[Bf-blender-cvs] [ce18956d9bd] blender2.8: Optimization of tangent calculation

[Sergey Sharybin]

Commit: ce18956d9bd1e4df8d5574df9f06c4e1bcde9b54
Author: Sergey Sharybin
Date:   Wed Jun 7 11:23:59 2017 +0200
Branches: blender2.8
https://developer.blender.org/rBce18956d9bd1e4df8d5574df9f06c4e1bcde9b54

Optimization of tangent calculation

Avoid doing string comparison when we already know layer is
to be added to bitfield.

===================================================================

M	source/blender/blenkernel/intern/mesh_tangent.c

===================================================================

diff --git a/source/blender/blenkernel/intern/mesh_tangent.c b/source/blender/blenkernel/intern/mesh_tangent.c
index 7b953337909..b9d1025d7b1 100644
--- a/source/blender/blenkernel/intern/mesh_tangent.c
+++ b/source/blender/blenkernel/intern/mesh_tangent.c
@@ -520,8 +520,8 @@ void BKE_mesh_calc_loop_tangent_step_0(
 				break;
 			}
 		}
-		if ((*rcalc_act && ract_uv_name[0] && STREQ(ract_uv_name, name)) ||
-		    (*rcalc_ren && rren_uv_name[0] && STREQ(rren_uv_name, name)))
+		if (!add && ((*rcalc_act && ract_uv_name[0] && STREQ(ract_uv_name, name)) ||
+		             (*rcalc_ren && rren_uv_name[0] && STREQ(rren_uv_name, name))))
 		{
 			add = true;
 		}