# HG changeset patch
# User John Tsiombikas <nuclear@member.fsf.org>
# Date 1350993428 -10800
# Node ID f379c00eb07fdd7c61cf26e52a0b3ee7641935d3
# Parent  b05ab29cd17d4d1e7bd123ce57d76163af22edbf
added samurai's texel center fix for the color grading palette lookup

diff -r b05ab29cd17d -r f379c00eb07f prototype/sdr/post.p.glsl
--- a/prototype/sdr/post.p.glsl	Mon Oct 22 03:55:00 2012 +0300
+++ b/prototype/sdr/post.p.glsl	Tue Oct 23 14:57:08 2012 +0300
@@ -5,6 +5,7 @@
 {
 	// lookup the render output color for this pixel
 	vec4 color = texture2D(fbtex, gl_TexCoord[0].st);
+	vec3 tc = (color.xyz * 15.0 + 0.5) / 16.0;
 	// use that color as an index into the palette
-	gl_FragColor = vec4(texture3D(paltex, color.xyz).xyz, color.a);
+	gl_FragColor = vec4(texture3D(paltex, tc).xyz, color.a);
 }