DRTVWR-559 Balance night scenes against release, nudge glow down a smidge, remove exposure correction from legacy fullbright balance PBR materials against legacy.

indra/newview/app_settings/settings.xml

@@ -10010,7 +10010,7 @@
       <key>Type</key>
       <string>F32</string>
       <key>Value</key>
-      <real>0.35</real>
+      <real>0.325</real>
     </map>
     <key>RenderGlowWarmthAmount</key>
     <map>

indra/newview/app_settings/shaders/class1/deferred/deferredUtil.glsl

@@ -387,7 +387,7 @@ vec3 pbrIbl(vec3 diffuseColor,
 {
     // retrieve a scale and bias to F0. See [1], Figure 3
 	vec2 brdf = BRDF(clamp(nv, 0, 1), 1.0-perceptualRough);
-	vec3 diffuseLight = irradiance;
+	vec3 diffuseLight = irradiance*1.25;  //magic 1.25 to balance with legacy materials
 	vec3 specularLight = radiance;
     
 	vec3 diffuse = diffuseLight * diffuseColor;
@@ -563,7 +563,7 @@ vec3 pbrBaseLight(vec3 diffuseColor, vec3 specularColor, float metallic, vec3 v,
     vec3 ibl_spec;
     color += pbrIbl(diffuseColor, specularColor, radiance, irradiance, ao, NdotV, perceptualRoughness, ibl_spec);
     
-    color += pbrPunctual(diffuseColor, specularColor, perceptualRoughness, metallic, norm, v, normalize(light_dir), specContrib) * sunlit * 2.75 * scol;
+    color += pbrPunctual(diffuseColor, specularColor, perceptualRoughness, metallic, norm, v, normalize(light_dir), specContrib) * sunlit * 3.9 * scol; //magic number to balance with legacy materials
     specContrib *= sunlit * 2.75 * scol;
     specContrib += ibl_spec;
 

indra/newview/app_settings/shaders/class1/deferred/emissiveF.glsl

@@ -36,11 +36,8 @@ VARYING vec2 vary_texcoord0;
 
 void main() 
 {
-	float shadow = 1.0;
-
-	vec4 color = diffuseLookup(vary_texcoord0.xy)*vertex_color;
-	color.rgb = fullbrightAtmosTransport(color.rgb);
-
-	frag_color = max(color, vec4(0));
+    // NOTE: when this shader is used, only alpha is being written to
+	float a = diffuseLookup(vary_texcoord0.xy).a*vertex_color.a;
+	frag_color = vec4(0, 0, 0, a);
 }
 

indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl

@@ -42,6 +42,7 @@ vec4 applyWaterFogView(vec3 pos, vec4 color);
 #endif
 
 vec3 srgb_to_linear(vec3 cs);
+vec3 legacy_adjust_fullbright(vec3 c);
 vec3 legacy_adjust(vec3 c);
 vec3 linear_to_srgb(vec3 cl);
 vec3 fullbrightAtmosTransport(vec3 light);
@@ -90,8 +91,8 @@ void main()
 #ifndef IS_HUD
     color.rgb = legacy_adjust(color.rgb);
     color.rgb = srgb_to_linear(color.rgb);
+    color.rgb = legacy_adjust_fullbright(color.rgb);
     color.rgb = fullbrightAtmosTransport(color.rgb);
-    
 #endif
 
     frag_color = max(color, vec4(0));

indra/newview/app_settings/shaders/class1/deferred/skyV.glsl

@@ -91,7 +91,7 @@ void main()
     vary_LightNormPosDot = rel_pos_lightnorm_dot;
 
     // Initialize temp variables
-    vec3 sunlight = (sun_up_factor == 1) ? sunlight_color : moonlight_color;
+    vec3 sunlight = (sun_up_factor == 1) ? sunlight_color : moonlight_color * 0.7; //magic 0.7 to match legacy color
     
     // Sunlight attenuation effect (hue and brightness) due to atmosphere
     // this is used later for sunlight modulation at various altitudes

indra/newview/app_settings/shaders/class1/environment/srgbF.glsl

@@ -23,6 +23,8 @@
  * $/LicenseInfo$
  */
 
+ uniform sampler2D exposureMap;
+
 vec3 srgb_to_linear(vec3 cs)
 {
 	vec3 low_range = cs / vec3(12.92);
@@ -83,12 +85,32 @@ vec3 hsv2rgb(vec3 c)
     return c.z * mix(K.xxx, clamp(p - K.xxx, 0.0, 1.0), c.y);
 }
 
