[Bf-blender-cvs] [ad40ae1] master: Fix T49327: Cycles OSL Mode: RGB Curves node only outputs gray scale images

[Sergey Sharybin]

Commit: ad40ae1e061171f80c0f1917571b7268882cd2ff
Author: Sergey Sharybin
Date:   Mon Sep 12 16:14:40 2016 +0200
Branches: master
https://developer.blender.org/rBad40ae1e061171f80c0f1917571b7268882cd2ff

Fix T49327: Cycles OSL Mode: RGB Curves node only outputs gray scale images

To be backported to 2.78 release.

===================================================================

M	intern/cycles/kernel/shaders/node_rgb_curves.osl

===================================================================

diff --git a/intern/cycles/kernel/shaders/node_rgb_curves.osl b/intern/cycles/kernel/shaders/node_rgb_curves.osl
index 984b7d4..0d5eeea 100644
--- a/intern/cycles/kernel/shaders/node_rgb_curves.osl
+++ b/intern/cycles/kernel/shaders/node_rgb_curves.osl
@@ -29,8 +29,8 @@ shader node_rgb_curves(
 	color c = (ColorIn - color(min_x, min_x, min_x)) / (max_x - min_x);
 
 	color r = rgb_ramp_lookup(ramp, c[0], 1, 1);
-	color g = rgb_ramp_lookup(ramp, c[0], 1, 1);
-	color b = rgb_ramp_lookup(ramp, c[0], 1, 1);
+	color g = rgb_ramp_lookup(ramp, c[1], 1, 1);
+	color b = rgb_ramp_lookup(ramp, c[2], 1, 1);
 
 	ColorOut[0] = r[0];
 	ColorOut[1] = g[1];