1 files changed, 17 insertions, 13 deletions
diff --git a/indra/newview/app_settings/shaders/class1/environment/waterV.glsl b/indra/newview/app_settings/shaders/class1/environment/waterV.glsl
index 610c06fbbc..f66ba1d2d9 100644
--- a/indra/newview/app_settings/shaders/class1/environment/waterV.glsl
+++ b/indra/newview/app_settings/shaders/class1/environment/waterV.glsl
@@ -22,8 +22,11 @@
  * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
  * $/LicenseInfo$
  */
- 
 
+uniform mat4 modelview_matrix;
+uniform mat4 modelview_projection_matrix;
+
+ATTRIBUTE vec3 position;
 
 void calcAtmospherics(vec3 inPositionEye);
 
@@ -33,9 +36,9 @@ uniform float time;
 uniform vec3 eyeVec;
 uniform float waterHeight;
 
-varying vec4 refCoord;
-varying vec4 littleWave;
-varying vec4 view;
+VARYING vec4 refCoord;
+VARYING vec4 littleWave;
+VARYING vec4 view;
 
 float wave(vec2 v, float t, float f, vec2 d, float s) 
 {
@@ -45,8 +48,7 @@ float wave(vec2 v, float t, float f, vec2 d, float s)
 void main()
 {
 	//transform vertex
-	vec4 position = gl_Vertex;
-	mat4 modelViewProj = gl_ModelViewProjectionMatrix;
+	mat4 modelViewProj = modelview_projection_matrix;
 	
 	vec4 oPosition;
 		    
@@ -57,27 +59,29 @@ void main()
 	float d = length(oEyeVec.xy);
 	float ld = min(d, 2560.0);
 	
-	position.xy = eyeVec.xy + oEyeVec.xy/d*ld;
+	vec3 lpos = position;
+	lpos.xy = eyeVec.xy + oEyeVec.xy/d*ld;
 	view.xyz = oEyeVec;
 		
 	d = clamp(ld/1536.0-0.5, 0.0, 1.0);	
 	d *= d;
 		
-	oPosition = position;
+	oPosition = vec4(lpos, 1.0);
 	oPosition.z = mix(oPosition.z, max(eyeVec.z*0.75, 0.0), d);
 	oPosition = modelViewProj * oPosition;
 	refCoord.xyz = oPosition.xyz + vec3(0,0,0.2);
 	
 	//get wave position parameter (create sweeping horizontal waves)
-	vec3 v = position.xyz;
+	vec3 v = lpos;
 	v.x += (cos(v.x*0.08/*+time*0.01*/)+sin(v.y*0.02))*6.0;
 	    
 	//push position for further horizon effect.
-	position.xyz = oEyeVec.xyz*(waterHeight/oEyeVec.z);
-	position.w = 1.0;
-	position = position*gl_ModelViewMatrix;
+	vec4 pos;
+	pos.xyz = oEyeVec.xyz*(waterHeight/oEyeVec.z);
+	pos.w = 1.0;
+	pos = modelview_matrix*pos;
 	
-	calcAtmospherics((gl_ModelViewMatrix * gl_Vertex).xyz);
+	calcAtmospherics(pos.xyz);
 	
 	
 	//pass wave parameters to pixel shader