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struct MFace;
struct MVert;
struct PBVH;
/* Returns 1 if the search should continue from this node, 0 otherwise */
typedef int (*BLI_pbvh_SearchCallback)(float bb_min[3], float bb_max[3],
void *data);
typedef void (*BLI_pbvh_HitCallback)(const int *face_indices,
const int *vert_indices,
int totface, int totvert, void *data);
int BLI_pbvh_search_range(float bb_min[3], float bb_max[3], void *data_v);
typedef enum {
PBVH_SEARCH_NORMAL,
/* When the callback returns a 1 for a leaf node, that node will be
marked as modified */
PBVH_SEARCH_MARK_MODIFIED,
/* Update gpu data for modified nodes. Also clears the Modified flag. */
PBVH_SEARCH_MODIFIED,
PBVH_SEARCH_UPDATE
} PBVH_SearchMode;
/* Pass the node as data to the callback */
#define PBVH_NodeData (void*)0xa
/* Pass the draw buffers as data to the callback */
#define PBVH_DrawData (void*)0xb
void BLI_pbvh_search(struct PBVH *bvh, BLI_pbvh_SearchCallback scb,
void *search_data, BLI_pbvh_HitCallback hcb,
void *hit_data, PBVH_SearchMode mode);
/* The hit callback is called for all leaf nodes intersecting the ray;
it's up to the callback to find the primitive within the leaves that is
hit first */
void BLI_pbvh_raycast(struct PBVH *bvh, BLI_pbvh_HitCallback cb, void *data,
float ray_start[3], float ray_normal[3]);
int BLI_pbvh_update_search_cb(float bb_min[3], float bb_max[3], void *data_v);
/* Get the bounding box around all nodes that have been marked as modified. */
void BLI_pbvh_modified_bounding_box(struct PBVH *bvh,
float bb_min[3], float bb_max[3]);
void BLI_pbvh_reset_modified_bounding_box(struct PBVH *bvh);
/* Lock is off by default, turn on to stop redraw from clearing the modified
flag from nodes */
void BLI_pbvh_toggle_modified_lock(struct PBVH *bvh);
struct PBVH *BLI_pbvh_new(BLI_pbvh_HitCallback update_cb, void *update_cb_data);
void BLI_pbvh_build(struct PBVH *bvh, struct MFace *faces, struct MVert *verts,
int totface, int totvert);
void BLI_pbvh_free(struct PBVH *bvh);
void BLI_pbvh_set_source(struct PBVH *bvh, struct MVert *, struct MFace *mface);
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