DRTVWR-559 Fix for off-color fullbright alpha blinn-phong materials. Scrub some NaNs.

1 files changed, 2 insertions, 2 deletions

diff --git a/indra/newview/app_settings/shaders/class2/deferred/pbralphaF.glsl b/indra/newview/app_settings/shaders/class2/deferred/pbralphaF.glsl
index 7b7b4a040c..e6aef7abdc 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/pbralphaF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/pbralphaF.glsl
@@ -258,7 +258,7 @@ void main()
     glare = min(glare, 1.0);
     a = max(a, glare);
 
-    frag_color = vec4(color.rgb,a);
+    frag_color = max(vec4(color.rgb,a), vec4(0));
 }
 
 #else
@@ -311,7 +311,7 @@ void main()
     float a = basecolor.a*vertex_color.a;
     color += colorEmissive;
     color = linear_to_srgb(color);
-    frag_color = vec4(color.rgb,a);
+    frag_color = max(vec4(color.rgb,a), vec4(0));
 }
 
 #endif