4d39a0f8eb
This node calculates a distance from each point to the closest position on a target geometry, similar to the vertex weight proximity modifier. Mapping the output distance to a different range can be done with an attribute math node after this node. A drop-down changes whether to calculate distances from points, edges, or faces. In points mode, the node also calculates distances from point cloud points. Design task and use cases: T84842 Differential Revision: https://developer.blender.org/D10154
280 lines
11 KiB
C++
280 lines
11 KiB
C++
/*
|
|
* 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.
|
|
*/
|
|
#pragma once
|
|
|
|
/** \file
|
|
* \ingroup bke
|
|
*/
|
|
|
|
#include "BLI_bitmap.h"
|
|
#include "BLI_kdopbvh.h"
|
|
#include "BLI_threads.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* This header encapsulates necessary code to build a BVH
|
|
*/
|
|
|
|
struct BMEditMesh;
|
|
struct MFace;
|
|
struct MVert;
|
|
struct Mesh;
|
|
struct PointCloud;
|
|
|
|
struct BVHCache;
|
|
|
|
/**
|
|
* Struct that stores basic information about a BVHTree built from a edit-mesh.
|
|
*/
|
|
typedef struct BVHTreeFromEditMesh {
|
|
struct BVHTree *tree;
|
|
|
|
/* default callbacks to bvh nearest and raycast */
|
|
BVHTree_NearestPointCallback nearest_callback;
|
|
BVHTree_RayCastCallback raycast_callback;
|
|
|
|
struct BMEditMesh *em;
|
|
|
|
/* Private data */
|
|
bool cached;
|
|
|
|
} BVHTreeFromEditMesh;
|
|
|
|
/**
|
|
* Struct that stores basic information about a BVHTree built from a mesh.
|
|
*/
|
|
typedef struct BVHTreeFromMesh {
|
|
struct BVHTree *tree;
|
|
|
|
/* default callbacks to bvh nearest and raycast */
|
|
BVHTree_NearestPointCallback nearest_callback;
|
|
BVHTree_RayCastCallback raycast_callback;
|
|
|
|
/* Vertex array, so that callbacks have instante access to data */
|
|
const struct MVert *vert;
|
|
const struct MEdge *edge; /* only used for BVHTreeFromMeshEdges */
|
|
const struct MFace *face;
|
|
const struct MLoop *loop;
|
|
const struct MLoopTri *looptri;
|
|
bool vert_allocated;
|
|
bool edge_allocated;
|
|
bool face_allocated;
|
|
bool loop_allocated;
|
|
bool looptri_allocated;
|
|
|
|
/* Private data */
|
|
bool cached;
|
|
|
|
} BVHTreeFromMesh;
|
|
|
|
typedef enum BVHCacheType {
|
|
BVHTREE_FROM_VERTS,
|
|
BVHTREE_FROM_EDGES,
|
|
BVHTREE_FROM_FACES,
|
|
BVHTREE_FROM_LOOPTRI,
|
|
BVHTREE_FROM_LOOPTRI_NO_HIDDEN,
|
|
|
|
BVHTREE_FROM_LOOSEVERTS,
|
|
BVHTREE_FROM_LOOSEEDGES,
|
|
|
|
BVHTREE_FROM_EM_VERTS,
|
|
BVHTREE_FROM_EM_EDGES,
|
|
BVHTREE_FROM_EM_LOOPTRI,
|
|
|
|
/* Keep `BVHTREE_MAX_ITEM` as last item. */
|
|
BVHTREE_MAX_ITEM,
|
|
} BVHCacheType;
|
|
|
|
/**
|
|
* Builds a bvh tree where nodes are the relevant elements of the given mesh.
|
|
* Configures #BVHTreeFromMesh.
|
|
*
|
|
* The tree is build in mesh space coordinates, this means special care must be made on queries
|
|
* so that the coordinates and rays are first translated on the mesh local coordinates.
|
|
* Reason for this is that bvh_from_mesh_* can use a cache in some cases and so it
|
|
* becomes possible to reuse a #BVHTree.
|
|
*
|
|
* free_bvhtree_from_mesh should be called when the tree is no longer needed.
