Joseph Eagar
7fca310f25
a new one from scratch, an operation that can be slow despite being threaded. PBVH building is a memory bound operation (not just on the CPU side either, remember the draw buffers have to be fully regenerated too). Incrementally updating it this way is enormously faster (about as fast as non-dyntopo undo). The downside is we don't have the convienience of users regularly building the pbvh from scratch anymore. Dyntopo does try to join empty PBVH nodes (which happens after every stroke), but that's not a complete substitute for a decent tree balancer. That's on the todo list.
137 lines
5.4 KiB
C++
137 lines
5.4 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2005 Blender Foundation.
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* All rights reserved.
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*/
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/** \file
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* \ingroup gpu
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*/
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#pragma once
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#include <stddef.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct BMesh;
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struct CCGElem;
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struct CCGKey;
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struct DMFlagMat;
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struct GSet;
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struct TableGSet;
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struct MLoop;
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struct MLoopCol;
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struct MLoopTri;
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struct MPoly;
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struct MPropCol;
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struct MVert;
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struct Mesh;
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struct PBVH;
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struct SubdivCCG;
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struct CustomData;
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/* Buffers for drawing from PBVH grids. */
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typedef struct GPU_PBVH_Buffers GPU_PBVH_Buffers;
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/* Build must be called once before using the other functions, used every time
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* mesh topology changes. Threaded. */
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GPU_PBVH_Buffers *GPU_pbvh_mesh_buffers_build(const struct MPoly *mpoly,
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const struct MLoop *mloop,
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const struct MLoopTri *looptri,
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const struct MVert *mvert,
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const int *face_indices,
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const int *sculpt_face_sets,
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const int face_indices_len,
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const struct Mesh *mesh);
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GPU_PBVH_Buffers *GPU_pbvh_grid_buffers_build(int totgrid, unsigned int **grid_hidden);
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GPU_PBVH_Buffers *GPU_pbvh_bmesh_buffers_build(bool smooth_shading);
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/* Free part of data for update. Not thread safe, must run in OpenGL main thread. */
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void GPU_pbvh_bmesh_buffers_update_free(GPU_PBVH_Buffers *buffers);
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void GPU_pbvh_grid_buffers_update_free(GPU_PBVH_Buffers *buffers,
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const struct DMFlagMat *grid_flag_mats,
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const int *grid_indices);
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/* Update mesh buffers without topology changes. Threaded. */
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enum {
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GPU_PBVH_BUFFERS_SHOW_MASK = (1 << 1),
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GPU_PBVH_BUFFERS_SHOW_VCOL = (1 << 2),
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GPU_PBVH_BUFFERS_SHOW_SCULPT_FACE_SETS = (1 << 3),
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};
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void GPU_pbvh_mesh_buffers_update(GPU_PBVH_Buffers *buffers,
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const struct MVert *mvert,
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const float *vmask,
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const struct MLoopCol *vcol,
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const int *sculpt_face_sets,
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const int face_sets_color_seed,
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const int face_sets_color_default,
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const struct MPropCol *vtcol,
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const int update_flags);
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/** if active_vcol_only is true, only the active (not render!) layer will
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be uploaded to GPU*/
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void GPU_pbvh_update_attribute_names(struct CustomData *vdata,
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struct CustomData *ldata,
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bool active_vcol_only);
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void GPU_pbvh_bmesh_buffers_update(GPU_PBVH_Buffers *buffers,
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struct BMesh *bm,
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struct TableGSet *bm_faces,
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struct TableGSet *bm_unique_verts,
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struct TableGSet *bm_other_verts,
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struct PBVHTriBuf *tribuf,
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const int update_flags,
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const int cd_vert_node_offset,
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int face_sets_color_seed,
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int face_sets_color_default,
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bool flat_vcol,
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bool active_vcol_only);
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void GPU_pbvh_grid_buffers_update(GPU_PBVH_Buffers *buffers,
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struct SubdivCCG *subdiv_ccg,
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struct CCGElem **grids,
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const struct DMFlagMat *grid_flag_mats,
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int *grid_indices,
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int totgrid,
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const int *sculpt_face_sets,
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const int face_sets_color_seed,
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const int face_sets_color_default,
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const struct CCGKey *key,
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const int update_flags);
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/* Finish update. Not thread safe, must run in OpenGL main thread. */
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void GPU_pbvh_buffers_update_flush(GPU_PBVH_Buffers *buffers);
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/* Free buffers. Not thread safe, must run in OpenGL main thread. */
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void GPU_pbvh_buffers_free(GPU_PBVH_Buffers *buffers);
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/* draw */
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struct GPUBatch *GPU_pbvh_buffers_batch_get(GPU_PBVH_Buffers *buffers, bool fast, bool wires);
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short GPU_pbvh_buffers_material_index_get(GPU_PBVH_Buffers *buffers);
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bool GPU_pbvh_buffers_has_overlays(GPU_PBVH_Buffers *buffers);
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float *GPU_pbvh_get_extra_matrix(GPU_PBVH_Buffers *buffers);
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#ifdef __cplusplus
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}
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#endif
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