Use GL_SRGB8_ALPHA8 for the diffuse and specular buffers, and correct gamma *before* glow and other post processing effects that don't care about being gamma correct.

7 files changed, 47 insertions, 11 deletions

diff --git a/indra/newview/app_settings/shaders/class1/deferred/multiPointLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/multiPointLightF.glsl
index d29c9a2b77..63863fb836 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/multiPointLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/multiPointLightF.glsl
@@ -93,8 +93,7 @@ void main()
 	norm = decode_normal(norm.xy); // unpack norm
 	norm = normalize(norm);
 	vec4 spec = texture2DRect(specularRect, frag.xy);
-	spec.rgb = pow(spec.rgb, vec3(2.2));
-	vec3 diff = pow(texture2DRect(diffuseRect, frag.xy).rgb, vec3(2.2));
+	vec3 diff = texture2DRect(diffuseRect, frag.xy).rgb;
 	float noise = texture2D(noiseMap, frag.xy/128.0).b;
 	vec3 out_col = vec3(0,0,0);
 	vec3 npos = normalize(-pos);
diff --git a/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl
index 5129ecf128..377df49815 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl
@@ -181,7 +181,6 @@ void main()
 	vec3 col = vec3(0,0,0);
 		
 	vec3 diff_tex = texture2DRect(diffuseRect, frag.xy).rgb;
-	diff_tex = pow(diff_tex, vec3(2.2));
 		
 	float noise = texture2D(noiseMap, frag.xy/128.0).b;
 	if (proj_tc.z > 0.0 &&
@@ -222,7 +221,6 @@ void main()
 	
 	
 	vec4 spec = texture2DRect(specularRect, frag.xy);
-	spec.rgb = pow(spec.rgb, vec3(2.2));
 	
 	if (spec.a > 0.0)
 	{
diff --git a/indra/newview/app_settings/shaders/class1/deferred/pointLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/pointLightF.glsl
index fa514e5585..332b610197 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/pointLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/pointLightF.glsl
@@ -108,7 +108,7 @@ void main()
 	
 	float noise = texture2D(noiseMap, frag.xy/128.0).b;
 	
-	vec3 col = pow(texture2DRect(diffuseRect, frag.xy).rgb, vec3(2.2));
+	vec3 col = texture2DRect(diffuseRect, frag.xy).rgb;
 	float fa = falloff+1.0;
 	float dist_atten = clamp(1.0-(dist2-1.0*(1.0-fa))/fa, 0.0, 1.0);
 	float lit = da * dist_atten * noise;
@@ -116,7 +116,6 @@ void main()
 	col = color.rgb*lit*col;
 
 	vec4 spec = texture2DRect(specularRect, frag.xy);
-	spec.rgb = pow(spec.rgb, vec3(2.2));
 	if (spec.a > 0.0)
 	{
 		vec3 npos = -normalize(pos);
diff --git a/indra/newview/app_settings/shaders/class1/deferred/postDeferredGammaCorrect.glsl b/indra/newview/app_settings/shaders/class1/deferred/postDeferredGammaCorrect.glsl
new file mode 100644
index 0000000000..404e284abb
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/deferred/postDeferredGammaCorrect.glsl
@@ -0,0 +1,44 @@
+/** 
+ * @file postDeferredGammaCorrect.glsl
+ *
+ * $LicenseInfo:firstyear=2007&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2007, Linden Research, Inc.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+ 
+#extension GL_ARB_texture_rectangle : enable
+
+#ifdef DEFINE_GL_FRAGCOLOR
+out vec4 frag_color;
+#else
+#define frag_color gl_FragColor
+#endif
+
+uniform sampler2DRect diffuseRect;
+
+uniform vec2 screen_res;
+VARYING vec2 vary_fragcoord;
+
+void main() 
+{
+	vec4 diff = texture2DRect(diffuseRect, vary_fragcoord);
+	frag_color = pow(diff, vec4(0.454545, 0.454545, 0.454545, 1.0));
+}
+
diff --git a/indra/newview/app_settings/shaders/class1/deferred/postDeferredNoDoFF.glsl b/indra/newview/app_settings/shaders/class1/deferred/postDeferredNoDoFF.glsl
index cceb1b11ab..eb5beeef39 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/postDeferredNoDoFF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/postDeferredNoDoFF.glsl
@@ -42,6 +42,6 @@ void main()
 	vec4 diff = texture2DRect(diffuseRect, vary_fragcoord.xy);
 	
 	vec4 bloom = texture2D(bloomMap, vary_fragcoord.xy/screen_res);
-	frag_color = pow(diff + bloom, vec4(0.454545, 0.454545, 0.454545, 1.0));
+	frag_color = diff + bloom;
 }
 
diff --git a/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl
index 8600f69b8a..026039a0e7 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl
@@ -294,9 +294,7 @@ void main()
 	float da = max(dot(norm.xyz, sun_dir.xyz), 0.0);
 
 	vec4 diffuse = texture2DRect(diffuseRect, tc);
-	diffuse.rgb = pow(diffuse.rgb, vec3(2.2));
 	vec4 spec = texture2DRect(specularRect, vary_fragcoord.xy);
-	spec.rgb = pow(spec.rgb, vec3(2.2));
 	vec3 col;
 	float bloom = 0.0;
 	if (diffuse.a < 0.9)
diff --git a/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl
index 4b4063f51c..a339f6506e 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl
@@ -187,7 +187,6 @@ void main()
 	vec3 col = vec3(0,0,0);
 		
 	vec3 diff_tex = texture2DRect(diffuseRect, frag.xy).rgb;
-	diff_tex = pow(diff_tex, vec3(2.2));
 		
 	float noise = texture2D(noiseMap, frag.xy/128.0).b;
 	if (proj_tc.z > 0.0 &&
@@ -228,7 +227,6 @@ void main()
 	
 	
 	vec4 spec = texture2DRect(specularRect, frag.xy);
-	spec.rgb = pow(spec.rgb, vec3(2.2));
 
 	if (spec.a > 0.0)
 	{