MAINT-653 Fix for shadow acne at high altitudes

7 files changed, 112 insertions, 117 deletions

diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index b7b040f98b..ea54f4b881 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -8068,7 +8068,7 @@
     <key>Type</key>
     <string>F32</string>
     <key>Value</key>
-    <real>0</real>
+    <real>-0.007</real>
   </map>
   <key>RenderShadowOffsetError</key>
   <map>
diff --git a/indra/newview/app_settings/shaders/class2/deferred/alphaF.glsl b/indra/newview/app_settings/shaders/class2/deferred/alphaF.glsl
index 08f6ec63fe..99bf03ceca 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/alphaF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/alphaF.glsl
@@ -34,10 +34,10 @@ out vec4 frag_color;
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
 
-uniform sampler2DRectShadow shadowMap0;
-uniform sampler2DRectShadow shadowMap1;
-uniform sampler2DRectShadow shadowMap2;
-uniform sampler2DRectShadow shadowMap3;
+uniform sampler2DShadow shadowMap0;
+uniform sampler2DShadow shadowMap1;
+uniform sampler2DShadow shadowMap2;
+uniform sampler2DShadow shadowMap3;
 uniform sampler2DRect depthMap;
 
 uniform mat4 shadow_matrix[6];
@@ -58,18 +58,21 @@ uniform float shadow_bias;
 
 uniform mat4 inv_proj;
 
-float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
+float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
 {
 	stc.xyz /= stc.w;
 	stc.z += shadow_bias;
-	
-	float cs = shadow2DRect(shadowMap, stc.xyz).x;
+		
+	float cs = shadow2D(shadowMap, stc.xyz).x;
 	float shadow = cs;
 
-	shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(scl, scl, 0.0)).x, cs);
-	shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(scl, -scl, 0.0)).x, cs);
-	shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(-scl, scl, 0.0)).x, cs);
-	shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(-scl, -scl, 0.0)).x, cs);
+	
+	vec2 off = scl/shadow_res;
+
+	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;
 }
@@ -97,8 +100,7 @@ void main()
 		if (spos.z < near_split.z)
 		{
 			lpos = shadow_matrix[3]*spos;
-			lpos.xy *= shadow_res;
-
+			
 			float w = 1.0;
 			w -= max(spos.z-far_split.z, 0.0)/transition_domain.z;
 			shadow += pcfShadow(shadowMap3, lpos, 0.25)*w;
@@ -109,8 +111,7 @@ void main()
 		if (spos.z < near_split.y && spos.z > far_split.z)
 		{
 			lpos = shadow_matrix[2]*spos;
-			lpos.xy *= shadow_res;
-
+			
 			float w = 1.0;
 			w -= max(spos.z-far_split.y, 0.0)/transition_domain.y;
 			w -= max(near_split.z-spos.z, 0.0)/transition_domain.z;
@@ -121,8 +122,7 @@ void main()
 		if (spos.z < near_split.x && spos.z > far_split.y)
 		{
 			lpos = shadow_matrix[1]*spos;
-			lpos.xy *= shadow_res;
-
+			
 			float w = 1.0;
 			w -= max(spos.z-far_split.x, 0.0)/transition_domain.x;
 			w -= max(near_split.y-spos.z, 0.0)/transition_domain.y;
@@ -133,8 +133,7 @@ void main()
 		if (spos.z > far_split.x)
 		{
 			lpos = shadow_matrix[0]*spos;
-			lpos.xy *= shadow_res;
-				
+							
 			float w = 1.0;
 			w -= max(near_split.x-spos.z, 0.0)/transition_domain.x;
 				
diff --git a/indra/newview/app_settings/shaders/class2/deferred/alphaNonIndexedF.glsl b/indra/newview/app_settings/shaders/class2/deferred/alphaNonIndexedF.glsl
index aae6a070e2..4f6a88961b 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/alphaNonIndexedF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/alphaNonIndexedF.glsl
@@ -31,17 +31,16 @@ out vec4 frag_color;
 #define frag_color gl_FragColor
 #endif
 
-uniform sampler2DRectShadow shadowMap0;
-uniform sampler2DRectShadow shadowMap1;
-uniform sampler2DRectShadow shadowMap2;
-uniform sampler2DRectShadow shadowMap3;
+uniform sampler2DShadow shadowMap0;
+uniform sampler2DShadow shadowMap1;
+uniform sampler2DShadow shadowMap2;
+uniform sampler2DShadow shadowMap3;
 uniform sampler2DRect depthMap;
 uniform sampler2D diffuseMap;
 
 uniform mat4 shadow_matrix[6];
 uniform vec4 shadow_clip;
 uniform vec2 screen_res;
-uniform vec2 shadow_res;
 
 vec3 atmosLighting(vec3 light);
 vec3 scaleSoftClip(vec3 light);
@@ -54,6 +53,7 @@ VARYING vec3 vary_pointlight_col;
 VARYING vec2 vary_texcoord0;
 VARYING vec4 vertex_color;
 
