[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [54387] trunk/blender/source/blender/ collada/ControllerExporter.cpp: fix: #34051 Collada export crashes

[Gaia Clary]

Revision: 54387
          http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=54387
Author:   gaiaclary
Date:     2013-02-08 12:31:47 +0000 (Fri, 08 Feb 2013)
Log Message:
-----------
fix: #34051 Collada export crashes

Modified Paths:
--------------
    trunk/blender/source/blender/collada/ControllerExporter.cpp

Modified: trunk/blender/source/blender/collada/ControllerExporter.cpp
===================================================================
--- trunk/blender/source/blender/collada/ControllerExporter.cpp	2013-02-08 12:23:36 UTC (rev 54386)
+++ trunk/blender/source/blender/collada/ControllerExporter.cpp	2013-02-08 12:31:47 UTC (rev 54387)
@@ -246,10 +246,13 @@
 			float sumw = 0.0f;
 
 			for (j = 0; j < vert->totweight; j++) {
-				int joint_index = joint_index_by_def_index[vert->dw[j].def_nr];
-				if (joint_index != -1 && vert->dw[j].weight > 0.0f) {
-					jw[joint_index] += vert->dw[j].weight;
-					sumw += vert->dw[j].weight;
+				int idx = vert->dw[j].def_nr;
+				if (idx >= 0) {
+					int joint_index = joint_index_by_def_index[idx];
+					if (joint_index != -1 && vert->dw[j].weight > 0.0f) {
+						jw[joint_index] += vert->dw[j].weight;
+						sumw += vert->dw[j].weight;
+					}
 				}
 			}