[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [14928] trunk/blender/source/blender/nodes /intern/CMP_nodes/CMP_gamma.c:

[Brecht Van Lommel]

Revision: 14928
          
http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=14928
Author:   blendix
Date:     2008-05-22 16:56:32 +0200 (Thu, 22 May 2008)

Log Message:
-----------

Fix for part of bug #12075: gamma node generated nan's on negative input.

Modified Paths:
--------------
    trunk/blender/source/blender/nodes/intern/CMP_nodes/CMP_gamma.c

Modified: trunk/blender/source/blender/nodes/intern/CMP_nodes/CMP_gamma.c
===================================================================
--- trunk/blender/source/blender/nodes/intern/CMP_nodes/CMP_gamma.c     
2008-05-22 14:12:09 UTC (rev 14927)
+++ trunk/blender/source/blender/nodes/intern/CMP_nodes/CMP_gamma.c     
2008-05-22 14:56:32 UTC (rev 14928)
@@ -46,7 +46,8 @@
 {
        int i=0;
        for(i=0; i<3; i++) {
-               out[i] = pow(in[i],fac[0]);
+               /* check for negative to avoid nan's */
+               out[i] = (in[0] > 0.0f)? pow(in[i],fac[0]): in[0];
        }
        out[3] = in[3];
 }


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