838 lines
31 KiB
C
838 lines
31 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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#include "BLI_compiler_attrs.h"
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#include "BLI_compiler_compat.h"
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#include "BLI_utildefines.h"
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#include "DNA_mesh_types.h"
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#include "DNA_meshdata_types.h"
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#include "BKE_customdata.h"
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#include "BKE_mesh_types.h"
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struct BMesh;
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struct BMeshCreateParams;
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struct BMeshFromMeshParams;
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struct BMeshToMeshParams;
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struct BoundBox;
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struct CustomData;
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struct CustomData_MeshMasks;
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struct Depsgraph;
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struct ID;
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struct KeyBlock;
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struct LinkNode;
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struct ListBase;
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struct MDeformVert;
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struct MDisps;
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struct MFace;
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struct MLoopTri;
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struct Main;
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struct MemArena;
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struct Mesh;
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struct Object;
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struct PointCloud;
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struct Scene;
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* mesh_runtime.cc */
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/**
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* Call after changing vertex positions to tag lazily calculated caches for recomputation.
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*/
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void BKE_mesh_tag_positions_changed(struct Mesh *mesh);
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/**
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* Call after moving every mesh vertex by the same translation.
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*/
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void BKE_mesh_tag_positions_changed_uniformly(struct Mesh *mesh);
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void BKE_mesh_tag_topology_changed(struct Mesh *mesh);
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/**
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* Call when new edges and vertices have been created but positions and faces haven't changed.
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*/
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void BKE_mesh_tag_edges_split(struct Mesh *mesh);
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/**
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* Call when face vertex order has changed but positions and faces haven't changed
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*/
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void BKE_mesh_tag_face_winding_changed(struct Mesh *mesh);
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/* *** mesh.c *** */
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struct BMesh *BKE_mesh_to_bmesh_ex(const struct Mesh *me,
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const struct BMeshCreateParams *create_params,
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const struct BMeshFromMeshParams *convert_params);
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struct BMesh *BKE_mesh_to_bmesh(struct Mesh *me,
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struct Object *ob,
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bool add_key_index,
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const struct BMeshCreateParams *params);
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struct Mesh *BKE_mesh_from_bmesh_nomain(struct BMesh *bm,
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const struct BMeshToMeshParams *params,
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const struct Mesh *me_settings);
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struct Mesh *BKE_mesh_from_bmesh_for_eval_nomain(struct BMesh *bm,
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const struct CustomData_MeshMasks *cd_mask_extra,
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const struct Mesh *me_settings);
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/**
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* Add original index (#CD_ORIGINDEX) layers if they don't already exist. This is meant to be used
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* when creating an evaluated mesh from an original edit mode mesh, to allow mapping from the
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* evaluated vertices to the originals.
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*
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* The mesh is expected to of a `ME_WRAPPER_TYPE_MDATA` wrapper type. This is asserted.
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*/
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void BKE_mesh_ensure_default_orig_index_customdata(struct Mesh *mesh);
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/**
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* Same as #BKE_mesh_ensure_default_orig_index_customdata but does not perform any checks: they
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* must be done by the caller.
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*/
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void BKE_mesh_ensure_default_orig_index_customdata_no_check(struct Mesh *mesh);
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#ifdef __cplusplus
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/**
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* Sets each output array element to the edge index if it is a real edge, or -1.
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*/
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void BKE_mesh_looptri_get_real_edges(const blender::int2 *edges,
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const int *corner_verts,
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const int *corner_edges,
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const struct MLoopTri *tri,
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int r_edges[3]);
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#endif
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/**
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* Free (or release) any data used by this mesh (does not free the mesh itself).
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* Only use for undo, in most cases `BKE_id_free(nullptr, me)` should be used.
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*/
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void BKE_mesh_free_data_for_undo(struct Mesh *me);
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/**
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* Remove all geometry and derived data like caches from the mesh.
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*/
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void BKE_mesh_clear_geometry(struct Mesh *me);
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/**
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* Same as #BKE_mesh_clear_geometry, but also clears attribute meta-data like active attribute
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* names and vertex group names. Used when the geometry is *entirely* replaced.
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*/
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void BKE_mesh_clear_geometry_and_metadata(struct Mesh *me);
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struct Mesh *BKE_mesh_add(struct Main *bmain, const char *name);
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void BKE_mesh_free_editmesh(struct Mesh *mesh);
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/**
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* A version of #BKE_mesh_copy_parameters that is intended for evaluated output
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* (the modifier stack for example).
