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blender/source/blender/blenkernel/intern/DerivedMesh.c

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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2005 Blender Foundation.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/blenkernel/intern/DerivedMesh.c
* \ingroup bke
*/
#include <string.h>
#include <limits.h>
#include "MEM_guardedalloc.h"
#include "DNA_cloth_types.h"
#include "DNA_key_types.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_armature_types.h"
#include "DNA_object_types.h"
#include "DNA_scene_types.h" // N_T
#include "BLI_blenlib.h"
#include "BLI_math.h"
#include "BLI_memarena.h"
#include "BLI_array.h"
#include "BLI_pbvh.h"
#include "BLI_utildefines.h"
#include "BLI_linklist.h"
#include "BLF_translation.h"
#include "BKE_cdderivedmesh.h"
#include "BKE_displist.h"
#include "BKE_key.h"
#include "BKE_modifier.h"
#include "BKE_mesh.h"
#include "BKE_object.h"
#include "BKE_object_deform.h"
#include "BKE_paint.h"
#include "BKE_texture.h"
#include "BKE_multires.h"
#include "BKE_armature.h"
#include "BKE_particle.h"
#include "BKE_tessmesh.h"
#include "BKE_bvhutils.h"
#include "BKE_deform.h"
#include "BKE_global.h" /* For debug flag, DM_update_tessface_data() func. */
#ifdef WITH_GAMEENGINE
#include "BKE_navmesh_conversion.h"
static DerivedMesh *navmesh_dm_createNavMeshForVisualization(DerivedMesh *dm);
#endif
#include "BLO_sys_types.h" /* for intptr_t support */
#include "GL/glew.h"
#include "GPU_buffers.h"
#include "GPU_draw.h"
#include "GPU_extensions.h"
#include "GPU_material.h"
static void add_shapekey_layers(DerivedMesh *dm, Mesh *me, Object *ob);
static void shapekey_layers_to_keyblocks(DerivedMesh *dm, Mesh *me, int actshape_uid);
///////////////////////////////////
///////////////////////////////////
static MVert *dm_getVertArray(DerivedMesh *dm)
{
MVert *mvert = CustomData_get_layer(&dm->vertData, CD_MVERT);
if (!mvert) {
mvert = CustomData_add_layer(&dm->vertData, CD_MVERT, CD_CALLOC, NULL,
dm->getNumVerts(dm));
CustomData_set_layer_flag(&dm->vertData, CD_MVERT, CD_FLAG_TEMPORARY);
dm->copyVertArray(dm, mvert);
}
return mvert;
}
static MEdge *dm_getEdgeArray(DerivedMesh *dm)
{
MEdge *medge = CustomData_get_layer(&dm->edgeData, CD_MEDGE);
if (!medge) {
medge = CustomData_add_layer(&dm->edgeData, CD_MEDGE, CD_CALLOC, NULL,
dm->getNumEdges(dm));
CustomData_set_layer_flag(&dm->edgeData, CD_MEDGE, CD_FLAG_TEMPORARY);
dm->copyEdgeArray(dm, medge);
}
return medge;
}
static MFace *dm_getTessFaceArray(DerivedMesh *dm)
{
MFace *mface = CustomData_get_layer(&dm->faceData, CD_MFACE);
if (!mface) {
int numTessFaces = dm->getNumTessFaces(dm);
if (!numTessFaces) {
/* Do not add layer if there's no elements in it, this leads to issues later when
* this layer is needed with non-zero size, but currently CD stuff does not check
* for requested layer size on creation and just returns layer which was previously
* added (sergey) */
return NULL;
}
mface = CustomData_add_layer(&dm->faceData, CD_MFACE, CD_CALLOC, NULL, numTessFaces);
CustomData_set_layer_flag(&dm->faceData, CD_MFACE, CD_FLAG_TEMPORARY);
dm->copyTessFaceArray(dm, mface);
}
return mface;
}
static MLoop *dm_getLoopArray(DerivedMesh *dm)
{
MLoop *mloop = CustomData_get_layer(&dm->loopData, CD_MLOOP);
if (!mloop) {
mloop = CustomData_add_layer(&dm->loopData, CD_MLOOP, CD_CALLOC, NULL,
dm->getNumLoops(dm));
CustomData_set_layer_flag(&dm->loopData, CD_MLOOP, CD_FLAG_TEMPORARY);
dm->copyLoopArray(dm, mloop);
}
return mloop;
}
static MPoly *dm_getPolyArray(DerivedMesh *dm)
{
MPoly *mpoly = CustomData_get_layer(&dm->polyData, CD_MPOLY);
if (!mpoly) {
mpoly = CustomData_add_layer(&dm->polyData, CD_MPOLY, CD_CALLOC, NULL,
dm->getNumPolys(dm));
CustomData_set_layer_flag(&dm->polyData, CD_MPOLY, CD_FLAG_TEMPORARY);
dm->copyPolyArray(dm, mpoly);
}
return mpoly;
}
static MVert *dm_dupVertArray(DerivedMesh *dm)
{
MVert *tmp = MEM_callocN(sizeof(*tmp) * dm->getNumVerts(dm),
"dm_dupVertArray tmp");
if (tmp) dm->copyVertArray(dm, tmp);
return tmp;
}
static MEdge *dm_dupEdgeArray(DerivedMesh *dm)
{
MEdge *tmp = MEM_callocN(sizeof(*tmp) * dm->getNumEdges(dm),
"dm_dupEdgeArray tmp");
if (tmp) dm->copyEdgeArray(dm, tmp);
return tmp;
}
static MFace *dm_dupFaceArray(DerivedMesh *dm)
{
MFace *tmp = MEM_callocN(sizeof(*tmp) * dm->getNumTessFaces(dm),
"dm_dupFaceArray tmp");
if (tmp) dm->copyTessFaceArray(dm, tmp);
return tmp;
}
static MLoop *dm_dupLoopArray(DerivedMesh *dm)
{
MLoop *tmp = MEM_callocN(sizeof(*tmp) * dm->getNumLoops(dm),
"dm_dupLoopArray tmp");
if (tmp) dm->copyLoopArray(dm, tmp);
return tmp;
}
static MPoly *dm_dupPolyArray(DerivedMesh *dm)
{
MPoly *tmp = MEM_callocN(sizeof(*tmp) * dm->getNumPolys(dm),
"dm_dupPolyArray tmp");
if (tmp) dm->copyPolyArray(dm, tmp);
return tmp;
}
static CustomData *dm_getVertCData(DerivedMesh *dm)
{
return &dm->vertData;
}
static CustomData *dm_getEdgeCData(DerivedMesh *dm)
{
return &dm->edgeData;
}
static CustomData *dm_getTessFaceCData(DerivedMesh *dm)
{
return &dm->faceData;
}
static CustomData *dm_getLoopCData(DerivedMesh *dm)
{
return &dm->loopData;
}
static CustomData *dm_getPolyCData(DerivedMesh *dm)
{
return &dm->polyData;
}
void DM_init_funcs(DerivedMesh *dm)
{
/* default function implementations */
dm->getVertArray = dm_getVertArray;
dm->getEdgeArray = dm_getEdgeArray;
dm->getTessFaceArray = dm_getTessFaceArray;
dm->getLoopArray = dm_getLoopArray;
dm->getPolyArray = dm_getPolyArray;
dm->dupVertArray = dm_dupVertArray;
dm->dupEdgeArray = dm_dupEdgeArray;
dm->dupTessFaceArray = dm_dupFaceArray;
dm->dupLoopArray = dm_dupLoopArray;
dm->dupPolyArray = dm_dupPolyArray;
dm->getVertDataLayout = dm_getVertCData;
dm->getEdgeDataLayout = dm_getEdgeCData;
dm->getTessFaceDataLayout = dm_getTessFaceCData;
dm->getLoopDataLayout = dm_getLoopCData;
dm->getPolyDataLayout = dm_getPolyCData;
dm->getVertData = DM_get_vert_data;
dm->getEdgeData = DM_get_edge_data;
dm->getTessFaceData = DM_get_tessface_data;
dm->getVertDataArray = DM_get_vert_data_layer;
dm->getEdgeDataArray = DM_get_edge_data_layer;
dm->getTessFaceDataArray = DM_get_tessface_data_layer;
bvhcache_init(&dm->bvhCache);
}
void DM_init(DerivedMesh *dm, DerivedMeshType type, int numVerts, int numEdges,
int numTessFaces, int numLoops, int numPolys)
{
dm->type = type;
dm->numVertData = numVerts;
dm->numEdgeData = numEdges;
dm->numTessFaceData = numTessFaces;
dm->numLoopData = numLoops;
dm->numPolyData = numPolys;
DM_init_funcs(dm);
dm->needsFree = 1;
dm->auto_bump_scale = -1.0f;
dm->dirty = 0;
}
void DM_from_template(DerivedMesh *dm, DerivedMesh *source, DerivedMeshType type,
int numVerts, int numEdges, int numTessFaces,
int numLoops, int numPolys)
{
CustomData_copy(&source->vertData, &dm->vertData, CD_MASK_DERIVEDMESH,
CD_CALLOC, numVerts);
CustomData_copy(&source->edgeData, &dm->edgeData, CD_MASK_DERIVEDMESH,
CD_CALLOC, numEdges);
CustomData_copy(&source->faceData, &dm->faceData, CD_MASK_DERIVEDMESH,
CD_CALLOC, numTessFaces);
CustomData_copy(&source->loopData, &dm->loopData, CD_MASK_DERIVEDMESH,
CD_CALLOC, numLoops);
CustomData_copy(&source->polyData, &dm->polyData, CD_MASK_DERIVEDMESH,
CD_CALLOC, numPolys);
dm->type = type;
dm->numVertData = numVerts;
dm->numEdgeData = numEdges;
dm->numTessFaceData = numTessFaces;
dm->numLoopData = numLoops;
dm->numPolyData = numPolys;
DM_init_funcs(dm);
dm->needsFree = 1;
dm->dirty = 0;
}
int DM_release(DerivedMesh *dm)
{
if (dm->needsFree) {
bvhcache_free(&dm->bvhCache);
GPU_drawobject_free(dm);
CustomData_free(&dm->vertData, dm->numVertData);
CustomData_free(&dm->edgeData, dm->numEdgeData);
CustomData_free(&dm->faceData, dm->numTessFaceData);
CustomData_free(&dm->loopData, dm->numLoopData);
CustomData_free(&dm->polyData, dm->numPolyData);
return 1;
}
else {
CustomData_free_temporary(&dm->vertData, dm->numVertData);
CustomData_free_temporary(&dm->edgeData, dm->numEdgeData);
CustomData_free_temporary(&dm->faceData, dm->numTessFaceData);
CustomData_free_temporary(&dm->loopData, dm->numLoopData);
CustomData_free_temporary(&dm->polyData, dm->numPolyData);
return 0;
}
}
void DM_DupPolys(DerivedMesh *source, DerivedMesh *target)
{
CustomData_free(&target->loopData, source->numLoopData);
CustomData_free(&target->polyData, source->numPolyData);
CustomData_copy(&source->loopData, &target->loopData, CD_MASK_DERIVEDMESH, CD_DUPLICATE, source->numLoopData);
CustomData_copy(&source->polyData, &target->polyData, CD_MASK_DERIVEDMESH, CD_DUPLICATE, source->numPolyData);
target->numLoopData = source->numLoopData;
target->numPolyData = source->numPolyData;
if (!CustomData_has_layer(&target->polyData, CD_MPOLY)) {
MPoly *mpoly;
MLoop *mloop;
mloop = source->dupLoopArray(source);
mpoly = source->dupPolyArray(source);
CustomData_add_layer(&target->loopData, CD_MLOOP, CD_ASSIGN, mloop, source->numLoopData);
CustomData_add_layer(&target->polyData, CD_MPOLY, CD_ASSIGN, mpoly, source->numPolyData);
}
}
/* note: until all modifiers can take MPoly's as input,
* use this at the start of modifiers */
void DM_ensure_tessface(DerivedMesh *dm)
{
const int numTessFaces = dm->getNumTessFaces(dm);
const int numPolys = dm->getNumPolys(dm);
if ((numTessFaces == 0) && (numPolys != 0)) {
dm->recalcTessellation(dm);
if (dm->getNumTessFaces(dm) != 0) {
/* printf("info %s: polys -> ngons calculated\n", __func__); */
}
else {
printf("warning %s: could not create tessfaces from %d polygons, dm->type=%d\n",
__func__, numPolys, dm->type);
}
}
else if (dm->dirty && DM_DIRTY_TESS_CDLAYERS) {
BLI_assert(CustomData_has_layer(&dm->faceData, CD_POLYINDEX));
DM_update_tessface_data(dm);
}
dm->dirty &= ~DM_DIRTY_TESS_CDLAYERS;
}
/* Update tessface CD data from loop/poly ones. Needed when not retessellating after modstack evaluation. */
/* NOTE: Assumes dm has valid tessellated data! */
void DM_update_tessface_data(DerivedMesh *dm)
{
MFace *mf = dm->getTessFaceArray(dm);
MPoly *mp = dm->getPolyArray(dm);
MLoop *ml = dm->getLoopArray(dm);
CustomData *fdata = dm->getTessFaceDataLayout(dm);
CustomData *pdata = dm->getPolyDataLayout(dm);
CustomData *ldata = dm->getLoopDataLayout(dm);
const int numTex = CustomData_number_of_layers(pdata, CD_MTEXPOLY);
const int numCol = CustomData_number_of_layers(ldata, CD_MLOOPCOL);
const int hasPCol = CustomData_has_layer(ldata, CD_PREVIEW_MLOOPCOL);
const int hasOrigSpace = CustomData_has_layer(ldata, CD_ORIGSPACE_MLOOP);
int *polyindex = CustomData_get_layer(fdata, CD_POLYINDEX);
int mf_idx,
totface = dm->getNumTessFaces(dm),
ml_idx[4];
/* Should never occure, but better abort than segfault! */
if (!polyindex)
return;
CustomData_from_bmeshpoly(fdata, pdata, ldata, totface);
for (mf_idx = 0; mf_idx < totface; mf_idx++, mf++) {
const int mf_len = mf->v4 ? 4 : 3;
int i, not_done;
/* Find out loop indices. */
/* XXX Is there a better way to do this? */
/* NOTE: This assumes tessface are valid and in sync with loop/poly... Else, most likely, segfault! */
for (i = mp[polyindex[mf_idx]].loopstart, not_done = mf_len; not_done; i++) {
MLoop *tml = &ml[i];
if (tml->v == mf->v1) {
