror group or -1 */
|
|
|
|
const char *lock_flags; /* boolean array for locked bones,
|
|
* length of defbase_tot */
|
|
const char *defbase_sel; /* boolean array for selected bones,
|
|
* length of defbase_tot, cant be const because of how its passed */
|
|
|
|
const char *vgroup_validmap; /* same as WeightPaintData.vgroup_validmap,
|
|
* only added here for convenience */
|
|
|
|
char do_flip;
|
|
char do_multipaint;
|
|
char do_auto_normalize;
|
|
|
|
float brush_alpha_value; /* result of BKE_brush_alpha_get() */
|
|
} WeightPaintInfo;
|
|
|
|
/* fresh start to make multi-paint and locking modular */
|
|
/* returns TRUE if it thinks you need to reset the weights due to
|
|
* normalizing while multi-painting
|
|
*
|
|
* note: this assumes dw->def_nr range has been checked by the caller
|
|
*/
|
|
static int apply_mp_locks_normalize(Mesh *me, const WeightPaintInfo *wpi,
|
|
const unsigned int index,
|
|
MDeformWeight *dw, MDeformWeight *tdw,
|
|
float change, float oldChange,
|
|
float oldw, float neww)
|
|
{
|
|
MDeformVert *dv = &me->dvert[index];
|
|
MDeformVert dv_test = {NULL};
|
|
|
|
dv_test.dw = MEM_dupallocN(dv->dw);
|
|
dv_test.flag = dv->flag;
|
|
dv_test.totweight = dv->totweight;
|
|
/* do not multi-paint if a locked group is selected or the active group is locked
|
|
* !lock_flags[dw->def_nr] helps if nothing is selected, but active group is locked */
|
|
if ((wpi->lock_flags == NULL) ||
|
|
((wpi->lock_flags[dw->def_nr] == FALSE) && /* def_nr range has to be checked for by caller */
|
|
has_locked_group_selected(wpi->defbase_tot, wpi->defbase_sel, wpi->lock_flags) == FALSE))
|
|
{
|
|
if (wpi->do_multipaint && wpi->defbase_tot_sel > 1) {
|
|
if (change && change != 1) {
|
|
multipaint_selection(dv, wpi->defbase_tot, change, wpi->defbase_sel);
|
|
}
|
|
}
|
|
else { /* this lets users paint normally, but don't let them paint locked groups */
|
|
dw->weight = neww;
|
|
}
|
|
}
|
|
clamp_weights(dv);
|
|
|
|
enforce_locks(&dv_test, dv, wpi->defbase_tot, wpi->defbase_sel, wpi->lock_flags, wpi->vgroup_validmap, wpi->do_auto_normalize, wpi->do_multipaint);
|
|
|
|
if (wpi->do_auto_normalize) {
|
|
/* XXX - should we pass the active group? - currently '-1' */
|
|
do_weight_paint_normalize_all(dv, wpi->defbase_tot, wpi->vgroup_validmap);
|
|
}
|
|
|
|
if (oldChange && wpi->do_multipaint && wpi->defbase_tot_sel > 1) {
|
|
if (tdw->weight != oldw) {
|
|
if (neww > oldw) {
|
|
if (tdw->weight <= oldw) {
|
|
MEM_freeN(dv_test.dw);
|
|
return TRUE;
|
|
}
|
|
}
|
|
else {
|
|
if (tdw->weight >= oldw) {
|
|
MEM_freeN(dv_test.dw);
|
|
return TRUE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
MEM_freeN(dv_test.dw);
|
|
return FALSE;
|
|
}
|
|
|
|
/* within the current dvert index, get the dw that is selected and has a weight
|
|
* above 0, this helps multi-paint */
|
|
static int get_first_selected_nonzero_weight(MDeformVert *dvert, const int defbase_tot, const char *defbase_sel)
|
|
{
|
|
int i;
|
|
MDeformWeight *dw = dvert->dw;
|
|
for (i = 0; i < dvert->totweight; i++, dw++) {
|
|
if (dw->def_nr < defbase_tot) {
|
|
if (defbase_sel[dw->def_nr] && dw->weight > 0.0f) {
|
|
return i;
|
|
}
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static void do_weight_paint_vertex(
|
|
/* vars which remain the same for every vert */
|
|
VPaint *wp, Object *ob, const WeightPaintInfo *wpi,
|
|
/* vars which change on each stroke */
|
|
const unsigned int index, float alpha, float paintweight
|
|
)
|
|
{
|
|
Mesh *me = ob->data;
|
|
MDeformVert *dv = &me->dvert[index];
|
|
|
|
MDeformWeight *dw, *dw_prev;
|
|
|
|
/* mirror vars */
|
|
int index_mirr;
|
|
int vgroup_mirr;
|
|
|
|
MDeformVert *dv_mirr;
|
|
MDeformWeight *dw_mirr;
|
|
|
|
const short do_multipaint_totsel = (wpi->do_multipaint && wpi->defbase_tot_sel > 1);
|
|
|
|
if (wp->flag & VP_ONLYVGROUP) {
|
|
dw = defvert_find_index(dv, wpi->vgroup_active);
|
|
dw_prev = defvert_find_index(wp->wpaint_prev + index, wpi->vgroup_active);
|
|
}
|
|
else {
|
|
dw = defvert_verify_index(dv, wpi->vgroup_active);
|
|
dw_prev = defvert_verify_index(wp->wpaint_prev + index, wpi->vgroup_active);
|
|
}
|
|
|
|
if (dw == NULL || dw_prev == NULL) {
|
|
return;
|
|
}
|
|
|
|
|
|
/* from now on we can check if mirrors enabled if this var is -1 and not bother with the flag */
|
|
if (me->editflag & ME_EDIT_MIRROR_X) {
|
|
index_mirr = mesh_get_x_mirror_vert(ob, index);
|
|
vgroup_mirr = (wpi->vgroup_mirror != -1) ? wpi->vgroup_mirror : wpi->vgroup_active;
|
|
|
|
/* another possible error - mirror group _and_ active group are the same (which is fine),
|
|
* but we also are painting onto a center vertex - this would paint the same weight twice */
|
|
if (index_mirr == index && vgroup_mirr == wpi->vgroup_active) {
|
|
index_mirr = vgroup_mirr = -1;
|
|
}
|
|
}
|
|
else {
|
|
index_mirr = vgroup_mirr = -1;
|
|
}
|
|
|
|
|
|
/* get the mirror def vars */
|
|
if (index_mirr != -1) {
|
|
dv_mirr = &me->dvert[index_mirr];
|
|
if (wp->flag & VP_ONLYVGROUP) {
|
|
dw_mirr = defvert_find_index(dv_mirr, vgroup_mirr);
|
|
|
|
if (dw_mirr == NULL) {
|
|
index_mirr = vgroup_mirr = -1;
|
|
dv_mirr = NULL;
|
|
}
|
|
}
|
|
else {
|
|
if (index != index_mirr) {
|
|
dw_mirr = defvert_verify_index(dv_mirr, vgroup_mirr);
|
|
}
|
|
else {
|
|
/* dv and dv_mirr are the same */
|
|
int totweight_prev = dv_mirr->totweight;
|
|
int dw_offset = (int)(dw - dv_mirr->dw);
|
|
dw_mirr = defvert_verify_index(dv_mirr, vgroup_mirr);
|
|
|
|
/* if we added another, get our old one back */
|
|
if (totweight_prev != dv_mirr->totweight) {
|
|
dw = &dv_mirr->dw[dw_offset];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
dv_mirr = NULL;
|
|
dw_mirr = NULL;
|
|
}
|
|
|
|
|
|
/* TODO: De-duplicate the simple weight paint - jason */
|
|
/* ... or not, since its <10 SLOC - campbell */
|
|
|
|
/* If there are no locks or multipaint,
|
|
* then there is no need to run the more complicated checks */
|
|
if ((do_multipaint_totsel == FALSE) &&
|
|
(wpi->lock_flags == NULL || has_locked_group(dv, wpi->defbase_tot, wpi->vgroup_validmap, wpi->lock_flags) == FALSE))
|
|
{
|
|
dw->weight = wpaint_blend(wp, dw->weight, dw_prev->weight, alpha, paintweight,
|
|
wpi->brush_alpha_value, wpi->do_flip, FALSE);
|
|
|
|
/* WATCH IT: take care of the ordering of applying mirror -> normalize,
|
|
* can give wrong results [#26193], least confusing if normalize is done last */
|
|
|
|
/* apply mirror */
|
|
if (index_mirr != -1) {
|
|
/* copy, not paint again */
|
|
dw_mirr->weight = dw->weight;
|
|
}
|
|
|
|
/* apply normalize */
|
|
if (wpi->do_auto_normalize) {
|
|
/* note on normalize - this used to be applied after painting and normalize all weights,
|
|
* in some ways this is good because there is feedback where the more weights involved would
|
|
* 'resist' so you couldn't instantly zero out other weights by painting 1.0 on the active.
