1 files changed, 3 insertions, 7 deletions
diff --git a/indra/newview/app_settings/shaders/class1/lighting/lightWaterAlphaMaskF.glsl b/indra/newview/app_settings/shaders/class1/lighting/lightWaterAlphaMaskF.glsl
index 9c89c09573..670b3ddaf1 100644
--- a/indra/newview/app_settings/shaders/class1/lighting/lightWaterAlphaMaskF.glsl
+++ b/indra/newview/app_settings/shaders/class1/lighting/lightWaterAlphaMaskF.glsl
@@ -23,19 +23,15 @@
  * $/LicenseInfo$
  */
 
-#ifdef DEFINE_GL_FRAGCOLOR
 out vec4 frag_color;
-#else
-#define frag_color gl_FragColor
-#endif
 
 uniform float minimum_alpha;
 
 vec3 atmosLighting(vec3 light);
 vec4 applyWaterFog(vec4 color);
 
-VARYING vec4 vertex_color;
-VARYING vec2 vary_texcoord0;
+in vec4 vertex_color;
+in vec2 vary_texcoord0;
 
 void default_lighting_water()
 {
@@ -50,6 +46,6 @@ void default_lighting_water()
 
 	color.rgb = atmosLighting(color.rgb);
 
-	frag_color = applyWaterFog(color);
+	frag_color = max(applyWaterFog(color), vec4(0));
 }