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*
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* \warning User counts are not handled for ID's.
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*/
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void BKE_mesh_copy_parameters_for_eval(struct Mesh *me_dst, const struct Mesh *me_src);
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/**
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* Copy user editable settings that we want to preserve
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* when a new mesh is based on an existing mesh.
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*/
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void BKE_mesh_copy_parameters(struct Mesh *me_dst, const struct Mesh *me_src);
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void BKE_mesh_ensure_skin_customdata(struct Mesh *me);
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/** Add poly offsets to describe faces to a new mesh. */
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void BKE_mesh_poly_offsets_ensure_alloc(struct Mesh *mesh);
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struct Mesh *BKE_mesh_new_nomain(int verts_num, int edges_num, int polys_num, int loops_num);
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struct Mesh *BKE_mesh_new_nomain_from_template(
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const struct Mesh *me_src, int verts_num, int edges_num, int polys_num, int loops_num);
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struct Mesh *BKE_mesh_new_nomain_from_template_ex(const struct Mesh *me_src,
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int verts_num,
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int edges_num,
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int tessface_num,
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int polys_num,
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int loops_num,
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struct CustomData_MeshMasks mask);
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void BKE_mesh_eval_delete(struct Mesh *mesh_eval);
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/**
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* Performs copy for use during evaluation,
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* optional referencing original arrays to reduce memory.
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*/
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struct Mesh *BKE_mesh_copy_for_eval(const struct Mesh *source);
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/**
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* These functions construct a new Mesh,
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* contrary to #BKE_mesh_to_curve_nurblist which modifies ob itself.
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*/
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struct Mesh *BKE_mesh_new_nomain_from_curve(const struct Object *ob);
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struct Mesh *BKE_mesh_new_nomain_from_curve_displist(const struct Object *ob,
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const struct ListBase *dispbase);
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bool BKE_mesh_attribute_required(const char *name);
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bool BKE_mesh_ensure_facemap_customdata(struct Mesh *me);
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bool BKE_mesh_clear_facemap_customdata(struct Mesh *me);
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float (*BKE_mesh_orco_verts_get(struct Object *ob))[3];
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void BKE_mesh_orco_verts_transform(struct Mesh *me, float (*orco)[3], int totvert, int invert);
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/**
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* Add a #CD_ORCO layer to the Mesh if there is none already.
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*/
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void BKE_mesh_orco_ensure(struct Object *ob, struct Mesh *mesh);
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struct Mesh *BKE_mesh_from_object(struct Object *ob);
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void BKE_mesh_assign_object(struct Main *bmain, struct Object *ob, struct Mesh *me);
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void BKE_mesh_to_curve_nurblist(const struct Mesh *me,
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struct ListBase *nurblist,
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int edge_users_test);
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void BKE_mesh_to_curve(struct Main *bmain,
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struct Depsgraph *depsgraph,
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struct Scene *scene,
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struct Object *ob);
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void BKE_pointcloud_from_mesh(const struct Mesh *me, struct PointCloud *pointcloud);
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void BKE_mesh_to_pointcloud(struct Main *bmain,
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struct Depsgraph *depsgraph,
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struct Scene *scene,
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struct Object *ob);
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void BKE_mesh_from_pointcloud(const struct PointCloud *pointcloud, struct Mesh *me);
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void BKE_pointcloud_to_mesh(struct Main *bmain,
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struct Depsgraph *depsgraph,
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struct Scene *scene,
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struct Object *ob);
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void BKE_mesh_material_index_remove(struct Mesh *me, short index);
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bool BKE_mesh_material_index_used(struct Mesh *me, short index);
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void BKE_mesh_material_index_clear(struct Mesh *me);
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void BKE_mesh_material_remap(struct Mesh *me, const unsigned int *remap, unsigned int remap_len);
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void BKE_mesh_smooth_flag_set(struct Mesh *me, bool use_smooth);
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void BKE_mesh_auto_smooth_flag_set(struct Mesh *me, bool use_auto_smooth, float auto_smooth_angle);
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/**
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* Used for unit testing; compares two meshes, checking only
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* differences we care about. should be usable with leaf's
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* testing framework I get RNA work done, will use hackish
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* testing code for now.
