diff options
| author | Campbell Barton <ideasman42@gmail.com> | 2013-09-19 11:58:47 +0400 |
|---|---|---|
| committer | Campbell Barton <ideasman42@gmail.com> | 2013-09-19 11:58:47 +0400 |
| commit | 1ca5de1b51fb57deee02bc65d681f6245103e74b (patch) | |
| tree | a74edab87d3310cb4d84d6cb1a7866d3c731d4b3 /source/blender/bmesh/intern/bmesh_polygon.c | |
| parent | ac0a2ef274c3542a2f72b1e1fd70897b910a04d7 (diff) | |
speedup for ngon tessellation, check if the angle is an improvement before doing the full intersection check.
with 500 verts gives approx 2x speedup.
Diffstat (limited to 'source/blender/bmesh/intern/bmesh_polygon.c')
| -rw-r--r-- | source/blender/bmesh/intern/bmesh_polygon.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/source/blender/bmesh/intern/bmesh_polygon.c b/source/blender/bmesh/intern/bmesh_polygon.c index 1a1d92a9d96..dbfb08454e4 100644 --- a/source/blender/bmesh/intern/bmesh_polygon.c +++ b/source/blender/bmesh/intern/bmesh_polygon.c @@ -941,18 +941,18 @@ static BMLoop *poly_find_ear(BMFace *f, float (*projectverts)[2], const bool use const BMVert *v2 = l_iter->v; const BMVert *v3 = l_iter->next->v; - if (bm_face_goodline((float const (*)[2])projectverts, f, - BM_elem_index_get(v1), - BM_elem_index_get(v2), - BM_elem_index_get(v3))) - { - /* Compute highest cos (i.e. narrowest angle) of this tri. */ - cos = max_fff(abscoss[i], - fabsf(cos_v3v3v3(v2->co, v3->co, v1->co)), - fabsf(cos_v3v3v3(v3->co, v1->co, v2->co))); - - /* Compare to prev best (i.e. lowest) cos. */ - if (cos < cos_best) { + /* Compute highest cos (i.e. narrowest angle) of this tri. */ + cos = max_fff(abscoss[i], + fabsf(cos_v3v3v3(v2->co, v3->co, v1->co)), + fabsf(cos_v3v3v3(v3->co, v1->co, v2->co))); + + /* Compare to prev best (i.e. lowest) cos. */ + if (cos < cos_best) { + if (bm_face_goodline((float const (*)[2])projectverts, f, + BM_elem_index_get(v1), + BM_elem_index_get(v2), + BM_elem_index_get(v3))) + { /* We must check this tri would not leave a (too much) degenerated remaining face! */ /* For now just assume if the average of cos of all * "remaining face"'s corners is below a given threshold, it's OK. */ |