[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [17162] branches/sim_physics/source/ blender/render/intern/source/volumetric.c: Tweaked rendering inside a volume to always return alpha 1.0.

[Matt Ebb]

Revision: 17162
          http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=17162
Author:   broken
Date:     2008-10-22 04:59:33 +0200 (Wed, 22 Oct 2008)

Log Message:
-----------
Tweaked rendering inside a volume to always return alpha 1.0.
This fixes an issue which darkened the render from inside a 
volume with sky or premul on. Still need to find a good way to
get an alpha value back into the shader (for compositing etc)
without getting the render distorted by premul.

Modified Paths:
--------------
    branches/sim_physics/source/blender/render/intern/source/volumetric.c

Modified: branches/sim_physics/source/blender/render/intern/source/volumetric.c
===================================================================
--- branches/sim_physics/source/blender/render/intern/source/volumetric.c	2008-10-22 01:31:46 UTC (rev 17161)
+++ branches/sim_physics/source/blender/render/intern/source/volumetric.c	2008-10-22 02:59:33 UTC (rev 17162)
@@ -664,7 +664,8 @@
 		shr->combined[1] = col[1];
 		shr->combined[2] = col[2];
 		
-		if (col[3] > 1.0f) col[3] = 1.0f;
+		//if (col[3] > 1.0f)
+		col[3] = 1.0f;
 		shr->combined[3] = col[3];
 		shr->alpha = col[3];
 		
@@ -858,7 +859,7 @@
 
 	float co[3], voxel[3], scatter_col[3];
 	ShadeInput shi;
-	float view[3] = {0.0,0.0,1.0};
+	float view[3] = {0.0,0.0,-1.0};
 	float density;
 	float stepsize;