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| author | Campbell Barton <ideasman42@gmail.com> | 2015-08-21 10:05:48 +0300 |
|---|---|---|
| committer | Campbell Barton <ideasman42@gmail.com> | 2015-08-21 10:09:18 +0300 |
| commit | c727fc59abe2b7e525bdc6594bbd7ec3285936e0 (patch) | |
| tree | dfcadf23e28c2464655f4c06a5f94621721fe0c2 /source/blender/editors/mesh/editmesh_knife.c | |
| parent | a98b02ff941edb1d92892f520641433582754f0d (diff) | |
BVH-raycast: ensure input direction is unit-length
This was already the case for most users of ray-cast.
Doing this avoids 2x normalize calls per ray-cast in many places.
Diffstat (limited to 'source/blender/editors/mesh/editmesh_knife.c')
| -rw-r--r-- | source/blender/editors/mesh/editmesh_knife.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/source/blender/editors/mesh/editmesh_knife.c b/source/blender/editors/mesh/editmesh_knife.c index caafaf06e9e..787b79f0d6e 100644 --- a/source/blender/editors/mesh/editmesh_knife.c +++ b/source/blender/editors/mesh/editmesh_knife.c @@ -1809,13 +1809,14 @@ static BMFace *knife_find_closest_face(KnifeTool_OpData *kcd, float co[3], float float dist = KMAXDIST; float origin[3]; float origin_ofs[3]; - float ray[3]; + float ray[3], ray_normal[3]; /* unproject to find view ray */ knife_input_ray_segment(kcd, kcd->curr.mval, 1.0f, origin, origin_ofs); sub_v3_v3v3(ray, origin_ofs, origin); + normalize_v3_v3(ray_normal, ray); - f = BKE_bmbvh_ray_cast(kcd->bmbvh, origin, ray, 0.0f, NULL, co, cageco); + f = BKE_bmbvh_ray_cast(kcd->bmbvh, origin, ray_normal, 0.0f, NULL, co, cageco); if (f && kcd->only_select && BM_elem_flag_test(f, BM_ELEM_SELECT) == 0) { f = NULL; |