-vec3 legacy_adjust_no_brighten(vec3 c)
+const mat3 inv_ACESOutputMat = mat3(0.643038, 0.0592687, 0.0059619, 0.311187, 0.931436, 0.063929, 0.0457755, 0.00929492, 0.930118 );
+
+const mat3 inv_ACESInputMat = mat3( 1.76474, -0.147028, -0.0363368, -0.675778, 1.16025, -0.162436, -0.0889633, -0.0132237, 1.19877 );
+
+vec3 inv_RRTAndODTFit(vec3 x)
 {
-    vec3 desat = rgb2hsv(c.rgb);
-    desat.g *= 0.75;
-    desat.rgb = hsv2rgb(desat);
-    return desat;
+    float A = 0.0245786;
+    float B = 0.000090537;
+    float C = 0.983729;
+    float D = 0.4329510;
+    float E = 0.238081;
+
+    return (A - D * x)/(2.0 * (C * x - 1.0)) - sqrt(pow(D * x - A, vec3(2.0)) - 4.0 * (C * x - 1.0) * (B + E * x))/(2.0 * (C * x - 1.0));
+}
+
+// experimental inverse of ACES Hill tonemapping
+vec3 inv_toneMapACES_Hill(vec3 color)
+{
+    color = inv_ACESOutputMat * color;
+
+    // Apply RRT and ODT
+    color = inv_RRTAndODTFit(color);
+
+    color = inv_ACESInputMat * color;
+
+    return color;
 }
 
 vec3 legacy_adjust(vec3 c)
@@ -100,6 +122,13 @@ vec3 legacy_adjust(vec3 c)
     return desat;
 }
 
+vec3 legacy_adjust_fullbright(vec3 c)
+{
+    float exp_scale = texture(exposureMap, vec2(0.5, 0.5)).r;
+    return c / exp_scale * 1.34;
+}
+
+
 vec3 legacy_adjust_post(vec3 c)
 {
     return c;

indra/newview/app_settings/shaders/class2/deferred/pbralphaF.glsl

@@ -148,7 +148,7 @@ vec3 calcPointLightOrSpotLight(vec3 diffuseColor, vec3 specularColor,
         // spot*spot => GL_SPOT_EXPONENT=2
         float spot_atten = spot*spot;
 
-        vec3 intensity = spot_atten * dist_atten * lightColor * 3.0;
+        vec3 intensity = spot_atten * dist_atten * lightColor * 3.9; //magic number to balance with legacy materials
 
         vec3 speccol;
         color = intensity*pbrPunctual(diffuseColor, specularColor, perceptualRoughness, metallic, n.xyz, v, lv, speccol);

indra/newview/app_settings/shaders/class2/windlight/atmosphericsFuncs.glsl

@@ -50,6 +50,7 @@ uniform float sun_moon_glow_factor;
 float getAmbientClamp() { return 1.0f; }
 
 vec3 srgb_to_linear(vec3 col);
+vec3 legacy_adjust(vec3 col);
 
 // return colors in sRGB space
 void calcAtmosphericVars(vec3 inPositionEye, vec3 light_dir, float ambFactor, out vec3 sunlit, out vec3 amblit, out vec3 additive,
@@ -63,8 +64,8 @@ void calcAtmosphericVars(vec3 inPositionEye, vec3 light_dir, float ambFactor, ou
     vec3  rel_pos_norm = normalize(rel_pos);
     float rel_pos_len  = length(rel_pos);
     
-    vec3  sunlight     = (sun_up_factor == 1) ? sunlight_color: moonlight_color;
-
+    vec3  sunlight     = (sun_up_factor == 1) ? sunlight_color: moonlight_color * 0.7;  // magic 0.7 to match legacy color
+    
     // sunlight attenuation effect (hue and brightness) due to atmosphere
     // this is used later for sunlight modulation at various altitudes
     vec3 light_atten = (blue_density + vec3(haze_density * 0.25)) * (density_multiplier * max_y);

indra/newview/app_settings/shaders/class3/deferred/multiPointLightF.glsl

@@ -124,7 +124,7 @@ void main()
 
                 float dist_atten = calcLegacyDistanceAttenuation(dist, falloff);
 