|
|
*
|
|
* However this gave a problem since applying mirror, then normalize both verts
|
|
* the resulting weight wont match on both sides.
|
|
*
|
|
* If this 'resisting', slower normalize is nicer, we could call
|
|
* do_weight_paint_normalize_all() and only use...
|
|
* do_weight_paint_normalize_all_active() when normalizing the mirror vertex.
|
|
* - campbell
|
|
*/
|
|
do_weight_paint_normalize_all_active(dv, wpi->defbase_tot, wpi->vgroup_validmap, wpi->vgroup_active);
|
|
|
|
if (index_mirr != -1) {
|
|
/* only normalize if this is not a center vertex, else we get a conflict, normalizing twice */
|
|
if (index != index_mirr) {
|
|
do_weight_paint_normalize_all_active(dv_mirr, wpi->defbase_tot, wpi->vgroup_validmap, vgroup_mirr);
|
|
}
|
|
else {
|
|
/* this case accounts for...
|
|
* - painting onto a center vertex of a mesh
|
|
* - x mirror is enabled
|
|
* - auto normalize is enabled
|
|
* - the group you are painting onto has a L / R version
|
|
*
|
|
* We want L/R vgroups to have the same weight but this cant be if both are over 0.5,
|
|
* We _could_ have special check for that, but this would need its own normalize function which
|
|
* holds 2 groups from changing at once.
|
|
*
|
|
* So! just balance out the 2 weights, it keeps them equal and everything normalized.
|
|
*
|
|
* While it wont hit the desired weight immediately as the user waggles their mouse,
|
|
* constant painting and re-normalizing will get there. this is also just simpler logic.
|
|
* - campbell */
|
|
dw_mirr->weight = dw->weight = (dw_mirr->weight + dw->weight) * 0.5f;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
/* use locks and/or multipaint */
|
|
float oldw;
|
|
float neww;
|
|
/* float testw = 0; */ /* UNUSED */
|
|
float observedChange = 0;
|
|
float change = 0;
|
|
float oldChange = 0;
|
|
int i;
|
|
MDeformWeight *tdw = NULL, *tdw_prev;
|
|
MDeformVert dv_copy = {NULL};
|
|
|
|
oldw = dw->weight;
|
|
neww = wpaint_blend(wp, dw->weight, dw_prev->weight, alpha, paintweight,
|
|
wpi->brush_alpha_value, wpi->do_flip, do_multipaint_totsel);
|
|
|
|
/* setup multi-paint */
|
|
observedChange = neww - oldw;
|
|
if (do_multipaint_totsel && observedChange) {
|
|
dv_copy.dw = MEM_dupallocN(dv->dw);
|
|
dv_copy.flag = dv->flag;
|
|
dv_copy.totweight = dv->totweight;
|
|
tdw = dw;
|
|
tdw_prev = dw_prev;
|
|
change = get_mp_change(&wp->wpaint_prev[index], wpi->defbase_tot, wpi->defbase_sel, observedChange);
|
|
if (change) {
|
|
if (!tdw->weight) {
|
|
i = get_first_selected_nonzero_weight(dv, wpi->defbase_tot, wpi->defbase_sel);
|
|
if (i >= 0) {
|
|
tdw = &(dv->dw[i]);
|
|
tdw_prev = defvert_verify_index(&wp->wpaint_prev[index], tdw->def_nr);
|
|
}
|
|
else {
|
|
change = 0;
|
|
}
|
|
}
|
|
if (change && tdw_prev->weight && tdw_prev->weight * change) {
|
|
if (tdw->weight != tdw_prev->weight) {
|
|
oldChange = tdw->weight / tdw_prev->weight;
|
|
/* testw = tdw_prev->weight * change; */ /* UNUSED */
|
|
if (observedChange > 0) {
|
|
if (change > oldChange) {
|
|
/* reset the weights and use the new change */
|
|
defvert_reset_to_prev(wp->wpaint_prev + index, dv);
|
|
}
|
|
else {
|
|
/* the old change was more significant, so set
|
|
* the change to 0 so that it will not do another multi-paint */
|
|
change = 0;
|
|
}
|
|
}
|
|
else {
|
|
if (change < oldChange) {
|
|
defvert_reset_to_prev(wp->wpaint_prev + index, dv);
|
|
}
|
|
else {
|
|
change = 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
change = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (apply_mp_locks_normalize(me, wpi, index, dw, tdw, change, oldChange, oldw, neww)) {
|
|
defvert_reset_to_prev(&dv_copy, dv);
|
|
change = 0;
|
|
oldChange = 0;
|
|
}
|
|
if (dv_copy.dw) {
|
|
MEM_freeN(dv_copy.dw);
|
|
}
|
|
#if 0
|
|
/* dv may have been altered greatly */
|
|
dw = defvert_find_index(dv, vgroup);
|
|
#else
|
|
dw = NULL; /* UNUSED after assignment, set to NULL to ensure we don't
|
|
* use again, we thats needed un-ifdef the line above */
|
|
(void)dw; /* quiet warnigns */
|
|
#endif
|
|
|
|
/* x mirror painting */
|
|
if (index_mirr != -1) {
|
|
/* copy, not paint again */
|
|
|
|
/* dw_mirr->weight = dw->weight; */ /* TODO, explain the logic in not assigning weight! - campbell */
|
|
apply_mp_locks_normalize(me, wpi, index_mirr, dw_mirr, tdw, change, oldChange, oldw, neww);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* *************** set wpaint operator ****************** */
|
|
|
|
static int set_wpaint(bContext *C, wmOperator *UNUSED(op)) /* toggle */
|
|
{
|
|
Object *ob = CTX_data_active_object(C);
|
|
Scene *scene = CTX_data_scene(C);
|
|
VPaint *wp = scene->toolsettings->wpaint;
|
|
Mesh *me;
|
|
|
|
me = BKE_mesh_from_object(ob);
|
|
if (ob->id.lib || me == NULL) return OPERATOR_PASS_THROUGH;
|
|
|
|
if (ob->mode & OB_MODE_WEIGHT_PAINT) ob->mode &= ~OB_MODE_WEIGHT_PAINT;
|
|
else ob->mode |= OB_MODE_WEIGHT_PAINT;
|
|
|
|
|
|
/* Weightpaint works by overriding colors in mesh,
|
|
* so need to make sure we recalc on enter and
|
|
* exit (exit needs doing regardless because we
|
|
* should redeform).
