Assorted shader cleanup to remove a few warnings and errors for OS X.

indra/newview/app_settings/shaders/class1/deferred/attachmentShadowV.glsl

@@ -31,15 +31,12 @@ ATTRIBUTE vec4 diffuse_color;
 ATTRIBUTE vec2 texcoord0;
 
 VARYING vec4 vertex_color;
-VARYING vec2 vary_texcoord0;
 
 mat4 getObjectSkinnedTransform();
 
 void main()
 {
 	//transform vertex
-	vary_texcoord0 = (texture_matrix0 * vec4(texcoord0,0,1)).xy;
-	
 	mat4 mat = getObjectSkinnedTransform();
 	
 	mat = modelview_matrix * mat;

indra/newview/app_settings/shaders/class1/deferred/avatarShadowV.glsl

@@ -32,12 +32,9 @@ ATTRIBUTE vec3 normal;
 ATTRIBUTE vec2 texcoord0;
 
 VARYING vec4 post_pos;
-VARYING vec2 vary_texcoord0;
 
 void main()
 {
-	vary_texcoord0 = texcoord0;
-				
 	vec4 pos;
 	vec3 norm;
 	

indra/newview/app_settings/shaders/class1/deferred/impostorV.glsl

@@ -27,10 +27,8 @@ uniform mat4 texture_matrix0;
 uniform mat4 modelview_projection_matrix;
 
 ATTRIBUTE vec3 position;
-ATTRIBUTE vec4 diffuse_color;
 ATTRIBUTE vec2 texcoord0;
 
-VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
 
 void main()
@@ -38,6 +36,4 @@ void main()
 	//transform vertex
 	gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0); 
 	vary_texcoord0 = (texture_matrix0 * vec4(texcoord0,0,1)).xy;
-	
-	vertex_color = diffuse_color;
 }

indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl

@@ -99,15 +99,15 @@ float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
 	stc.xyz /= stc.w;
 	stc.z += spot_shadow_bias*scl;
 	
-	float cs = shadow2D(shadowMap, stc.xyz);
+	float cs = shadow2D(shadowMap, stc.xyz).x;
 	float shadow = cs;
 
 	vec2 off = 1.5/proj_shadow_res;
 	
-	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(off.x, off.y, 0.0)), cs);
-	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(off.x, -off.y, 0.0)), cs);
-	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(-off.x, off.y, 0.0)), cs);
-	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(-off.x, -off.y, 0.0)), cs);
+	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(off.x, off.y, 0.0)).x, cs);
+	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(off.x, -off.y, 0.0)).x, cs);
+	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(-off.x, off.y, 0.0)).x, cs);
+	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(-off.x, -off.y, 0.0)).x, cs);
 				
 	return shadow/5.0;
 	

indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl

@@ -155,10 +155,10 @@ float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
 
 	vec2 off = 1.5/proj_shadow_res;
 	
-	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(off.x, off.y, 0.0)), cs);
-	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(off.x, -off.y, 0.0)), cs);
-	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(-off.x, off.y, 0.0)), cs);
-	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(-off.x, -off.y, 0.0)), cs);
+	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(off.x, off.y, 0.0)).x, cs);
+	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(off.x, -off.y, 0.0)).x, cs);
+	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(-off.x, off.y, 0.0)).x, cs);
+	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(-off.x, -off.y, 0.0)).x, cs);
 	
 			
 	return shadow/5.0;

indra/newview/app_settings/shaders/class2/windlight/skyV.glsl

@@ -26,7 +26,6 @@
 uniform mat4 modelview_projection_matrix;
 
 ATTRIBUTE vec3 position;
-ATTRIBUTE vec2 texcoord0;
 
 // SKY ////////////////////////////////////////////////////////////////////////
 // The vertex shader for creating the atmospheric sky
@@ -34,7 +33,6 @@ ATTRIBUTE vec2 texcoord0;
 
 // Output parameters
 VARYING vec4 vary_HazeColor;
-VARYING vec2 vary_texcoord0;
 
 // Inputs
 uniform vec3 camPosLocal;
@@ -62,7 +60,6 @@ void main()
 
 	// World / view / projection
 	gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0);
-	vary_texcoord0 = texcoord0;
 
 	// Get relative position
 	vec3 P = position.xyz - camPosLocal.xyz + vec3(0,50,0);