=== 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.

1 files changed, 3 insertions, 1 deletions

diff --git a/source/blender/src/transform_constraints.c b/source/blender/src/transform_constraints.c
index 423bee574f2..4e9004a30ef 100755
--- a/source/blender/src/transform_constraints.c
+++ b/source/blender/src/transform_constraints.c
@@ -218,7 +218,9 @@ static void planeProjection(TransInfo *t, float in[3], float out[3]) {
 	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);