Make ambient clamping consistent between class1/2 deferred lighting and forward rendering.

Add decls for intermediate lighting values for debug.

4 files changed, 45 insertions, 4 deletions

diff --git a/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl b/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl
index 6e693bd33b..fb24927b26 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl
@@ -190,7 +190,7 @@ void main()
 
     calcFragAtmospherics(pos.xyz, 1.0, sunlit, amblit, additive, atten);
 
-    vec2 abnormal   = encode_normal(norm.xyz);
+    vec2 abnormal = encode_normal(norm.xyz);
 
     vec3 light_dir = (sun_up_factor == 1) ? sun_dir: moon_dir;
     float da = dot(norm.xyz, light_dir.xyz);
@@ -208,15 +208,23 @@ void main()
     float ambient = da;
     ambient *= 0.5;
     ambient *= ambient;
-    ambient = max(0.9, ambient); // keeps shadows dark
+    ambient = max(0.66, ambient); // keeps shadows dark
     ambient = 1.0 - ambient;
 
     vec3 sun_contrib = min(final_da, shadow) * sunlit;
 
     color.rgb *= ambient;
+
+vec3 post_ambient = color.rgb;
+
     color.rgb += sun_contrib;
+
+vec3 post_sunlight = color.rgb;
+
     color.rgb *= diff.rgb;
 
+vec3 post_diffuse = color.rgb;
+
     //color.rgb = mix(diff.rgb, color.rgb, final_alpha);
     
     color.rgb = atmosFragLighting(color.rgb, additive, atten);
@@ -224,6 +232,8 @@ void main()
 
     vec4 light = vec4(0,0,0,0);
 
+vec3 prelight_linearish_maybe = color.rgb;
+
    #define LIGHT_LOOP(i) light.rgb += calcPointLightOrSpotLight(light_diffuse[i].rgb, diff.rgb, pos.xyz, norm, light_position[i], light_direction[i].xyz, light_attenuation[i].x, light_attenuation[i].y, light_attenuation[i].z, light_attenuation[i].w, shadow);
 
     LIGHT_LOOP(1)
@@ -238,13 +248,19 @@ void main()
     //
     color.rgb += light.rgb;
 
+vec3 postlight_linear = color.rgb;
+
+color.rgb = prelight_linearish_maybe;
+
     color.rgb = linear_to_srgb(color.rgb);
+
 #endif
 
 #ifdef WATER_FOG
     color = applyWaterFogView(pos.xyz, color);
 #endif
 
+
     frag_color = color;
 }
 
diff --git a/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl b/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl
index 4a47311eb7..4bb01824bf 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl
@@ -305,16 +305,24 @@ void main()
     float ambient = da;
     ambient *= 0.5;
     ambient *= ambient;
-    ambient = max(0.9, ambient);
+    ambient = max(0.66, ambient);
     ambient = 1.0 - ambient;
 
     vec3 sun_contrib = min(final_da, shadow) * sunlit;
    
     col.rgb = amblit;
     col.rgb *= ambient;
+
+vec3 post_ambient = col.rgb;
+
     col.rgb += sun_contrib;
+
+vec3 post_sunlight = col.rgb;
+
     col.rgb *= diffuse.rgb;
  
+vec3 post_diffuse = col.rgb;
+
     float glare = 0.0;
 
     if (spec.a > 0.0) // specular reflection
@@ -363,6 +371,8 @@ vec3 post_spec = col.rgb;
             
     vec3 light = vec3(0,0,0);
 
+    vec3 prelight_linearish_maybe = col.rgb;
+
  #define LIGHT_LOOP(i) light.rgb += calcPointLightOrSpotLight(light_diffuse[i].rgb, npos, diffuse.rgb, final_specular, pos.xyz, norm.xyz, light_position[i], light_direction[i].xyz, light_attenuation[i].x, light_attenuation[i].y, light_attenuation[i].z, glare, light_attenuation[i].w, shadow);
 
         LIGHT_LOOP(1)
@@ -375,6 +385,8 @@ vec3 post_spec = col.rgb;
 
     col.rgb += light.rgb;
 
+vec3 postlight_linear = col.rgb;
+
     glare = min(glare, 1.0);
     float al = max(diffcol.a,glare)*vertex_color.a;
 
@@ -384,6 +396,8 @@ vec3 post_spec = col.rgb;
     al = temp.a;
 #endif
 
+//col.rgb = prelight_linearish_maybe;
+
     col.rgb = linear_to_srgb(col.rgb);
 
     frag_color.rgb = col.rgb;
diff --git a/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl
index 361ed40eaf..4b9e8290dd 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl
@@ -112,15 +112,24 @@ void main()
         float ambient = da;
         ambient *= 0.5;
         ambient *= ambient;
+        ambient = max(0.66, ambient);
         ambient = 1.0 - ambient;
 
         vec3 sun_contrib = final_da * sunlit;
 
         col.rgb = amblit;
         col.rgb *= ambient;
+
+vec3 post_ambient = col.rgb;
+
         col.rgb += sun_contrib;
+
+vec3 post_sunlight = col.rgb;
+
         col.rgb *= diffuse.rgb;
 
+vec3 post_diffuse = col.rgb;
+
         vec3 refnormpersp = normalize(reflect(pos.xyz, norm.xyz));
 
         if (spec.a > 0.0) // specular reflection
@@ -168,6 +177,8 @@ void main()
             col = fogged.rgb;
             bloom = fogged.a;
         #endif
+
+//col.rgb = post_diffuse;
     }
 
     frag_color.rgb = col.rgb;
diff --git a/indra/newview/app_settings/shaders/class1/lighting/sumLightsV.glsl b/indra/newview/app_settings/shaders/class1/lighting/sumLightsV.glsl
index 7d699a4967..4d7cff37c6 100644
--- a/indra/newview/app_settings/shaders/class1/lighting/sumLightsV.glsl
+++ b/indra/newview/app_settings/shaders/class1/lighting/sumLightsV.glsl
@@ -34,7 +34,7 @@ vec3 scaleDownLight(vec3 light);
 
 vec4 sumLights(vec3 pos, vec3 norm, vec4 color, vec4 baseLight)
 {
-	vec4 col;
+	vec4 col = vec4(0);
 	col.a = color.a;
 	
 	col.rgb = light_diffuse[1].rgb * calcDirectionalLight(norm, light_position[1].xyz);