Hans Goudey
cccf91ff83
As part of #95966, move the `ME_SEAM` flag on mesh edges to a generic boolean attribute, called `.uv_seam`. This is the last bit of extra information stored in mesh edges. After this is committed we can switch to a different type for them and have a 1/3 improvement in memory consumption. It is also now possible to see that a mesh has no UV seams in constant time, and like other similar refactors, interacting with only the UV seams can be done with less memory. The attribute name starts with a `.` to signify that the attribute, like face sets, isn't meant to be used in arbitrary procedural situations (with geometry nodes for example). That gives us more freedom to change things in the future. Pull Request #104728
135 lines
3.1 KiB
C++
135 lines
3.1 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2001-2002 NaN Holding BV. All rights reserved. */
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#pragma once
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/** \file
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* \ingroup bke
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*/
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/* struct DerivedMesh is used directly */
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#include "BKE_DerivedMesh.h"
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/* Thread sync primitives used directly. */
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#include "BLI_threads.h"
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#include "BLI_utildefines.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct CCGEdge;
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struct CCGElem;
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struct CCGFace;
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struct CCGVert;
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struct DMFlagMat;
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struct DerivedMesh;
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struct EdgeHash;
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struct Mesh;
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struct MeshElemMap;
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struct Object;
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struct PBVH;
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struct SubsurfModifierData;
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/**************************** External *****************************/
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typedef enum SubsurfFlags {
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SUBSURF_USE_RENDER_PARAMS = 1,
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SUBSURF_IS_FINAL_CALC = 2,
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SUBSURF_FOR_EDIT_MODE = 4,
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SUBSURF_IN_EDIT_MODE = 8,
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SUBSURF_ALLOC_PAINT_MASK = 16,
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SUBSURF_USE_GPU_BACKEND = 32,
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SUBSURF_IGNORE_SIMPLIFY = 64,
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} SubsurfFlags;
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ENUM_OPERATORS(SubsurfFlags, SUBSURF_IGNORE_SIMPLIFY);
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struct DerivedMesh *subsurf_make_derived_from_derived(struct DerivedMesh *dm,
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struct SubsurfModifierData *smd,
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const struct Scene *scene,
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float (*vertCos)[3],
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SubsurfFlags flags);
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void subsurf_calculate_limit_positions(struct Mesh *me, float (*r_positions)[3]);
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/**
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* Get grid-size from 'level', level must be greater than zero.
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*/
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int BKE_ccg_gridsize(int level);
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/**
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* X/Y grid coordinates at 'low_level' can be multiplied by the result
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* of this function to convert to grid coordinates at 'high_level'.
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*/
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int BKE_ccg_factor(int low_level, int high_level);
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typedef enum MultiresModifiedFlags {
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/* indicates the grids have been sculpted on, so MDisps
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* have to be updated */
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MULTIRES_COORDS_MODIFIED = 1,
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/* indicates elements have been hidden or unhidden */
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MULTIRES_HIDDEN_MODIFIED = 2,
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} MultiresModifiedFlags;
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/**************************** Internal *****************************/
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typedef struct CCGDerivedMesh {
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DerivedMesh dm;
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struct CCGSubSurf *ss;
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int freeSS;
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int drawInteriorEdges, useSubsurfUv;
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struct {
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int startVert;
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struct CCGVert *vert;
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} * vertMap;
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struct {
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int startVert;
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int startEdge;
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struct CCGEdge *edge;
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} * edgeMap;
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struct {
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int startVert;
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int startEdge;
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int startFace;
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struct CCGFace *face;
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} * faceMap;
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struct DMFlagMat *faceFlags;
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int *reverseFaceMap;
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struct PBVH *pbvh;
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struct MeshElemMap *pmap;
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int *pmap_mem;
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struct CCGElem **gridData;
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int *gridOffset;
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struct CCGFace **gridFaces;
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struct DMFlagMat *gridFlagMats;
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unsigned int **gridHidden;
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/* Elements in arrays above. */
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unsigned int numGrid;
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struct {
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struct MultiresModifierData *mmd;
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int local_mmd;
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int lvl, totlvl;
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float (*orco)[3];
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struct Object *ob;
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MultiresModifiedFlags modified_flags;
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} multires;
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struct EdgeHash *ehash;
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ThreadMutex loops_cache_lock;
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ThreadRWMutex origindex_cache_rwlock;
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} CCGDerivedMesh;
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#ifdef __cplusplus
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}
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#endif
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