1 files changed, 22 insertions, 46 deletions

diff --git a/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl b/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl
index a91e9fa15b..171a0e76f7 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl
@@ -1,21 +1,17 @@
 /** 
  * @file alphaF.glsl
  *
- * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
- * $License$
+ * $LicenseInfo:firstyear=2007&license=viewerlgpl$
+ * $/LicenseInfo$
  */
 
 #extension GL_ARB_texture_rectangle : enable
 
 uniform sampler2D diffuseMap;
-uniform sampler2DShadow shadowMap0;
-uniform sampler2DShadow shadowMap1;
-uniform sampler2DShadow shadowMap2;
-uniform sampler2DShadow shadowMap3;
 uniform sampler2D noiseMap;
-uniform sampler2DRect positionMap;
+uniform sampler2DRect depthMap;
 
-uniform mat4 shadow_matrix[4];
+uniform mat4 shadow_matrix[6];
 uniform vec4 shadow_clip;
 uniform vec2 screen_res;
 
@@ -26,63 +22,43 @@ varying vec3 vary_ambient;
 varying vec3 vary_directional;
 varying vec3 vary_fragcoord;
 varying vec3 vary_position;
+varying vec3 vary_light;
 
-uniform float alpha_soften;
+uniform mat4 inv_proj;
+
+vec4 getPosition(vec2 pos_screen)
+{
+	float depth = texture2DRect(depthMap, pos_screen.xy).a;
+	vec2 sc = pos_screen.xy*2.0;
+	sc /= screen_res;
+	sc -= vec2(1.0,1.0);
+	vec4 ndc = vec4(sc.x, sc.y, 2.0*depth-1.0, 1.0);
+	vec4 pos = inv_proj * ndc;
+	pos /= pos.w;
+	pos.w = 1.0;
+	return pos;
+}
 
 void main() 
 {
 	vec2 frag = vary_fragcoord.xy/vary_fragcoord.z*0.5+0.5;
 	frag *= screen_res;
 	
-	vec3 samp_pos = texture2DRect(positionMap, frag).xyz;
+	vec3 samp_pos = getPosition(frag).xyz;
 	
-	float shadow = 1.0;
 	vec4 pos = vec4(vary_position, 1.0);
 	
-	if (pos.z > -shadow_clip.w)
-	{	
-		if (pos.z < -shadow_clip.z)
-		{
-			vec4 lpos = shadow_matrix[3]*pos;
-			shadow = shadow2DProj(shadowMap3, lpos).x;
-			shadow += max((pos.z+shadow_clip.z)/(shadow_clip.z-shadow_clip.w)*2.0-1.0, 0.0);
-		}
-		else if (pos.z < -shadow_clip.y)
-		{
-			vec4 lpos = shadow_matrix[2]*pos;
-			shadow = shadow2DProj(shadowMap2, lpos).x;
-		}
-		else if (pos.z < -shadow_clip.x)
-		{
-			vec4 lpos = shadow_matrix[1]*pos;
-			shadow = shadow2DProj(shadowMap1, lpos).x;
-		}
-		else
-		{
-			vec4 lpos = shadow_matrix[0]*pos;
-			shadow = shadow2DProj(shadowMap0, lpos).x;
-		}
-	}
-	
-	vec4 col = vec4(vary_ambient + vary_directional.rgb*shadow, gl_Color.a);
+	vec4 col = vec4(vary_ambient + vary_directional.rgb, gl_Color.a);
 	vec4 color = texture2D(diffuseMap, gl_TexCoord[0].xy) * col;
 	
 	color.rgb = atmosLighting(color.rgb);
 
 	color.rgb = scaleSoftClip(color.rgb);
 
-	if (samp_pos.z != 0.0)
-	{
-		float dist_factor = alpha_soften;
-		float a = gl_Color.a;
-		a *= a;
-		dist_factor *= 1.0/(1.0-a);
-		color.a *= min((pos.z-samp_pos.z)*dist_factor, 1.0);
-	}
-	
 	//gl_FragColor = gl_Color;
 	gl_FragColor = color;
 	//gl_FragColor = vec4(1,0,1,1);
+	//gl_FragColor = vec4(1,0,1,1)*shadow;
 	
 }