|
|
*/
|
|
DAG_id_tag_update(&me->id, 0);
|
|
|
|
if (ob->mode & OB_MODE_WEIGHT_PAINT) {
|
|
Object *par;
|
|
|
|
if (wp == NULL)
|
|
wp = scene->toolsettings->wpaint = new_vpaint(1);
|
|
|
|
BKE_paint_init(&wp->paint, PAINT_CURSOR_WEIGHT_PAINT);
|
|
paint_cursor_start(C, weight_paint_poll);
|
|
|
|
mesh_octree_table(ob, NULL, NULL, 's');
|
|
|
|
/* verify if active weight group is also active bone */
|
|
par = modifiers_isDeformedByArmature(ob);
|
|
if (par && (par->mode & OB_MODE_POSE)) {
|
|
bArmature *arm = par->data;
|
|
|
|
if (arm->act_bone)
|
|
ED_vgroup_select_by_name(ob, arm->act_bone->name);
|
|
}
|
|
}
|
|
else {
|
|
mesh_octree_table(NULL, NULL, NULL, 'e');
|
|
mesh_mirrtopo_table(NULL, 'e');
|
|
|
|
if (me->editflag & ME_EDIT_PAINT_VERT_SEL) {
|
|
BKE_mesh_flush_select_from_verts(me);
|
|
}
|
|
else if (me->editflag & ME_EDIT_PAINT_FACE_SEL) {
|
|
BKE_mesh_flush_select_from_polys(me);
|
|
}
|
|
}
|
|
|
|
WM_event_add_notifier(C, NC_SCENE | ND_MODE, scene);
|
|
|
|
return OPERATOR_FINISHED;
|
|
}
|
|
|
|
/* for switching to/from mode */
|
|
static int paint_poll_test(bContext *C)
|
|
{
|
|
Object *ob = CTX_data_active_object(C);
|
|
if (CTX_data_edit_object(C))
|
|
return 0;
|
|
if (CTX_data_active_object(C) == NULL)
|
|
return 0;
|
|
if (!ob->data || ((ID *)ob->data)->lib)
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
void PAINT_OT_weight_paint_toggle(wmOperatorType *ot)
|
|
{
|
|
|
|
/* identifiers */
|
|
ot->name = "Weight Paint Mode";
|
|
ot->idname = "PAINT_OT_weight_paint_toggle";
|
|
ot->description = "Toggle weight paint mode in 3D view";
|
|
|
|
/* api callbacks */
|
|
ot->exec = set_wpaint;
|
|
ot->poll = paint_poll_test;
|
|
|
|
/* flags */
|
|
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
|
|
|
|
}
|
|
|
|
/* ************ weight paint operator ********** */
|
|
|
|
struct WPaintData {
|
|
ViewContext vc;
|
|
int *indexar;
|
|
int vgroup_active;
|
|
int vgroup_mirror;
|
|
DMCoNo *vertexcosnos;
|
|
float wpimat[3][3];
|
|
|
|
/* variables for auto normalize */
|
|
const char *vgroup_validmap; /* stores if vgroups tie to deforming bones or not */
|
|
const char *lock_flags;
|
|
int defbase_tot;
|
|
};
|
|
|
|
/* ensure we have data on wpaint start, add if needed */
|
|
static int wpaint_ensure_data(bContext *C, wmOperator *op)
|
|
{
|
|
Scene *scene = CTX_data_scene(C);
|
|
Object *ob = CTX_data_active_object(C);
|
|
Mesh *me = BKE_mesh_from_object(ob);
|
|
|
|
if (scene->obedit) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (me == NULL || me->totpoly == 0) {
|
|
return FALSE;
|
|
}
|
|
|
|
/* if nothing was added yet, we make dverts and a vertex deform group */
|
|
if (!me->dvert) {
|
|
ED_vgroup_data_create(&me->id);
|
|
WM_event_add_notifier(C, NC_GEOM | ND_DATA, me);
|
|
}
|
|
|
|
/* this happens on a Bone select, when no vgroup existed yet */
|
|
if (ob->actdef <= 0) {
|
|
Object *modob;
|
|
if ((modob = modifiers_isDeformedByArmature(ob))) {
|
|
Bone *actbone = ((bArmature *)modob->data)->act_bone;
|
|
if (actbone) {
|
|
bPoseChannel *pchan = BKE_pose_channel_find_name(modob->pose, actbone->name);
|
|
|
|
if (pchan) {
|
|
bDeformGroup *dg = defgroup_find_name(ob, pchan->name);
|
|
if (dg == NULL) {
|
|
dg = ED_vgroup_add_name(ob, pchan->name); /* sets actdef */
|
|
}
|
|
else {
|
|
int actdef = 1 + BLI_findindex(&ob->defbase, dg);
|
|
BLI_assert(actdef >= 0);
|
|
ob->actdef = actdef;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (ob->defbase.first == NULL) {
|
|
ED_vgroup_add(ob);
|
|
}
|
|
|
|
/* ensure we don't try paint onto an invalid group */
|
|
if (ob->actdef <= 0) {
|
|
BKE_report(op->reports, RPT_WARNING, "No active vertex group for painting, aborting");
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static int wpaint_stroke_test_start(bContext *C, wmOperator *op, const float UNUSED(mouse[2]))
|
|
{
|
|
Scene *scene = CTX_data_scene(C);
|
|
struct PaintStroke *stroke = op->customdata;
|
|
ToolSettings *ts = scene->toolsettings;
|
|
VPaint *wp = ts->wpaint;
|
|
Object *ob = CTX_data_active_object(C);
|
|
Mesh *me = BKE_mesh_from_object(ob);
|
|
struct WPaintData *wpd;
|
|
|
|
float mat[4][4], imat[4][4];
|
|
|
|
if (wpaint_ensure_data(C, op) == FALSE) {
|
|
return FALSE;
|
|
}
|
|
|
|
{
|
|
/* check if we are attempting to paint onto a locked vertex group,
|
|
* and other options disallow it from doing anything useful */
|
|
bDeformGroup *dg = BLI_findlink(&ob->defbase, (ob->actdef - 1));
|
|
if (dg->flag & DG_LOCK_WEIGHT) {
|
|
BKE_report(op->reports, RPT_WARNING, "Active group is locked, aborting");
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/* ALLOCATIONS! no return after this line */
|
|
/* make mode data storage */
|
|
wpd = MEM_callocN(sizeof(struct WPaintData), "WPaintData");
|
|
paint_stroke_set_mode_data(stroke, wpd);
|
|
view3d_set_viewcontext(C, &wpd->vc);
|
|
|
|
wpd->vgroup_active = ob->actdef - 1;
|
|
wpd->vgroup_mirror = -1;
|
|
|
|
/* set up auto-normalize, and generate map for detecting which
|
|
* vgroups affect deform bones */
|
|
wpd->defbase_tot = BLI_countlist(&ob->defbase);
|
|
wpd->lock_flags = BKE_objdef_lock_flags_get(ob, wpd->defbase_tot);
|
|
if (ts->auto_normalize || ts->multipaint || wpd->lock_flags) {
|
|
wpd->vgroup_validmap = BKE_objdef_validmap_get(ob, wpd->defbase_tot);
|
|
}
|
|
|
|
/* painting on subsurfs should give correct points too, this returns me->totvert amount */
|
|
wpd->vertexcosnos = mesh_get_mapped_verts_nors(scene, ob);
|
|
wpd->indexar = get_indexarray(me);
|
|
copy_wpaint_prev(wp, me->dvert, me->totvert);
|
|
|
|
/* imat for normals */
|
|
mult_m4_m4m4(mat, wpd->vc.rv3d->viewmat, ob->obmat);
|
|
invert_m4_m4(imat, mat);
|
|
copy_m3_m4(wpd->wpimat, imat);
|
|
|
|
/* if mirror painting, find the other group */
|
|
if (me->editflag & ME_EDIT_MIRROR_X) {
|
|
wpd->vgroup_mirror = wpaint_mirror_vgroup_ensure(ob, wpd->vgroup_active);
|
|
}
|
|
|
|
{
|
|
UnifiedPaintSettings *ups = &ts->unified_paint_settings;
|
|
ups->draw_pressure = true;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void wpaint_stroke_update_step(bContext *C, struct PaintStroke *stroke, PointerRNA *itemptr)
|
|
{
|
|
Scene *scene = CTX_data_scene(C);
|
|
ToolSettings *ts = CTX_data_tool_settings(C);
|
|
VPaint *wp = ts->wpaint;
|
|
Brush *brush = paint_brush(&wp->paint);
|
|
struct WPaintData *wpd = paint_stroke_mode_data(stroke);
|
|
ViewContext *vc;
|
|
Object *ob;
|
|
Mesh *me;
|
|
float mat[4][4];
|
|
float paintweight;
|
|
int *indexar;
|
|
float totw;
|
|
unsigned int index, totindex;
|
|
float alpha;
|
|
float mval[2];
|
|
bool use_vert_sel;
|
|
bool use_face_sel;
|
|
bool use_depth;
|
|
|
|
MDeformWeight *(*dw_func)(MDeformVert *, const int) =
|
|
(brush->vertexpaint_tool == PAINT_BLEND_BLUR) ?
|
|
((wp->flag & VP_ONLYVGROUP) ?
