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/* SPDX-License-Identifier: GPL-2.0-or-later */
#pragma once
/** \file
* \ingroup bmesh
*/
struct LinkNode;
struct MemArena;
void BM_loop_interp_multires_ex(BMesh *bm,
BMLoop *l_dst,
const BMFace *f_src,
const float f_dst_center[3],
const float f_src_center[3],
int cd_loop_mdisp_offset);
/**
* Project the multi-resolution grid in target onto f_src's set of multi-resolution grids.
*/
void BM_loop_interp_multires(BMesh *bm, BMLoop *l_dst, const BMFace *f_src);
void BM_face_interp_multires_ex(BMesh *bm,
BMFace *f_dst,
const BMFace *f_src,
const float f_dst_center[3],
const float f_src_center[3],
int cd_loop_mdisp_offset);
void BM_face_interp_multires(BMesh *bm, BMFace *f_dst, const BMFace *f_src);
void BM_vert_interp_from_face(BMesh *bm, BMVert *v_dst, const BMFace *f_src);
/**
* \brief Data, Interpolate From Verts
*
* Interpolates per-vertex data from two sources to \a v_dst
*
* \note This is an exact match to #BM_data_interp_from_edges.
*/
void BM_data_interp_from_verts(
BMesh *bm, const BMVert *v_src_1, const BMVert *v_src_2, BMVert *v_dst, float fac);
/**
* \brief Data, Interpolate From Edges
*
* Interpolates per-edge data from two sources to \a e_dst.
*
* \note This is an exact match to #BM_data_interp_from_verts.
*/
void BM_data_interp_from_edges(
BMesh *bm, const BMEdge *e_src_1, const BMEdge *e_src_2, BMEdge *e_dst, float fac);
/**
* \brief Data Face-Vert Edge Interpolate
*
* Walks around the faces of \a e and interpolates
* the loop data between two sources.
*/
void BM_data_interp_face_vert_edge(
BMesh *bm, const BMVert *v_src_1, const BMVert *v_src_2, BMVert *v, BMEdge *e, float fac);
void BM_data_layer_add(BMesh *bm, CustomData *data, int type);
void BM_data_layer_add_named(BMesh *bm, CustomData *data, int type, const char *name);
void BM_data_layer_free(BMesh *bm, CustomData *data, int type);
void BM_data_layer_free_n(BMesh *bm, CustomData *data, int type, int n);
void BM_data_layer_copy(BMesh *bm, CustomData *data, int type, int src_n, int dst_n);
float BM_elem_float_data_get(CustomData *cd, void *element, int type);
void BM_elem_float_data_set(CustomData *cd, void *element, int type, float val);
/**
* \brief Data Interpolate From Face
*
* Projects target onto source, and pulls interpolated custom-data from source.
*
* \note Only handles loop custom-data. multi-res is handled.
*/
void BM_face_interp_from_face_ex(BMesh *bm,
BMFace *f_dst,
const BMFace *f_src,
bool do_vertex,
const void **blocks,
const void **blocks_v,
float (*cos_2d)[2],
float axis_mat[3][3]);
void BM_face_interp_from_face(BMesh *bm, BMFace *f_dst, const BMFace *f_src, bool do_vertex);
/**
* Projects a single loop, target, onto f_src for custom-data interpolation.
* multi-resolution is handled.
* \param do_vertex: When true the target's vert data will also get interpolated.
*/
void BM_loop_interp_from_face(
BMesh *bm, BMLoop *l_dst, const BMFace *f_src, bool do_vertex, bool do_multires);
/**
* Smooths boundaries between multi-res grids,
* including some borders in adjacent faces.
*/
void BM_face_multires_bounds_smooth(BMesh *bm, BMFace *f);
struct LinkNode *BM_vert_loop_groups_data_layer_create(
BMesh *bm, BMVert *v, int layer_n, const float *loop_weights, struct MemArena *arena);
/**
* Take existing custom data and merge each fan's data.
*/
void BM_vert_loop_groups_data_layer_merge(BMesh *bm, struct LinkNode *groups, int layer_n);
/**
* A version of #BM_vert_loop_groups_data_layer_merge
* that takes an array of loop-weights (aligned with #BM_LOOPS_OF_VERT iterator).
*/
void BM_vert_loop_groups_data_layer_merge_weights(BMesh *bm,
struct LinkNode *groups,
int layer_n,
const float *loop_weights);
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