1 files changed, 10 insertions, 5 deletions
diff --git a/indra/newview/app_settings/shaders/class3/environment/waterF.glsl b/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
index 7524567f6b..9da86759c9 100644
--- a/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
+++ b/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
@@ -25,10 +25,10 @@
  
 // class3/environment/waterF.glsl
 
-#ifdef DEFINE_GL_FRAGCOLOR
 out vec4 frag_color;
-#else
-#define frag_color gl_FragColor
+
+#ifdef HAS_SUN_SHADOW
+float sampleDirectionalShadow(vec3 pos, vec3 norm, vec2 pos_screen);
 #endif
 
 vec3 scaleSoftClipFragLinear(vec3 l);
@@ -199,6 +199,12 @@ void main()
     vec3 additive;
     vec3 atten;
 
+    float shadow = 1.0f;
+
+#ifdef HAS_SUN_SHADOW
+    shadow = sampleDirectionalShadow(pos.xyz, norm.xyz, distort);
+#endif
+
     calcAtmosphericVarsLinear(pos.xyz, wavef, vary_light_dir, sunlit, amblit, additive, atten);
 
     vec3 sunlit_linear = srgb_to_linear(sunlit);
@@ -241,7 +247,6 @@ void main()
 
     vec3 v = -normalize(pos.xyz);
 
-    float scol = 1.0;
     vec3 colorEmissive = vec3(0);
     float ao = 1.0;
     vec3 light_dir = transform_normal(lightDir);
@@ -253,7 +258,7 @@ void main()
 
     vec3 punctual = pbrPunctual(vec3(0), specularColor, 0.1, metallic, normalize(wavef+up*max(dist, 32.0)/32.0*(1.0-vdu)), v, normalize(light_dir));
 
-    vec3 color = punctual * sunlit_linear * 2.75 * scol;
+    vec3 color = punctual * sunlit_linear * 2.75 * shadow;
 
     vec3 ibl = pbrIbl(vec3(0), vec3(1), radiance, vec3(0), ao, NdotV, 0.0);