|
|
(MDeformWeight *(*)(MDeformVert *, const int))defvert_find_index :
|
|
defvert_verify_index) : NULL;
|
|
|
|
const float pressure = RNA_float_get(itemptr, "pressure");
|
|
const float brush_size_pressure = BKE_brush_size_get(scene, brush) * (BKE_brush_use_size_pressure(scene, brush) ? pressure : 1.0f);
|
|
const float brush_alpha_value = BKE_brush_alpha_get(scene, brush);
|
|
const float brush_alpha_pressure = brush_alpha_value * (BKE_brush_use_alpha_pressure(scene, brush) ? pressure : 1.0f);
|
|
|
|
/* intentionally don't initialize as NULL, make sure we initialize all members below */
|
|
WeightPaintInfo wpi;
|
|
|
|
/* cannot paint if there is no stroke data */
|
|
if (wpd == NULL) {
|
|
/* XXX: force a redraw here, since even though we can't paint,
|
|
* at least view won't freeze until stroke ends */
|
|
ED_region_tag_redraw(CTX_wm_region(C));
|
|
return;
|
|
}
|
|
|
|
vc = &wpd->vc;
|
|
ob = vc->obact;
|
|
me = ob->data;
|
|
indexar = wpd->indexar;
|
|
|
|
view3d_operator_needs_opengl(C);
|
|
ED_view3d_init_mats_rv3d(ob, vc->rv3d);
|
|
|
|
/* load projection matrix */
|
|
mult_m4_m4m4(mat, vc->rv3d->persmat, ob->obmat);
|
|
|
|
RNA_float_get_array(itemptr, "mouse", mval);
|
|
mval[0] -= vc->ar->winrct.xmin;
|
|
mval[1] -= vc->ar->winrct.ymin;
|
|
|
|
|
|
|
|
|
|
/* *** setup WeightPaintInfo - pass onto do_weight_paint_vertex *** */
|
|
wpi.defbase_tot = wpd->defbase_tot;
|
|
wpi.defbase_sel = BKE_objdef_selected_get(ob, wpi.defbase_tot, &wpi.defbase_tot_sel);
|
|
if (wpi.defbase_tot_sel == 0 && ob->actdef > 0) {
|
|
wpi.defbase_tot_sel = 1;
|
|
}
|
|
|
|
wpi.defbase_tot_unsel = wpi.defbase_tot - wpi.defbase_tot_sel;
|
|
wpi.vgroup_active = wpd->vgroup_active;
|
|
wpi.vgroup_mirror = wpd->vgroup_mirror;
|
|
wpi.lock_flags = wpd->lock_flags;
|
|
wpi.vgroup_validmap = wpd->vgroup_validmap;
|
|
wpi.do_flip = RNA_boolean_get(itemptr, "pen_flip");
|
|
wpi.do_multipaint = (ts->multipaint != 0);
|
|
wpi.do_auto_normalize = ((ts->auto_normalize != 0) && (wpi.vgroup_validmap != NULL));
|
|
wpi.brush_alpha_value = brush_alpha_value;
|
|
/* *** done setting up WeightPaintInfo *** */
|
|
|
|
|
|
|
|
swap_m4m4(wpd->vc.rv3d->persmat, mat);
|
|
|
|
use_vert_sel = (me->editflag & ME_EDIT_PAINT_VERT_SEL) != 0;
|
|
use_face_sel = (me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;
|
|
use_depth = (vc->v3d->flag & V3D_ZBUF_SELECT);
|
|
|
|
/* which faces are involved */
|
|
if (use_depth) {
|
|
if (wp->flag & VP_AREA) {
|
|
/* Ugly hack, to avoid drawing vertex index when getting the face index buffer - campbell */
|
|
me->editflag &= ~ME_EDIT_PAINT_VERT_SEL;
|
|
totindex = sample_backbuf_area(vc, indexar, me->totpoly, mval[0], mval[1], brush_size_pressure);
|
|
me->editflag |= use_vert_sel ? ME_EDIT_PAINT_VERT_SEL : 0;
|
|
}
|
|
else {
|
|
indexar[0] = view3d_sample_backbuf(vc, mval[0], mval[1]);
|
|
if (indexar[0]) totindex = 1;
|
|
else totindex = 0;
|
|
}
|
|
|
|
if (use_face_sel && me->mpoly) {
|
|
for (index = 0; index < totindex; index++) {
|
|
if (indexar[index] && indexar[index] <= me->totpoly) {
|
|
MPoly *mpoly = ((MPoly *)me->mpoly) + (indexar[index] - 1);
|
|
|
|
if ((mpoly->flag & ME_FACE_SEL) == 0) {
|
|
indexar[index] = 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
indexar = NULL;
|
|
}
|
|
|
|
/* make sure each vertex gets treated only once */
|
|
/* and calculate filter weight */
|
|
totw = 0.0f;
|
|
if (brush->vertexpaint_tool == PAINT_BLEND_BLUR)
|
|
paintweight = 0.0f;
|
|
else
|
|
paintweight = BKE_brush_weight_get(scene, brush);
|
|
|
|
#define WP_BLUR_ACCUM(v_idx_var) \
|
|
{ \
|
|
const unsigned int vidx = v_idx_var; \
|
|
const float fac = calc_vp_strength_dl(wp, vc, wpd->vertexcosnos[vidx].co, mval, brush_size_pressure); \
|
|
if (fac > 0.0f) { \
|
|
MDeformWeight *dw = dw_func(&me->dvert[vidx], wpi.vgroup_active); \
|
|
paintweight += dw ? (dw->weight * fac) : 0.0f; \
|
|
totw += fac; \
|
|
} \
|
|
} (void)0
|
|
|
|
|
|
if (use_depth) {
|
|
for (index = 0; index < totindex; index++) {
|
|
if (indexar[index] && indexar[index] <= me->totpoly) {
|
|
MPoly *mpoly = me->mpoly + (indexar[index] - 1);
|
|
MLoop *ml = me->mloop + mpoly->loopstart;
|
|
int i;
|
|
|
|
if (use_vert_sel) {
|
|
for (i = 0; i < mpoly->totloop; i++, ml++) {
|
|
me->dvert[ml->v].flag = (me->mvert[ml->v].flag & SELECT);
|
|
}
|
|
}
|
|
else {
|
|
for (i = 0; i < mpoly->totloop; i++, ml++) {
|
|
me->dvert[ml->v].flag = 1;
|
|
}
|
|
}
|
|
|
|
if (brush->vertexpaint_tool == PAINT_BLEND_BLUR) {
|
|
ml = me->mloop + mpoly->loopstart;
|
|
for (i = 0; i < mpoly->totloop; i++, ml++) {
|
|
WP_BLUR_ACCUM(ml->v);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
const unsigned int totvert = me->totvert;
|
|
unsigned int i;
|
|
|
|
/* in the case of face selection we need to flush */
|
|
if (use_vert_sel || use_face_sel) {
|
|
for (i = 0; i < totvert; i++) {
|
|
me->dvert[i].flag = me->mvert[i].flag & SELECT;
|
|
}
|
|
}
|
|
else {
|
|
for (i = 0; i < totvert; i++) {
|
|
me->dvert[i].flag = SELECT;
|
|
}
|
|
}
|
|
|
|
if (brush->vertexpaint_tool == PAINT_BLEND_BLUR) {
|
|
for (i = 0; i < totvert; i++) {
|
|
WP_BLUR_ACCUM(i);
|
|
}
|
|
}
|
|
}
|
|
|
|
#undef WP_BLUR_ACCUM
|
|
|
|
|
|
if (brush->vertexpaint_tool == PAINT_BLEND_BLUR) {
|
|
paintweight /= totw;
|
|
}
|
|
|
|
#define WP_PAINT(v_idx_var) \
|
|
{ \
|
|
unsigned int vidx = v_idx_var; \
|
|
if (me->dvert[vidx].flag) { \
|
|
alpha = calc_vp_alpha_dl(wp, vc, wpd->wpimat, &wpd->vertexcosnos[vidx], \
|
|
mval, brush_size_pressure, brush_alpha_pressure); \
|
|
if (alpha) { \
|
|
do_weight_paint_vertex(wp, ob, &wpi, vidx, alpha, paintweight); \
|
|
} \
|
|
me->dvert[vidx].flag = 0; \
|
|
} \
|
|
} (void)0
|
|
|
|
if (use_depth) {
|
|
for (index = 0; index < totindex; index++) {
|
|
|
|
if (indexar[index] && indexar[index] <= me->totpoly) {
|
|
MPoly *mpoly = me->mpoly + (indexar[index] - 1);
|
|
MLoop *ml = me->mloop + mpoly->loopstart;
|
|
int i;
|
|
|
|
for (i = 0; i < mpoly->totloop; i++, ml++) {
|
|
WP_PAINT(ml->v);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
const unsigned int totvert = me->totvert;
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < totvert; i++) {
|
|
WP_PAINT(i);
|
|
}
|
|
}
|
|
#undef WP_PAINT
|
|
|
|
|
|
/* *** free wpi members */
|
|
MEM_freeN((void *)wpi.defbase_sel);
|
|
/* *** done freeing wpi members */
|
|
|
|
|
|
swap_m4m4(vc->rv3d->persmat, mat);
|
|
|
|
{
|
|
UnifiedPaintSettings *ups = &ts->unified_paint_settings;
|
|
ups->pressure_value = pressure;
|
|
}
|
|
|
|
DAG_id_tag_update(ob->data, 0);
|
|
ED_region_tag_redraw(vc->ar);
|
|
}
|
|
|
|