ml_idx[0] = i;
not_done--;
}
else if (tml->v == mf->v2) {
ml_idx[1] = i;
not_done--;
}
else if (tml->v == mf->v3) {
ml_idx[2] = i;
not_done--;
}
else if (mf_len == 4 && tml->v == mf->v4) {
ml_idx[3] = i;
not_done--;
}
}
BKE_mesh_loops_to_mface_corners(fdata, ldata, pdata,
ml_idx, mf_idx, polyindex[mf_idx],
mf_len,
numTex, numCol, hasPCol, hasOrigSpace);
}
if (G.debug & G_DEBUG)
printf("%s: Updated tessellated customdata of dm %p\n", __func__, dm);
dm->dirty &= ~DM_DIRTY_TESS_CDLAYERS;
}
void DM_to_mesh(DerivedMesh *dm, Mesh *me, Object *ob)
{
/* dm might depend on me, so we need to do everything with a local copy */
Mesh tmp = *me;
int totvert, totedge /*, totface */ /* UNUSED */, totloop, totpoly;
int did_shapekeys = 0;
memset(&tmp.vdata, 0, sizeof(tmp.vdata));
memset(&tmp.edata, 0, sizeof(tmp.edata));
memset(&tmp.fdata, 0, sizeof(tmp.fdata));
memset(&tmp.ldata, 0, sizeof(tmp.ldata));
memset(&tmp.pdata, 0, sizeof(tmp.pdata));
totvert = tmp.totvert = dm->getNumVerts(dm);
totedge = tmp.totedge = dm->getNumEdges(dm);
totloop = tmp.totloop = dm->getNumLoops(dm);
totpoly = tmp.totpoly = dm->getNumPolys(dm);
CustomData_copy(&dm->vertData, &tmp.vdata, CD_MASK_MESH, CD_DUPLICATE, totvert);
CustomData_copy(&dm->edgeData, &tmp.edata, CD_MASK_MESH, CD_DUPLICATE, totedge);
CustomData_copy(&dm->loopData, &tmp.ldata, CD_MASK_MESH, CD_DUPLICATE, totloop);
CustomData_copy(&dm->polyData, &tmp.pdata, CD_MASK_MESH, CD_DUPLICATE, totpoly);
if (CustomData_has_layer(&dm->vertData, CD_SHAPEKEY)) {
KeyBlock *kb;
int uid;
if (ob) {
kb = BLI_findlink(&me->key->block, ob->shapenr - 1);
if (kb) {
uid = kb->uid;
}
else {
printf("%s: error - could not find active shapekey %d!\n",
__func__, ob->shapenr - 1);
uid = INT_MAX;
}
}
else {
/* if no object, set to INT_MAX so we don't mess up any shapekey layers */
uid = INT_MAX;
}
shapekey_layers_to_keyblocks(dm, me, uid);
did_shapekeys = 1;
}
/* not all DerivedMeshes store their verts/edges/faces in CustomData, so
* we set them here in case they are missing */
if (!CustomData_has_layer(&tmp.vdata, CD_MVERT))
CustomData_add_layer(&tmp.vdata, CD_MVERT, CD_ASSIGN, dm->dupVertArray(dm), totvert);
if (!CustomData_has_layer(&tmp.edata, CD_MEDGE))
CustomData_add_layer(&tmp.edata, CD_MEDGE, CD_ASSIGN, dm->dupEdgeArray(dm), totedge);
if (!CustomData_has_layer(&tmp.pdata, CD_MPOLY)) {
tmp.mloop = dm->dupLoopArray(dm);
tmp.mpoly = dm->dupPolyArray(dm);
CustomData_add_layer(&tmp.ldata, CD_MLOOP, CD_ASSIGN, tmp.mloop, tmp.totloop);
CustomData_add_layer(&tmp.pdata, CD_MPOLY, CD_ASSIGN, tmp.mpoly, tmp.totpoly);
}
/* object had got displacement layer, should copy this layer to save sculpted data */
/* NOTE: maybe some other layers should be copied? nazgul */
if (CustomData_has_layer(&me->ldata, CD_MDISPS)) {
if (totloop == me->totloop) {
MDisps *mdisps = CustomData_get_layer(&me->ldata, CD_MDISPS);
CustomData_add_layer(&tmp.ldata, CD_MDISPS, CD_DUPLICATE, mdisps, totloop);
}
}
/* yes, must be before _and_ after tessellate */
mesh_update_customdata_pointers(&tmp, TRUE);
BKE_mesh_tessface_calc(&tmp);
CustomData_free(&me->vdata, me->totvert);
CustomData_free(&me->edata, me->totedge);
CustomData_free(&me->fdata, me->totface);
CustomData_free(&me->ldata, me->totloop);
CustomData_free(&me->pdata, me->totpoly);
/* ok, this should now use new CD shapekey data,
* which should be fed through the modifier
* stack*/
if (tmp.totvert != me->totvert && !did_shapekeys && me->key) {
printf("%s: YEEK! this should be recoded! Shape key loss!: ID '%s'\n", __func__, tmp.id.name);
if (tmp.key) tmp.key->id.us--;
tmp.key = NULL;
}
*me = tmp;
}
void DM_to_meshkey(DerivedMesh *dm, Mesh *me, KeyBlock *kb)
{
int a, totvert = dm->getNumVerts(dm);
float *fp;
MVert *mvert;
if (totvert == 0 || me->totvert == 0 || me->totvert != totvert) return;
if (kb->data) MEM_freeN(kb->data);
kb->data = MEM_callocN(me->key->elemsize * me->totvert, "kb->data");
kb->totelem = totvert;
fp = kb->data;
mvert = dm->getVertDataArray(dm, CD_MVERT);
for (a = 0; a < kb->totelem; a++, fp += 3, mvert++) {
copy_v3_v3(fp, mvert->co);
}
}
void DM_set_only_copy(DerivedMesh *dm, CustomDataMask mask)
{
CustomData_set_only_copy(&dm->vertData, mask);
CustomData_set_only_copy(&dm->edgeData, mask);
CustomData_set_only_copy(&dm->faceData, mask);
}
void DM_add_vert_layer(DerivedMesh *dm, int type, int alloctype, void *layer)
{
CustomData_add_layer(&dm->vertData, type, alloctype, layer, dm->numVertData);
}
void DM_add_edge_layer(DerivedMesh *dm, int type, int alloctype, void *layer)
{
CustomData_add_layer(&dm->edgeData, type, alloctype, layer, dm->numEdgeData);
}
void DM_add_tessface_layer(DerivedMesh *dm, int type, int alloctype, void *layer)
{
CustomData_add_layer(&dm->faceData, type, alloctype, layer, dm->numTessFaceData);
}
void DM_add_loop_layer(DerivedMesh *dm, int type, int alloctype, void *layer)
{
CustomData_add_layer(&dm->loopData, type, alloctype, layer, dm->numLoopData);
}
void DM_add_poly_layer(DerivedMesh *dm, int type, int alloctype, void *layer)
{
CustomData_add_layer(&dm->polyData, type, alloctype, layer, dm->numPolyData);
}
void *DM_get_vert_data(DerivedMesh *dm, int index, int type)
{
return CustomData_get(&dm->vertData, index, type);
}
void *DM_get_edge_data(DerivedMesh *dm, int index, int type)
{
return CustomData_get(&dm->edgeData, index, type);
}
void *DM_get_tessface_data(DerivedMesh *dm, int index, int type)
{
return CustomData_get(&dm->faceData, index, type);
}
void *DM_get_vert_data_layer(DerivedMesh *dm, int type)
{
if (type == CD_MVERT)
return dm->getVertArray(dm);
return CustomData_get_layer(&dm->vertData, type);
}
void *DM_get_edge_data_layer(DerivedMesh *dm, int type)
{
if (type == CD_MEDGE)
return dm->getEdgeArray(dm);
return CustomData_get_layer(&dm->edgeData, type);
}
void *DM_get_tessface_data_layer(DerivedMesh *dm, int type)
{
if (type == CD_MFACE)
return dm->getTessFaceArray(dm);
return CustomData_get_layer(&dm->faceData, type);
}
void *DM_get_poly_data_layer(DerivedMesh *dm, int type)
{
return CustomData_get_layer(&dm->polyData, type);
}
void *DM_get_loop_data_layer(DerivedMesh *dm, int type)
{
return CustomData_get_layer(&dm->loopData, type);
}
void DM_set_vert_data(DerivedMesh *dm, int index, int type, void *data)
{
CustomData_set(&dm->vertData, index, type, data);
}
void DM_set_edge_data(DerivedMesh *dm, int index, int type, void *data)
{
CustomData_set(&dm->edgeData, index, type, data);
}
void DM_set_tessface_data(DerivedMesh *dm, int index, int type, void *data)
{
CustomData_set(&dm->faceData, index, type, data);
}
void DM_copy_vert_data(DerivedMesh *source, DerivedMesh *dest,
int source_index, int dest_index, int count)
{
CustomData_copy_data(&source->vertData, &dest->vertData,
source_index, dest_index, count);
}
void DM_copy_edge_data(DerivedMesh *source, DerivedMesh *dest,
int source_index, int dest_index, int count)
{
CustomData_copy_data(&source->edgeData, &dest->edgeData,
source_index, dest_index, count);
}
void DM_copy_tessface_data(DerivedMesh *source, DerivedMesh *dest,
int source_index, int dest_index, int count)
{
CustomData_copy_data(&source->faceData, &dest->faceData,
source_index, dest_index, count);
}
void DM_copy_loop_data(DerivedMesh *source, DerivedMesh *dest,
int source_index, int dest_index, int count)
{
CustomData_copy_data(&source->loopData, &dest->loopData,
source_index, dest_index, count);
}
void DM_copy_poly_data(DerivedMesh *source, DerivedMesh *dest,
int source_index, int dest_index, int count)
{
CustomData_copy_data(&source->polyData, &dest->polyData,
source_index, dest_index, count);
}
void DM_free_vert_data(struct DerivedMesh *dm, int index, int count)
{
CustomData_free_elem(&dm->vertData, index, count);
}
void DM_free_edge_data(struct DerivedMesh *dm, int index, int count)
{
CustomData_free_elem(&dm->edgeData, index, count);
}
void DM_free_tessface_data(struct DerivedMesh *dm, int index, int count)
{
CustomData_free_elem(&dm->faceData, index, count);
}
void DM_free_loop_data(struct DerivedMesh *dm, int index, int count)
{
CustomData_free_elem(&dm->loopData, index, count);
}
void DM_free_poly_data(struct DerivedMesh *dm, int index, int count)
{
CustomData_free_elem(&dm->polyData, index, count);
}
void DM_interp_vert_data(DerivedMesh *source, DerivedMesh *dest,
int *src_indices, float *weights,
int count, int dest_index)
{
CustomData_interp(&source->vertData, &dest->vertData, src_indices,
weights, NULL, count, dest_index);
}
void DM_interp_edge_data(DerivedMesh *source, DerivedMesh *dest,
int *src_indices,
float *weights, EdgeVertWeight *vert_weights,
int count, int dest_index)
{
CustomData_interp(&source->edgeData, &dest->edgeData, src_indices,
weights, (float *)vert_weights, count, dest_index);
}
void DM_interp_tessface_data(DerivedMesh *source, DerivedMesh *dest,
int *src_indices,
float *weights, FaceVertWeight *vert_weights,
int count, int dest_index)
{
CustomData_interp(&source->faceData, &dest->faceData, src_indices,
weights, (float *)vert_weights, count, dest_index);
}
void DM_swap_tessface_data(DerivedMesh *dm, int index, const int *corner_indices)
{
CustomData_swap(&dm->faceData, index, corner_indices);
}
void DM_interp_loop_data(DerivedMesh *source, DerivedMesh *dest,
int *src_indices,
float *weights, int count, int dest_index)
{
CustomData_interp(&source->loopData, &dest->loopData, src_indices,
weights, NULL, count, dest_index);
}
void DM_interp_poly_data(DerivedMesh *source, DerivedMesh *dest,
int *src_indices,
float *weights, int count, int dest_index)
{
CustomData_interp(&source->polyData, &dest->polyData, src_indices,
weights, NULL, count, dest_index);
}
///
DerivedMesh *mesh_create_derived(Mesh *me, Object *ob, float (*vertCos)[3])
{
DerivedMesh *dm = CDDM_from_mesh(me, ob);
if (!dm)
return NULL;
if (vertCos)
CDDM_apply_vert_coords(dm, vertCos);
CDDM_calc_normals(dm);
return dm;
}
/***/
DerivedMesh *mesh_create_derived_for_modifier(Scene *scene, Object *ob,
ModifierData *md, int build_shapekey_layers)
{
Mesh *me = ob->data;
ModifierTypeInfo *mti = modifierType_getInfo(md->type);
DerivedMesh *dm;
KeyBlock *kb;
md->scene = scene;
if (!(md->mode & eModifierMode_Realtime)) return NULL;
if (mti->isDisabled && mti->isDisabled(md, 0)) return NULL;
if (build_shapekey_layers && me->key && (kb = BLI_findlink(&me->key->block, ob->shapenr - 1))) {
key_to_mesh(kb, me);
}
if (mti->type == eModifierTypeType_OnlyDeform) {
int numVerts;
float (*deformedVerts)[3] = mesh_getVertexCos(me, &numVerts);
mti->deformVerts(md, ob, NULL, deformedVerts, numVerts, 0);
dm = mesh_create_derived(me, ob, deformedVerts);
if (build_shapekey_layers)
add_shapekey_layers(dm, me, ob);
MEM_freeN(deformedVerts);
}
else {
DerivedMesh *tdm = mesh_create_derived(me, ob, NULL);
if (build_shapekey_layers)
add_shapekey_layers(tdm, me, ob);
dm = mti->applyModifier(md, ob, tdm, 0);
if (tdm != dm) tdm->release(tdm);
}
return dm;
}
static float *get_editbmesh_orco_verts(BMEditMesh *em)
{
BMIter iter;
BMVert *eve;
float *orco;
int a, totvert;
/* these may not really be the orco's, but it's only for preview.
