1 files changed, 5 insertions, 34 deletions
diff --git a/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl b/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl
index 02d83925ea..e87d90aa9e 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl
@@ -277,10 +277,10 @@ void main()
     vec4 final_specular = spec;
     
 #ifdef HAS_SPECULAR_MAP
-    vec4 final_normal = vec4(encode_normal(normalize(tnorm)), env_intensity * spec.a, 0.0);
+    vec4 final_normal = vec4(encode_normal(normalize(tnorm)), env_intensity * spec.a, GBUFFER_FLAG_HAS_ATMOS);
 	final_specular.a = specular_color.a * norm.a;
 #else
-	vec4 final_normal = vec4(encode_normal(normalize(tnorm)), env_intensity, 0.0);
+	vec4 final_normal = vec4(encode_normal(normalize(tnorm)), env_intensity, GBUFFER_FLAG_HAS_ATMOS);
 	final_specular.a = specular_color.a;
 #endif
 
@@ -345,35 +345,6 @@ void main()
 
     if (spec.a > 0.0)  // specular reflection
     {
-        /*  // Reverting this specular calculation to previous 'dumbshiny' version - DJH 6/17/2020
-            // Preserving the refactored version as a comment for potential reconsideration,
-            // overriding the general rule to avoid pollutiong the source with commented code.
-            //
-            //  If you're reading this in 2021+, feel free to obliterate.
-
-        vec3 npos = -normalize(pos.xyz);
-
-        //vec3 ref = dot(pos+lv, norm);
-        vec3 h = normalize(light_dir.xyz + npos);
-        float nh = dot(norm.xyz, h);
-        float nv = dot(norm.xyz, npos);
-        float vh = dot(npos, h);
-        float sa = nh;
-        float fres = pow(1 - dot(h, npos), 5)*0.4 + 0.5;
-
-        float gtdenom = 2 * nh;
-        float gt = max(0, min(gtdenom * nv / vh, gtdenom * da / vh));
-
-        if (nh > 0.0)
-        {
-            float scol = fres*texture2D(lightFunc, vec2(nh, spec.a)).r*gt / (nh*da);
-            vec3 sp = sun_contrib*scol / 6.0f;
-            sp = clamp(sp, vec3(0), vec3(1));
-            bloom = dot(sp, sp) / 4.0;
-            color += sp * spec.rgb;
-        }
-        */
-
         float sa        = dot(refnormpersp, sun_dir.xyz);
         vec3  dumbshiny = sunlit * shadow * (texture2D(lightFunc, vec2(sa, spec.a)).r);
 
@@ -444,10 +415,10 @@ void main()
 
 #else // mode is not DIFFUSE_ALPHA_MODE_BLEND, encode to gbuffer 
 
-    // deferred path
-    frag_data[0] = final_color; //gbuffer is sRGB
+    // deferred path               // See: C++: addDeferredAttachment(), shader: softenLightF.glsl
+    frag_data[0] = final_color;    // gbuffer is sRGB
     frag_data[1] = final_specular; // XYZ = Specular color. W = Specular exponent.
-    frag_data[2] = final_normal; // XY = Normal.  Z = Env. intensity.
+    frag_data[2] = final_normal;   // XY = Normal.  Z = Env. intensity. W = 1 skip atmos (mask off fog)
 #endif
 }