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*/
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const char *BKE_mesh_cmp(struct Mesh *me1, struct Mesh *me2, float thresh);
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struct BoundBox *BKE_mesh_boundbox_get(struct Object *ob);
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void BKE_mesh_texspace_calc(struct Mesh *me);
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void BKE_mesh_texspace_ensure(struct Mesh *me);
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void BKE_mesh_texspace_get(struct Mesh *me,
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float r_texspace_location[3],
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float r_texspace_size[3]);
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void BKE_mesh_texspace_get_reference(struct Mesh *me,
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char **r_texspace_flag,
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float **r_texspace_location,
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float **r_texspace_size);
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void BKE_mesh_texspace_copy_from_object(struct Mesh *me, struct Object *ob);
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/**
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* Create new mesh from the given object at its current state.
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* The owner of this mesh is unknown, it is up to the caller to decide.
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*
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* If preserve_all_data_layers is truth then the modifier stack is re-evaluated to ensure it
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* preserves all possible custom data layers.
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*
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* \note Dependency graph argument is required when preserve_all_data_layers is truth, and is
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* ignored otherwise.
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*/
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struct Mesh *BKE_mesh_new_from_object(struct Depsgraph *depsgraph,
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struct Object *object,
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bool preserve_all_data_layers,
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bool preserve_origindex);
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/**
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* This is a version of BKE_mesh_new_from_object() which stores mesh in the given main database.
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* However, that function enforces object type to be a geometry one, and ensures a mesh is always
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* generated, be it empty.
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*/
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struct Mesh *BKE_mesh_new_from_object_to_bmain(struct Main *bmain,
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struct Depsgraph *depsgraph,
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struct Object *object,
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bool preserve_all_data_layers);
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/**
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* Move data from a mesh outside of the main data-base into a mesh in the data-base.
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* Takes ownership of the source mesh.
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*/
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void BKE_mesh_nomain_to_mesh(struct Mesh *mesh_src, struct Mesh *mesh_dst, struct Object *ob);
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void BKE_mesh_nomain_to_meshkey(struct Mesh *mesh_src, struct Mesh *mesh_dst, struct KeyBlock *kb);
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/* vertex level transformations & checks (no derived mesh) */
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/* basic vertex data functions */
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bool BKE_mesh_minmax(const struct Mesh *me, float r_min[3], float r_max[3]);
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void BKE_mesh_transform(struct Mesh *me, const float mat[4][4], bool do_keys);
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void BKE_mesh_translate(struct Mesh *me, const float offset[3], bool do_keys);
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void BKE_mesh_tessface_clear(struct Mesh *mesh);
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void BKE_mesh_mselect_clear(struct Mesh *me);
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void BKE_mesh_mselect_validate(struct Mesh *me);
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/**
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* \return the index within `me->mselect`, or -1
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*/
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int BKE_mesh_mselect_find(struct Mesh *me, int index, int type);
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/**
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* \return The index of the active element.
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*/
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int BKE_mesh_mselect_active_get(struct Mesh *me, int type);
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void BKE_mesh_mselect_active_set(struct Mesh *me, int index, int type);
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void BKE_mesh_count_selected_items(const struct Mesh *mesh, int r_count[3]);
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float (*BKE_mesh_vert_coords_alloc(const struct Mesh *mesh, int *r_vert_len))[3];
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void BKE_mesh_vert_coords_get(const struct Mesh *mesh, float (*vert_coords)[3]);
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void BKE_mesh_vert_coords_apply_with_mat4(struct Mesh *mesh,
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const float (*vert_coords)[3],
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const float mat[4][4]);
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void BKE_mesh_vert_coords_apply(struct Mesh *mesh, const float (*vert_coords)[3]);
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/* *** mesh_tessellate.cc *** */
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/**
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* Calculate tessellation into #MLoopTri which exist only for this purpose.
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*/
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void BKE_mesh_recalc_looptri(const int *corner_verts,
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const int *poly_offsets,
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const float (*vert_positions)[3],
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int totvert,
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int totloop,
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int totpoly,
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struct MLoopTri *mlooptri);
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/* *** mesh_normals.cc *** */
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/**
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* See #Mesh::vert_normals().
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* \warning May return null if the mesh is empty.
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*/
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const float (*BKE_mesh_vert_normals_ensure(const struct Mesh *mesh))[3];
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/**
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* See #Mesh::poly_normals().
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* \warning May return null if the mesh is empty or has no polygons.
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*/
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const float (*BKE_mesh_poly_normals_ensure(const struct Mesh *mesh))[3];
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/**
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* Retrieve write access to the cached vertex normals, ensuring that they are allocated but *not*
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* that they are calculated. The provided vertex normals should be the same as if they were
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* calculated automatically.