* could be solver better once, but isn't simple */
totvert = em->bm->totvert;
orco = MEM_mallocN(sizeof(float) * 3 * totvert, "BMEditMesh Orco");
eve = BM_iter_new(&iter, em->bm, BM_VERTS_OF_MESH, NULL);
for (a = 0; eve; eve = BM_iter_step(&iter), a += 3) {
copy_v3_v3(orco + a, eve->co);
}
return orco;
}
/* orco custom data layer */
static void *get_orco_coords_dm(Object *ob, BMEditMesh *em, int layer, int *free)
{
*free = 0;
if (layer == CD_ORCO) {
/* get original coordinates */
*free = 1;
if (em)
return (float(*)[3])get_editbmesh_orco_verts(em);
else
return (float(*)[3])BKE_mesh_orco_verts_get(ob);
}
else if (layer == CD_CLOTH_ORCO) {
/* apply shape key for cloth, this should really be solved
* by a more flexible customdata system, but not simple */
if (!em) {
ClothModifierData *clmd = (ClothModifierData *)modifiers_findByType(ob, eModifierType_Cloth);
KeyBlock *kb = key_get_keyblock(ob_get_key(ob), clmd->sim_parms->shapekey_rest);
if (kb->data)
return kb->data;
}
return NULL;
}
return NULL;
}
static DerivedMesh *create_orco_dm(Object *ob, Mesh *me, BMEditMesh *em, int layer)
{
DerivedMesh *dm;
float (*orco)[3];
int free;
if (em) dm = CDDM_from_BMEditMesh(em, me, FALSE, FALSE);
else dm = CDDM_from_mesh(me, ob);
orco = get_orco_coords_dm(ob, em, layer, &free);
if (orco) {
CDDM_apply_vert_coords(dm, orco);
if (free) MEM_freeN(orco);
}
CDDM_calc_normals(dm);
return dm;
}
static void add_orco_dm(Object *ob, BMEditMesh *em, DerivedMesh *dm,
DerivedMesh *orcodm, int layer)
{
float (*orco)[3], (*layerorco)[3];
int totvert, free;
totvert = dm->getNumVerts(dm);
if (orcodm) {
orco = MEM_callocN(sizeof(float) * 3 * totvert, "dm orco");
free = 1;
if (orcodm->getNumVerts(orcodm) == totvert)
orcodm->getVertCos(orcodm, orco);
else
dm->getVertCos(dm, orco);
}
else
orco = get_orco_coords_dm(ob, em, layer, &free);
if (orco) {
if (layer == CD_ORCO)
BKE_mesh_orco_verts_transform(ob->data, orco, totvert, 0);
if (!(layerorco = DM_get_vert_data_layer(dm, layer))) {
DM_add_vert_layer(dm, layer, CD_CALLOC, NULL);
layerorco = DM_get_vert_data_layer(dm, layer);
}
memcpy(layerorco, orco, sizeof(float) * 3 * totvert);
if (free) MEM_freeN(orco);
}
}
/* weight paint colors */
/* Something of a hack, at the moment deal with weightpaint
* by tucking into colors during modifier eval, only in
* wpaint mode. Works ok but need to make sure recalc
* happens on enter/exit wpaint.
*/
void weight_to_rgb(float r_rgb[3], const float weight)
{
const float blend = ((weight / 2.0f) + 0.5f);
if (weight <= 0.25f) { /* blue->cyan */
r_rgb[0] = 0.0f;
r_rgb[1] = blend * weight * 4.0f;
r_rgb[2] = blend;
}
else if (weight <= 0.50f) { /* cyan->green */
r_rgb[0] = 0.0f;
r_rgb[1] = blend;
r_rgb[2] = blend * (1.0f - ((weight - 0.25f) * 4.0f));
}
else if (weight <= 0.75f) { /* green->yellow */
r_rgb[0] = blend * ((weight - 0.50f) * 4.0f);
r_rgb[1] = blend;
r_rgb[2] = 0.0f;
}
else if (weight <= 1.0f) { /* yellow->red */
r_rgb[0] = blend;
r_rgb[1] = blend * (1.0f - ((weight - 0.75f) * 4.0f));
r_rgb[2] = 0.0f;
}
else {
/* exceptional value, unclamped or nan,
* avoid uninitialized memory use */
r_rgb[0] = 1.0f;
r_rgb[1] = 0.0f;
r_rgb[2] = 1.0f;
}
}
/* draw_flag's for calc_weightpaint_vert_color */
enum {
CALC_WP_MULTIPAINT = (1 << 0),
CALC_WP_AUTO_NORMALIZE = (1 << 1)
};
static void weightpaint_color(unsigned char r_col[4], ColorBand *coba, const float input)
{
float colf[4];
if (coba) {
do_colorband(coba, input, colf);
}
else {
weight_to_rgb(colf, input);
}
/* don't use rgb_float_to_uchar() here because
* the resulting float doesn't need 0-1 clamp check */
r_col[0] = (unsigned char)(colf[0] * 255.0f);
r_col[1] = (unsigned char)(colf[1] * 255.0f);
r_col[2] = (unsigned char)(colf[2] * 255.0f);
r_col[3] = 255;
}
static void calc_weightpaint_vert_color(
unsigned char r_col[4],
MDeformVert *dv, ColorBand *coba,
const int defbase_tot, const int defbase_act,
const char *defbase_sel, const int defbase_sel_tot,
const int draw_flag)
{
float input = 0.0f;
int make_black = FALSE;
if ((defbase_sel_tot > 1) && (draw_flag & CALC_WP_MULTIPAINT)) {
int was_a_nonzero = FALSE;
unsigned int i;
MDeformWeight *dw = dv->dw;
for (i = dv->totweight; i != 0; i--, dw++) {
/* in multipaint, get the average if auto normalize is inactive
* get the sum if it is active */
if (dw->def_nr < defbase_tot) {
if (defbase_sel[dw->def_nr]) {
if (dw->weight) {
input += dw->weight;
was_a_nonzero = TRUE;
}
}
}
}
/* make it black if the selected groups have no weight on a vertex */
if (was_a_nonzero == FALSE) {
make_black = TRUE;
}
else if ((draw_flag & CALC_WP_AUTO_NORMALIZE) == FALSE) {
input /= defbase_sel_tot; /* get the average */
}
}
else {
/* default, non tricky behavior */
input = defvert_find_weight(dv, defbase_act);
}
if (make_black) { /* TODO, theme color */
r_col[3] = 255;
r_col[2] = 0;
r_col[1] = 0;
r_col[0] = 0;
}
else {
CLAMP(input, 0.0f, 1.0f);
weightpaint_color(r_col, coba, input);
}
}
static ColorBand *stored_cb = NULL;
void vDM_ColorBand_store(ColorBand *coba)
{
stored_cb = coba;
}
/* return an array of vertex weight colors, caller must free.
*
* note that we could save some memory and allocate RGB only but then we'd need to
* re-arrange the colors when copying to the face since MCol has odd ordering,
* so leave this as is - campbell */
static unsigned char *calc_weightpaint_vert_array(Object *ob, DerivedMesh *dm, int const draw_flag, ColorBand *coba)
{
MDeformVert *dv = DM_get_vert_data_layer(dm, CD_MDEFORMVERT);
int numVerts = dm->getNumVerts(dm);
unsigned char *wtcol_v = MEM_mallocN(sizeof(unsigned char) * numVerts * 4, "weightmap_v");
if (dv) {
unsigned char *wc = wtcol_v;
unsigned int i;
/* variables for multipaint */
const int defbase_tot = BLI_countlist(&ob->defbase);
const int defbase_act = ob->actdef - 1;
int defbase_sel_tot = 0;
char *defbase_sel = NULL;
if (draw_flag & CALC_WP_MULTIPAINT) {
defbase_sel = BKE_objdef_selected_get(ob, defbase_tot, &defbase_sel_tot);
}
for (i = numVerts; i != 0; i--, wc += 4, dv++) {
calc_weightpaint_vert_color(wc, dv, coba, defbase_tot, defbase_act, defbase_sel, defbase_sel_tot, draw_flag);
}
if (defbase_sel) {
MEM_freeN(defbase_sel);
}
}
else {
int col_i;
weightpaint_color((unsigned char *)&col_i, coba, 0.0f);
fill_vn_i((int *)wtcol_v, numVerts, col_i);
}
return wtcol_v;
}
/* return an array of vertex weight colors from given weights, caller must free.
*
* note that we could save some memory and allocate RGB only but then we'd need to
* re-arrange the colors when copying to the face since MCol has odd ordering,
* so leave this as is - campbell */
static unsigned char *calc_colors_from_weights_array(const int num, float *weights)
{
unsigned char *wtcol_v = MEM_mallocN(sizeof(unsigned char) * num * 4, "weightmap_v");
unsigned char *wc = wtcol_v;
int i;
for (i = 0; i < num; i++, wc += 4, weights++)
weightpaint_color((unsigned char *) wc, NULL, *weights);
return wtcol_v;
}
void DM_update_weight_mcol(Object *ob, DerivedMesh *dm, int const draw_flag,
float *weights, int num, const int *indices)
{
ColorBand *coba = stored_cb; /* warning, not a local var */
unsigned char *wtcol_v;
#if 0 /* See coment below. */
unsigned char *wtcol_f = dm->getTessFaceDataArray(dm, CD_PREVIEW_MCOL);
#endif
unsigned char(*wtcol_l)[4] = CustomData_get_layer(dm->getLoopDataLayout(dm), CD_PREVIEW_MLOOPCOL);
#if 0 /* See coment below. */
MFace *mf = dm->getTessFaceArray(dm);
#endif
MLoop *mloop = dm->getLoopArray(dm), *ml;
MPoly *mp = dm->getPolyArray(dm);
#if 0
int numFaces = dm->getNumTessFaces(dm);
#endif
int numVerts = dm->getNumVerts(dm);
int totloop;
int i, j;
#if 0 /* See comment below */
/* If no CD_PREVIEW_MCOL existed yet, add a new one! */
if (!wtcol_f)
wtcol_f = CustomData_add_layer(&dm->faceData, CD_PREVIEW_MCOL, CD_CALLOC, NULL, numFaces);
if (wtcol_f) {
unsigned char *wtcol_f_step = wtcol_f;
# else
#if 0
/* XXX We have to create a CD_PREVIEW_MCOL, else it might sigsev (after a SubSurf mod, eg)... */
if (!dm->getTessFaceDataArray(dm, CD_PREVIEW_MCOL))
CustomData_add_layer(&dm->faceData, CD_PREVIEW_MCOL, CD_CALLOC, NULL, numFaces);
#endif
{
#endif
/* Weights are given by caller. */
if (weights) {
float *w = weights;
/* If indices is not NULL, it means we do not have weights for all vertices,
* so we must create them (and set them to zero)... */
if (indices) {
w = MEM_callocN(sizeof(float) * numVerts, "Temp weight array DM_update_weight_mcol");
i = num;
while (i--)
w[indices[i]] = weights[i];
}
/* Convert float weights to colors. */
wtcol_v = calc_colors_from_weights_array(numVerts, w);
if (indices)
MEM_freeN(w);
}
/* No weights given, take them from active vgroup(s). */
else
wtcol_v = calc_weightpaint_vert_array(ob, dm, draw_flag, coba);
/* Now copy colors in all face verts. */
/* first add colors to the tessellation faces */
/* XXX Why update that layer? We have to update WEIGHT_MLOOPCOL anyway,
* and tessellation recreates mface layers from mloop/mpoly ones, so no
* need to fill WEIGHT_MCOL here. */
#if 0
for (i = 0; i < numFaces; i++, mf++, wtcol_f_step += (4 * 4)) {
/*origindex being NULL means we're operating on original mesh data*/
#if 0
unsigned int fidx = mf->v4 ? 3 : 2;
#else /* better zero out triangles 4th component. else valgrind complains when the buffer's copied */
unsigned int fidx;
if (mf->v4) {
fidx = 3;
}
else {
fidx = 2;
*(int *)(&wtcol_f_step[3 * 4]) = 0;
}
#endif
do {
copy_v4_v4_char((char *)&wtcol_f_step[fidx * 4],
(char *)&wtcol_v[4 * (*(&mf->v1 + fidx))]);
} while (fidx--);
}
#endif
/*now add to loops, so the data can be passed through the modifier stack*/
/* If no CD_PREVIEW_MLOOPCOL existed yet, we have to add a new one! */
if (!wtcol_l) {
BLI_array_declare(wtcol_l);
totloop = 0;
for (i = 0; i < dm->numPolyData; i++, mp++) {
ml = mloop + mp->loopstart;
BLI_array_grow_items(wtcol_l, mp->totloop);
for (j = 0; j < mp->totloop; j++, ml++, totloop++) {
copy_v4_v4_char((char *)&wtcol_l[totloop],
(char *)&wtcol_v[4 * ml->v]);
}
}
CustomData_add_layer(&dm->loopData, CD_PREVIEW_MLOOPCOL, CD_ASSIGN, wtcol_l, totloop);
}
else {
totloop = 0;
for (i = 0; i < dm->numPolyData; i++, mp++) {
ml = mloop + mp->loopstart;
for (j = 0; j < mp->totloop; j++, ml++, totloop++) {
copy_v4_v4_char((char *)&wtcol_l[totloop],
(char *)&wtcol_v[4 * ml->v]);
}
}
}
MEM_freeN(wtcol_v);
}
dm->dirty |= DM_DIRTY_TESS_CDLAYERS;
}
static void shapekey_layers_to_keyblocks(DerivedMesh *dm, Mesh *me, int actshape_uid)
{
KeyBlock *kb;
int i, j, tot;
if (!me->key)
return;
tot = CustomData_number_of_layers(&dm->vertData, CD_SHAPEKEY);
for (i = 0; i < tot; i++) {
CustomDataLayer *layer = &dm->vertData.layers[CustomData_get_layer_index_n(&dm->vertData, CD_SHAPEKEY, i)];
float (*cos)[3], (*kbcos)[3];
for (kb = me->key->block.first; kb; kb = kb->next) {
if (kb->uid == layer->uid)
break;
}
if (!kb) {
kb = add_keyblock(me->key, layer->name);
kb->uid = layer->uid;
}
if (kb->data)
MEM_freeN(kb->data);
cos = CustomData_get_layer_n(&dm->vertData, CD_SHAPEKEY, i);
kb->totelem = dm->numVertData;
kb->data = kbcos = MEM_mallocN(sizeof(float) * 3 * kb->totelem, "kbcos DerivedMesh.c");
if (kb->uid == actshape_uid) {
MVert *mvert = dm->getVertArray(dm);
for (j = 0; j < dm->numVertData; j++, kbcos++, mvert++) {
copy_v3_v3(*kbcos, mvert->co);
}
}
else {
for (j = 0; j < kb->totelem; j++, cos++, kbcos++) {
copy_v3_v3(*kbcos, *cos);
}
}
}
for (kb = me->key->block.first; kb; kb = kb->next) {
if (kb->totelem != dm->numVertData) {
if (kb->data)
MEM_freeN(kb->data);
kb->totelem = dm->numVertData;
kb->data = MEM_callocN(sizeof(float) * 3 * kb->totelem, "kb->data derivedmesh.c");
fprintf(stderr, "%s: lost a shapekey layer: '%s'! (bmesh internal error)\n", __func__, kb->name);
}
}
}
static void add_shapekey_layers(DerivedMesh *dm, Mesh *me, Object *UNUSED(ob))
{
KeyBlock *kb;
Key *key = me->key;
int i;
const size_t shape_alloc_len = sizeof(float) * 3 * me->totvert;
