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

1 files changed, 1 insertions, 1 deletions

diff --git a/indra/newview/app_settings/shaders/class1/deferred/luminanceF.glsl b/indra/newview/app_settings/shaders/class1/deferred/luminanceF.glsl
index ee425f97fc..c8afacf9bb 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/luminanceF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/luminanceF.glsl
@@ -47,6 +47,6 @@ void main()
     tc.y -= 0.1; // HACK - nudge exposure sample down a little bit to favor ground over sky
     vec3 c = texture(diffuseRect, tc).rgb + texture(emissiveRect, tc).rgb;
     float L = lum(c);
-    frag_color = vec4(L);
+    frag_color = vec4(max(L, 0.0));
 }