df62deb0a7
The statement that PBVH needs to keep track of CCGDM is wrong, PBVH itself does not care about CCGDM at all, and it's weird for it to carry on this beast so others can access. Even more, nobody will actually caring about CCGDM itself, all the usages were checking whether there is CCGDM or not. This is as good as simply checking PBVH type. Tested with an original report T53551 and everything is still stable.
374 lines
12 KiB
C
374 lines
12 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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* ***** END GPL LICENSE BLOCK *****
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*/
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#ifndef __BKE_PBVH_H__
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#define __BKE_PBVH_H__
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/** \file BKE_pbvh.h
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* \ingroup bke
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* \brief A BVH for high poly meshes.
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*/
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#include "BLI_bitmap.h"
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#include "BLI_ghash.h"
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#include "BLI_utildefines.h"
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struct CCGElem;
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struct CCGKey;
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struct CCGDerivedMesh;
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struct CustomData;
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struct DMFlagMat;
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struct MPoly;
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struct MLoop;
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struct MLoopTri;
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struct MVert;
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struct PBVH;
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struct PBVHNode;
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struct BMesh;
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struct BMLog;
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typedef struct PBVH PBVH;
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typedef struct PBVHNode PBVHNode;
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typedef struct {
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float (*co)[3];
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} PBVHProxyNode;
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/* Callbacks */
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/* returns 1 if the search should continue from this node, 0 otherwise */
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typedef bool (*BKE_pbvh_SearchCallback)(PBVHNode *node, void *data);
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typedef void (*BKE_pbvh_HitCallback)(PBVHNode *node, void *data);
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typedef void (*BKE_pbvh_HitOccludedCallback)(PBVHNode *node, void *data, float *tmin);
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typedef void (*BKE_pbvh_SearchNearestCallback)(PBVHNode *node, void *data, float *tmin);
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/* Building */
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PBVH *BKE_pbvh_new(void);
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void BKE_pbvh_build_mesh(
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PBVH *bvh,
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const struct MPoly *mpoly, const struct MLoop *mloop,
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struct MVert *verts, int totvert, struct CustomData *vdata,
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const struct MLoopTri *looptri, int looptri_num);
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void BKE_pbvh_build_grids(PBVH *bvh, struct CCGElem **grid_elems,
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int totgrid,
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struct CCGKey *key, void **gridfaces, struct DMFlagMat *flagmats,
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unsigned int **grid_hidden);
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void BKE_pbvh_build_bmesh(PBVH *bvh, struct BMesh *bm, bool smooth_shading, struct BMLog *log, const int cd_vert_node_offset, const int cd_face_node_offset);
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void BKE_pbvh_free(PBVH *bvh);
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void BKE_pbvh_free_layer_disp(PBVH *bvh);
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/* Hierarchical Search in the BVH, two methods:
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* - for each hit calling a callback
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* - gather nodes in an array (easy to multithread) */
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void BKE_pbvh_search_callback(PBVH *bvh,
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BKE_pbvh_SearchCallback scb, void *search_data,
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BKE_pbvh_HitCallback hcb, void *hit_data);
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void BKE_pbvh_search_gather(PBVH *bvh,
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BKE_pbvh_SearchCallback scb, void *search_data,
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PBVHNode ***array, int *tot);
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/* Raycast
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* the hit callback is called for all leaf nodes intersecting the ray;
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* it's up to the callback to find the primitive within the leaves that is
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* hit first */
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void BKE_pbvh_raycast(
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PBVH *bvh, BKE_pbvh_HitOccludedCallback cb, void *data,
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const float ray_start[3], const float ray_normal[3],
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bool original);
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bool BKE_pbvh_node_raycast(
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PBVH *bvh, PBVHNode *node, float (*origco)[3], bool use_origco,
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const float ray_start[3], const float ray_normal[3],
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float *depth);