static void wpaint_stroke_done(const bContext *C, struct PaintStroke *stroke)
|
|
{
|
|
ToolSettings *ts = CTX_data_tool_settings(C);
|
|
Object *ob = CTX_data_active_object(C);
|
|
struct WPaintData *wpd = paint_stroke_mode_data(stroke);
|
|
|
|
if (wpd) {
|
|
if (wpd->vertexcosnos)
|
|
MEM_freeN(wpd->vertexcosnos);
|
|
MEM_freeN(wpd->indexar);
|
|
|
|
if (wpd->vgroup_validmap)
|
|
MEM_freeN((void *)wpd->vgroup_validmap);
|
|
if (wpd->lock_flags)
|
|
MEM_freeN((void *)wpd->lock_flags);
|
|
|
|
MEM_freeN(wpd);
|
|
}
|
|
|
|
/* frees prev buffer */
|
|
copy_wpaint_prev(ts->wpaint, NULL, 0);
|
|
|
|
/* and particles too */
|
|
if (ob->particlesystem.first) {
|
|
ParticleSystem *psys;
|
|
int i;
|
|
|
|
for (psys = ob->particlesystem.first; psys; psys = psys->next) {
|
|
for (i = 0; i < PSYS_TOT_VG; i++) {
|
|
if (psys->vgroup[i] == ob->actdef) {
|
|
psys->recalc |= PSYS_RECALC_RESET;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
{
|
|
UnifiedPaintSettings *ups = &ts->unified_paint_settings;
|
|
ups->draw_pressure = false;
|
|
}
|
|
|
|
DAG_id_tag_update(ob->data, 0);
|
|
|
|
WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob);
|
|
}
|
|
|
|
|
|
static int wpaint_invoke(bContext *C, wmOperator *op, wmEvent *event)
|
|
{
|
|
int retval;
|
|
|
|
op->customdata = paint_stroke_new(C, NULL, wpaint_stroke_test_start,
|
|
wpaint_stroke_update_step,
|
|
wpaint_stroke_done, event->type);
|
|
|
|
/* add modal handler */
|
|
WM_event_add_modal_handler(C, op);
|
|
|
|
retval = op->type->modal(C, op, event);
|
|
OPERATOR_RETVAL_CHECK(retval);
|
|
BLI_assert(retval == OPERATOR_RUNNING_MODAL);
|
|
|
|
return OPERATOR_RUNNING_MODAL;
|
|
}
|
|
|
|
static int wpaint_cancel(bContext *C, wmOperator *op)
|
|
{
|
|
paint_stroke_cancel(C, op);
|
|
|
|
return OPERATOR_CANCELLED;
|
|
}
|
|
|
|
void PAINT_OT_weight_paint(wmOperatorType *ot)
|
|
{
|
|
|
|
/* identifiers */
|
|
ot->name = "Weight Paint";
|
|
ot->idname = "PAINT_OT_weight_paint";
|
|
ot->description = "Paint a stroke in the current vertex group's weights";
|
|
|
|
/* api callbacks */
|
|
ot->invoke = wpaint_invoke;
|
|
ot->modal = paint_stroke_modal;
|
|
/* ot->exec = vpaint_exec; <-- needs stroke property */
|
|
ot->poll = weight_paint_poll;
|
|
ot->cancel = wpaint_cancel;
|
|
|
|
/* flags */
|
|
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_BLOCKING;
|
|
|
|
RNA_def_collection_runtime(ot->srna, "stroke", &RNA_OperatorStrokeElement, "Stroke", "");
|
|
}
|
|
|
|
static int weight_paint_set_exec(bContext *C, wmOperator *op)
|
|
{
|
|
struct Scene *scene = CTX_data_scene(C);
|
|
Object *obact = CTX_data_active_object(C);
|
|
ToolSettings *ts = CTX_data_tool_settings(C);
|
|
Brush *brush = paint_brush(&ts->wpaint->paint);
|
|
float vgroup_weight = BKE_brush_weight_get(scene, brush);
|
|
|
|
if (wpaint_ensure_data(C, op) == FALSE) {
|
|
return OPERATOR_CANCELLED;
|
|
}
|
|
|
|
wpaint_fill(scene->toolsettings->wpaint, obact, vgroup_weight);
|
|
ED_region_tag_redraw(CTX_wm_region(C)); /* XXX - should redraw all 3D views */
|
|
return OPERATOR_FINISHED;
|
|
}
|
|
|
|
void PAINT_OT_weight_set(wmOperatorType *ot)
|
|
{
|
|
/* identifiers */
|
|
ot->name = "Set Weight";
|
|
ot->idname = "PAINT_OT_weight_set";
|
|
ot->description = "Fill the active vertex group with the current paint weight";
|
|
|
|
/* api callbacks */
|
|
ot->exec = weight_paint_set_exec;
|
|
ot->poll = mask_paint_poll; /* it was facemask_paint_poll */
|
|
|
|
/* flags */
|
|
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
|
|
}
|
|
|
|
/* ************ set / clear vertex paint mode ********** */
|
|
|
|
|
|
static int set_vpaint(bContext *C, wmOperator *op) /* toggle */
|
|
{
|
|
Object *ob = CTX_data_active_object(C);
|
|
Scene *scene = CTX_data_scene(C);
|
|
VPaint *vp = scene->toolsettings->vpaint;
|
|
Mesh *me;
|
|
|
|
me = BKE_mesh_from_object(ob);
|
|
|
|
if (me == NULL || BKE_object_obdata_is_libdata(ob)) {
|
|
ob->mode &= ~OB_MODE_VERTEX_PAINT;
|
|
return OPERATOR_PASS_THROUGH;
|
|
}
|
|
|
|
if (me && me->mloopcol == NULL) {
|
|
make_vertexcol(ob);
|
|
}
|
|
|
|
/* toggle: end vpaint */
|
|
if (ob->mode & OB_MODE_VERTEX_PAINT) {
|
|
|
|
ob->mode &= ~OB_MODE_VERTEX_PAINT;
|
|
|
|
if (me->editflag & ME_EDIT_PAINT_FACE_SEL) {
|
|
BKE_mesh_flush_select_from_polys(me);
|
|
}
|
|
}
|
|
else {
|
|
ob->mode |= OB_MODE_VERTEX_PAINT;
|
|
/* Turn off weight painting */
|
|
if (ob->mode & OB_MODE_WEIGHT_PAINT)
|
|
set_wpaint(C, op);
|
|
|
|
if (vp == NULL)
|
|
vp = scene->toolsettings->vpaint = new_vpaint(0);
|
|
|
|
paint_cursor_start(C, vertex_paint_poll);
|
|
|
|
BKE_paint_init(&vp->paint, PAINT_CURSOR_VERTEX_PAINT);
|
|
}
|
|
|
|
/* update modifier stack for mapping requirements */
|
|
DAG_id_tag_update(&me->id, 0);
|
|
|
|
WM_event_add_notifier(C, NC_SCENE | ND_MODE, scene);
|
|
|
|
return OPERATOR_FINISHED;
|
|
}
|
|
|
|
void PAINT_OT_vertex_paint_toggle(wmOperatorType *ot)
|
|
{
|
|
|
|
/* identifiers */
|
|
ot->name = "Vertex Paint Mode";
|
|
ot->idname = "PAINT_OT_vertex_paint_toggle";
|
|
ot->description = "Toggle the vertex paint mode in 3D view";
|
|
|
|
/* api callbacks */
|
|
ot->exec = set_vpaint;
|
|
ot->poll = paint_poll_test;
|
|
|
|
/* flags */
|
|
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
|
|
}
|
|
|
|
|
|
|
|
/* ********************** vertex paint operator ******************* */
|
|
|
|
/* Implementation notes:
|
|
*
|
|
* Operator->invoke()
|
|
* - validate context (add mcol)
|
|
* - create customdata storage
|
|
* - call paint once (mouse click)
|
|
* - add modal handler
|
|
*
|
|
* Operator->modal()
|
|
* - for every mousemove, apply vertex paint
|
|
* - exit on mouse release, free customdata
|
|
* (return OPERATOR_FINISHED also removes handler and operator)
|
|
*
|
|
* For future:
|
|
* - implement a stroke event (or mousemove with past positons)
|
|
* - revise whether op->customdata should be added in object, in set_vpaint
|
|
*/
|
|
|
|
typedef struct PolyFaceMap {
|
|
struct PolyFaceMap *next, *prev;
|
|
int facenr;
|
|
} PolyFaceMap;
|
|
|
|
typedef struct VPaintData {
|
|
ViewContext vc;
|
|
unsigned int paintcol;
|
|
int *indexar;
|
|
DMCoNo *vertexcosnos;
|
|
float vpimat[3][3];
|
|
|
|
/* modify 'me->mcol' directly, since the derived mesh is drawing from this array,
|
|
* otherwise we need to refresh the modifier stack */
|
|
int use_fast_update;
|
|
|
|
/* mpoly -> mface mapping */
|
|
MemArena *polyfacemap_arena;
|
|
ListBase *polyfacemap;
|
|
} VPaintData;
|
|
|
|
static void vpaint_build_poly_facemap(struct VPaintData *vd, Mesh *me)
|
|
{
|
|
MFace *mf;
|
|
PolyFaceMap *e;
|
|
int *origIndex;