if (!me->key)
return;
/* ensure we can use mesh vertex count for derived mesh custom data */
if (me->totvert != dm->getNumVerts(dm)) {
fprintf(stderr,
"%s: vertex size mismatch (mesh/dm) '%s' (%d != %d)\n",
__func__, me->id.name + 2, me->totvert, dm->getNumVerts(dm));
return;
}
for (i = 0, kb = key->block.first; kb; kb = kb->next, i++) {
int ci;
float *array;
if (me->totvert != kb->totelem) {
fprintf(stderr,
"%s: vertex size mismatch (Mesh '%s':%d != KeyBlock '%s':%d)\n",
__func__, me->id.name + 2, me->totvert, kb->name, kb->totelem);
array = MEM_callocN(shape_alloc_len, __func__);
}
else {
array = MEM_mallocN(shape_alloc_len, __func__);
memcpy(array, kb->data, shape_alloc_len);
}
CustomData_add_layer_named(&dm->vertData, CD_SHAPEKEY, CD_ASSIGN, array, dm->numVertData, kb->name);
ci = CustomData_get_layer_index_n(&dm->vertData, CD_SHAPEKEY, i);
dm->vertData.layers[ci].uid = kb->uid;
}
}
/* new value for useDeform -1 (hack for the gameengine):
* - apply only the modifier stack of the object, skipping the virtual modifiers,
* - don't apply the key
* - apply deform modifiers and input vertexco
*/
static void mesh_calc_modifiers(Scene *scene, Object *ob, float (*inputVertexCos)[3],
DerivedMesh **deform_r, DerivedMesh **final_r,
int useRenderParams, int useDeform,
int needMapping, CustomDataMask dataMask,
int index, int useCache, int build_shapekey_layers)
{
Mesh *me = ob->data;
ModifierData *firstmd, *md, *previewmd = NULL;
CDMaskLink *datamasks, *curr;
/* XXX Always copying POLYINDEX, else tessellated data are no more valid! */
CustomDataMask mask, nextmask, append_mask = CD_MASK_POLYINDEX;
float (*deformedVerts)[3] = NULL;
DerivedMesh *dm = NULL, *orcodm, *clothorcodm, *finaldm;
int numVerts = me->totvert;
int required_mode;
int isPrevDeform = FALSE;
int skipVirtualArmature = (useDeform < 0);
MultiresModifierData *mmd = get_multires_modifier(scene, ob, 0);
int has_multires = mmd != NULL, multires_applied = 0;
int sculpt_mode = ob->mode & OB_MODE_SCULPT && ob->sculpt;
const int draw_flag = ((scene->toolsettings->multipaint ? CALC_WP_MULTIPAINT : 0) |
(scene->toolsettings->auto_normalize ? CALC_WP_AUTO_NORMALIZE : 0));
/* Generic preview only in object mode! */
const int do_mod_mcol = (ob->mode == OB_MODE_OBJECT);
#if 0 /* XXX Will re-enable this when we have global mod stack options. */
const int do_final_wmcol = (scene->toolsettings->weights_preview == WP_WPREVIEW_FINAL) && do_wmcol;
#endif
const int do_final_wmcol = FALSE;
int do_init_wmcol = ((dataMask & CD_MASK_PREVIEW_MCOL) && (ob->mode & OB_MODE_WEIGHT_PAINT) && !do_final_wmcol);
/* XXX Same as above... For now, only weights preview in WPaint mode. */
const int do_mod_wmcol = do_init_wmcol;
ModifierApplyFlag app_flags = useRenderParams ? MOD_APPLY_RENDER : 0;
ModifierApplyFlag deform_app_flags = app_flags;
if (useCache)
app_flags |= MOD_APPLY_USECACHE;
if (useDeform)
deform_app_flags |= MOD_APPLY_USECACHE;
if (mmd && !mmd->sculptlvl)
has_multires = 0;
if (!skipVirtualArmature) {
firstmd = modifiers_getVirtualModifierList(ob);
}
else {
/* game engine exception */
firstmd = ob->modifiers.first;
if (firstmd && firstmd->type == eModifierType_Armature)
firstmd = firstmd->next;
}
md = firstmd;
modifiers_clearErrors(ob);
if (useRenderParams) required_mode = eModifierMode_Render;
else required_mode = eModifierMode_Realtime;
datamasks = modifiers_calcDataMasks(scene, ob, md, dataMask, required_mode);
curr = datamasks;
if (do_mod_wmcol || do_mod_mcol) {
/* Find the last active modifier generating a preview, or NULL if none. */
/* XXX Currently, DPaint modifier just ignores this.
* Needs a stupid hack...
* The whole "modifier preview" thing has to be (re?)designed, anyway! */
previewmd = modifiers_getLastPreview(scene, md, required_mode);
}
if (deform_r) *deform_r = NULL;
*final_r = NULL;
if (useDeform) {
if (inputVertexCos)
deformedVerts = inputVertexCos;
/* Apply all leading deforming modifiers */
for (; md; md = md->next, curr = curr->next) {
ModifierTypeInfo *mti = modifierType_getInfo(md->type);
md->scene = scene;
if (!modifier_isEnabled(scene, md, required_mode)) continue;
if (useDeform < 0 && mti->dependsOnTime && mti->dependsOnTime(md)) continue;
if (mti->type == eModifierTypeType_OnlyDeform) {
if (!deformedVerts)
deformedVerts = mesh_getVertexCos(me, &numVerts);
mti->deformVerts(md, ob, NULL, deformedVerts, numVerts, deform_app_flags);
}
else {
break;
}
/* grab modifiers until index i */
if ((index >= 0) && (modifiers_indexInObject(ob, md) >= index))
break;
}
/* Result of all leading deforming modifiers is cached for
* places that wish to use the original mesh but with deformed
* coordinates (vpaint, etc.)
*/
if (deform_r) {
*deform_r = CDDM_from_mesh(me, ob);
if (build_shapekey_layers)
add_shapekey_layers(dm, me, ob);
if (deformedVerts) {
CDDM_apply_vert_coords(*deform_r, deformedVerts);
CDDM_calc_normals(*deform_r);
}
}
}
else {
/* default behavior for meshes */
if (inputVertexCos)
deformedVerts = inputVertexCos;
else
deformedVerts = mesh_getVertexCos(me, &numVerts);
}
/* Now apply all remaining modifiers. If useDeform is off then skip
* OnlyDeform ones.
*/
dm = NULL;
orcodm = NULL;
clothorcodm = NULL;
for (; md; md = md->next, curr = curr->next) {
ModifierTypeInfo *mti = modifierType_getInfo(md->type);
md->scene = scene;
if (!modifier_isEnabled(scene, md, required_mode)) continue;
if (mti->type == eModifierTypeType_OnlyDeform && !useDeform) continue;
if ((mti->flags & eModifierTypeFlag_RequiresOriginalData) && dm) {
modifier_setError(md, "%s", TIP_("Modifier requires original data, bad stack position."));
continue;
}
if (sculpt_mode && (!has_multires || multires_applied)) {
int unsupported = 0;
if (scene->toolsettings->sculpt->flags & SCULPT_ONLY_DEFORM)
unsupported |= mti->type != eModifierTypeType_OnlyDeform;
unsupported |= md->type == eModifierType_Multires && ((MultiresModifierData *)md)->sculptlvl == 0;
unsupported |= multires_applied;
if (unsupported) {
modifier_setError(md, "%s", TIP_("Not supported in sculpt mode."));
continue;
}
}
if (needMapping && !modifier_supportsMapping(md)) continue;
if (useDeform < 0 && mti->dependsOnTime && mti->dependsOnTime(md)) continue;
/* add an orco layer if needed by this modifier */
if (mti->requiredDataMask)
mask = mti->requiredDataMask(ob, md);
else
mask = 0;
if (dm && (mask & CD_MASK_ORCO))
add_orco_dm(ob, NULL, dm, orcodm, CD_ORCO);
/* How to apply modifier depends on (a) what we already have as
* a result of previous modifiers (could be a DerivedMesh or just
* deformed vertices) and (b) what type the modifier is.
*/
if (mti->type == eModifierTypeType_OnlyDeform) {
/* No existing verts to deform, need to build them. */
if (!deformedVerts) {
if (dm) {
/* Deforming a derived mesh, read the vertex locations
* out of the mesh and deform them. Once done with this
* run of deformers verts will be written back.
*/
numVerts = dm->getNumVerts(dm);
deformedVerts =
MEM_mallocN(sizeof(*deformedVerts) * numVerts, "dfmv");
dm->getVertCos(dm, deformedVerts);
}
else {
deformedVerts = mesh_getVertexCos(me, &numVerts);
}
}
/* if this is not the last modifier in the stack then recalculate the normals
* to avoid giving bogus normals to the next modifier see: [#23673] */
if (isPrevDeform && mti->dependsOnNormals && mti->dependsOnNormals(md)) {
/* XXX, this covers bug #23673, but we may need normal calc for other types */
if (dm && dm->type == DM_TYPE_CDDM) {
CDDM_apply_vert_coords(dm, deformedVerts);
CDDM_calc_normals(dm);
}
}
mti->deformVerts(md, ob, dm, deformedVerts, numVerts, deform_app_flags);
}
else {
DerivedMesh *ndm;
/* determine which data layers are needed by following modifiers */
if (curr->next)
nextmask = curr->next->mask;
else
nextmask = dataMask;
/* apply vertex coordinates or build a DerivedMesh as necessary */
if (dm) {
if (deformedVerts) {
DerivedMesh *tdm = CDDM_copy(dm);
dm->release(dm);
dm = tdm;
CDDM_apply_vert_coords(dm, deformedVerts);
CDDM_calc_normals(dm);
}
}
else {
dm = CDDM_from_mesh(me, ob);
if (build_shapekey_layers)
add_shapekey_layers(dm, me, ob);
if (deformedVerts) {
CDDM_apply_vert_coords(dm, deformedVerts);
CDDM_calc_normals(dm);
}
if (do_init_wmcol)
DM_update_weight_mcol(ob, dm, draw_flag, NULL, 0, NULL);
/* Constructive modifiers need to have an origindex
* otherwise they wont have anywhere to copy the data from.
*
* Also create ORIGINDEX data if any of the following modifiers
* requests it, this way Mirror, Solidify etc will keep ORIGINDEX
* data by using generic DM_copy_vert_data() functions.
*/
if (needMapping || (nextmask & CD_MASK_ORIGINDEX)) {
/* calc */
DM_add_vert_layer(dm, CD_ORIGINDEX, CD_CALLOC, NULL);
DM_add_edge_layer(dm, CD_ORIGINDEX, CD_CALLOC, NULL);
DM_add_poly_layer(dm, CD_ORIGINDEX, CD_CALLOC, NULL);
range_vn_i(DM_get_vert_data_layer(dm, CD_ORIGINDEX), dm->numVertData, 0);
range_vn_i(DM_get_edge_data_layer(dm, CD_ORIGINDEX), dm->numEdgeData, 0);
range_vn_i(DM_get_poly_data_layer(dm, CD_ORIGINDEX), dm->numPolyData, 0);
}
}
/* set the DerivedMesh to only copy needed data */
mask = curr->mask;
/* needMapping check here fixes bug [#28112], otherwise its
* possible that it wont be copied */
mask |= append_mask;
DM_set_only_copy(dm, mask | (needMapping ? CD_MASK_ORIGINDEX : 0));
/* add cloth rest shape key if need */
if (mask & CD_MASK_CLOTH_ORCO)
add_orco_dm(ob, NULL, dm, clothorcodm, CD_CLOTH_ORCO);
/* add an origspace layer if needed */
if ((curr->mask) & CD_MASK_ORIGSPACE_MLOOP) {
if (!CustomData_has_layer(&dm->loopData, CD_ORIGSPACE_MLOOP)) {
DM_add_loop_layer(dm, CD_ORIGSPACE_MLOOP, CD_CALLOC, NULL);
DM_init_origspace(dm);
}
}
ndm = mti->applyModifier(md, ob, dm, app_flags);
if (ndm) {
/* if the modifier returned a new dm, release the old one */
if (dm && dm != ndm) dm->release(dm);
dm = ndm;
if (deformedVerts) {
if (deformedVerts != inputVertexCos)
MEM_freeN(deformedVerts);
deformedVerts = NULL;
}
}
/* create an orco derivedmesh in parallel */
if (nextmask & CD_MASK_ORCO) {
if (!orcodm)
orcodm = create_orco_dm(ob, me, NULL, CD_ORCO);
nextmask &= ~CD_MASK_ORCO;
DM_set_only_copy(orcodm, nextmask | CD_MASK_ORIGINDEX |
(mti->requiredDataMask ?
mti->requiredDataMask(ob, md) : 0));
ndm = mti->applyModifier(md, ob, orcodm, app_flags & ~MOD_APPLY_USECACHE);
if (ndm) {
/* if the modifier returned a new dm, release the old one */
if (orcodm && orcodm != ndm) orcodm->release(orcodm);
orcodm = ndm;
}
}
/* create cloth orco derivedmesh in parallel */
if (nextmask & CD_MASK_CLOTH_ORCO) {
if (!clothorcodm)
clothorcodm = create_orco_dm(ob, me, NULL, CD_CLOTH_ORCO);
nextmask &= ~CD_MASK_CLOTH_ORCO;
DM_set_only_copy(clothorcodm, nextmask | CD_MASK_ORIGINDEX);
ndm = mti->applyModifier(md, ob, clothorcodm, app_flags & ~MOD_APPLY_USECACHE);
if (ndm) {
/* if the modifier returned a new dm, release the old one */
if (clothorcodm && clothorcodm != ndm) clothorcodm->release(clothorcodm);
clothorcodm = ndm;
}
}
/* in case of dynamic paint, make sure preview mask remains for following modifiers */
/* XXX Temp and hackish solution! */
if (md->type == eModifierType_DynamicPaint)
append_mask |= CD_MASK_PREVIEW_MLOOPCOL;
/* In case of active preview modifier, make sure preview mask remains for following modifiers. */
else if ((md == previewmd) && (do_mod_wmcol)) {
DM_update_weight_mcol(ob, dm, draw_flag, NULL, 0, NULL);
append_mask |= CD_MASK_PREVIEW_MLOOPCOL;
}
}
isPrevDeform = (mti->type == eModifierTypeType_OnlyDeform);
/* grab modifiers until index i */
if ((index >= 0) && (modifiers_indexInObject(ob, md) >= index))
break;
if (sculpt_mode && md->type == eModifierType_Multires)
multires_applied = 1;
}
for (md = firstmd; md; md = md->next)
modifier_freeTemporaryData(md);
/* Yay, we are done. If we have a DerivedMesh and deformed vertices
* need to apply these back onto the DerivedMesh. If we have no
* DerivedMesh then we need to build one.