+uniform vec2 shadow_res;
 uniform float shadow_bias;
 
 uniform mat4 inv_proj;
@@ -71,18 +71,20 @@ vec4 getPosition(vec2 pos_screen)
 	return pos;
 }
 
-float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
+float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
 {
 	stc.xyz /= stc.w;
 	stc.z += shadow_bias;
-	
+		
 	float cs = shadow2DRect(shadowMap, stc.xyz).x;
 	float shadow = cs;
+	
+	vec2 off = scl/shadow_res;
 
-	shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(scl, scl, 0.0)).x, cs);
-	shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(scl, -scl, 0.0)).x, cs);
-	shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(-scl, scl, 0.0)).x, cs);
-	shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(-scl, -scl, 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);
+	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(-off.x, -off.y, 0.0)).x, cs);
 			
 	return shadow/5.0;
 }
@@ -110,8 +112,7 @@ void main()
 		if (spos.z < near_split.z)
 		{
 			lpos = shadow_matrix[3]*spos;
-			lpos.xy *= shadow_res;
-
+			
 			float w = 1.0;
 			w -= max(spos.z-far_split.z, 0.0)/transition_domain.z;
 			shadow += pcfShadow(shadowMap3, lpos, 0.25)*w;
@@ -122,8 +123,7 @@ void main()
 		if (spos.z < near_split.y && spos.z > far_split.z)
 		{
 			lpos = shadow_matrix[2]*spos;
-			lpos.xy *= shadow_res;
-
+			
 			float w = 1.0;
 			w -= max(spos.z-far_split.y, 0.0)/transition_domain.y;
 			w -= max(near_split.z-spos.z, 0.0)/transition_domain.z;
@@ -134,8 +134,7 @@ void main()
 		if (spos.z < near_split.x && spos.z > far_split.y)
 		{
 			lpos = shadow_matrix[1]*spos;
-			lpos.xy *= shadow_res;
-
+			
 			float w = 1.0;
 			w -= max(spos.z-far_split.x, 0.0)/transition_domain.x;
 			w -= max(near_split.y-spos.z, 0.0)/transition_domain.y;
@@ -146,8 +145,7 @@ void main()
 		if (spos.z > far_split.x)
 		{
 			lpos = shadow_matrix[0]*spos;
-			lpos.xy *= shadow_res;
-				
+							
 			float w = 1.0;
 			w -= max(near_split.x-spos.z, 0.0)/transition_domain.x;
 				
diff --git a/indra/newview/app_settings/shaders/class2/deferred/alphaNonIndexedNoColorF.glsl b/indra/newview/app_settings/shaders/class2/deferred/alphaNonIndexedNoColorF.glsl
index d6848c8dc1..90cd0f8602 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/alphaNonIndexedNoColorF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/alphaNonIndexedNoColorF.glsl
@@ -33,17 +33,16 @@ out vec4 frag_color;
 
 uniform float minimum_alpha;
 
-uniform sampler2DRectShadow shadowMap0;
-uniform sampler2DRectShadow shadowMap1;
-uniform sampler2DRectShadow shadowMap2;
-uniform sampler2DRectShadow shadowMap3;
+uniform sampler2DShadow shadowMap0;
+uniform sampler2DShadow shadowMap1;
+uniform sampler2DShadow shadowMap2;
+uniform sampler2DShadow shadowMap3;
 uniform sampler2DRect depthMap;
 uniform sampler2D diffuseMap;
 
 uniform mat4 shadow_matrix[6];
 uniform vec4 shadow_clip;
 uniform vec2 screen_res;
-uniform vec2 shadow_res;
 
 vec3 atmosLighting(vec3 light);
 vec3 scaleSoftClip(vec3 light);
@@ -55,6 +54,8 @@ VARYING vec3 vary_position;
 VARYING vec3 vary_pointlight_col;
 VARYING vec2 vary_texcoord0;
 
+uniform vec2 shadow_res;
+
 uniform float shadow_bias;
 
 uniform mat4 inv_proj;
@@ -72,18 +73,20 @@ vec4 getPosition(vec2 pos_screen)
 	return pos;
 }
 
-float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
+float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
 {
 	stc.xyz /= stc.w;
 	stc.z += shadow_bias;
-	
-	float cs = shadow2DRect(shadowMap, stc.xyz).x;
+		
+	float cs = shadow2D(shadowMap, stc.xyz).x;
 	float shadow = cs;
 