|
|
int i;
|
|
|
|
vd->polyfacemap_arena = BLI_memarena_new(1 << 13, "vpaint tmp");
|
|
BLI_memarena_use_calloc(vd->polyfacemap_arena);
|
|
|
|
vd->polyfacemap = BLI_memarena_alloc(vd->polyfacemap_arena, sizeof(ListBase) * me->totpoly);
|
|
|
|
origIndex = CustomData_get_layer(&me->fdata, CD_ORIGINDEX);
|
|
mf = me->mface;
|
|
|
|
if (!origIndex)
|
|
return;
|
|
|
|
for (i = 0; i < me->totface; i++, mf++, origIndex++) {
|
|
if (*origIndex == ORIGINDEX_NONE)
|
|
continue;
|
|
|
|
e = BLI_memarena_alloc(vd->polyfacemap_arena, sizeof(PolyFaceMap));
|
|
e->facenr = i;
|
|
|
|
BLI_addtail(&vd->polyfacemap[*origIndex], e);
|
|
}
|
|
}
|
|
|
|
static int vpaint_stroke_test_start(bContext *C, struct wmOperator *op, const float UNUSED(mouse[2]))
|
|
{
|
|
ToolSettings *ts = CTX_data_tool_settings(C);
|
|
struct PaintStroke *stroke = op->customdata;
|
|
VPaint *vp = ts->vpaint;
|
|
struct VPaintData *vpd;
|
|
Object *ob = CTX_data_active_object(C);
|
|
Mesh *me;
|
|
float mat[4][4], imat[4][4];
|
|
|
|
/* context checks could be a poll() */
|
|
me = BKE_mesh_from_object(ob);
|
|
if (me == NULL || me->totpoly == 0)
|
|
return OPERATOR_PASS_THROUGH;
|
|
|
|
if (me->mloopcol == NULL)
|
|
make_vertexcol(ob);
|
|
if (me->mloopcol == NULL)
|
|
return OPERATOR_CANCELLED;
|
|
|
|
/* Update tessface data if needed
|
|
* Added here too because e.g. switching to/from edit mode would remove tessface data,
|
|
* yet "fast_update" could still be used! */
|
|
update_tessface_data(ob, me);
|
|
|
|
/* make mode data storage */
|
|
vpd = MEM_callocN(sizeof(struct VPaintData), "VPaintData");
|
|
paint_stroke_set_mode_data(stroke, vpd);
|
|
view3d_set_viewcontext(C, &vpd->vc);
|
|
|
|
vpd->vertexcosnos = mesh_get_mapped_verts_nors(vpd->vc.scene, ob);
|
|
vpd->indexar = get_indexarray(me);
|
|
vpd->paintcol = vpaint_get_current_col(vp);
|
|
|
|
|
|
/* are we painting onto a modified mesh?,
|
|
* if not we can skip face map trickyness */
|
|
if (vertex_paint_use_fast_update_check(ob)) {
|
|
vpaint_build_poly_facemap(vpd, me);
|
|
vpd->use_fast_update = TRUE;
|
|
/* printf("Fast update!\n");*/
|
|
}
|
|
else {
|
|
vpd->use_fast_update = FALSE;
|
|
/* printf("No fast update!\n");*/
|
|
}
|
|
|
|
/* for filtering */
|
|
copy_vpaint_prev(vp, (unsigned int *)me->mloopcol, me->totloop);
|
|
|
|
/* some old cruft to sort out later */
|
|
mult_m4_m4m4(mat, vpd->vc.rv3d->viewmat, ob->obmat);
|
|
invert_m4_m4(imat, mat);
|
|
copy_m3_m4(vpd->vpimat, imat);
|
|
|
|
{
|
|
UnifiedPaintSettings *ups = &ts->unified_paint_settings;
|
|
ups->draw_pressure = true;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void vpaint_paint_poly(VPaint *vp, VPaintData *vpd, Mesh *me,
|
|
const unsigned int index, const float mval[2],
|
|
const float brush_size_pressure, const float brush_alpha_pressure)
|
|
{
|
|
ViewContext *vc = &vpd->vc;
|
|
Brush *brush = paint_brush(&vp->paint);
|
|
MPoly *mpoly = &me->mpoly[index];
|
|
MFace *mf;
|
|
MCol *mc;
|
|
MLoop *ml;
|
|
MLoopCol *mlc;
|
|
PolyFaceMap *e;
|
|
unsigned int *lcol = ((unsigned int *)me->mloopcol) + mpoly->loopstart;
|
|
unsigned int *lcolorig = ((unsigned int *)vp->vpaint_prev) + mpoly->loopstart;
|
|
float alpha;
|
|
int i, j;
|
|
|
|
int brush_alpha_pressure_i = (int)(brush_alpha_pressure * 255.0f);
|
|
|
|
if (brush->vertexpaint_tool == PAINT_BLEND_BLUR) {
|
|
unsigned int blend[4] = {0};
|
|
unsigned int tcol;
|
|
char *col;
|
|
|
|
for (j = 0; j < mpoly->totloop; j++) {
|
|
col = (char *)(lcol + j);
|
|
blend[0] += col[0];
|
|
blend[1] += col[1];
|
|
blend[2] += col[2];
|
|
blend[3] += col[3];
|
|
}
|
|
|
|
blend[0] /= mpoly->totloop;
|
|
blend[1] /= mpoly->totloop;
|
|
blend[2] /= mpoly->totloop;
|
|
blend[3] /= mpoly->totloop;
|
|
col = (char *)&tcol;
|
|
col[0] = blend[0];
|
|
col[1] = blend[1];
|
|
col[2] = blend[2];
|
|
col[3] = blend[3];
|
|
|
|
vpd->paintcol = *((unsigned int *)col);
|
|
}
|
|
|
|
ml = me->mloop + mpoly->loopstart;
|
|
for (i = 0; i < mpoly->totloop; i++, ml++) {
|
|
alpha = calc_vp_alpha_dl(vp, vc, vpd->vpimat,
|
|
&vpd->vertexcosnos[ml->v], mval,
|
|
brush_size_pressure, brush_alpha_pressure);
|
|
if (alpha > 0.0f) {
|
|
const int alpha_i = (int)(alpha * 255.0f);
|
|
lcol[i] = vpaint_blend(vp, lcol[i], lcolorig[i], vpd->paintcol, alpha_i, brush_alpha_pressure_i);
|
|
}
|
|
}
|
|
|
|
if (vpd->use_fast_update) {
|
|
/* update vertex colors for tessellations incrementally,
|
|
* rather then regenerating the tessellation altogether */
|
|
for (e = vpd->polyfacemap[index].first; e; e = e->next) {
|
|
mf = &me->mface[e->facenr];
|
|
mc = &me->mcol[e->facenr * 4];
|
|
|
|
ml = me->mloop + mpoly->loopstart;
|
|
mlc = me->mloopcol + mpoly->loopstart;
|
|
for (j = 0; j < mpoly->totloop; j++, ml++, mlc++) {
|
|
if (ml->v == mf->v1) {
|
|
MESH_MLOOPCOL_TO_MCOL(mlc, mc + 0);
|
|
}
|
|
else if (ml->v == mf->v2) {
|
|
MESH_MLOOPCOL_TO_MCOL(mlc, mc + 1);
|
|
}
|
|
else if (ml->v == mf->v3) {
|
|
MESH_MLOOPCOL_TO_MCOL(mlc, mc + 2);
|
|
}
|
|
else if (mf->v4 && ml->v == mf->v4) {
|
|
MESH_MLOOPCOL_TO_MCOL(mlc, mc + 3);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
static void vpaint_stroke_update_step(bContext *C, struct PaintStroke *stroke, PointerRNA *itemptr)
|
|
{
|
|
Scene *scene = CTX_data_scene(C);
|
|
ToolSettings *ts = CTX_data_tool_settings(C);
|
|
struct VPaintData *vpd = paint_stroke_mode_data(stroke);
|
|
VPaint *vp = ts->vpaint;
|
|
Brush *brush = paint_brush(&vp->paint);
|
|
ViewContext *vc = &vpd->vc;
|
|
Object *ob = vc->obact;
|
|
Mesh *me = ob->data;
|
|
float mat[4][4];
|
|
int *indexar = vpd->indexar;
|
|
int totindex, index;
|
|
float mval[2];
|
|
|
|
const float pressure = RNA_float_get(itemptr, "pressure");
|
|
const float brush_size_pressure = BKE_brush_size_get(scene, brush) * (BKE_brush_use_size_pressure(scene, brush) ? pressure : 1.0f);
|
|
const float brush_alpha_pressure = BKE_brush_alpha_get(scene, brush) * (BKE_brush_use_alpha_pressure(scene, brush) ? pressure : 1.0f);
|
|
|
|
RNA_float_get_array(itemptr, "mouse", mval);
|
|
|
|
view3d_operator_needs_opengl(C);
|
|
ED_view3d_init_mats_rv3d(ob, vc->rv3d);
|
|
|
|
/* load projection matrix */
|
|
mult_m4_m4m4(mat, vc->rv3d->persmat, ob->obmat);
|
|
|
|
mval[0] -= vc->ar->winrct.xmin;
|
|
mval[1] -= vc->ar->winrct.ymin;
|
|
|
|
|
|
/* which faces are involved */
|
|
if (vp->flag & VP_AREA) {
|
|
totindex = sample_backbuf_area(vc, indexar, me->totpoly, mval[0], mval[1], brush_size_pressure);
|
|
}
|
|
else {
|
|
indexar[0] = view3d_sample_backbuf(vc, mval[0], mval[1]);
|
|
if (indexar[0]) totindex = 1;
|
|
else totindex = 0;
|
|
}
|
