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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2001-2002 NaN Holding BV. All rights reserved. */
/** \file
* \ingroup bke
*/
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
struct BMBVHTree;
struct BMEditMesh;
struct BMFace;
struct BMLoop;
struct BMVert;
struct BMesh;
struct BVHTree;
typedef struct BMBVHTree BMBVHTree;
typedef bool (*BMBVHTree_FaceFilter)(struct BMFace *f, void *userdata);
BMBVHTree *BKE_bmbvh_new_from_editmesh(struct BMEditMesh *em,
int flag,
const float (*cos_cage)[3],
bool cos_cage_free);
BMBVHTree *BKE_bmbvh_new_ex(struct BMesh *bm,
struct BMLoop *(*looptris)[3],
int looptris_tot,
int flag,
const float (*cos_cage)[3],
bool cos_cage_free,
bool (*test_fn)(struct BMFace *, void *user_data),
void *user_data);
BMBVHTree *BKE_bmbvh_new(struct BMesh *bm,
struct BMLoop *(*looptris)[3],
int looptris_tot,
int flag,
const float (*cos_cage)[3],
bool cos_cage_free);
void BKE_bmbvh_free(BMBVHTree *tree);
struct BVHTree *BKE_bmbvh_tree_get(BMBVHTree *tree);
struct BMFace *BKE_bmbvh_ray_cast(BMBVHTree *tree,
const float co[3],
const float dir[3],
float radius,
float *r_dist,
float r_hitout[3],
float r_cagehit[3]);
struct BMFace *BKE_bmbvh_ray_cast_filter(BMBVHTree *tree,
const float co[3],
const float dir[3],
float radius,
float *r_dist,
float r_hitout[3],
float r_cagehit[3],
BMBVHTree_FaceFilter filter_cb,
void *filter_userdata);
/**
* Find a vert closest to co in a sphere of radius dist_max.
*/
struct BMVert *BKE_bmbvh_find_vert_closest(BMBVHTree *tree, const float co[3], float dist_max);
struct BMFace *BKE_bmbvh_find_face_closest(BMBVHTree *tree, const float co[3], float dist_max);
/**
* Overlap indices reference the looptri's.
*/
struct BVHTreeOverlap *BKE_bmbvh_overlap(const BMBVHTree *bmtree_a,
const BMBVHTree *bmtree_b,
unsigned int *r_overlap_tot);
/**
* Overlap indices reference the looptri's.
*/
struct BVHTreeOverlap *BKE_bmbvh_overlap_self(const BMBVHTree *bmtree,
unsigned int *r_overlap_tot);
/** #BKE_bmbvh_new flag parameter. */
enum {
/** Use with 'cos_cage', returns hits in relation to original geometry. */
BMBVH_RETURN_ORIG = (1 << 0),
/** Restrict to hidden geometry (overrides BMBVH_RESPECT_HIDDEN). */
BMBVH_RESPECT_SELECT = (1 << 1),
/** Omit hidden geometry. */
BMBVH_RESPECT_HIDDEN = (1 << 2),
};
#ifdef __cplusplus
}
#endif
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