-                vec3 intensity = dist_atten * lightColor * 3.0;
+                vec3 intensity = dist_atten * lightColor * 3.9;
 
                 final_color += intensity*pbrPunctual(diffuseColor, specularColor, perceptualRoughness, metallic, n.xyz, v, lv);
             }

indra/newview/app_settings/shaders/class3/deferred/multiSpotLightF.glsl

@@ -173,7 +173,7 @@ void main()
                 
                 dlit = getProjectedLightDiffuseColor( l_dist, proj_tc.xy );
 
-                vec3 intensity = dist_atten * dlit * 3.0 * shadow; // Legacy attenuation
+                vec3 intensity = dist_atten * dlit * 3.9 * shadow; // Legacy attenuation, magic number to balance with legacy materials
                 final_color += intensity*pbrPunctual(diffuseColor, specularColor, perceptualRoughness, metallic, n.xyz, v, normalize(lv));
             }
 

indra/newview/app_settings/shaders/class3/deferred/pointLightF.glsl

@@ -113,7 +113,7 @@ void main()
 
         vec3 specularColor = mix(f0, baseColor.rgb, metallic);
 
-        vec3 intensity = dist_atten * color * 3.0; // Legacy attenuation
+        vec3 intensity = dist_atten * color * 3.9; // Legacy attenuation, magic number to balance with legacy materials
         final_color += intensity*pbrPunctual(diffuseColor, specularColor, perceptualRoughness, metallic, n.xyz, v, normalize(lv));
     }
     else

indra/newview/app_settings/shaders/class3/deferred/spotLightF.glsl

@@ -180,7 +180,7 @@ void main()
                 
                 dlit = getProjectedLightDiffuseColor( l_dist, proj_tc.xy );
 
-                vec3 intensity = dist_atten * dlit * 3.0 * shadow; // Legacy attenuation
+                vec3 intensity = dist_atten * dlit * 3.9 * shadow; // Legacy attenuation
                 final_color += intensity*pbrPunctual(diffuseColor, specularColor, perceptualRoughness, metallic, n.xyz, v, normalize(lv));
             }
 

indra/newview/lldrawpoolalpha.cpp

@@ -140,6 +140,12 @@ static void prepare_alpha_shader(LLGLSLShader* shader, bool textureGamma, bool d
         shader->uniform1f(LLShaderMgr::TEXTURE_GAMMA, 2.2f);
     }
 
+    S32 channel = shader->enableTexture(LLShaderMgr::EXPOSURE_MAP);
+    if (channel > -1)
+    {
+        gGL.getTexUnit(channel)->bind(&gPipeline.mExposureMap);
+    }
+
     //also prepare rigged variant
     if (shader->mRiggedVariant && shader->mRiggedVariant != shader)
     { 

indra/newview/lldrawpoolsimple.cpp

@@ -62,6 +62,13 @@ static void setup_glow_shader(LLGLSLShader* shader)
 static void setup_fullbright_shader(LLGLSLShader* shader)
 {
     setup_glow_shader(shader);
+
+    S32 channel = shader->enableTexture(LLShaderMgr::EXPOSURE_MAP);
+    if (channel > -1)
+    {
+        gGL.getTexUnit(channel)->bind(&gPipeline.mExposureMap);
+    }
+
     shader->uniform1f(LLViewerShaderMgr::FULLBRIGHT, 1.f);
 }
 

indra/newview/pipeline.cpp

@@ -7696,6 +7696,12 @@ void LLPipeline::bindDeferredShader(LLGLSLShader& shader, LLRenderTarget* light_
         stop_glerror();
     }
 
+    channel = shader.enableTexture(LLShaderMgr::EXPOSURE_MAP);
+    if (channel > -1)
+    {
+        gGL.getTexUnit(channel)->bind(&mExposureMap);
+    }
+
     if (shader.getUniformLocation(LLShaderMgr::VIEWPORT) != -1)
     {
 		shader.uniform4f(LLShaderMgr::VIEWPORT, (F32) gGLViewport[0],