Add a touch of fakey ripple to shadows on the surface of water, as if the water has depth. Using 4th component of the normal map to encode a position displacement (along the normal) in the class2 shadow lookup.

1 files changed, 2 insertions, 2 deletions

diff --git a/indra/newview/app_settings/shaders/class1/deferred/waterF.glsl b/indra/newview/app_settings/shaders/class1/deferred/waterF.glsl
index 55c893d73b..ceb7e0fb56 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/waterF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/waterF.glsl
@@ -133,9 +133,9 @@ void main()
 
 	//wavef.z *= 0.1f;
 	//wavef = normalize(wavef);
-	wavef = (norm_mat*vec4(wavef, 1.0)).xyz;
+	vec3 screenspacewavef = (norm_mat*vec4(wavef, 1.0)).xyz;
 	
 	gl_FragData[0] = vec4(color.rgb, 0.5); // diffuse
 	gl_FragData[1] = vec4(0.5,0.5,0.5, 0.95); // speccolor*spec, spec
-	gl_FragData[2] = vec4(wavef*0.5+0.5, 0.0); // normal
+	gl_FragData[2] = vec4(screenspacewavef*0.5+0.5, screenspacewavef.z*0.5); // normal, displace
 }