SH-2546 Fix for black avatars and terrain on GF Go 7800 (use vec3 instead of...

SH-2546 Fix for black avatars and terrain on GF Go 7800 (use vec3 instead of float on varying parameters).

indra/newview/app_settings/shaders/class2/windlight/atmosphericsVarsF.glsl

@@ -26,7 +26,7 @@
 
 VARYING vec3 vary_SunlitColor;
 VARYING vec3 vary_AdditiveColor;
-VARYING float vary_AtmosAttenuation;
+VARYING vec3 vary_AtmosAttenuation;
 
 vec3 getSunlitColor()
 {

indra/newview/app_settings/shaders/class2/windlight/atmosphericsVarsV.glsl

@@ -25,7 +25,7 @@
  
 
 VARYING vec3 vary_AdditiveColor;
-VARYING float vary_AtmosAttenuation;
+VARYING vec3 vary_AtmosAttenuation;
 
 vec3 additive_color;
 vec3 atmos_attenuation;
@@ -80,5 +80,5 @@ void setAdditiveColor(vec3 v)
 void setAtmosAttenuation(vec3 v)
 {
 	atmos_attenuation = v;
-	vary_AtmosAttenuation = v.r;
+	vary_AtmosAttenuation = v;
 }