*/
if (dm && deformedVerts) {
finaldm = CDDM_copy(dm);
dm->release(dm);
CDDM_apply_vert_coords(finaldm, deformedVerts);
CDDM_calc_normals(finaldm);
#if 0 /* For later nice mod preview! */
/* In case we need modified weights in CD_PREVIEW_MCOL, we have to re-compute it. */
if (do_final_wmcol)
DM_update_weight_mcol(ob, finaldm, draw_flag, NULL, 0, NULL);
#endif
}
else if (dm) {
finaldm = dm;
#if 0 /* For later nice mod preview! */
/* In case we need modified weights in CD_PREVIEW_MCOL, we have to re-compute it. */
if (do_final_wmcol)
DM_update_weight_mcol(ob, finaldm, draw_flag, NULL, 0, NULL);
#endif
}
else {
int recalc_normals = 0;
finaldm = CDDM_from_mesh(me, ob);
if (build_shapekey_layers) {
add_shapekey_layers(finaldm, me, ob);
recalc_normals = 1;
}
if (deformedVerts) {
CDDM_apply_vert_coords(finaldm, deformedVerts);
recalc_normals = 1;
}
if (recalc_normals) {
CDDM_calc_normals(finaldm);
}
/* In this case, we should never have weight-modifying modifiers in stack... */
if (do_init_wmcol)
DM_update_weight_mcol(ob, finaldm, draw_flag, NULL, 0, NULL);
}
/* add an orco layer if needed */
if (dataMask & CD_MASK_ORCO) {
add_orco_dm(ob, NULL, finaldm, orcodm, CD_ORCO);
if (deform_r && *deform_r)
add_orco_dm(ob, NULL, *deform_r, NULL, CD_ORCO);
}
{
/* calculating normals can re-calculate tessfaces in some cases */
#if 0
int num_tessface = finaldm->getNumTessFaces(finaldm);
#endif
/* --------------------------------------------------------------------- */
/* First calculate the polygon and vertex normals, re-tessellation
* copies these into the tessface's normal layer */
/* comment because this causes a bug when deform is applied after a
* bug when applied after a subsurf modifier (SubSurf -> Cast) for eg,
* it also looks like this isn't even needed since code above recalc's
* normals - campbell */
#if 0
finaldm->calcNormals(finaldm);
#endif
/* Re-tessellation is necessary to push render data (uvs, textures, colors)
* from loops and polys onto the tessfaces. This may be currently be
* redundant in cases where the render mode doesn't use these inputs, but
* ideally eventually tessellation would happen on-demand, and this is one
* of the primary places it would be needed. */
#if 0
if (num_tessface == 0 && finaldm->getNumTessFaces(finaldm) == 0)
#else
if (finaldm->getNumTessFaces(finaldm) == 0) /* || !CustomData_has_layer(&finaldm->faceData, CD_POLYINDEX)) */
#endif
{
finaldm->recalcTessellation(finaldm);
}
/* Even if tessellation is not needed, some modifiers might have modified CD layers
* (like mloopcol or mloopuv), hence we have to update those. */
else if (finaldm->dirty & DM_DIRTY_TESS_CDLAYERS) {
/* A tessellation already exists, it should always have a CD_POLYINDEX. */
BLI_assert(CustomData_has_layer(&finaldm->faceData, CD_POLYINDEX));
DM_update_tessface_data(finaldm);
}
/* Need to watch this, it can cause issues, see bug [#29338] */
/* take care with this block, we really need testing frameworks */
/* --------------------------------------------------------------------- */
/* without this, drawing ngon tri's faces will show ugly tessellated face
* normals and will also have to calculate normals on the fly, try avoid
* this where possible since calculating polygon normals isn't fast,
* note that this isn't a problem for subsurf (only quads) or editmode
* which deals with drawing differently.
*
* Never calc vertex normals because other code ensures these are up to date.
*/
if ((finaldm->type == DM_TYPE_CDDM) && (CustomData_has_layer(&finaldm->faceData, CD_NORMAL) == FALSE)) {
CDDM_calc_normals_mapping_ex(finaldm, TRUE);
}
}
#ifdef WITH_GAMEENGINE
/* NavMesh - this is a hack but saves having a NavMesh modifier */
if ((ob->gameflag & OB_NAVMESH) && (finaldm->type == DM_TYPE_CDDM)) {
DerivedMesh *tdm;
tdm = navmesh_dm_createNavMeshForVisualization(finaldm);
if (finaldm != tdm) {
finaldm->release(finaldm);
finaldm = tdm;
}
}
#endif /* WITH_GAMEENGINE */
*final_r = finaldm;
if (orcodm)
orcodm->release(orcodm);
if (clothorcodm)
clothorcodm->release(clothorcodm);
if (deformedVerts && deformedVerts != inputVertexCos)
MEM_freeN(deformedVerts);
BLI_linklist_free((LinkNode *)datamasks, NULL);
}
float (*editbmesh_get_vertex_cos(BMEditMesh * em, int *numVerts_r))[3]
{
int i, numVerts = *numVerts_r = em->bm->totvert;
float (*cos)[3];
BMIter iter;
BMVert *eve;
cos = MEM_mallocN(sizeof(float) * 3 * numVerts, "vertexcos");
eve = BM_iter_new(&iter, em->bm, BM_VERTS_OF_MESH, NULL);
for (i = 0; eve; eve = BM_iter_step(&iter), i++) {
copy_v3_v3(cos[i], eve->co);
}
return cos;
}
int editbmesh_modifier_is_enabled(Scene *scene, ModifierData *md, DerivedMesh *dm)
{
ModifierTypeInfo *mti = modifierType_getInfo(md->type);
int required_mode = eModifierMode_Realtime | eModifierMode_Editmode;
if (!modifier_isEnabled(scene, md, required_mode)) return 0;
if ((mti->flags & eModifierTypeFlag_RequiresOriginalData) && dm) {
modifier_setError(md, "%s", TIP_("Modifier requires original data, bad stack position."));
return 0;
}
return 1;
}
static void editbmesh_calc_modifiers(Scene *scene, Object *ob, BMEditMesh *em, DerivedMesh **cage_r,
DerivedMesh **final_r,
CustomDataMask dataMask)
{
ModifierData *md;
float (*deformedVerts)[3] = NULL;
CustomDataMask mask;
DerivedMesh *dm, *orcodm = NULL;
int i, numVerts = 0, cageIndex = modifiers_getCageIndex(scene, ob, NULL, 1);
CDMaskLink *datamasks, *curr;
int required_mode = eModifierMode_Realtime | eModifierMode_Editmode;
modifiers_clearErrors(ob);
if (cage_r && cageIndex == -1) {
*cage_r = getEditDerivedBMesh(em, ob, NULL);
}
dm = NULL;
md = modifiers_getVirtualModifierList(ob);
datamasks = modifiers_calcDataMasks(scene, ob, md, dataMask, required_mode);
curr = datamasks;
for (i = 0; md; i++, md = md->next, curr = curr->next) {
ModifierTypeInfo *mti = modifierType_getInfo(md->type);
md->scene = scene;
if (!editbmesh_modifier_is_enabled(scene, md, dm))
continue;
/* add an orco layer if needed by this modifier */
if (dm && mti->requiredDataMask) {
mask = mti->requiredDataMask(ob, md);
if (mask & CD_MASK_ORCO)
add_orco_dm(ob, em, dm, orcodm, CD_ORCO);
}
/* How to apply modifier depends on (a) what we already have as
* a result of previous modifiers (could be a DerivedMesh or just
* deformed vertices) and (b) what type the modifier is.
*/
if (mti->type == eModifierTypeType_OnlyDeform) {
/* No existing verts to deform, need to build them. */
if (!deformedVerts) {
if (dm) {
/* Deforming a derived mesh, read the vertex locations
* out of the mesh and deform them. Once done with this
* run of deformers verts will be written back.
*/
numVerts = dm->getNumVerts(dm);
deformedVerts =
MEM_mallocN(sizeof(*deformedVerts) * numVerts, "dfmv");
dm->getVertCos(dm, deformedVerts);
}
else {
deformedVerts = editbmesh_get_vertex_cos(em, &numVerts);
}
}
if (mti->deformVertsEM)
mti->deformVertsEM(md, ob, em, dm, deformedVerts, numVerts);
else
mti->deformVerts(md, ob, dm, deformedVerts, numVerts, 0);
}
else {
DerivedMesh *ndm;
/* apply vertex coordinates or build a DerivedMesh as necessary */
if (dm) {
if (deformedVerts) {
DerivedMesh *tdm = CDDM_copy(dm);
if (!(cage_r && dm == *cage_r)) dm->release(dm);
dm = tdm;
CDDM_apply_vert_coords(dm, deformedVerts);
CDDM_calc_normals(dm);
}
else if (cage_r && dm == *cage_r) {
/* dm may be changed by this modifier, so we need to copy it
*/
dm = CDDM_copy(dm);
}
}
else {
dm = CDDM_from_BMEditMesh(em, ob->data, FALSE, FALSE);
if (deformedVerts) {
CDDM_apply_vert_coords(dm, deformedVerts);
CDDM_calc_normals(dm);
}
}
/* create an orco derivedmesh in parallel */
mask = curr->mask;
if (mask & CD_MASK_ORCO) {
if (!orcodm)
orcodm = create_orco_dm(ob, ob->data, em, CD_ORCO);
mask &= ~CD_MASK_ORCO;
DM_set_only_copy(orcodm, mask | CD_MASK_ORIGINDEX);
if (mti->applyModifierEM)
ndm = mti->applyModifierEM(md, ob, em, orcodm);
else
ndm = mti->applyModifier(md, ob, orcodm, 0);
if (ndm) {
/* if the modifier returned a new dm, release the old one */
if (orcodm && orcodm != ndm) orcodm->release(orcodm);
orcodm = ndm;
}
}
/* set the DerivedMesh to only copy needed data */
mask = curr->mask; /* CD_MASK_ORCO may have been cleared above */
DM_set_only_copy(dm, mask | CD_MASK_ORIGINDEX);
if (mask & CD_MASK_ORIGSPACE_MLOOP) {
if (!CustomData_has_layer(&dm->loopData, CD_ORIGSPACE_MLOOP)) {
DM_add_loop_layer(dm, CD_ORIGSPACE_MLOOP, CD_CALLOC, NULL);
DM_init_origspace(dm);
}
}
if (mti->applyModifierEM)
ndm = mti->applyModifierEM(md, ob, em, dm);
else
ndm = mti->applyModifier(md, ob, dm, 0);
if (ndm) {
if (dm && dm != ndm)
dm->release(dm);
dm = ndm;
if (deformedVerts) {
MEM_freeN(deformedVerts);
deformedVerts = NULL;
}
}
}
if (cage_r && i == cageIndex) {
if (dm && deformedVerts) {
*cage_r = CDDM_copy(dm);
CDDM_apply_vert_coords(*cage_r, deformedVerts);
}
else if (dm) {
*cage_r = dm;
}
else {
*cage_r =
getEditDerivedBMesh(em, ob,
deformedVerts ? MEM_dupallocN(deformedVerts) : NULL);
}
}
}
BLI_linklist_free((LinkNode *)datamasks, NULL);
/* Yay, we are done. If we have a DerivedMesh and deformed vertices need
* to apply these back onto the DerivedMesh. If we have no DerivedMesh
* then we need to build one.
