1 files changed, 7 insertions, 1 deletions
diff --git a/indra/newview/app_settings/shaders/class1/deferred/waterF.glsl b/indra/newview/app_settings/shaders/class1/deferred/waterF.glsl
index 1ae006bc8a..daa2fb390a 100755
--- a/indra/newview/app_settings/shaders/class1/deferred/waterF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/waterF.glsl
@@ -67,6 +67,12 @@ VARYING vec4 littleWave;
 VARYING vec4 view;
 VARYING vec4 vary_position;
 
+vec2 encode_normal(vec3 n)
+{
+	float f = sqrt(8 * n.z + 8);
+	return n.xy / f + 0.5;
+}
+
 void main() 
 {
 	vec4 color;
@@ -161,5 +167,5 @@ void main()
 	
 	frag_data[0] = vec4(color.rgb, 0.5); // diffuse
 	frag_data[1] = vec4(0.5,0.5,0.5, 0.95); // speccolor*spec, spec
-	frag_data[2] = vec4(screenspacewavef.xyz*0.5+0.5, screenspacewavef.z*0.5); // normalxyz, displace
+	frag_data[2] = vec4(encode_normal(screenspacewavef), 0.0, 0.0); // normalxyz, displace
 }