116 lines
4.1 KiB
C
116 lines
4.1 KiB
C
/*
|
|
* ***** BEGIN GPL LICENSE BLOCK *****
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
* The Original Code is Copyright (C) 2006 by NaN Holding BV.
|
|
* All rights reserved.
|
|
*
|
|
* The Original Code is: all of this file.
|
|
*
|
|
* Contributor(s): Daniel Genrich, Andre Pinto
|
|
*
|
|
* ***** END GPL LICENSE BLOCK *****
|
|
*/
|
|
|
|
|
|
#ifndef BLI_KDOPBVH_H
|
|
#define BLI_KDOPBVH_H
|
|
|
|
/** \file BLI_kdopbvh.h
|
|
* \ingroup bli
|
|
* \author Daniel Genrich
|
|
* \author Andre Pinto
|
|
*/
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <float.h>
|
|
|
|
struct BVHTree;
|
|
typedef struct BVHTree BVHTree;
|
|
|
|
typedef struct BVHTreeOverlap {
|
|
int indexA;
|
|
int indexB;
|
|
} BVHTreeOverlap;
|
|
|
|
typedef struct BVHTreeNearest
|
|
{
|
|
int index; /* the index of the nearest found (untouched if none is found within a dist radius from the given coordinates) */
|
|
float co[3]; /* nearest coordinates (untouched it none is found within a dist radius from the given coordinates) */
|
|
float no[3]; /* normal at nearest coordinates (untouched it none is found within a dist radius from the given coordinates) */
|
|
float dist; /* squared distance to search arround */
|
|
} BVHTreeNearest;
|
|
|
|
typedef struct BVHTreeRay
|
|
{
|
|
float origin[3]; /* ray origin */
|
|
float direction[3]; /* ray direction */
|
|
float radius; /* radius around ray */
|
|
} BVHTreeRay;
|
|
|
|
typedef struct BVHTreeRayHit
|
|
{
|
|
int index; /* index of the tree node (untouched if no hit is found) */
|
|
float co[3]; /* coordinates of the hit point */
|
|
float no[3]; /* normal on hit point */
|
|
float dist; /* distance to the hit point */
|
|
} BVHTreeRayHit;
|
|
|
|
/* callback must update nearest in case it finds a nearest result */
|
|
typedef void (*BVHTree_NearestPointCallback) (void *userdata, int index, const float *co, BVHTreeNearest *nearest);
|
|
|
|
/* callback must update hit in case it finds a nearest successful hit */
|
|
typedef void (*BVHTree_RayCastCallback) (void *userdata, int index, const BVHTreeRay *ray, BVHTreeRayHit *hit);
|
|
|
|
/* callback to range search query */
|
|
typedef void (*BVHTree_RangeQuery) (void *userdata, int index, float squared_dist);
|
|
|
|
BVHTree *BLI_bvhtree_new(int maxsize, float epsilon, char tree_type, char axis);
|
|
void BLI_bvhtree_free(BVHTree *tree);
|
|
|
|
/* construct: first insert points, then call balance */
|
|
int BLI_bvhtree_insert(BVHTree *tree, int index, float *co, int numpoints);
|
|
void BLI_bvhtree_balance(BVHTree *tree);
|
|
|
|
/* update: first update points/nodes, then call update_tree to refit the bounding volumes */
|
|
int BLI_bvhtree_update_node(BVHTree *tree, int index, float *co, float *co_moving, int numpoints);
|
|
void BLI_bvhtree_update_tree(BVHTree *tree);
|
|
|
|
/* collision/overlap: check two trees if they overlap, alloc's *overlap with length of the int return value */
|
|
BVHTreeOverlap *BLI_bvhtree_overlap(BVHTree *tree1, BVHTree *tree2, unsigned int *result);
|
|
|
|
float BLI_bvhtree_getepsilon(BVHTree *tree);
|
|
|
|
/* find nearest node to the given coordinates (if nearest is given it will only search nodes where square distance is smaller than nearest->dist) */
|
|
int BLI_bvhtree_find_nearest(BVHTree *tree, const float *co, BVHTreeNearest *nearest, BVHTree_NearestPointCallback callback, void *userdata);
|
|
|
|
int BLI_bvhtree_ray_cast(BVHTree *tree, const float *co, const float *dir, float radius, BVHTreeRayHit *hit, BVHTree_RayCastCallback callback, void *userdata);
|
|
|
|
float BLI_bvhtree_bb_raycast(float *bv, float *light_start, float *light_end, float *pos);
|
|
|
|
/* range query */
|
|
int BLI_bvhtree_range_query(BVHTree *tree, const float *co, float radius, BVHTree_RangeQuery callback, void *userdata);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif // BLI_KDOPBVH_H
|
|
|