*/
if (dm && deformedVerts) {
*final_r = CDDM_copy(dm);
if (!(cage_r && dm == *cage_r)) dm->release(dm);
CDDM_apply_vert_coords(*final_r, deformedVerts);
CDDM_calc_normals(*final_r); /* was CDDM_calc_normals_mapping - campbell */
}
else if (dm) {
*final_r = dm;
(*final_r)->calcNormals(*final_r); /* BMESH_ONLY - BMESH_TODO. check if this is needed */
}
else if (!deformedVerts && cage_r && *cage_r) {
/* cage should already have up to date normals */
*final_r = *cage_r;
(*final_r)->calcNormals(*final_r); /* BMESH_ONLY - BMESH_TODO. check if this is needed */
}
else {
/* this is just a copy of the editmesh, no need to calc normals */
*final_r = getEditDerivedBMesh(em, ob, deformedVerts);
deformedVerts = NULL;
}
/* --- */
/* BMESH_ONLY, ensure tessface's used for drawing,
* but don't recalculate if the last modifier in the stack gives us tessfaces
* check if the derived meshes are DM_TYPE_EDITBMESH before calling, this isn't essential
* but quiets annoying error messages since tessfaces wont be created. */
if ((*final_r)->type != DM_TYPE_EDITBMESH) {
DM_ensure_tessface(*final_r);
}
if (cage_r) {
if ((*cage_r)->type != DM_TYPE_EDITBMESH) {
if (*cage_r != *final_r) {
DM_ensure_tessface(*cage_r);
}
}
}
/* --- */
/* add an orco layer if needed */
if (dataMask & CD_MASK_ORCO)
add_orco_dm(ob, em, *final_r, orcodm, CD_ORCO);
if (orcodm)
orcodm->release(orcodm);
if (deformedVerts)
MEM_freeN(deformedVerts);
}
static void clear_mesh_caches(Object *ob)
{
Mesh *me = ob->data;
/* also serves as signal to remake texspace */
if (ob->bb) {
MEM_freeN(ob->bb);
ob->bb = NULL;
}
if (me->bb) {
MEM_freeN(me->bb);
me->bb = NULL;
}
BKE_displist_free(&ob->disp);
if (ob->derivedFinal) {
ob->derivedFinal->needsFree = 1;
ob->derivedFinal->release(ob->derivedFinal);
ob->derivedFinal = NULL;
}
if (ob->derivedDeform) {
ob->derivedDeform->needsFree = 1;
ob->derivedDeform->release(ob->derivedDeform);
ob->derivedDeform = NULL;
}
if (ob->sculpt) {
BKE_object_sculpt_modifiers_changed(ob);
}
}
static void mesh_build_data(Scene *scene, Object *ob, CustomDataMask dataMask,
int build_shapekey_layers)
{
Object *obact = scene->basact ? scene->basact->object : NULL;
int editing = paint_facesel_test(ob);
/* weight paint and face select need original indices because of selection buffer drawing */
int needMapping = (ob == obact) && (editing || (ob->mode & (OB_MODE_WEIGHT_PAINT | OB_MODE_VERTEX_PAINT | OB_MODE_TEXTURE_PAINT)));
clear_mesh_caches(ob);
mesh_calc_modifiers(scene, ob, NULL, &ob->derivedDeform,
&ob->derivedFinal, 0, 1,
needMapping, dataMask, -1, 1, build_shapekey_layers);
DM_set_object_boundbox(ob, ob->derivedFinal);
ob->derivedFinal->needsFree = 0;
ob->derivedDeform->needsFree = 0;
ob->lastDataMask = dataMask;
if ((ob->mode & OB_MODE_SCULPT) && ob->sculpt) {
/* create PBVH immediately (would be created on the fly too,
* but this avoids waiting on first stroke) */
ob->sculpt->pbvh = ob->derivedFinal->getPBVH(ob, ob->derivedFinal);
}
}
static void editbmesh_build_data(Scene *scene, Object *obedit, BMEditMesh *em, CustomDataMask dataMask)
{
clear_mesh_caches(obedit);
if (em->derivedFinal) {
if (em->derivedFinal != em->derivedCage) {
em->derivedFinal->needsFree = 1;
em->derivedFinal->release(em->derivedFinal);
}
em->derivedFinal = NULL;
}
if (em->derivedCage) {
em->derivedCage->needsFree = 1;
em->derivedCage->release(em->derivedCage);
em->derivedCage = NULL;
}
editbmesh_calc_modifiers(scene, obedit, em, &em->derivedCage, &em->derivedFinal, dataMask);
DM_set_object_boundbox(obedit, em->derivedFinal);
em->lastDataMask = dataMask;
em->derivedFinal->needsFree = 0;
em->derivedCage->needsFree = 0;
}
void makeDerivedMesh(Scene *scene, Object *ob, BMEditMesh *em,
CustomDataMask dataMask, int build_shapekey_layers)
{
if (em) {
editbmesh_build_data(scene, ob, em, dataMask);
}
else {
mesh_build_data(scene, ob, dataMask, build_shapekey_layers);
}
}
/***/
DerivedMesh *mesh_get_derived_final(Scene *scene, Object *ob, CustomDataMask dataMask)
{
/* if there's no derived mesh or the last data mask used doesn't include
* the data we need, rebuild the derived mesh
*/
if (!ob->derivedFinal || (dataMask & ob->lastDataMask) != dataMask)
mesh_build_data(scene, ob, dataMask, 0);
return ob->derivedFinal;
}
DerivedMesh *mesh_get_derived_deform(Scene *scene, Object *ob, CustomDataMask dataMask)
{
/* if there's no derived mesh or the last data mask used doesn't include
* the data we need, rebuild the derived mesh
*/
if (!ob->derivedDeform || (dataMask & ob->lastDataMask) != dataMask)
mesh_build_data(scene, ob, dataMask, 0);
return ob->derivedDeform;
}
DerivedMesh *mesh_create_derived_render(Scene *scene, Object *ob, CustomDataMask dataMask)
{
DerivedMesh *final;
mesh_calc_modifiers(scene, ob, NULL, NULL, &final, 1, 1, 0, dataMask, -1, 0, 0);
return final;
}
DerivedMesh *mesh_create_derived_index_render(Scene *scene, Object *ob, CustomDataMask dataMask, int index)
{
DerivedMesh *final;
mesh_calc_modifiers(scene, ob, NULL, NULL, &final, 1, 1, 0, dataMask, index, 0, 0);
return final;
}
DerivedMesh *mesh_create_derived_view(Scene *scene, Object *ob, CustomDataMask dataMask)
{
DerivedMesh *final;
mesh_calc_modifiers(scene, ob, NULL, NULL, &final, 0, 1, 0, dataMask, -1, 0, 0);
return final;
}
DerivedMesh *mesh_create_derived_no_deform(Scene *scene, Object *ob, float (*vertCos)[3],
CustomDataMask dataMask)
{
DerivedMesh *final;
mesh_calc_modifiers(scene, ob, vertCos, NULL, &final, 0, 0, 0, dataMask, -1, 0, 0);
return final;
}
DerivedMesh *mesh_create_derived_no_virtual(Scene *scene, Object *ob, float (*vertCos)[3],
CustomDataMask dataMask)
{
DerivedMesh *final;
mesh_calc_modifiers(scene, ob, vertCos, NULL, &final, 0, -1, 0, dataMask, -1, 0, 0);
return final;
}
DerivedMesh *mesh_create_derived_physics(Scene *scene, Object *ob, float (*vertCos)[3],
CustomDataMask dataMask)
{
DerivedMesh *final;
mesh_calc_modifiers(scene, ob, vertCos, NULL, &final, 0, -1, 1, dataMask, -1, 0, 0);
return final;
}
DerivedMesh *mesh_create_derived_no_deform_render(Scene *scene, Object *ob,
float (*vertCos)[3],
CustomDataMask dataMask)
{
DerivedMesh *final;
mesh_calc_modifiers(scene, ob, vertCos, NULL, &final, 1, 0, 0, dataMask, -1, 0, 0);
return final;
}
/***/
DerivedMesh *editbmesh_get_derived_cage_and_final(Scene *scene, Object *obedit, BMEditMesh *em, DerivedMesh **final_r,
CustomDataMask dataMask)
{
/* if there's no derived mesh or the last data mask used doesn't include
* the data we need, rebuild the derived mesh
*/
if (!em->derivedCage ||
(em->lastDataMask & dataMask) != dataMask)
{
editbmesh_build_data(scene, obedit, em, dataMask);
}
*final_r = em->derivedFinal;
return em->derivedCage;
}
DerivedMesh *editbmesh_get_derived_cage(Scene *scene, Object *obedit, BMEditMesh *em, CustomDataMask dataMask)
{
/* if there's no derived mesh or the last data mask used doesn't include
* the data we need, rebuild the derived mesh
*/
if (!em->derivedCage ||
(em->lastDataMask & dataMask) != dataMask)
{
editbmesh_build_data(scene, obedit, em, dataMask);
}
return em->derivedCage;
}
DerivedMesh *editbmesh_get_derived_base(Object *obedit, BMEditMesh *em)
{
return getEditDerivedBMesh(em, obedit, NULL);
}
/* ********* For those who don't grasp derived stuff! (ton) :) *************** */
static void make_vertexcosnos__mapFunc(void *userData, int index, const float co[3],
const float no_f[3], const short no_s[3])
{
float *vec = userData;
vec += 6 * index;
/* check if we've been here before (normal should not be 0) */
if (vec[3] || vec[4] || vec[5]) return;
copy_v3_v3(vec, co);
vec += 3;
if (no_f) {
copy_v3_v3(vec, no_f);
}
else {
normal_short_to_float_v3(vec, no_s);
}
}
/* always returns original amount me->totvert of vertices and normals, but fully deformed and subsurfered */
/* this is needed for all code using vertexgroups (no subsurf support) */
/* it stores the normals as floats, but they can still be scaled as shorts (32767 = unit) */
/* in use now by vertex/weight paint and particle generating */
float *mesh_get_mapped_verts_nors(Scene *scene, Object *ob)
{
Mesh *me = ob->data;
DerivedMesh *dm;
float *vertexcosnos;
/* lets prevent crashing... */
if (ob->type != OB_MESH || me->totvert == 0)
return NULL;
dm = mesh_get_derived_final(scene, ob, CD_MASK_BAREMESH | CD_MASK_ORIGINDEX);
vertexcosnos = MEM_callocN(6 * sizeof(float) * me->totvert, "vertexcosnos map");
if (dm->foreachMappedVert) {
dm->foreachMappedVert(dm, make_vertexcosnos__mapFunc, vertexcosnos);
}
else {
float *fp = vertexcosnos;
int a;
for (a = 0; a < me->totvert; a++, fp += 6) {
dm->getVertCo(dm, a, fp);
dm->getVertNo(dm, a, fp + 3);
}
}
dm->release(dm);
return vertexcosnos;
}
/* ******************* GLSL ******************** */
typedef struct {
float *precomputedFaceNormals;
MTFace *mtface; /* texture coordinates */
MFace *mface; /* indices */
MVert *mvert; /* vertices & normals */
float (*orco)[3];
float (*tangent)[4]; /* destination */
int numTessFaces;
} SGLSLMeshToTangent;
/* interface */
#include "mikktspace.h"
static int GetNumFaces(const SMikkTSpaceContext *pContext)
{
SGLSLMeshToTangent *pMesh = (SGLSLMeshToTangent *) pContext->m_pUserData;
return pMesh->numTessFaces;
}
static int GetNumVertsOfFace(const SMikkTSpaceContext *pContext, const int face_num)
{
SGLSLMeshToTangent *pMesh = (SGLSLMeshToTangent *) pContext->m_pUserData;
return pMesh->mface[face_num].v4 != 0 ? 4 : 3;
}
static void GetPosition(const SMikkTSpaceContext *pContext, float fPos[], const int face_num, const int vert_index)
{
//assert(vert_index>=0 && vert_index<4);
SGLSLMeshToTangent *pMesh = (SGLSLMeshToTangent *) pContext->m_pUserData;
const float *co = pMesh->mvert[(&pMesh->mface[face_num].v1)[vert_index]].co;
copy_v3_v3(fPos, co);
}
static void GetTextureCoordinate(const SMikkTSpaceContext *pContext, float fUV[], const int face_num, const int vert_index)
{
//assert(vert_index>=0 && vert_index<4);
SGLSLMeshToTangent *pMesh = (SGLSLMeshToTangent *) pContext->m_pUserData;
if (pMesh->mtface != NULL) {
float *uv = pMesh->mtface[face_num].uv[vert_index];
fUV[0] = uv[0]; fUV[1] = uv[1];
}
else {
const float *orco = pMesh->orco[(&pMesh->mface[face_num].v1)[vert_index]];
map_to_sphere(&fUV[0], &fUV[1], orco[0], orco[1], orco[2]);
}
}
static void GetNormal(const SMikkTSpaceContext *pContext, float fNorm[], const int face_num, const int vert_index)
{
//assert(vert_index>=0 && vert_index<4);
SGLSLMeshToTangent *pMesh = (SGLSLMeshToTangent *) pContext->m_pUserData;
const int smoothnormal = (pMesh->mface[face_num].flag & ME_SMOOTH);
if (!smoothnormal) { // flat
if (pMesh->precomputedFaceNormals) {
copy_v3_v3(fNorm, &pMesh->precomputedFaceNormals[3 * face_num]);
}
else {
MFace *mf = &pMesh->mface[face_num];
float *p0 = pMesh->mvert[mf->v1].co;
float *p1 = pMesh->mvert[mf->v2].co;
