[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [10749] trunk/blender/source/blender/src/ transform_constraints.c: === Bugfix ===

[Martin Poirier]

Revision: 10749
          https://svn.blender.org//revision/?rev=10749&view=rev
Author:   theeth
Date:     2007-05-21 20:15:24 +0200 (Mon, 21 May 2007)

Log Message:
-----------
=== Bugfix ===

Fix float error in Transform Contraint with planar constraints when the plane was perpendicular to the viewport. This could cause some weird erratic behavior.

Modified Paths:
--------------
    trunk/blender/source/blender/src/transform_constraints.c

Modified: trunk/blender/source/blender/src/transform_constraints.c
===================================================================
--- trunk/blender/source/blender/src/transform_constraints.c	2007-05-21 16:01:49 UTC (rev 10748)
+++ trunk/blender/source/blender/src/transform_constraints.c	2007-05-21 18:15:24 UTC (rev 10749)
@@ -218,7 +218,9 @@
 	VecSubf(vec, out, in);
 
 	factor = Inpf(vec, norm);
-	if (factor == 0.0f) return; /* prevent divide by zero */
+	if (fabs(factor) <= FLT_EPSILON) {
+		return; /* prevent divide by zero */
+	}
 	factor = Inpf(vec, vec) / factor;
 
 	VECCOPY(vec, norm);