1 files changed, 10 insertions, 5 deletions
diff --git a/indra/newview/app_settings/shaders/class1/deferred/softenLightV.glsl b/indra/newview/app_settings/shaders/class1/deferred/softenLightV.glsl
index e992776cb4..f1ada39854 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/softenLightV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/softenLightV.glsl
@@ -29,12 +29,17 @@ ATTRIBUTE vec3 position;
 
 uniform vec2 screen_res;
 
+void setAttenuation(vec3 c);
+void setAdditiveColor(vec3 c);
+
 VARYING vec2 vary_fragcoord;
 void main()
 {
-	//transform vertex
-	vec4 pos = modelview_projection_matrix * vec4(position.xyz, 1.0);
-	gl_Position = pos; 
-	
-	vary_fragcoord = (pos.xy*0.5+0.5)*screen_res;
+    //transform vertex
+    vec4 pos = modelview_projection_matrix * vec4(position.xyz, 1.0);
+    gl_Position = pos; 
+    // appease OSX GLSL compiler/linker by touching all the varyings we said we would
+    setAttenuation(vec3(1));
+    setAdditiveColor(vec3(0));
+    vary_fragcoord = (pos.xy*0.5+0.5)*screen_res;
 }