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*
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* \note In order to clear the dirty flag, this function should be followed by a call to
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* #BKE_mesh_vert_normals_clear_dirty. This is separate so that normals are still tagged dirty
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* while they are being assigned.
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*
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* \warning The memory returned by this function is not initialized if it was not previously
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* allocated.
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*/
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float (*BKE_mesh_vert_normals_for_write(struct Mesh *mesh))[3];
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/**
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* Mark the mesh's vertex normals non-dirty, for when they are calculated or assigned manually.
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*/
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void BKE_mesh_vert_normals_clear_dirty(struct Mesh *mesh);
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/**
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* Return true if the mesh vertex normals either are not stored or are dirty.
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* This can be used to help decide whether to transfer them when copying a mesh.
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*/
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bool BKE_mesh_vert_normals_are_dirty(const struct Mesh *mesh);
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/**
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* Return true if the mesh polygon normals either are not stored or are dirty.
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* This can be used to help decide whether to transfer them when copying a mesh.
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*/
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bool BKE_mesh_poly_normals_are_dirty(const struct Mesh *mesh);
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void BKE_mesh_calc_poly_normal(const int *poly_verts,
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int poly_size,
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const float (*vert_positions)[3],
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int verts_num,
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float r_no[3]);
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/**
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* Called after calculating all modifiers.
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*/
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void BKE_mesh_ensure_normals_for_display(struct Mesh *mesh);
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/**
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* References a contiguous loop-fan with normal offset vars.
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*/
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typedef struct MLoopNorSpace {
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/** Automatically computed loop normal. */
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float vec_lnor[3];
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/** Reference vector, orthogonal to vec_lnor. */
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float vec_ref[3];
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/** Third vector, orthogonal to vec_lnor and vec_ref. */
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float vec_ortho[3];
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/** Reference angle, around vec_ortho, in ]0, pi] range (0.0 marks that space as invalid). */
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float ref_alpha;
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/** Reference angle, around vec_lnor, in ]0, 2pi] range (0.0 marks that space as invalid). */
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float ref_beta;
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/** All loops using this lnor space (i.e. smooth fan of loops),
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* as (depending on owning MLoopNorSpaceArrary.data_type):
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* - Indices (uint_in_ptr), or
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* - BMLoop pointers. */
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struct LinkNode *loops;
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char flags;
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} MLoopNorSpace;
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/**
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* MLoopNorSpace.flags
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*/
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enum {
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MLNOR_SPACE_IS_SINGLE = 1 << 0,
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};
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/**
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* Collection of #MLoopNorSpace basic storage & pre-allocation.
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*/
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typedef struct MLoopNorSpaceArray {
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MLoopNorSpace **lspacearr; /* Face corner aligned array */
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struct LinkNode
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*loops_pool; /* Allocated once, avoids to call BLI_linklist_prepend_arena() for each loop! */
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char data_type; /* Whether we store loop indices, or pointers to BMLoop. */
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int spaces_num; /* Number of clnors spaces defined in this array. */
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struct MemArena *mem;
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} MLoopNorSpaceArray;
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/**
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* MLoopNorSpaceArray.data_type
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*/
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enum {
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MLNOR_SPACEARR_LOOP_INDEX = 0,
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MLNOR_SPACEARR_BMLOOP_PTR = 1,
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};
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/* Low-level custom normals functions. */
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void BKE_lnor_spacearr_init(MLoopNorSpaceArray *lnors_spacearr, int numLoops, char data_type);
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void BKE_lnor_spacearr_clear(MLoopNorSpaceArray *lnors_spacearr);
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void BKE_lnor_spacearr_free(MLoopNorSpaceArray *lnors_spacearr);
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/**
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* Utility for multi-threaded calculation that ensures
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* `lnors_spacearr_tls` doesn't share memory with `lnors_spacearr`
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* that would cause it not to be thread safe.
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*
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* \note This works as long as threads never operate on the same loops at once.
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*/
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void BKE_lnor_spacearr_tls_init(MLoopNorSpaceArray *lnors_spacearr,
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MLoopNorSpaceArray *lnors_spacearr_tls);
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/**
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* Utility for multi-threaded calculation
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* that merges `lnors_spacearr_tls` into `lnors_spacearr`.
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*/
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void BKE_lnor_spacearr_tls_join(MLoopNorSpaceArray *lnors_spacearr,
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MLoopNorSpaceArray *lnors_spacearr_tls);
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MLoopNorSpace *BKE_lnor_space_create(MLoopNorSpaceArray *lnors_spacearr);
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#ifdef __cplusplus
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/**
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* Should only be called once.