float *p2 = pMesh->mvert[mf->v3].co;
if (mf->v4) {
float *p3 = pMesh->mvert[mf->v4].co;
normal_quad_v3(fNorm, p0, p1, p2, p3);
}
else {
normal_tri_v3(fNorm, p0, p1, p2);
}
}
}
else {
const short *no = pMesh->mvert[(&pMesh->mface[face_num].v1)[vert_index]].no;
normal_short_to_float_v3(fNorm, no);
}
}
static void SetTSpace(const SMikkTSpaceContext *pContext, const float fvTangent[], const float fSign, const int face_num, const int iVert)
{
//assert(vert_index>=0 && vert_index<4);
SGLSLMeshToTangent *pMesh = (SGLSLMeshToTangent *) pContext->m_pUserData;
float *pRes = pMesh->tangent[4 * face_num + iVert];
copy_v3_v3(pRes, fvTangent);
pRes[3] = fSign;
}
void DM_add_tangent_layer(DerivedMesh *dm)
{
/* mesh vars */
MTFace *mtface, *tf;
MFace *mface, *mf;
MVert *mvert, *v1, *v2, *v3, *v4;
MemArena *arena = NULL;
VertexTangent **vtangents = NULL;
float (*orco)[3] = NULL, (*tangent)[4];
float *uv1, *uv2, *uv3, *uv4, *vtang;
float fno[3], tang[3], uv[4][2];
int i, j, len, mf_vi[4], totvert, totface, iCalcNewMethod;
float *nors;
if (CustomData_get_layer_index(&dm->faceData, CD_TANGENT) != -1)
return;
nors = dm->getTessFaceDataArray(dm, CD_NORMAL);
/* check we have all the needed layers */
totvert = dm->getNumVerts(dm);
totface = dm->getNumTessFaces(dm);
mvert = dm->getVertArray(dm);
mface = dm->getTessFaceArray(dm);
mtface = dm->getTessFaceDataArray(dm, CD_MTFACE);
if (!mtface) {
orco = dm->getVertDataArray(dm, CD_ORCO);
if (!orco)
return;
}
/* create tangent layer */
DM_add_tessface_layer(dm, CD_TANGENT, CD_CALLOC, NULL);
tangent = DM_get_tessface_data_layer(dm, CD_TANGENT);
/* allocate some space */
arena = BLI_memarena_new(BLI_MEMARENA_STD_BUFSIZE, "tangent layer arena");
BLI_memarena_use_calloc(arena);
vtangents = MEM_callocN(sizeof(VertexTangent *) * totvert, "VertexTangent");
/* new computation method */
iCalcNewMethod = 1;
if (iCalcNewMethod != 0) {
SGLSLMeshToTangent mesh2tangent = {0};
SMikkTSpaceContext sContext = {0};
SMikkTSpaceInterface sInterface = {0};
mesh2tangent.precomputedFaceNormals = nors;
mesh2tangent.mtface = mtface;
mesh2tangent.mface = mface;
mesh2tangent.mvert = mvert;
mesh2tangent.orco = orco;
mesh2tangent.tangent = tangent;
mesh2tangent.numTessFaces = totface;
sContext.m_pUserData = &mesh2tangent;
sContext.m_pInterface = &sInterface;
sInterface.m_getNumFaces = GetNumFaces;
sInterface.m_getNumVerticesOfFace = GetNumVertsOfFace;
sInterface.m_getPosition = GetPosition;
sInterface.m_getTexCoord = GetTextureCoordinate;
sInterface.m_getNormal = GetNormal;
sInterface.m_setTSpaceBasic = SetTSpace;
/* 0 if failed */
iCalcNewMethod = genTangSpaceDefault(&sContext);
}
if (!iCalcNewMethod) {
/* sum tangents at connected vertices */
for (i = 0, tf = mtface, mf = mface; i < totface; mf++, tf++, i++) {
v1 = &mvert[mf->v1];
v2 = &mvert[mf->v2];
v3 = &mvert[mf->v3];
if (mf->v4) {
v4 = &mvert[mf->v4];
normal_quad_v3(fno, v4->co, v3->co, v2->co, v1->co);
}
else {
v4 = NULL;
normal_tri_v3(fno, v3->co, v2->co, v1->co);
}
if (mtface) {
uv1 = tf->uv[0];
uv2 = tf->uv[1];
uv3 = tf->uv[2];
uv4 = tf->uv[3];
}
else {
uv1 = uv[0]; uv2 = uv[1]; uv3 = uv[2]; uv4 = uv[3];
map_to_sphere(&uv[0][0], &uv[0][1], orco[mf->v1][0], orco[mf->v1][1], orco[mf->v1][2]);
map_to_sphere(&uv[1][0], &uv[1][1], orco[mf->v2][0], orco[mf->v2][1], orco[mf->v2][2]);
map_to_sphere(&uv[2][0], &uv[2][1], orco[mf->v3][0], orco[mf->v3][1], orco[mf->v3][2]);
if (v4)
map_to_sphere(&uv[3][0], &uv[3][1], orco[mf->v4][0], orco[mf->v4][1], orco[mf->v4][2]);
}
tangent_from_uv(uv1, uv2, uv3, v1->co, v2->co, v3->co, fno, tang);
sum_or_add_vertex_tangent(arena, &vtangents[mf->v1], tang, uv1);
sum_or_add_vertex_tangent(arena, &vtangents[mf->v2], tang, uv2);
sum_or_add_vertex_tangent(arena, &vtangents[mf->v3], tang, uv3);
if (mf->v4) {
v4 = &mvert[mf->v4];
tangent_from_uv(uv1, uv3, uv4, v1->co, v3->co, v4->co, fno, tang);
sum_or_add_vertex_tangent(arena, &vtangents[mf->v1], tang, uv1);
sum_or_add_vertex_tangent(arena, &vtangents[mf->v3], tang, uv3);
sum_or_add_vertex_tangent(arena, &vtangents[mf->v4], tang, uv4);
}
}
/* write tangent to layer */
for (i = 0, tf = mtface, mf = mface; i < totface; mf++, tf++, i++, tangent += 4) {
len = (mf->v4) ? 4 : 3;
if (mtface == NULL) {
map_to_sphere(&uv[0][0], &uv[0][1], orco[mf->v1][0], orco[mf->v1][1], orco[mf->v1][2]);
map_to_sphere(&uv[1][0], &uv[1][1], orco[mf->v2][0], orco[mf->v2][1], orco[mf->v2][2]);
map_to_sphere(&uv[2][0], &uv[2][1], orco[mf->v3][0], orco[mf->v3][1], orco[mf->v3][2]);
if (len == 4)
map_to_sphere(&uv[3][0], &uv[3][1], orco[mf->v4][0], orco[mf->v4][1], orco[mf->v4][2]);
}
mf_vi[0] = mf->v1;
mf_vi[1] = mf->v2;
mf_vi[2] = mf->v3;
mf_vi[3] = mf->v4;
for (j = 0; j < len; j++) {
vtang = find_vertex_tangent(vtangents[mf_vi[j]], mtface ? tf->uv[j] : uv[j]);
normalize_v3_v3(tangent[j], vtang);
((float *) tangent[j])[3] = 1.0f;
}
}
}
BLI_memarena_free(arena);
MEM_freeN(vtangents);
}
void DM_calc_auto_bump_scale(DerivedMesh *dm)
{
/* int totvert= dm->getNumVerts(dm); */ /* UNUSED */
int totface = dm->getNumTessFaces(dm);
MVert *mvert = dm->getVertArray(dm);
MFace *mface = dm->getTessFaceArray(dm);
MTFace *mtface = dm->getTessFaceDataArray(dm, CD_MTFACE);
if (mtface) {
double dsum = 0.0;
int nr_accumulated = 0;
int f;
for (f = 0; f < totface; f++) {
{
float *verts[4], *tex_coords[4];
const int nr_verts = mface[f].v4 != 0 ? 4 : 3;
int i, is_degenerate;
verts[0] = mvert[mface[f].v1].co; verts[1] = mvert[mface[f].v2].co; verts[2] = mvert[mface[f].v3].co;
tex_coords[0] = mtface[f].uv[0]; tex_coords[1] = mtface[f].uv[1]; tex_coords[2] = mtface[f].uv[2];
if (nr_verts == 4) {
verts[3] = mvert[mface[f].v4].co;
tex_coords[3] = mtface[f].uv[3];
}
/* discard degenerate faces */
is_degenerate = 0;
if (equals_v3v3(verts[0], verts[1]) || equals_v3v3(verts[0], verts[2]) || equals_v3v3(verts[1], verts[2]) ||
equals_v2v2(tex_coords[0], tex_coords[1]) || equals_v2v2(tex_coords[0], tex_coords[2]) || equals_v2v2(tex_coords[1], tex_coords[2]))
{
is_degenerate = 1;
}
/* verify last vertex as well if this is a quad */
if (is_degenerate == 0 && nr_verts == 4) {
if (equals_v3v3(verts[3], verts[0]) || equals_v3v3(verts[3], verts[1]) || equals_v3v3(verts[3], verts[2]) ||
equals_v2v2(tex_coords[3], tex_coords[0]) || equals_v2v2(tex_coords[3], tex_coords[1]) || equals_v2v2(tex_coords[3], tex_coords[2]))
{
is_degenerate = 1;
}
/* verify the winding is consistent */
if (is_degenerate == 0) {
float prev_edge[2];
int is_signed = 0;
sub_v2_v2v2(prev_edge, tex_coords[0], tex_coords[3]);
i = 0;
while (is_degenerate == 0 && i < 4) {
float cur_edge[2], signed_area;
sub_v2_v2v2(cur_edge, tex_coords[(i + 1) & 0x3], tex_coords[i]);
signed_area = prev_edge[0] * cur_edge[1] - prev_edge[1] * cur_edge[0];
if (i == 0) {
is_signed = (signed_area < 0.0f) ? 1 : 0;
}
else if ((is_signed != 0) != (signed_area < 0.0f)) {
is_degenerate = 1;
}
if (is_degenerate == 0) {
copy_v2_v2(prev_edge, cur_edge);
i++;
}
}
}
}
/* proceed if not a degenerate face */
if (is_degenerate == 0) {
int nr_tris_to_pile = 0;
/* quads split at shortest diagonal */
int offs = 0; /* initial triangulation is 0,1,2 and 0, 2, 3 */
if (nr_verts == 4) {
float pos_len_diag0, pos_len_diag1;
float vtmp[3];
sub_v3_v3v3(vtmp, verts[2], verts[0]);
pos_len_diag0 = dot_v3v3(vtmp, vtmp);
sub_v3_v3v3(vtmp, verts[3], verts[1]);
pos_len_diag1 = dot_v3v3(vtmp, vtmp);
if (pos_len_diag1 < pos_len_diag0) {
offs = 1; // alter split
}
else if (pos_len_diag0 == pos_len_diag1) { /* do UV check instead */
float tex_len_diag0, tex_len_diag1;
sub_v2_v2v2(vtmp, tex_coords[2], tex_coords[0]);
tex_len_diag0 = dot_v2v2(vtmp, vtmp);
sub_v2_v2v2(vtmp, tex_coords[3], tex_coords[1]);
tex_len_diag1 = dot_v2v2(vtmp, vtmp);
if (tex_len_diag1 < tex_len_diag0) {
offs = 1; /* alter split */
}
}
}
nr_tris_to_pile = nr_verts - 2;
if (nr_tris_to_pile == 1 || nr_tris_to_pile == 2) {
const int indices[] = {offs + 0, offs + 1, offs + 2, offs + 0, offs + 2, (offs + 3) & 0x3 };
int t;
for (t = 0; t < nr_tris_to_pile; t++) {
float f2x_area_uv;
float *p0 = verts[indices[t * 3 + 0]];
float *p1 = verts[indices[t * 3 + 1]];
float *p2 = verts[indices[t * 3 + 2]];
float edge_t0[2], edge_t1[2];
sub_v2_v2v2(edge_t0, tex_coords[indices[t * 3 + 1]], tex_coords[indices[t * 3 + 0]]);
sub_v2_v2v2(edge_t1, tex_coords[indices[t * 3 + 2]], tex_coords[indices[t * 3 + 0]]);
f2x_area_uv = fabsf(edge_t0[0] * edge_t1[1] - edge_t0[1] * edge_t1[0]);
if (f2x_area_uv > FLT_EPSILON) {
float norm[3], v0[3], v1[3], f2x_surf_area, fsurf_ratio;
sub_v3_v3v3(v0, p1, p0);
sub_v3_v3v3(v1, p2, p0);
cross_v3_v3v3(norm, v0, v1);
f2x_surf_area = len_v3(norm);
fsurf_ratio = f2x_surf_area / f2x_area_uv; // tri area divided by texture area
nr_accumulated++;
dsum += (double)(fsurf_ratio);
}
}
}
}
}
}
/* finalize */
{
const float avg_area_ratio = (nr_accumulated > 0) ? ((float)(dsum / nr_accumulated)) : 1.0f;
const float use_as_render_bump_scale = sqrtf(avg_area_ratio); // use width of average surface ratio as your bump scale
dm->auto_bump_scale = use_as_render_bump_scale;
}
}
else {
dm->auto_bump_scale = 1.0f;
}
}
void DM_vertex_attributes_from_gpu(DerivedMesh *dm, GPUVertexAttribs *gattribs, DMVertexAttribs *attribs)
{
CustomData *vdata, *fdata, *tfdata = NULL;
int a, b, layer;
/* From the layers requested by the GLSL shader, figure out which ones are
* actually available for this derivedmesh, and retrieve the pointers */
memset(attribs, 0, sizeof(DMVertexAttribs));
vdata = &dm->vertData;
fdata = tfdata = dm->getTessFaceDataLayout(dm);
/* calc auto bump scale if necessary */
if (dm->auto_bump_scale <= 0.0f)
DM_calc_auto_bump_scale(dm);
/* add a tangent layer if necessary */
for (b = 0; b < gattribs->totlayer; b++)
if (gattribs->layer[b].type == CD_TANGENT)
if (CustomData_get_layer_index(fdata, CD_TANGENT) == -1)
DM_add_tangent_layer(dm);
for (b = 0; b < gattribs->totlayer; b++) {
if (gattribs->layer[b].type == CD_MTFACE) {
/* uv coordinates */
if (dm->type == DM_TYPE_EDITBMESH) {
/* exception .. */
CustomData *ldata = dm->getLoopDataLayout(dm);
if (gattribs->layer[b].name[0])
layer = CustomData_get_named_layer_index(ldata, CD_MLOOPUV,
gattribs->layer[b].name);
else
layer = CustomData_get_active_layer_index(ldata, CD_MLOOPUV);
if (layer != -1) {
a = attribs->tottface++;
attribs->tface[a].array = tfdata->layers[layer].data;
attribs->tface[a].em_offset = tfdata->layers[layer].offset;
attribs->tface[a].gl_index = gattribs->layer[b].glindex;
attribs->tface[a].gl_texco = gattribs->layer[b].gltexco;
}
}
else {
if (gattribs->layer[b].name[0])
layer = CustomData_get_named_layer_index(tfdata, CD_MTFACE,
gattribs->layer[b].name);
else
layer = CustomData_get_active_layer_index(tfdata, CD_MTFACE);
if (layer != -1) {
a = attribs->tottface++;
attribs->tface[a].array = tfdata->layers[layer].data;