|
|
|
if ((me->editflag & ME_EDIT_PAINT_FACE_SEL) && me->mpoly) {
|
|
for (index = 0; index < totindex; index++) {
|
|
if (indexar[index] && indexar[index] <= me->totpoly) {
|
|
MPoly *mpoly = ((MPoly *)me->mpoly) + (indexar[index] - 1);
|
|
|
|
if ((mpoly->flag & ME_FACE_SEL) == 0)
|
|
indexar[index] = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
swap_m4m4(vc->rv3d->persmat, mat);
|
|
|
|
for (index = 0; index < totindex; index++) {
|
|
if (indexar[index] && indexar[index] <= me->totpoly) {
|
|
vpaint_paint_poly(vp, vpd, me, indexar[index] - 1, mval, brush_size_pressure, brush_alpha_pressure);
|
|
}
|
|
}
|
|
|
|
swap_m4m4(vc->rv3d->persmat, mat);
|
|
|
|
/* was disabled because it is slow, but necessary for blur */
|
|
if (brush->vertexpaint_tool == PAINT_BLEND_BLUR) {
|
|
int do_tessface = vpd->use_fast_update;
|
|
do_shared_vertexcol(me, do_tessface);
|
|
}
|
|
|
|
{
|
|
UnifiedPaintSettings *ups = &ts->unified_paint_settings;
|
|
ups->pressure_value = pressure;
|
|
}
|
|
|
|
ED_region_tag_redraw(vc->ar);
|
|
|
|
if (vpd->use_fast_update == FALSE) {
|
|
/* recalculate modifier stack to get new colors, slow,
|
|
* avoid this if we can! */
|
|
DAG_id_tag_update(ob->data, 0);
|
|
}
|
|
else if (!GPU_buffer_legacy(ob->derivedFinal)) {
|
|
/* If using new VBO drawing, mark mcol as dirty to force colors gpu buffer refresh! */
|
|
ob->derivedFinal->dirty |= DM_DIRTY_MCOL_UPDATE_DRAW;
|
|
}
|
|
}
|
|
|
|
static void vpaint_stroke_done(const bContext *C, struct PaintStroke *stroke)
|
|
{
|
|
ToolSettings *ts = CTX_data_tool_settings(C);
|
|
struct VPaintData *vpd = paint_stroke_mode_data(stroke);
|
|
ViewContext *vc = &vpd->vc;
|
|
Object *ob = vc->obact;
|
|
|
|
if (vpd->vertexcosnos)
|
|
MEM_freeN(vpd->vertexcosnos);
|
|
MEM_freeN(vpd->indexar);
|
|
|
|
/* frees prev buffer */
|
|
copy_vpaint_prev(ts->vpaint, NULL, 0);
|
|
|
|
if (vpd->polyfacemap_arena) {
|
|
BLI_memarena_free(vpd->polyfacemap_arena);
|
|
}
|
|
|
|
{
|
|
UnifiedPaintSettings *ups = &ts->unified_paint_settings;
|
|
ups->draw_pressure = false;
|
|
}
|
|
|
|
WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob);
|
|
|
|
MEM_freeN(vpd);
|
|
}
|
|
|
|
static int vpaint_invoke(bContext *C, wmOperator *op, wmEvent *event)
|
|
{
|
|
int retval;
|
|
|
|
op->customdata = paint_stroke_new(C, NULL, vpaint_stroke_test_start,
|
|
vpaint_stroke_update_step,
|
|
vpaint_stroke_done, event->type);
|
|
|
|
/* add modal handler */
|
|
WM_event_add_modal_handler(C, op);
|
|
|
|
retval = op->type->modal(C, op, event);
|
|
OPERATOR_RETVAL_CHECK(retval);
|
|
BLI_assert(retval == OPERATOR_RUNNING_MODAL);
|
|
|
|
return OPERATOR_RUNNING_MODAL;
|
|
}
|
|
|
|
static int vpaint_cancel(bContext *C, wmOperator *op)
|
|
{
|
|
paint_stroke_cancel(C, op);
|
|
|
|
return OPERATOR_CANCELLED;
|
|
}
|
|
|
|
void PAINT_OT_vertex_paint(wmOperatorType *ot)
|
|
{
|
|
/* identifiers */
|
|
ot->name = "Vertex Paint";
|
|
ot->idname = "PAINT_OT_vertex_paint";
|
|
ot->description = "Paint a stroke in the active vertex color layer";
|
|
|
|
/* api callbacks */
|
|
ot->invoke = vpaint_invoke;
|
|
ot->modal = paint_stroke_modal;
|
|
/* ot->exec = vpaint_exec; <-- needs stroke property */
|
|
ot->poll = vertex_paint_poll;
|
|
ot->cancel = vpaint_cancel;
|
|
|
|
/* flags */
|
|
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_BLOCKING;
|
|
|
|
RNA_def_collection_runtime(ot->srna, "stroke", &RNA_OperatorStrokeElement, "Stroke", "");
|
|
}
|
|
|
|
/* ********************** weight from bones operator ******************* */
|
|
|
|
static int weight_from_bones_poll(bContext *C)
|
|
{
|
|
Object *ob = CTX_data_active_object(C);
|
|
|
|
return (ob && (ob->mode & OB_MODE_WEIGHT_PAINT) && modifiers_isDeformedByArmature(ob));
|
|
}
|
|
|
|
static int weight_from_bones_exec(bContext *C, wmOperator *op)
|
|
{
|
|
Scene *scene = CTX_data_scene(C);
|
|
Object *ob = CTX_data_active_object(C);
|
|
Object *armob = modifiers_isDeformedByArmature(ob);
|
|
Mesh *me = ob->data;
|
|
int type = RNA_enum_get(op->ptr, "type");
|
|
|
|
create_vgroups_from_armature(op->reports, scene, ob, armob, type, (me->editflag & ME_EDIT_MIRROR_X));
|
|
|
|
DAG_id_tag_update(&me->id, 0);
|
|
WM_event_add_notifier(C, NC_GEOM | ND_DATA, me);
|
|
|
|
return OPERATOR_FINISHED;
|
|
}
|
|
|
|
void PAINT_OT_weight_from_bones(wmOperatorType *ot)
|
|
{
|
|
static EnumPropertyItem type_items[] = {
|
|
{ARM_GROUPS_AUTO, "AUTOMATIC", 0, "Automatic", "Automatic weights from bones"},
|
|
{ARM_GROUPS_ENVELOPE, "ENVELOPES", 0, "From Envelopes", "Weights from envelopes with user defined radius"},
|
|
{0, NULL, 0, NULL, NULL}};
|
|
|
|
/* identifiers */
|
|
ot->name = "Weight from Bones";
|
|
ot->idname = "PAINT_OT_weight_from_bones";
|
|
ot->description = "Set the weights of the groups matching the attached armature's selected bones, "
|
|
"using the distance between the vertices and the bones";
|
|
|
|
/* api callbacks */
|
|
ot->exec = weight_from_bones_exec;
|
|
ot->invoke = WM_menu_invoke;
|
|
ot->poll = weight_from_bones_poll;
|
|
|
|
/* flags */
|
|
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
|
|
|
|
/* properties */
|
|
ot->prop = RNA_def_enum(ot->srna, "type", type_items, 0, "Type", "Method to use for assigning weights");
|
|
}
|
|
|
|
/* *** VGroups Gradient *** */
|
|
typedef struct DMGradient_vertStore {
|
|
float sco[2];
|
|
float weight_orig;
|
|
enum {
|
|
VGRAD_STORE_NOP = 0,
|
|
VGRAD_STORE_DW_EXIST = (1 << 0)
|
|
} flag;
|
|
} DMGradient_vertStore;
|
|
|
|
typedef struct DMGradient_userData {
|
|
struct ARegion *ar;
|
|
Scene *scene;
|
|
Mesh *me;
|
|
Brush *brush;
|
|
const float *sco_start; /* [2] */
|
|
const float *sco_end; /* [2] */
|
|
float sco_line_div; /* store (1.0f / len_v2v2(sco_start, sco_end)) */
|
|
int def_nr;
|
|
short is_init;
|
|
DMGradient_vertStore *vert_cache;
|
|
|
|
/* options */
|
|
short use_select;
|
|
short type;
|
|
float weightpaint;
|
|
} DMGradient_userData;
|
|
|
|
static void gradientVert__mapFunc(void *userData, int index, const float co[3],
|
|
const float UNUSED(no_f[3]), const short UNUSED(no_s[3]))
|
|
{
|
|
DMGradient_userData *grad_data = userData;
|
|
Mesh *me = grad_data->me;
|
|
|
|
if (grad_data->use_select == FALSE || (me->mvert[index].flag & SELECT)) {
|
|
DMGradient_vertStore *vs = &grad_data->vert_cache[index];
|
|
|
|
/* run first pass only, could be split into its own mapFunc
|
|
* the screen coords of the verts need to be cached because
|
|
* updating the mesh may move them about (entering feedback loop) */
|
|
if (grad_data->is_init) {
|
|
if (ED_view3d_project_float_object(grad_data->ar,