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* Beware, this modifies ref_vec and other_vec in place!
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* In case no valid space can be generated, ref_alpha and ref_beta are set to zero
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* (which means 'use auto lnors').
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*/
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void BKE_lnor_space_define(MLoopNorSpace *lnor_space,
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const float lnor[3],
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float vec_ref[3],
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float vec_other[3],
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blender::Span<blender::float3> edge_vectors);
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#endif
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/**
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* Add a new given loop to given lnor_space.
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* Depending on \a lnor_space->data_type, we expect \a bm_loop to be a pointer to BMLoop struct
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* (in case of BMLOOP_PTR), or nullptr (in case of LOOP_INDEX), loop index is then stored in
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* pointer. If \a is_single is set, the BMLoop or loop index is directly stored in \a
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* lnor_space->loops pointer (since there is only one loop in this fan), else it is added to the
|
|
* linked list of loops in the fan.
|
|
*/
|
|
void BKE_lnor_space_add_loop(MLoopNorSpaceArray *lnors_spacearr,
|
|
MLoopNorSpace *lnor_space,
|
|
int ml_index,
|
|
void *bm_loop,
|
|
bool is_single);
|
|
void BKE_lnor_space_custom_data_to_normal(const MLoopNorSpace *lnor_space,
|
|
const short clnor_data[2],
|
|
float r_custom_lnor[3]);
|
|
void BKE_lnor_space_custom_normal_to_data(const MLoopNorSpace *lnor_space,
|
|
const float custom_lnor[3],
|
|
short r_clnor_data[2]);
|
|
|
|
/**
|
|
* Computes average per-vertex normals from given custom loop normals.
|
|
*
|
|
* \param clnors: The computed custom loop normals.
|
|
* \param r_vert_clnors: The (already allocated) array where to store averaged per-vertex normals.
|
|
*/
|
|
void BKE_mesh_normals_loop_to_vertex(int numVerts,
|
|
const int *corner_verts,
|
|
int numLoops,
|
|
const float (*clnors)[3],
|
|
float (*r_vert_clnors)[3]);
|
|
|
|
/**
|
|
* High-level custom normals functions.
|
|
*/
|
|
bool BKE_mesh_has_custom_loop_normals(struct Mesh *me);
|
|
|
|
void BKE_mesh_calc_normals_split(struct Mesh *mesh);
|
|
/**
|
|
* Compute 'split' (aka loop, or per face corner's) normals.
|
|
*
|
|
* \param r_lnors_spacearr: Allows to get computed loop normal space array.
|
|
* That data, among other things, contains 'smooth fan' info, useful e.g.
|
|
* to split geometry along sharp edges.
|
|
*/
|
|
void BKE_mesh_calc_normals_split_ex(struct Mesh *mesh,
|
|
struct MLoopNorSpaceArray *r_lnors_spacearr,
|
|
float (*r_corner_normals)[3]);
|
|
|
|
/**
|
|
* Higher level functions hiding most of the code needed around call to
|
|
* #normals_loop_custom_set().
|
|
*
|
|
* \param r_custom_loop_normals: is not const, since code will replace zero_v3 normals there
|
|
* with automatically computed vectors.
|
|
*/
|
|
void BKE_mesh_set_custom_normals(struct Mesh *mesh, float (*r_custom_loop_normals)[3]);
|
|
/**
|
|
* Higher level functions hiding most of the code needed around call to
|
|
* #normals_loop_custom_set_from_verts().
|
|
*
|
|
* \param r_custom_vert_normals: is not const, since code will replace zero_v3 normals there
|
|
* with automatically computed vectors.
|
|
*/
|
|
void BKE_mesh_set_custom_normals_from_verts(struct Mesh *mesh, float (*r_custom_vert_normals)[3]);
|
|
|
|
/* *** mesh_evaluate.cc *** */
|
|
|
|
void BKE_mesh_calc_poly_center(const int *poly_verts,
|
|
int poly_size,
|
|
const float (*vert_positions)[3],
|
|
int verts_num,
|
|
float r_cent[3]);
|
|
float BKE_mesh_calc_poly_area(const int *poly_verts,
|
|
int poly_size,
|
|
const float (*vert_positions)[3],
|
|
int verts_num);
|
|
float BKE_mesh_calc_area(const struct Mesh *me);
|
|
|
|
bool BKE_mesh_center_median(const struct Mesh *me, float r_cent[3]);
|
|
/**
|
|
* Calculate the center from polygons,
|
|
* use when we want to ignore vertex locations that don't have connected faces.
