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| author | Campbell Barton <ideasman42@gmail.com> | 2012-04-16 20:49:37 +0400 |
|---|---|---|
| committer | Campbell Barton <ideasman42@gmail.com> | 2012-04-16 20:49:37 +0400 |
| commit | 67f8e3a3a7af4146b9bb7ae40f1bdc8dabc2b48f (patch) | |
| tree | e70b92076373c720df61107bcd8e134d1006c76a /source/blender/bmesh/intern/bmesh_polygon.c | |
| parent | e889fa467816950c828f7696be2433c472a7d4ad (diff) | |
inline function for "Newell's Method" used for normal calc.
Diffstat (limited to 'source/blender/bmesh/intern/bmesh_polygon.c')
| -rw-r--r-- | source/blender/bmesh/intern/bmesh_polygon.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/source/blender/bmesh/intern/bmesh_polygon.c b/source/blender/bmesh/intern/bmesh_polygon.c index 67e3d24ade1..77e50b1ea3f 100644 --- a/source/blender/bmesh/intern/bmesh_polygon.c +++ b/source/blender/bmesh/intern/bmesh_polygon.c @@ -84,9 +84,7 @@ static void compute_poly_normal(float normal[3], float verts[][3], int nverts) /* Newell's Method */ for (i = 0; i < nverts; v_prev = v_curr, v_curr = verts[++i]) { - n[0] += (v_prev[1] - v_curr[1]) * (v_prev[2] + v_curr[2]); - n[1] += (v_prev[2] - v_curr[2]) * (v_prev[0] + v_curr[0]); - n[2] += (v_prev[0] - v_curr[0]) * (v_prev[1] + v_curr[1]); + add_newell_cross_v3_v3v3(n, v_prev, v_curr); } if (UNLIKELY(normalize_v3_v3(normal, n) == 0.0f)) { @@ -109,9 +107,7 @@ static void bm_face_compute_poly_normal(BMFace *f) /* Newell's Method */ do { - n[0] += (v_prev[1] - v_curr[1]) * (v_prev[2] + v_curr[2]); - n[1] += (v_prev[2] - v_curr[2]) * (v_prev[0] + v_curr[0]); - n[2] += (v_prev[0] - v_curr[0]) * (v_prev[1] + v_curr[1]); + add_newell_cross_v3_v3v3(n, v_prev, v_curr); l_iter = l_iter->next; v_prev = v_curr; @@ -142,9 +138,7 @@ static void bm_face_compute_poly_normal_vertex_cos(BMFace *f, float n[3], /* Newell's Method */ do { - n[0] += (v_prev[1] - v_curr[1]) * (v_prev[2] + v_curr[2]); - n[1] += (v_prev[2] - v_curr[2]) * (v_prev[0] + v_curr[0]); - n[2] += (v_prev[0] - v_curr[0]) * (v_prev[1] + v_curr[1]); + add_newell_cross_v3_v3v3(n, v_prev, v_curr); l_iter = l_iter->next; v_prev = v_curr; |