BLI_kdopbvh: Use distance for BLI_bvhtree_ray_cast_all

Pass distance argument so its possible to limit the range we get all hits from.

Other changes:

- Use boundbox test before calling callback, avoids redundant calls.
- Remove meaningless return value.
- Add doc string, explaining purpose of this function.

1 files changed, 3 insertions, 1 deletions

diff --git a/source/blender/editors/physics/particle_edit.c b/source/blender/editors/physics/particle_edit.c
index 2ae1254f9e6..3da3a451d66 100644
--- a/source/blender/editors/physics/particle_edit.c
+++ b/source/blender/editors/physics/particle_edit.c
@@ -4111,7 +4111,9 @@ static bool shape_cut_test_point(PEData *data, ParticleCacheKey *key)
 	userdata.bvhdata = data->shape_bvh;
 	userdata.num_hits = 0;
 	
-	BLI_bvhtree_ray_cast_all(shape_bvh->tree, key->co, dir, 0.0f, point_inside_bvh_cb, &userdata);
+	BLI_bvhtree_ray_cast_all(
+	        shape_bvh->tree, key->co, dir, 0.0f, BVH_RAYCAST_DIST_MAX,
+	        point_inside_bvh_cb, &userdata);
 	
 	/* for any point inside a watertight mesh the number of hits is uneven */
 	return (userdata.num_hits % 2) == 1;