|
|
*/
|
|
bool BKE_mesh_center_median_from_polys(const struct Mesh *me, float r_cent[3]);
|
|
bool BKE_mesh_center_bounds(const struct Mesh *me, float r_cent[3]);
|
|
bool BKE_mesh_center_of_surface(const struct Mesh *me, float r_cent[3]);
|
|
/**
|
|
* \note Mesh must be manifold with consistent face-winding,
|
|
* see #mesh_calc_poly_volume_centroid for details.
|
|
*/
|
|
bool BKE_mesh_center_of_volume(const struct Mesh *me, float r_cent[3]);
|
|
|
|
/**
|
|
* Calculate the volume and center.
|
|
*
|
|
* \param r_volume: Volume (unsigned).
|
|
* \param r_center: Center of mass.
|
|
*/
|
|
void BKE_mesh_calc_volume(const float (*vert_positions)[3],
|
|
int mverts_num,
|
|
const struct MLoopTri *mlooptri,
|
|
int looptri_num,
|
|
const int *corner_verts,
|
|
float *r_volume,
|
|
float r_center[3]);
|
|
|
|
/**
|
|
* Flip a single corner's #MDisps structure,
|
|
* low level function to be called from face-flipping code which re-arranged the mdisps themselves.
|
|
*/
|
|
void BKE_mesh_mdisp_flip(struct MDisps *md, bool use_loop_mdisp_flip);
|
|
|
|
/**
|
|
* Flip (invert winding of) the given \a poly, i.e. reverse order of its loops
|
|
* (keeping the same vertex as 'start point').
|
|
*
|
|
* \param poly: the polygon to flip.
|
|
* \param mloop: the full loops array.
|
|
* \param ldata: the loops custom data.
|
|
*/
|
|
void BKE_mesh_polygon_flip_ex(int poly_offset,
|
|
int poly_size,
|
|
int *corner_verts,
|
|
int *corner_edges,
|
|
struct CustomData *ldata,
|
|
float (*lnors)[3],
|
|
struct MDisps *mdisp,
|
|
bool use_loop_mdisp_flip);
|
|
void BKE_mesh_polygon_flip(int poly_offset,
|
|
int poly_size,
|
|
int *corner_verts,
|
|
int *corner_edges,
|
|
struct CustomData *ldata,
|
|
int totloop);
|
|
|
|
/**
|
|
* Flip (invert winding of) all polygons (used to inverse their normals).
|
|
*
|
|
* \note Invalidates tessellation, caller must handle that.
|
|
*/
|
|
void BKE_mesh_polys_flip(const int *poly_offsets,
|
|
int *corner_verts,
|
|
int *corner_edges,
|
|
struct CustomData *ldata,
|
|
int totpoly);
|
|
|
|
/**
|
|
* Account for custom-data such as UVs becoming detached because of imprecision
|
|
* in custom-data interpolation.
|
|
* Without running this operation subdivision surface can cause UVs to be disconnected,
|
|
* see: #81065.
|
|
*/
|
|
void BKE_mesh_merge_customdata_for_apply_modifier(struct Mesh *me);
|
|
|
|
/* Flush flags. */
|
|
|
|
/**
|
|
* Update the hide flag for edges and faces from the corresponding flag in verts.
|
|
*/
|
|
void BKE_mesh_flush_hidden_from_verts(struct Mesh *me);
|
|
void BKE_mesh_flush_hidden_from_polys(struct Mesh *me);
|
|
|
|
void BKE_mesh_flush_select_from_polys(struct Mesh *me);
|
|
void BKE_mesh_flush_select_from_verts(struct Mesh *me);
|
|
|
|
/* spatial evaluation */
|
|
/**
|
|
* This function takes the difference between 2 vertex-coord-arrays
|
|
* (\a vert_cos_src, \a vert_cos_dst),
|
|
* and applies the difference to \a vert_cos_new relative to \a vert_cos_org.
|
|
*
|
|
* \param vert_cos_src: reference deform source.
|
|
* \param vert_cos_dst: reference deform destination.
|
|
*
|
|
* \param vert_cos_org: reference for the output location.
|
|
* \param vert_cos_new: resulting coords.
|
|
*/
|
|
void BKE_mesh_calc_relative_deform(const int *poly_offsets,
|
|
int totpoly,
|
|
const int *corner_verts,
|
|
int totvert,
|
|
|
|
const float (*vert_cos_src)[3],
|
|
const float (*vert_cos_dst)[3],
|
|
|
|
const float (*vert_cos_org)[3],
|
|
float (*vert_cos_new)[3]);
|
|
|
|
/* *** mesh_validate.cc *** */
|
|
|
|
/**
|
|
* Validates and corrects a Mesh.
