SL-10966

Fix light atten and transmittance calcs breaking ambient color contrib to fog.

Needs to be tested on DRTSIM-415 or better to get legacy viewer settings that match EEP.

1 files changed, 3 insertions, 3 deletions

diff --git a/indra/newview/app_settings/shaders/class2/windlight/transportF.glsl b/indra/newview/app_settings/shaders/class2/windlight/transportF.glsl
index f9d2a36818..d2d839ed05 100644
--- a/indra/newview/app_settings/shaders/class2/windlight/transportF.glsl
+++ b/indra/newview/app_settings/shaders/class2/windlight/transportF.glsl
@@ -50,12 +50,12 @@ vec3 atmosTransport(vec3 light)
 
 vec3 fullbrightAtmosTransport(vec3 light)
 {
-    float brightness = dot(light.rgb, vec3(0.33333));
-    return atmosTransportFrag(light * 0.5, getAdditiveColor() * (brightness * 0.5 + 0.5), getAtmosAttenuation());
+    float brightness = dot(light.rgb * 0.5, vec3(0.3333)) + 0.1;
+    return atmosTransportFrag(light * 0.5, getAdditiveColor() * brightness, getAtmosAttenuation());
 }
 
 vec3 fullbrightShinyAtmosTransport(vec3 light)
 {
-    float brightness = dot(light.rgb, vec3(0.33333));
+    float brightness = dot(light.rgb * 0.5, vec3(0.33333)) + 0.1;
     return atmosTransportFrag(light * 0.5, getAdditiveColor() * (brightness * brightness), getAtmosAttenuation());
 }