static void rna_Object_ray_cast(
Object *ob, ReportList *reports,
float origin[3], float direction[3], float distance,
int *r_success, float r_location[3], float r_normal[3], int *r_index)
{
bool success = false;
if (ob->derivedFinal == NULL) {
BKE_reportf(reports, RPT_ERROR, "Object '%s' has no mesh data to be used for ray casting", ob->id.name + 2);
return;
}
/* Test BoundBox first (efficiency) */
BoundBox *bb = BKE_object_boundbox_get(ob);
float distmin;
if (!bb || (isect_ray_aabb_v3_simple(origin, direction, bb->vec[0], bb->vec[6], &distmin, NULL) && distmin <= distance)) {
BVHTreeFromMesh treeData = {NULL};
/* no need to managing allocation or freeing of the BVH data. this is generated and freed as needed */
bvhtree_from_mesh_looptri(&treeData, ob->derivedFinal, 0.0f, 4, 6);
/* may fail if the mesh has no faces, in that case the ray-cast misses */
if (treeData.tree != NULL) {
BVHTreeRayHit hit;
hit.index = -1;
hit.dist = distance;
normalize_v3(direction);
if (BLI_bvhtree_ray_cast(treeData.tree, origin, direction, 0.0f, &hit,
treeData.raycast_callback, &treeData) != -1)
{
if (hit.dist <= distance) {
*r_success = success = true;
copy_v3_v3(r_location, hit.co);
copy_v3_v3(r_normal, hit.no);
*r_index = dm_looptri_to_poly_index(ob->derivedFinal, &treeData.looptri[hit.index]);
}
}
free_bvhtree_from_mesh(&treeData);
}
}
if (success == false) {
*r_success = false;
zero_v3(r_location);
zero_v3(r_normal);
*r_index = -1;
}
}
static void rna_Object_ray_cast(Object *ob,
bContext *C,
ReportList *reports,
float origin[3],
float direction[3],
float distance,
PointerRNA *rnaptr_depsgraph,
bool *r_success,
float r_location[3],
float r_normal[3],
int *r_index)
{
bool success = false;
if (ob->runtime.mesh_eval == NULL &&
(ob = eval_object_ensure(ob, C, reports, rnaptr_depsgraph)) == NULL) {
return;
}
/* Test BoundBox first (efficiency) */
BoundBox *bb = BKE_object_boundbox_get(ob);
float distmin;
normalize_v3(
direction); /* Needed for valid distance check from isect_ray_aabb_v3_simple() call. */
if (!bb ||
(isect_ray_aabb_v3_simple(origin, direction, bb->vec[0], bb->vec[6], &distmin, NULL) &&
distmin <= distance)) {
BVHTreeFromMesh treeData = {NULL};
/* No need to managing allocation or freeing of the BVH data.
* This is generated and freed as needed. */
BKE_bvhtree_from_mesh_get(&treeData, ob->runtime.mesh_eval, BVHTREE_FROM_LOOPTRI, 4);
/* may fail if the mesh has no faces, in that case the ray-cast misses */
if (treeData.tree != NULL) {
BVHTreeRayHit hit;
hit.index = -1;
hit.dist = distance;
if (BLI_bvhtree_ray_cast(treeData.tree,
origin,
direction,
0.0f,
&hit,
treeData.raycast_callback,
&treeData) != -1) {
if (hit.dist <= distance) {
*r_success = success = true;
copy_v3_v3(r_location, hit.co);
copy_v3_v3(r_normal, hit.no);
*r_index = mesh_looptri_to_poly_index(ob->runtime.mesh_eval,
&treeData.looptri[hit.index]);
}
}
free_bvhtree_from_mesh(&treeData);
}
}
if (success == false) {
*r_success = false;
zero_v3(r_location);
zero_v3(r_normal);
*r_index = -1;
}
}