|
|
*
|
|
* \returns true if a change is made.
|
|
*/
|
|
bool BKE_mesh_validate(struct Mesh *me, bool do_verbose, bool cddata_check_mask);
|
|
/**
|
|
* Checks if a Mesh is valid without any modification. This is always verbose.
|
|
* \returns True if the mesh is valid.
|
|
*/
|
|
bool BKE_mesh_is_valid(struct Mesh *me);
|
|
/**
|
|
* Check all material indices of polygons are valid, invalid ones are set to 0.
|
|
* \returns True if the material indices are valid.
|
|
*/
|
|
bool BKE_mesh_validate_material_indices(struct Mesh *me);
|
|
|
|
#ifdef __cplusplus
|
|
|
|
/**
|
|
* Validate the mesh, \a do_fixes requires \a mesh to be non-null.
|
|
*
|
|
* \return false if no changes needed to be made.
|
|
*
|
|
* Vertex Normals
|
|
* ==============
|
|
*
|
|
* While zeroed normals are checked, these checks aren't comprehensive.
|
|
* Technically, to detect errors here a normal recalculation and comparison is necessary.
|
|
* However this function is mainly to prevent severe errors in geometry
|
|
* (invalid data that will crash Blender, or cause some features to behave incorrectly),
|
|
* not to detect subtle differences in the resulting normals which could be caused
|
|
* by importers that load normals (for example).
|
|
*/
|
|
bool BKE_mesh_validate_arrays(struct Mesh *me,
|
|
float (*vert_positions)[3],
|
|
unsigned int totvert,
|
|
blender::int2 *edges,
|
|
unsigned int totedge,
|
|
struct MFace *mfaces,
|
|
unsigned int totface,
|
|
int *corner_verts,
|
|
int *corner_edges,
|
|
unsigned int totloop,
|
|
int *poly_offsets,
|
|
unsigned int totpoly,
|
|
struct MDeformVert *dverts, /* assume totvert length */
|
|
bool do_verbose,
|
|
bool do_fixes,
|
|
bool *r_change);
|
|
|
|
#endif
|
|
|
|
/**
|
|
* \returns is_valid.
|
|
*/
|
|
bool BKE_mesh_validate_all_customdata(struct CustomData *vdata,
|
|
uint totvert,
|
|
struct CustomData *edata,
|
|
uint totedge,
|
|
struct CustomData *ldata,
|
|
uint totloop,
|
|
struct CustomData *pdata,
|
|
uint totpoly,
|
|
bool check_meshmask,
|
|
bool do_verbose,
|
|
bool do_fixes,
|
|
bool *r_change);
|
|
|
|
void BKE_mesh_strip_loose_faces(struct Mesh *me);
|
|
|
|
/**
|
|
* Calculate edges from polygons.
|
|
*/
|
|
void BKE_mesh_calc_edges(struct Mesh *mesh, bool keep_existing_edges, bool select_new_edges);
|
|
/**
|
|
* Calculate/create edges from tessface data
|
|
*
|
|
* \param mesh: The mesh to add edges into
|
|
*/
|
|
void BKE_mesh_calc_edges_tessface(struct Mesh *mesh);
|
|
|
|
/* In DerivedMesh.cc */
|
|
void BKE_mesh_wrapper_deferred_finalize_mdata(struct Mesh *me_eval,
|
|
const struct CustomData_MeshMasks *cd_mask_finalize);
|
|
|
|
/* **** Depsgraph evaluation **** */
|
|
|
|
void BKE_mesh_eval_geometry(struct Depsgraph *depsgraph, struct Mesh *mesh);
|
|
|
|
/* Draw Cache */
|
|
void BKE_mesh_batch_cache_dirty_tag(struct Mesh *me, eMeshBatchDirtyMode mode);
|
|
void BKE_mesh_batch_cache_free(void *batch_cache);
|
|
|
|
extern void (*BKE_mesh_batch_cache_dirty_tag_cb)(struct Mesh *me, eMeshBatchDirtyMode mode);
|
|
extern void (*BKE_mesh_batch_cache_free_cb)(void *batch_cache);
|
|
|
|
/* mesh_debug.c */
|
|
|
|
#ifndef NDEBUG
|
|
char *BKE_mesh_debug_info(const struct Mesh *me)
|
|
ATTR_NONNULL(1) ATTR_MALLOC ATTR_WARN_UNUSED_RESULT;
|
|
void BKE_mesh_debug_print(const struct Mesh *me) ATTR_NONNULL(1);
|
|
#endif
|
|
|
|
/* -------------------------------------------------------------------- */
|
|
/** \name Inline Mesh Data Access
|
|
* \{ */
|
|
|
|
/**
|
|
* \return The material index for each polygon. May be null.