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bool BKE_pbvh_bmesh_node_raycast_detail(
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PBVHNode *node,
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const float ray_start[3], const float ray_normal[3],
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float *depth, float *r_detail);
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/* for orthographic cameras, project the far away ray segment points to the root node so
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* we can have better precision. */
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void BKE_pbvh_raycast_project_ray_root(
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PBVH *bvh, bool original,
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float ray_start[3], float ray_end[3], float ray_normal[3]);
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void BKE_pbvh_find_nearest_to_ray(
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PBVH *bvh, BKE_pbvh_HitOccludedCallback cb, void *data,
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const float ray_start[3], const float ray_normal[3],
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bool original);
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bool BKE_pbvh_node_find_nearest_to_ray(
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PBVH *bvh, PBVHNode *node, float (*origco)[3], bool use_origco,
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const float ray_start[3], const float ray_normal[3],
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float *depth, float *dist_sq);
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/* Drawing */
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void BKE_pbvh_node_draw(PBVHNode *node, void *data);
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void BKE_pbvh_draw(PBVH *bvh, float (*planes)[4], float (*face_nors)[3],
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int (*setMaterial)(int matnr, void *attribs), bool wireframe, bool fast);
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void BKE_pbvh_draw_BB(PBVH *bvh);
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/* PBVH Access */
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typedef enum {
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PBVH_FACES,
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PBVH_GRIDS,
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PBVH_BMESH
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} PBVHType;
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PBVHType BKE_pbvh_type(const PBVH *bvh);
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bool BKE_pbvh_has_faces(const PBVH *bvh);
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/* Get the PBVH root's bounding box */
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void BKE_pbvh_bounding_box(const PBVH *bvh, float min[3], float max[3]);
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/* multires hidden data, only valid for type == PBVH_GRIDS */
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unsigned int **BKE_pbvh_grid_hidden(const PBVH *bvh);
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int BKE_pbvh_count_grid_quads(BLI_bitmap **grid_hidden,
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int *grid_indices, int totgrid,
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int gridsize);
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/* multires level, only valid for type == PBVH_GRIDS */
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void BKE_pbvh_get_grid_key(const PBVH *pbvh, struct CCGKey *key);
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/* Only valid for type == PBVH_BMESH */
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struct BMesh *BKE_pbvh_get_bmesh(PBVH *pbvh);
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void BKE_pbvh_bmesh_detail_size_set(PBVH *pbvh, float detail_size);
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typedef enum {
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PBVH_Subdivide = 1,
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PBVH_Collapse = 2,
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} PBVHTopologyUpdateMode;
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bool BKE_pbvh_bmesh_update_topology(
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PBVH *bvh, PBVHTopologyUpdateMode mode,
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const float center[3], const float view_normal[3],
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float radius, const bool use_frontface, const bool use_projected);
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/* Node Access */
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typedef enum {
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PBVH_Leaf = 1,
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PBVH_UpdateNormals = 2,
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PBVH_UpdateBB = 4,
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PBVH_UpdateOriginalBB = 8,
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PBVH_UpdateDrawBuffers = 16,
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PBVH_UpdateRedraw = 32,
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PBVH_RebuildDrawBuffers = 64,
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PBVH_FullyHidden = 128,
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PBVH_UpdateTopology = 256,
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} PBVHNodeFlags;
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void BKE_pbvh_node_mark_update(PBVHNode *node);
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void BKE_pbvh_node_mark_rebuild_draw(PBVHNode *node);
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void BKE_pbvh_node_mark_redraw(PBVHNode *node);
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void BKE_pbvh_node_mark_normals_update(PBVHNode *node);
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void BKE_pbvh_node_mark_topology_update(PBVHNode *node);
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void BKE_pbvh_node_fully_hidden_set(PBVHNode *node, int fully_hidden);
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void BKE_pbvh_node_get_grids(
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PBVH *bvh, PBVHNode *node,
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int **grid_indices, int *totgrid, int *maxgrid, int *gridsize,
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struct CCGElem ***grid_elems);
