SL-19148 Decruft followthrough -- fix for crash when running from installer. Feed fresnel component into PBR alpha. Remove obsolete "shader_hierarchy.txt", remove redundant LL_PROFILE_ZONE_SCOPED, remove unused shader feature flag.

2 files changed, 13 insertions, 16 deletions

diff --git a/indra/newview/app_settings/shaders/class2/deferred/pbralphaF.glsl b/indra/newview/app_settings/shaders/class2/deferred/pbralphaF.glsl
index ccf20942e3..35e22ef3a2 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/pbralphaF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/pbralphaF.glsl
@@ -113,6 +113,8 @@ vec3 pbrPunctual(vec3 diffuseColor, vec3 specularColor,
                     vec3 v, // surface point to camera
                     vec3 l); //surface point to light
 
+vec2 BRDF(float NoV, float roughness);
+
 vec3 calcPointLightOrSpotLight(vec3 diffuseColor, vec3 specularColor, 
                     float perceptualRoughness, 
                     float metallic,
@@ -217,8 +219,12 @@ void main()
     calcDiffuseSpecular(col.rgb, metallic, diffuseColor, specularColor);
 
     vec3 v = -normalize(pos.xyz);
+
     color = pbrBaseLight(diffuseColor, specularColor, metallic, v, norm.xyz, perceptualRoughness, light_dir, sunlit, scol, radiance, irradiance, colorEmissive, ao, additive, atten);
 
+    float nv = clamp(abs(dot(norm.xyz, v)), 0.001, 1.0);
+    vec2 brdf = BRDF(clamp(nv, 0, 1), 1.0-perceptualRoughness);
+
     vec3 light = vec3(0);
 
     // Punctual lights
@@ -235,5 +241,11 @@ void main()
     color.rgb += light.rgb;
 
     
-    frag_color = vec4(color.rgb,basecolor.a * vertex_color.a);
+    float a = basecolor.a*vertex_color.a;
+    vec3 spec = radiance; // *specularColor;
+    float lum = max(max(spec.r, spec.g), spec.b);
+    
+    float f = brdf.y;
+    a += f;
+    frag_color = vec4(color.rgb,a);
 }
diff --git a/indra/newview/app_settings/shaders/shader_hierarchy.txt b/indra/newview/app_settings/shaders/shader_hierarchy.txt
deleted file mode 100644
index 81e1327178..0000000000
--- a/indra/newview/app_settings/shaders/shader_hierarchy.txt
+++ /dev/null
@@ -1,15 +0,0 @@
-Second Life shader variants are referred to as "classes."  
-
-When a shader of a particular class is loaded, a lower class may 
-be loaded if the class requested doesn't exist or fails to load 
-for any reason.  In general, shaders that require more resources
-or later hardware capabilities should be higher class and 
-lower classes can be used for fallback implementations or lower
-detail settings.
-
-Which class is chosen will generally depend on graphics preferences. 
-
-Previously, someone tried to enumerate the shaders here, but don't do 
-that.  It messes with searches and the shader hierarchy changes often.
-
-