1 files changed, 7 insertions, 2 deletions
diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
index aa5e99a2f7..11ccdf638c 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
@@ -59,6 +59,7 @@ uniform mat4 inv_proj;
 uniform vec2 screen_res;
 uniform vec2 proj_shadow_res;
 uniform vec3 sun_dir;
+uniform vec3 moon_dir;
 
 uniform vec2 shadow_res;
 uniform float shadow_bias;
@@ -139,10 +140,14 @@ void main()
 	}*/
 	
 	float shadow = 0.0;
-	float dp_directional_light = max(0.0, dot(norm, sun_dir.xyz));
+    float da_sun = dot(norm, sun_dir.xyz);
+    float da_moon = dot(norm, moon_dir.xyz);
+    float da = max(da_sun, da_moon);
+
+	float dp_directional_light = max(0.0, da);
 	
 	vec3 shadow_pos = pos.xyz;
-	vec3 offset = sun_dir.xyz * (1.0-dp_directional_light);
+	vec3 offset = ((da_sun > da_moon) ? sun_dir.xyz  : moon_dir.xyz) * (1.0-dp_directional_light);
 	
 	vec4 spos = vec4(shadow_pos+offset*shadow_offset, 1.0);