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void BKE_pbvh_node_num_verts(
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PBVH *bvh, PBVHNode *node,
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int *r_uniquevert, int *r_totvert);
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void BKE_pbvh_node_get_verts(
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PBVH *bvh, PBVHNode *node,
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const int **r_vert_indices, struct MVert **r_verts);
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void BKE_pbvh_node_get_BB(PBVHNode *node, float bb_min[3], float bb_max[3]);
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void BKE_pbvh_node_get_original_BB(PBVHNode *node, float bb_min[3], float bb_max[3]);
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float BKE_pbvh_node_get_tmin(PBVHNode *node);
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/* test if AABB is at least partially inside the planes' volume */
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bool BKE_pbvh_node_planes_contain_AABB(PBVHNode *node, void *data);
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/* test if AABB is at least partially outside the planes' volume */
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bool BKE_pbvh_node_planes_exclude_AABB(PBVHNode *node, void *data);
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struct GSet *BKE_pbvh_bmesh_node_unique_verts(PBVHNode *node);
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struct GSet *BKE_pbvh_bmesh_node_other_verts(PBVHNode *node);
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struct GSet *BKE_pbvh_bmesh_node_faces(PBVHNode *node);
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void BKE_pbvh_bmesh_node_save_orig(PBVHNode *node);
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void BKE_pbvh_bmesh_after_stroke(PBVH *bvh);
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/* Update Normals/Bounding Box/Draw Buffers/Redraw and clear flags */
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void BKE_pbvh_update(PBVH *bvh, int flags, float (*face_nors)[3]);
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void BKE_pbvh_redraw_BB(PBVH *bvh, float bb_min[3], float bb_max[3]);
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void BKE_pbvh_get_grid_updates(PBVH *bvh, bool clear, void ***r_gridfaces, int *r_totface);
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void BKE_pbvh_grids_update(PBVH *bvh, struct CCGElem **grid_elems,
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void **gridfaces,
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struct DMFlagMat *flagmats, unsigned int **grid_hidden);
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/* Layer displacement */
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/* Get the node's displacement layer, creating it if necessary */
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float *BKE_pbvh_node_layer_disp_get(PBVH *pbvh, PBVHNode *node);
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/* If the node has a displacement layer, free it and set to null */
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void BKE_pbvh_node_layer_disp_free(PBVHNode *node);
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/* vertex deformer */
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float (*BKE_pbvh_get_vertCos(struct PBVH *pbvh))[3];
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void BKE_pbvh_apply_vertCos(struct PBVH *pbvh, float (*vertCos)[3]);
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bool BKE_pbvh_isDeformed(struct PBVH *pbvh);
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/* Vertex Iterator */
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/* this iterator has quite a lot of code, but it's designed to:
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* - allow the compiler to eliminate dead code and variables
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* - spend most of the time in the relatively simple inner loop */
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/* note: PBVH_ITER_ALL does not skip hidden vertices,
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* PBVH_ITER_UNIQUE does */
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#define PBVH_ITER_ALL 0
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#define PBVH_ITER_UNIQUE 1
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typedef struct PBVHVertexIter {
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/* iteration */
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int g;
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int width;
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int height;
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int gx;
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int gy;
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int i;
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/* grid */
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struct CCGElem **grids;
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struct CCGElem *grid;
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struct CCGKey *key;
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BLI_bitmap **grid_hidden, *gh;
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int *grid_indices;
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int totgrid;
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int gridsize;
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/* mesh */
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struct MVert *mverts;
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int totvert;
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const int *vert_indices;
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float *vmask;
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/* bmesh */
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struct GSetIterator bm_unique_verts;
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struct GSetIterator bm_other_verts;
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struct CustomData *bm_vdata;
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int cd_vert_mask_offset;
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/* result: these are all computed in the macro, but we assume
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* that compiler optimization's will skip the ones we don't use */
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struct MVert *mvert;
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struct BMVert *bm_vert;
