[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [53667] trunk/blender/source/blender/imbuf /intern/colormanagement.c: Fix #33809: Wrong exposure affect after alpha premul changes

[Sergey Sharybin]

Revision: 53667
          http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=53667
Author:   nazgul
Date:     2013-01-08 20:50:26 +0000 (Tue, 08 Jan 2013)
Log Message:
-----------
Fix #33809: Wrong exposure affect after alpha premul changes

Exposure shouldn't affect on alpha channel, only RGB shall be
affected by exposure.

Was a regression since recent alpha premul pipeline changes.

Modified Paths:
--------------
    trunk/blender/source/blender/imbuf/intern/colormanagement.c

Modified: trunk/blender/source/blender/imbuf/intern/colormanagement.c
===================================================================
--- trunk/blender/source/blender/imbuf/intern/colormanagement.c	2013-01-08 17:53:38 UTC (rev 53666)
+++ trunk/blender/source/blender/imbuf/intern/colormanagement.c	2013-01-08 20:50:26 UTC (rev 53667)
@@ -698,7 +698,7 @@
 	if (exposure != 0.0f) {
 		OCIO_MatrixTransformRcPtr *mt;
 		float gain = powf(2.0f, exposure);
-		const float scale4f[] = {gain, gain, gain, gain};
+		const float scale4f[] = {gain, gain, gain, 1.0f};
 		float m44[16], offset4[4];
 
 		OCIO_matrixTransformScale(m44, offset4, scale4f);