attribs->tface[a].em_offset = tfdata->layers[layer].offset;
attribs->tface[a].gl_index = gattribs->layer[b].glindex;
attribs->tface[a].gl_texco = gattribs->layer[b].gltexco;
}
}
}
else if (gattribs->layer[b].type == CD_MCOL) {
if (dm->type == DM_TYPE_EDITBMESH) {
/* exception .. */
CustomData *ldata = dm->getLoopDataLayout(dm);
if (gattribs->layer[b].name[0])
layer = CustomData_get_named_layer_index(ldata, CD_MLOOPCOL,
gattribs->layer[b].name);
else
layer = CustomData_get_active_layer_index(ldata, CD_MLOOPCOL);
if (layer != -1) {
a = attribs->totmcol++;
attribs->mcol[a].array = tfdata->layers[layer].data;
attribs->mcol[a].em_offset = tfdata->layers[layer].offset;
attribs->mcol[a].gl_index = gattribs->layer[b].glindex;
}
}
else {
/* vertex colors */
if (gattribs->layer[b].name[0])
layer = CustomData_get_named_layer_index(tfdata, CD_MCOL,
gattribs->layer[b].name);
else
layer = CustomData_get_active_layer_index(tfdata, CD_MCOL);
if (layer != -1) {
a = attribs->totmcol++;
attribs->mcol[a].array = tfdata->layers[layer].data;
attribs->mcol[a].em_offset = tfdata->layers[layer].offset;
attribs->mcol[a].gl_index = gattribs->layer[b].glindex;
}
}
}
else if (gattribs->layer[b].type == CD_TANGENT) {
/* tangents */
layer = CustomData_get_layer_index(fdata, CD_TANGENT);
if (layer != -1) {
attribs->tottang = 1;
attribs->tang.array = fdata->layers[layer].data;
attribs->tang.em_offset = fdata->layers[layer].offset;
attribs->tang.gl_index = gattribs->layer[b].glindex;
}
}
else if (gattribs->layer[b].type == CD_ORCO) {
/* original coordinates */
layer = CustomData_get_layer_index(vdata, CD_ORCO);
if (layer != -1) {
attribs->totorco = 1;
attribs->orco.array = vdata->layers[layer].data;
attribs->orco.em_offset = vdata->layers[layer].offset;
attribs->orco.gl_index = gattribs->layer[b].glindex;
attribs->orco.gl_texco = gattribs->layer[b].gltexco;
}
}
}
}
/* Set object's bounding box based on DerivedMesh min/max data */
void DM_set_object_boundbox(Object *ob, DerivedMesh *dm)
{
float min[3], max[3];
INIT_MINMAX(min, max);
dm->getMinMax(dm, min, max);
if (!ob->bb)
ob->bb = MEM_callocN(sizeof(BoundBox), "DM-BoundBox");
BKE_boundbox_init_from_minmax(ob->bb, min, max);
}
/* --- NAVMESH (begin) --- */
#ifdef WITH_GAMEENGINE
/* BMESH_TODO, navmesh is not working right currently
* All tools set this as MPoly data, but derived mesh currently draws from MFace (tessface)
*
* Proposed solution, rather then copy CD_RECAST into the MFace array,
* use ORIGINDEX to get the original poly index and then get the CD_RECAST
* data from the original me->mpoly layer. - campbell
*/
BLI_INLINE int navmesh_bit(int a, int b)
{
return (a & (1 << b)) >> b;
}
BLI_INLINE void navmesh_intToCol(int i, float col[3])
{
int r = navmesh_bit(i, 0) + navmesh_bit(i, 3) * 2 + 1;
int g = navmesh_bit(i, 1) + navmesh_bit(i, 4) * 2 + 1;
int b = navmesh_bit(i, 2) + navmesh_bit(i, 5) * 2 + 1;
col[0] = 1 - r * 63.0f / 255.0f;
col[1] = 1 - g * 63.0f / 255.0f;
col[2] = 1 - b * 63.0f / 255.0f;
}
static void navmesh_drawColored(DerivedMesh *dm)
{
int a, glmode;
MVert *mvert = (MVert *)CustomData_get_layer(&dm->vertData, CD_MVERT);
MFace *mface = (MFace *)CustomData_get_layer(&dm->faceData, CD_MFACE);
int *polygonIdx = (int *)CustomData_get_layer(&dm->polyData, CD_RECAST);
float col[3];
if (!polygonIdx)
return;
#if 0
//UI_ThemeColor(TH_WIRE);
glDisable(GL_LIGHTING);
glLineWidth(2.0);
dm->drawEdges(dm, 0, 1);
glLineWidth(1.0);
glEnable(GL_LIGHTING);
#endif
glDisable(GL_LIGHTING);
/* if (GPU_buffer_legacy(dm) ) */ { /* TODO - VBO draw code, not high priority - campbell */
DEBUG_VBO("Using legacy code. drawNavMeshColored\n");
//glShadeModel(GL_SMOOTH);
glBegin(glmode = GL_QUADS);
for (a = 0; a < dm->numTessFaceData; a++, mface++) {
int new_glmode = mface->v4 ? GL_QUADS : GL_TRIANGLES;
int pi = polygonIdx[a];
if (pi <= 0) {
zero_v3(col);
}
else {
navmesh_intToCol(pi, col);
}
if (new_glmode != glmode) {
glEnd();
glBegin(glmode = new_glmode);
}
glColor3fv(col);
glVertex3fv(mvert[mface->v1].co);
glVertex3fv(mvert[mface->v2].co);
glVertex3fv(mvert[mface->v3].co);
if (mface->v4) {
glVertex3fv(mvert[mface->v4].co);
}
}
glEnd();
}
glEnable(GL_LIGHTING);
}
static void navmesh_DM_drawFacesTex(DerivedMesh *dm,
DMSetDrawOptionsTex setDrawOptions,
DMCompareDrawOptions compareDrawOptions,
void *userData)
{
(void) setDrawOptions;
(void) compareDrawOptions;
(void) userData;
navmesh_drawColored(dm);
}
static void navmesh_DM_drawFacesSolid(DerivedMesh *dm,
float (*partial_redraw_planes)[4],
int UNUSED(fast), DMSetMaterial setMaterial)
{
(void) partial_redraw_planes;
(void) setMaterial;
//drawFacesSolid_original(dm, partial_redraw_planes, fast, setMaterial);
navmesh_drawColored(dm);
}
static DerivedMesh *navmesh_dm_createNavMeshForVisualization(DerivedMesh *dm)
{
DerivedMesh *result;
int maxFaces = dm->getNumPolys(dm);
int *recastData;
int vertsPerPoly = 0, nverts = 0, ndtris = 0, npolys = 0;
float *verts = NULL;
unsigned short *dtris = NULL, *dmeshes = NULL, *polys = NULL;
int *dtrisToPolysMap = NULL, *dtrisToTrisMap = NULL, *trisToFacesMap = NULL;
int res;
result = CDDM_copy(dm);
if (!CustomData_has_layer(&result->polyData, CD_RECAST)) {
int *sourceRecastData = (int *)CustomData_get_layer(&dm->polyData, CD_RECAST);
if (sourceRecastData) {
CustomData_add_layer_named(&result->polyData, CD_RECAST, CD_DUPLICATE,
sourceRecastData, maxFaces, "recastData");
}
}
recastData = (int *)CustomData_get_layer(&result->polyData, CD_RECAST);
/* note: This is not good design! - really should not be doing this */
result->drawFacesTex = navmesh_DM_drawFacesTex;
result->drawFacesSolid = navmesh_DM_drawFacesSolid;
/* process mesh */
res = buildNavMeshDataByDerivedMesh(dm, &vertsPerPoly, &nverts, &verts, &ndtris, &dtris,
&npolys, &dmeshes, &polys, &dtrisToPolysMap, &dtrisToTrisMap,
&trisToFacesMap);
if (res) {
size_t polyIdx;
/* invalidate concave polygon */
for (polyIdx = 0; polyIdx < (size_t)npolys; polyIdx++) {
unsigned short *poly = &polys[polyIdx * 2 * vertsPerPoly];
if (!polyIsConvex(poly, vertsPerPoly, verts)) {
/* set negative polygon idx to all faces */
unsigned short *dmesh = &dmeshes[4 * polyIdx];
unsigned short tbase = dmesh[2];
unsigned short tnum = dmesh[3];
unsigned short ti;
for (ti = 0; ti < tnum; ti++) {
unsigned short triidx = dtrisToTrisMap[tbase + ti];
unsigned short faceidx = trisToFacesMap[triidx];
if (recastData[faceidx] > 0) {
recastData[faceidx] = -recastData[faceidx];
}
}
}
}
}
else {
printf("%s: Error during creation polygon infos\n", __func__);
}
/* clean up */
if (verts != NULL)
MEM_freeN(verts);
if (dtris != NULL)
MEM_freeN(dtris);
if (dmeshes != NULL)
MEM_freeN(dmeshes);
if (polys != NULL)
MEM_freeN(polys);
if (dtrisToPolysMap != NULL)
MEM_freeN(dtrisToPolysMap);
if (dtrisToTrisMap != NULL)
MEM_freeN(dtrisToTrisMap);
if (trisToFacesMap != NULL)
MEM_freeN(trisToFacesMap);
return result;
}
#endif /* WITH_GAMEENGINE */
/* --- NAVMESH (end) --- */
void DM_init_origspace(DerivedMesh *dm)
{
static float default_osf[4][2] = {{0, 0}, {1, 0}, {1, 1}, {0, 1}};
OrigSpaceLoop *lof_array = CustomData_get_layer(&dm->loopData, CD_ORIGSPACE_MLOOP);
OrigSpaceLoop *lof;
const int numpoly = dm->getNumPolys(dm);
// const int numloop = dm->getNumLoops(dm);
MPoly *mp = dm->getPolyArray(dm);
int i, j;
for (i = 0; i < numpoly; i++, mp++) {
/* only quads/tri's for now */
if (mp->totloop == 3 || mp->totloop == 4) {
lof = lof_array + mp->loopstart;
for (j = 0; j < mp->totloop; j++, lof++) {
copy_v2_v2(lof->uv, default_osf[j]);
}
}
}
dm->dirty |= DM_DIRTY_TESS_CDLAYERS;
}
/* derivedmesh info printing function,
* to help track down differences DM output */
#ifndef NDEBUG
#include "BLI_dynstr.h"
static void dm_debug_info_layers(DynStr *dynstr, DerivedMesh *dm, void *(*getElemDataArray)(DerivedMesh *, int))
{
int type;
for (type = 0; type < CD_NUMTYPES; type++) {
/* note: doesnt account for multiple layers */
void *pt = getElemDataArray(dm, type);
if (pt) {
const char *name = CustomData_layertype_name(type);
const int size = CustomData_sizeof(type);
const char *structname;
int structnum;
CustomData_file_write_info(type, &structname, &structnum);
BLI_dynstr_appendf(dynstr,
" dict(name='%s', struct='%s', type=%d, ptr='%p', elem=%d, length=%d),\n",
name, structname, type, (void *)pt, size, (int)(MEM_allocN_len(pt) / size));
}
}
}
char *DM_debug_info(DerivedMesh *dm)
{
DynStr *dynstr = BLI_dynstr_new();
char *ret;
const char *tstr;
BLI_dynstr_appendf(dynstr, "{\n");
BLI_dynstr_appendf(dynstr, " 'ptr': '%p',\n", (void *)dm);
switch (dm->type) {
case DM_TYPE_CDDM: tstr = "DM_TYPE_CDDM"; break;
case DM_TYPE_EDITBMESH: tstr = "DM_TYPE_EDITMESH"; break;
case DM_TYPE_CCGDM: tstr = "DM_TYPE_CCGDM"; break;
default: tstr = "UNKNOWN"; break;
}
BLI_dynstr_appendf(dynstr, " 'type': '%s',\n", tstr);
BLI_dynstr_appendf(dynstr, " 'numVertData': %d,\n", dm->numVertData);
BLI_dynstr_appendf(dynstr, " 'numEdgeData': %d,\n", dm->numEdgeData);
BLI_dynstr_appendf(dynstr, " 'numTessFaceData': %d,\n", dm->numTessFaceData);
BLI_dynstr_appendf(dynstr, " 'numPolyData': %d,\n", dm->numPolyData);
BLI_dynstr_appendf(dynstr, " 'deformedOnly': %d,\n", dm->deformedOnly);
BLI_dynstr_appendf(dynstr, " 'vertexLayers': (\n");
dm_debug_info_layers(dynstr, dm, dm->getVertDataArray);
BLI_dynstr_appendf(dynstr, " ),\n");
BLI_dynstr_appendf(dynstr, " 'loopLayers': (\n");
dm_debug_info_layers(dynstr, dm, DM_get_loop_data_layer);
BLI_dynstr_appendf(dynstr, " ),\n");
BLI_dynstr_appendf(dynstr, " 'edgeLayers': (\n");
dm_debug_info_layers(dynstr, dm, dm->getEdgeDataArray);
BLI_dynstr_appendf(dynstr, " ),\n");
BLI_dynstr_appendf(dynstr, " 'tessFaceLayers': (\n");
dm_debug_info_layers(dynstr, dm, dm->getTessFaceDataArray);
BLI_dynstr_appendf(dynstr, " ),\n");
BLI_dynstr_appendf(dynstr, " 'polyLayers': (\n");
dm_debug_info_layers(dynstr, dm, DM_get_poly_data_layer);
BLI_dynstr_appendf(dynstr, " ),\n");
BLI_dynstr_appendf(dynstr, "}\n");
ret = BLI_dynstr_get_cstring(dynstr);
BLI_dynstr_free(dynstr);
return ret;
}
void DM_debug_print(DerivedMesh *dm)
{
char *str = DM_debug_info(dm);
puts(str);
fflush(stdout);
MEM_freeN(str);
}
void DM_debug_print_cdlayers(CustomData *data)
{
int i;
CustomDataLayer *layer;
printf("{\n");
for (i = 0, layer = data->layers; i < data->totlayer; i++, layer++) {
const char *name = CustomData_layertype_name(layer->type);
const int size = CustomData_sizeof(layer->type);
const char *structname;
int structnum;
CustomData_file_write_info(layer->type, &structname, &structnum);
printf(" dict(name='%s', struct='%s', type=%d, ptr='%p', elem=%d, length=%d),\n",
name, structname, layer->type, (void *)layer->data, size, (int)(MEM_allocN_len(layer->data) / size));
}
printf("}\n");
}
#endif /* NDEBUG */
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