|
|
*/
|
|
BVHTree *bvhtree_from_editmesh_verts(
|
|
BVHTreeFromEditMesh *data, struct BMEditMesh *em, float epsilon, int tree_type, int axis);
|
|
|
|
BVHTree *bvhtree_from_editmesh_verts_ex(BVHTreeFromEditMesh *data,
|
|
struct BMEditMesh *em,
|
|
const BLI_bitmap *mask,
|
|
int verts_num_active,
|
|
float epsilon,
|
|
int tree_type,
|
|
int axis,
|
|
const BVHCacheType bvh_cache_type,
|
|
struct BVHCache **bvh_cache_p,
|
|
ThreadMutex *mesh_eval_mutex);
|
|
|
|
BVHTree *bvhtree_from_mesh_verts_ex(struct BVHTreeFromMesh *data,
|
|
const struct MVert *vert,
|
|
const int verts_num,
|
|
const bool vert_allocated,
|
|
const BLI_bitmap *mask,
|
|
int verts_num_active,
|
|
float epsilon,
|
|
int tree_type,
|
|
int axis,
|
|
const BVHCacheType bvh_cache_type,
|
|
struct BVHCache **bvh_cache_p,
|
|
ThreadMutex *mesh_eval_mutex);
|
|
|
|
BVHTree *bvhtree_from_editmesh_edges(
|
|
BVHTreeFromEditMesh *data, struct BMEditMesh *em, float epsilon, int tree_type, int axis);
|
|
|
|
BVHTree *bvhtree_from_editmesh_edges_ex(BVHTreeFromEditMesh *data,
|
|
struct BMEditMesh *em,
|
|
const BLI_bitmap *edges_mask,
|
|
int edges_num_active,
|
|
float epsilon,
|
|
int tree_type,
|
|
int axis,
|
|
const BVHCacheType bvh_cache_type,
|
|
struct BVHCache **bvh_cache_p,
|
|
ThreadMutex *mesh_eval_mutex);
|
|
|
|
BVHTree *bvhtree_from_mesh_edges_ex(struct BVHTreeFromMesh *data,
|
|
const struct MVert *vert,
|
|
const bool vert_allocated,
|
|
const struct MEdge *edge,
|
|
const int edges_num,
|
|
const bool edge_allocated,
|
|
const BLI_bitmap *edges_mask,
|
|
int edges_num_active,
|
|
float epsilon,
|
|
int tree_type,
|
|
int axis,
|
|
const BVHCacheType bvh_cache_type,
|
|
struct BVHCache **bvh_cache_p,
|
|
ThreadMutex *mesh_eval_mutex);
|
|
|
|
BVHTree *bvhtree_from_mesh_faces_ex(struct BVHTreeFromMesh *data,
|
|
const struct MVert *vert,
|
|
const bool vert_allocated,
|
|
const struct MFace *face,
|
|
const int numFaces,
|
|
const bool face_allocated,
|
|
const BLI_bitmap *mask,
|
|
int faces_num_active,
|
|
float epsilon,
|
|
int tree_type,
|
|
int axis,
|
|
const BVHCacheType bvh_cache_type,
|
|
struct BVHCache **bvh_cache_p,
|
|
ThreadMutex *mesh_eval_mutex);
|
|
|
|
BVHTree *bvhtree_from_editmesh_looptri(
|
|
BVHTreeFromEditMesh *data, struct BMEditMesh *em, float epsilon, int tree_type, int axis);
|
|
|
|
BVHTree *bvhtree_from_editmesh_looptri_ex(BVHTreeFromEditMesh *data,
|
|
struct BMEditMesh *em,
|
|
const BLI_bitmap *mask,
|
|
int looptri_num_active,
|
|
float epsilon,
|
|
int tree_type,
|
|
int axis,
|
|
const BVHCacheType bvh_cache_type,
|
|
struct BVHCache **bvh_cache_p,
|
|
ThreadMutex *mesh_eval_mutex);
|
|
|
|
BVHTree *bvhtree_from_mesh_looptri_ex(struct BVHTreeFromMesh *data,
|
|
const struct MVert *vert,
|
|
const bool vert_allocated,
|
|
const struct MLoop *mloop,
|
|
const bool loop_allocated,
|
|
const struct MLoopTri *looptri,
|
|
const int looptri_num,
|
|
const bool looptri_allocated,
|
|
const BLI_bitmap *mask,
|
|
int looptri_num_active,
|
|
float epsilon,
|
|
int tree_type,
|
|
int axis,
|
|
const BVHCacheType bvh_cache_type,
|
|
struct BVHCache **bvh_cache_p,
|
|
ThreadMutex *mesh_eval_mutex);
|
|
|
|
BVHTree *BKE_bvhtree_from_mesh_get(struct BVHTreeFromMesh *data,
|
|
struct Mesh *mesh,
|
|
const BVHCacheType bvh_cache_type,
|
|
const int tree_type);
|
|
|
|
BVHTree *BKE_bvhtree_from_editmesh_get(BVHTreeFromEditMesh *data,
|
|
struct BMEditMesh *em,
|
|
const int tree_type,
|
|
const BVHCacheType bvh_cache_type,
|
|
struct BVHCache **bvh_cache_p,
|
|
ThreadMutex *mesh_eval_mutex);
|
|
|
|
/**
|
|
* Frees data allocated by a call to bvhtree_from_mesh_*.
|
|
*/
|
|
void free_bvhtree_from_editmesh(struct BVHTreeFromEditMesh *data);
|
|
void free_bvhtree_from_mesh(struct BVHTreeFromMesh *data);
|
|
|
|
/**
|
|
* Math functions used by callbacks
|
|
*/
|
|
float bvhtree_ray_tri_intersection(const BVHTreeRay *ray,
|
|
const float m_dist,
|
|
const float v0[3],
|
|
const float v1[3],
|
|
const float v2[3]);
|
|
float bvhtree_sphereray_tri_intersection(const BVHTreeRay *ray,
|
|
float radius,
|
|
const float m_dist,
|
|
const float v0[3],
|
|
const float v1[3],
|
|
const float v2[3]);
|
|
|
|
typedef struct BVHTreeFromPointCloud {
|
|
struct BVHTree *tree;
|
|
|
|
BVHTree_NearestPointCallback nearest_callback;
|
|
|
|
const float (*coords)[3];
|
|
} BVHTreeFromPointCloud;
|
|
|
|
BVHTree *BKE_bvhtree_from_pointcloud_get(struct BVHTreeFromPointCloud *data,
|
|
const struct PointCloud *pointcloud,
|
|
const int tree_type);
|
|
|
|
void free_bvhtree_from_pointcloud(struct BVHTreeFromPointCloud *data);
|
|
|
|
/**
|
|
* BVHCache
|
|
*/
|
|
|
|
/* Using local coordinates */
|
|
|
|
bool bvhcache_has_tree(const struct BVHCache *bvh_cache, const BVHTree *tree);
|
|
struct BVHCache *bvhcache_init(void);
|
|
void bvhcache_free(struct BVHCache *bvh_cache);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|