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float *co;
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short *no;
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float *fno;
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float *mask;
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} PBVHVertexIter;
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void pbvh_vertex_iter_init(PBVH *bvh, PBVHNode *node,
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PBVHVertexIter *vi, int mode);
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#define BKE_pbvh_vertex_iter_begin(bvh, node, vi, mode) \
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pbvh_vertex_iter_init(bvh, node, &vi, mode); \
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\
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for (vi.i = 0, vi.g = 0; vi.g < vi.totgrid; vi.g++) { \
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if (vi.grids) { \
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vi.width = vi.gridsize; \
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vi.height = vi.gridsize; \
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vi.grid = vi.grids[vi.grid_indices[vi.g]]; \
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if (mode == PBVH_ITER_UNIQUE) \
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vi.gh = vi.grid_hidden[vi.grid_indices[vi.g]]; \
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} \
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else { \
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vi.width = vi.totvert; \
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vi.height = 1; \
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} \
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\
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for (vi.gy = 0; vi.gy < vi.height; vi.gy++) { \
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for (vi.gx = 0; vi.gx < vi.width; vi.gx++, vi.i++) { \
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if (vi.grid) { \
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vi.co = CCG_elem_co(vi.key, vi.grid); \
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vi.fno = CCG_elem_no(vi.key, vi.grid); \
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vi.mask = vi.key->has_mask ? CCG_elem_mask(vi.key, vi.grid) : NULL; \
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vi.grid = CCG_elem_next(vi.key, vi.grid); \
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if (vi.gh) { \
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if (BLI_BITMAP_TEST(vi.gh, vi.gy * vi.gridsize + vi.gx)) \
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continue; \
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} \
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} \
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else if (vi.mverts) { \
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vi.mvert = &vi.mverts[vi.vert_indices[vi.gx]]; \
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if (mode == PBVH_ITER_UNIQUE && vi.mvert->flag & ME_HIDE) \
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continue; \
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vi.co = vi.mvert->co; \
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vi.no = vi.mvert->no; \
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if (vi.vmask) \
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vi.mask = &vi.vmask[vi.vert_indices[vi.gx]]; \
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} \
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else { \
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if (!BLI_gsetIterator_done(&vi.bm_unique_verts)) {\
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vi.bm_vert = BLI_gsetIterator_getKey(&vi.bm_unique_verts); \
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BLI_gsetIterator_step(&vi.bm_unique_verts); \
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} \
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else { \
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vi.bm_vert = BLI_gsetIterator_getKey(&vi.bm_other_verts); \
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BLI_gsetIterator_step(&vi.bm_other_verts); \
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} \
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if (mode == PBVH_ITER_UNIQUE && \
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BM_elem_flag_test(vi.bm_vert, BM_ELEM_HIDDEN)) \
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continue; \
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vi.co = vi.bm_vert->co; \
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vi.fno = vi.bm_vert->no; \
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vi.mask = BM_ELEM_CD_GET_VOID_P(vi.bm_vert, vi.cd_vert_mask_offset); \
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}
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#define BKE_pbvh_vertex_iter_end \
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} \
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} \
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}
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void BKE_pbvh_node_get_proxies(PBVHNode *node, PBVHProxyNode **proxies, int *proxy_count);
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void BKE_pbvh_node_free_proxies(PBVHNode *node);
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PBVHProxyNode *BKE_pbvh_node_add_proxy(PBVH *bvh, PBVHNode *node);
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void BKE_pbvh_gather_proxies(PBVH *pbvh, PBVHNode ***nodes, int *totnode);
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void BKE_pbvh_node_get_bm_orco_data(
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PBVHNode *node,
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int (**r_orco_tris)[3], int *r_orco_tris_num, float (**r_orco_coords)[3]);
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bool BKE_pbvh_node_vert_update_check_any(PBVH *bvh, PBVHNode *node);
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//void BKE_pbvh_node_BB_reset(PBVHNode *node);
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//void BKE_pbvh_node_BB_expand(PBVHNode *node, float co[3]);
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void pbvh_show_diffuse_color_set(PBVH *bvh, bool show_diffuse_color);
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void pbvh_show_mask_set(PBVH *bvh, bool show_mask);
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#endif /* __BKE_PBVH_H__ */
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