|
|
* \note In C++ code, prefer using the attribute API (#AttributeAccessor).
|
|
*/
|
|
BLI_INLINE const int *BKE_mesh_material_indices(const Mesh *mesh)
|
|
{
|
|
return (const int *)CustomData_get_layer_named(&mesh->pdata, CD_PROP_INT32, "material_index");
|
|
}
|
|
|
|
/**
|
|
* \return The material index for each polygon. Create the layer if it doesn't exist.
|
|
* \note In C++ code, prefer using the attribute API (#MutableAttributeAccessor).
|
|
*/
|
|
BLI_INLINE int *BKE_mesh_material_indices_for_write(Mesh *mesh)
|
|
{
|
|
int *indices = (int *)CustomData_get_layer_named_for_write(
|
|
&mesh->pdata, CD_PROP_INT32, "material_index", mesh->totpoly);
|
|
if (indices) {
|
|
return indices;
|
|
}
|
|
return (int *)CustomData_add_layer_named(
|
|
&mesh->pdata, CD_PROP_INT32, CD_SET_DEFAULT, mesh->totpoly, "material_index");
|
|
}
|
|
|
|
BLI_INLINE const float (*BKE_mesh_vert_positions(const Mesh *mesh))[3]
|
|
{
|
|
return (const float(*)[3])CustomData_get_layer_named(&mesh->vdata, CD_PROP_FLOAT3, "position");
|
|
}
|
|
BLI_INLINE float (*BKE_mesh_vert_positions_for_write(Mesh *mesh))[3]
|
|
{
|
|
return (float(*)[3])CustomData_get_layer_named_for_write(
|
|
&mesh->vdata, CD_PROP_FLOAT3, "position", mesh->totvert);
|
|
}
|
|
|
|
BLI_INLINE const int *BKE_mesh_poly_offsets(const Mesh *mesh)
|
|
{
|
|
return mesh->poly_offset_indices;
|
|
}
|
|
int *BKE_mesh_poly_offsets_for_write(Mesh *mesh);
|
|
|
|
BLI_INLINE const int *BKE_mesh_corner_verts(const Mesh *mesh)
|
|
{
|
|
return (const int *)CustomData_get_layer_named(&mesh->ldata, CD_PROP_INT32, ".corner_vert");
|
|
}
|
|
BLI_INLINE int *BKE_mesh_corner_verts_for_write(Mesh *mesh)
|
|
{
|
|
return (int *)CustomData_get_layer_named_for_write(
|
|
&mesh->ldata, CD_PROP_INT32, ".corner_vert", mesh->totloop);
|
|
}
|
|
|
|
BLI_INLINE const int *BKE_mesh_corner_edges(const Mesh *mesh)
|
|
{
|
|
return (const int *)CustomData_get_layer_named(&mesh->ldata, CD_PROP_INT32, ".corner_edge");
|
|
}
|
|
BLI_INLINE int *BKE_mesh_corner_edges_for_write(Mesh *mesh)
|
|
{
|
|
return (int *)CustomData_get_layer_named_for_write(
|
|
&mesh->ldata, CD_PROP_INT32, ".corner_edge", mesh->totloop);
|
|
}
|
|
|
|
BLI_INLINE const MDeformVert *BKE_mesh_deform_verts(const Mesh *mesh)
|
|
{
|
|
return (const MDeformVert *)CustomData_get_layer(&mesh->vdata, CD_MDEFORMVERT);
|
|
}
|
|
BLI_INLINE MDeformVert *BKE_mesh_deform_verts_for_write(Mesh *mesh)
|
|
{
|
|
MDeformVert *dvert = (MDeformVert *)CustomData_get_layer_for_write(
|
|
&mesh->vdata, CD_MDEFORMVERT, mesh->totvert);
|
|
if (dvert) {
|
|
return dvert;
|
|
}
|
|
return (MDeformVert *)CustomData_add_layer(
|
|
&mesh->vdata, CD_MDEFORMVERT, CD_SET_DEFAULT, mesh->totvert);
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
/** \} */
|