|
|
co, vs->sco,
|
|
V3D_PROJ_TEST_CLIP_BB | V3D_PROJ_TEST_CLIP_NEAR) == V3D_PROJ_RET_OK)
|
|
{
|
|
/* ok */
|
|
MDeformVert *dv = &me->dvert[index];
|
|
MDeformWeight *dw;
|
|
dw = defvert_find_index(dv, grad_data->def_nr);
|
|
if (dw) {
|
|
vs->weight_orig = dw->weight;
|
|
vs->flag = VGRAD_STORE_DW_EXIST;
|
|
}
|
|
else {
|
|
vs->weight_orig = 0.0f;
|
|
vs->flag = VGRAD_STORE_NOP;
|
|
}
|
|
}
|
|
else {
|
|
/* no go */
|
|
copy_v2_fl(vs->sco, FLT_MAX);
|
|
}
|
|
}
|
|
/* end init */
|
|
|
|
if (vs->sco[0] != FLT_MAX) {
|
|
float alpha;
|
|
|
|
if (grad_data->type == WPAINT_GRADIENT_TYPE_LINEAR) {
|
|
alpha = line_point_factor_v2(vs->sco, grad_data->sco_start, grad_data->sco_end);
|
|
}
|
|
else {
|
|
BLI_assert(grad_data->type == WPAINT_GRADIENT_TYPE_RADIAL);
|
|
alpha = len_v2v2(grad_data->sco_start, vs->sco) * grad_data->sco_line_div;
|
|
}
|
|
/* no need to clamp 'alpha' yet */
|
|
|
|
/* adjust weight */
|
|
alpha = BKE_brush_curve_strength_clamp(grad_data->brush, alpha, 1.0f);
|
|
|
|
if (alpha != 0.0f) {
|
|
MDeformVert *dv = &me->dvert[index];
|
|
MDeformWeight *dw = defvert_verify_index(dv, grad_data->def_nr);
|
|
// dw->weight = alpha; // testing
|
|
int tool = grad_data->brush->vertexpaint_tool;
|
|
float testw;
|
|
|
|
/* init if we just added */
|
|
testw = wpaint_blend_tool(tool, vs->weight_orig, grad_data->weightpaint, alpha * grad_data->brush->alpha);
|
|
CLAMP(testw, 0.0f, 1.0f);
|
|
dw->weight = testw;
|
|
}
|
|
else {
|
|
MDeformVert *dv = &me->dvert[index];
|
|
if (vs->flag & VGRAD_STORE_DW_EXIST) {
|
|
/* normally we NULL check, but in this case we know it exists */
|
|
MDeformWeight *dw = defvert_find_index(dv, grad_data->def_nr);
|
|
dw->weight = vs->weight_orig;
|
|
}
|
|
else {
|
|
/* wasn't originally existing, remove */
|
|
MDeformWeight *dw = defvert_find_index(dv, grad_data->def_nr);
|
|
if (dw) {
|
|
defvert_remove_group(dv, dw);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static int paint_weight_gradient_modal(bContext *C, wmOperator *op, wmEvent *event)
|
|
{
|
|
int ret = WM_gesture_straightline_modal(C, op, event);
|
|
|
|
if (ret & OPERATOR_RUNNING_MODAL) {
|
|
if (event->type == LEFTMOUSE && event->val == KM_RELEASE) { /* XXX, hardcoded */
|
|
/* generally crap! redo! */
|
|
WM_gesture_straightline_cancel(C, op);
|
|
ret &= ~OPERATOR_RUNNING_MODAL;
|
|
ret |= OPERATOR_FINISHED;
|
|
}
|
|
}
|
|
|
|
if (ret & OPERATOR_CANCELLED) {
|
|
ToolSettings *ts = CTX_data_tool_settings(C);
|
|
VPaint *wp = ts->wpaint;
|
|
Object *ob = CTX_data_active_object(C);
|
|
Mesh *me = ob->data;
|
|
BKE_defvert_array_copy(me->dvert, wp->wpaint_prev, me->totvert);
|
|
free_wpaint_prev(wp);
|
|
|
|
DAG_id_tag_update(&ob->id, OB_RECALC_DATA);
|
|
WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob);
|
|
}
|
|
else if (ret & OPERATOR_FINISHED) {
|
|
ToolSettings *ts = CTX_data_tool_settings(C);
|
|
VPaint *wp = ts->wpaint;
|
|
free_wpaint_prev(wp);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int paint_weight_gradient_exec(bContext *C, wmOperator *op)
|
|
{
|
|
wmGesture *gesture = op->customdata;
|
|
struct ARegion *ar = CTX_wm_region(C);
|
|
Scene *scene = CTX_data_scene(C);
|
|
Object *ob = CTX_data_active_object(C);
|
|
Mesh *me = ob->data;
|
|
int x_start = RNA_int_get(op->ptr, "xstart");
|
|
int y_start = RNA_int_get(op->ptr, "ystart");
|
|
int x_end = RNA_int_get(op->ptr, "xend");
|
|
int y_end = RNA_int_get(op->ptr, "yend");
|
|
float sco_start[2] = {x_start, y_start};
|
|
float sco_end[2] = {x_end, y_end};
|
|
|
|
DerivedMesh *dm = mesh_get_derived_final(scene, ob, scene->customdata_mask);
|
|
|
|
DMGradient_userData data = {0};
|
|
|
|
if (gesture->userdata == NULL) {
|
|
VPaint *wp = scene->toolsettings->wpaint;
|
|
|
|
gesture->userdata = MEM_mallocN(sizeof(DMGradient_vertStore) * me->totvert, __func__);
|
|
data.is_init = TRUE;
|
|
|
|
copy_wpaint_prev(wp, me->dvert, me->totvert);
|
|
|
|
/* on init only, convert face -> vert sel */
|
|
if (me->editflag & ME_EDIT_PAINT_FACE_SEL) {
|
|
BKE_mesh_flush_select_from_polys(me);
|
|
}
|
|
|
|
}
|
|
|
|
data.ar = ar;
|
|
data.scene = scene;
|
|
data.me = ob->data;
|
|
data.sco_start = sco_start;
|
|
data.sco_end = sco_end;
|
|
data.sco_line_div = 1.0f / len_v2v2(sco_start, sco_end);
|
|
data.def_nr = ob->actdef - 1;
|
|
data.use_select = (me->editflag & (ME_EDIT_PAINT_FACE_SEL | ME_EDIT_PAINT_VERT_SEL));
|
|
data.vert_cache = gesture->userdata;
|
|
data.type = RNA_enum_get(op->ptr, "type");
|
|
|
|
{
|
|
ToolSettings *ts = CTX_data_tool_settings(C);
|
|
VPaint *wp = ts->wpaint;
|
|
struct Brush *brush = paint_brush(&wp->paint);
|
|
data.brush = brush;
|
|
data.weightpaint = BKE_brush_weight_get(scene, brush);
|
|
}
|
|
|
|
dm->foreachMappedVert(dm, gradientVert__mapFunc, &data);
|
|
|
|
DAG_id_tag_update(&ob->id, OB_RECALC_DATA);
|
|
WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob);
|
|
|
|
return OPERATOR_FINISHED;
|
|
}
|
|
|
|
static int paint_weight_gradient_invoke(bContext *C, wmOperator *op, wmEvent *event)
|
|
{
|
|
int ret;
|
|
|
|
if (wpaint_ensure_data(C, op) == FALSE) {
|
|
return OPERATOR_CANCELLED;
|
|
}
|
|
|
|
ret = WM_gesture_straightline_invoke(C, op, event);
|
|
if (ret & OPERATOR_RUNNING_MODAL) {
|
|
struct ARegion *ar = CTX_wm_region(C);
|
|
if (ar->regiontype == RGN_TYPE_WINDOW) {
|
|
if (event->type == LEFTMOUSE && event->val == KM_PRESS) { /* TODO, hardcoded, extend WM_gesture_straightline_ */
|
|
wmGesture *gesture = op->customdata;
|
|
gesture->mode = 1;
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
void PAINT_OT_weight_gradient(wmOperatorType *ot)
|
|
{
|
|
/* defined in DNA_space_types.h */
|
|
static EnumPropertyItem gradient_types[] = {
|
|
{WPAINT_GRADIENT_TYPE_LINEAR, "LINEAR", 0, "Linear", ""},
|
|
{WPAINT_GRADIENT_TYPE_RADIAL, "RADIAL", 0, "Radial", ""},
|
|
{0, NULL, 0, NULL, NULL}
|
|
};
|
|
|
|
PropertyRNA *prop;
|
|
|
|
/* identifiers */
|
|
ot->name = "Weight Gradient";
|
|
ot->idname = "PAINT_OT_weight_gradient";
|
|
ot->description = "Sample a line and show it in Scope panels";
|
|
|
|
/* api callbacks */
|
|
ot->invoke = paint_weight_gradient_invoke;
|
|
ot->modal = paint_weight_gradient_modal;
|
|
ot->exec = paint_weight_gradient_exec;
|
|
ot->poll = weight_paint_poll;
|
|
ot->cancel = WM_gesture_straightline_cancel;
|
|
|
|
/* flags */
|
|
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
|
|
|
|
prop = RNA_def_enum(ot->srna, "type", gradient_types, 0, "Type", "");
|
|
RNA_def_property_flag(prop, PROP_SKIP_SAVE);
|
|
|
|
WM_operator_properties_gesture_straightline(ot, CURSOR_EDIT);
|
|
}
|