[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [23328] trunk/blender/source/blender/ blenkernel/intern/brush.c: curve could return values lower then zero, making a brush add and subtract the color in different parts.

[Campbell Barton]

Revision: 23328
          http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=23328
Author:   campbellbarton
Date:     2009-09-18 06:07:41 +0200 (Fri, 18 Sep 2009)

Log Message:
-----------
curve could return values lower then zero, making a brush add and subtract the color in different parts. (cool but not useful!)

Modified Paths:
--------------
    trunk/blender/source/blender/blenkernel/intern/brush.c

Modified: trunk/blender/source/blender/blenkernel/intern/brush.c
===================================================================
--- trunk/blender/source/blender/blenkernel/intern/brush.c	2009-09-18 03:47:17 UTC (rev 23327)
+++ trunk/blender/source/blender/blenkernel/intern/brush.c	2009-09-18 04:07:41 UTC (rev 23328)
@@ -933,8 +933,10 @@
 /* Uses the brush curve control to find a strength value between 0 and 1 */
 float brush_curve_strength(Brush *br, float p, const float len)
 {
+	float f;
 	if(p > len) p= len;
-	return curvemapping_evaluateF(br->curve, 0, p/len);
+	f= curvemapping_evaluateF(br->curve, 0, p/len);
+	return (f > 0.0f) ? f:0.0f;
 }
 
 /* TODO: should probably be unified with BrushPainter stuff? */