[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [34505] trunk/blender/source/blender/ blenkernel/intern/particle.c: Fix for [#25797] Hair partcle crash when vertexgroup length enabled

[Janne Karhu]

Revision: 34505
          
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=34505
Author:   jhk
Date:     2011-01-26 13:02:47 +0000 (Wed, 26 Jan 2011)
Log Message:
-----------
Fix for [#25797] Hair partcle crash when vertexgroup length enabled
* Rounding errors could give vgroup weights of slightly over 1.0 to particles 
in some cases.

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

Modified: trunk/blender/source/blender/blenkernel/intern/particle.c
===================================================================
--- trunk/blender/source/blender/blenkernel/intern/particle.c   2011-01-26 
12:48:22 UTC (rev 34504)
+++ trunk/blender/source/blender/blenkernel/intern/particle.c   2011-01-26 
13:02:47 UTC (rev 34505)
@@ -1001,6 +1001,8 @@
        value= w[0]*v1 + w[1]*v2 + w[2]*v3;
        if(four)
                value += w[3]*v4;
+
+       CLAMP(value, 0.f, 1.f);
        
        return value;
 }

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