-	shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(scl, scl, 0.0)).x, cs);
-	shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(scl, -scl, 0.0)).x, cs);
-	shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(-scl, scl, 0.0)).x, cs);
-	shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(-scl, -scl, 0.0)).x, cs);
+	vec2 off = scl/shadow_res;
+
+	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;
 }
@@ -118,8 +121,7 @@ void main()
 		if (spos.z < near_split.z)
 		{
 			lpos = shadow_matrix[3]*spos;
-			lpos.xy *= shadow_res;
-
+			
 			float w = 1.0;
 			w -= max(spos.z-far_split.z, 0.0)/transition_domain.z;
 			shadow += pcfShadow(shadowMap3, lpos, 0.25)*w;
@@ -130,8 +132,7 @@ void main()
 		if (spos.z < near_split.y && spos.z > far_split.z)
 		{
 			lpos = shadow_matrix[2]*spos;
-			lpos.xy *= shadow_res;
-
+			
 			float w = 1.0;
 			w -= max(spos.z-far_split.y, 0.0)/transition_domain.y;
 			w -= max(near_split.z-spos.z, 0.0)/transition_domain.z;
@@ -142,8 +143,7 @@ void main()
 		if (spos.z < near_split.x && spos.z > far_split.y)
 		{
 			lpos = shadow_matrix[1]*spos;
-			lpos.xy *= shadow_res;
-
+			
 			float w = 1.0;
 			w -= max(spos.z-far_split.x, 0.0)/transition_domain.x;
 			w -= max(near_split.y-spos.z, 0.0)/transition_domain.y;
@@ -154,8 +154,7 @@ void main()
 		if (spos.z > far_split.x)
 		{
 			lpos = shadow_matrix[0]*spos;
-			lpos.xy *= shadow_res;
-				
+							
 			float w = 1.0;
 			w -= max(near_split.x-spos.z, 0.0)/transition_domain.x;
 				
diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
index 8c4ccf9cb3..219ae687d5 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
@@ -35,10 +35,10 @@ out vec4 frag_color;
 
 uniform sampler2DRect depthMap;
 uniform sampler2DRect normalMap;
-uniform sampler2DRectShadow shadowMap0;
-uniform sampler2DRectShadow shadowMap1;
-uniform sampler2DRectShadow shadowMap2;
-uniform sampler2DRectShadow shadowMap3;
+uniform sampler2DShadow shadowMap0;
+uniform sampler2DShadow shadowMap1;
+uniform sampler2DShadow shadowMap2;
+uniform sampler2DShadow shadowMap3;
 uniform sampler2DShadow shadowMap4;
 uniform sampler2DShadow shadowMap5;
 
@@ -55,10 +55,10 @@ VARYING vec2 vary_fragcoord;
 
 uniform mat4 inv_proj;
 uniform vec2 screen_res;
-uniform vec2 shadow_res;
 uniform vec2 proj_shadow_res;
 uniform vec3 sun_dir;
 
+uniform vec2 shadow_res;
 uniform float shadow_bias;
 uniform float shadow_offset;
 
@@ -78,29 +78,32 @@ vec4 getPosition(vec2 pos_screen)
 	return pos;
 }
 
-float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
+float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
 {
 	stc.xyz /= stc.w;
-	stc.z += shadow_bias*scl;
-	
-	float cs = shadow2DRect(shadowMap, stc.xyz).x;
+	stc.z += shadow_bias;
+
+	float cs = shadow2D(shadowMap, stc.xyz).x;
 	float shadow = cs;
 
-	shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(1.5, 1.5, 0.0)).x, cs);
-	shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(1.5, -1.5, 0.0)).x, cs);
-	shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(-1.5, 1.5, 0.0)).x, cs);
-	shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(-1.5, -1.5, 0.0)).x, cs);
+	
+	vec2 off = 1.5/shadow_res;
+
+	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;
 	
 	//return shadow;
 }
 
-float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
+float pcfSpotShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
 {
 	stc.xyz /= stc.w;
 	stc.z += spot_shadow_bias*scl;
-	
+
 	float cs = shadow2D(shadowMap, stc.xyz).x;
 	float shadow = cs;
 
@@ -162,8 +165,7 @@ void main()
 			if (spos.z < near_split.z)
 			{
 				lpos = shadow_matrix[3]*spos;
-				lpos.xy *= shadow_res;
-
+				
 				float w = 1.0;
 				w -= max(spos.z-far_split.z, 0.0)/transition_domain.z;
 				shadow += pcfShadow(shadowMap3, lpos, 0.25)*w;
@@ -174,8 +176,7 @@ void main()
 			if (spos.z < near_split.y && spos.z > far_split.z)
 			{
 				lpos = shadow_matrix[2]*spos;
-				lpos.xy *= shadow_res;
-
+				
 				float w = 1.0;
 				w -= max(spos.z-far_split.y, 0.0)/transition_domain.y;
 				w -= max(near_split.z-spos.z, 0.0)/transition_domain.z;
@@ -186,7 +187,6 @@ void main()
 			if (spos.z < near_split.x && spos.z > far_split.y)
 			{
 				lpos = shadow_matrix[1]*spos;
-				lpos.xy *= shadow_res;
 
 				float w = 1.0;
 				w -= max(spos.z-far_split.x, 0.0)/transition_domain.x;
@@ -198,7 +198,6 @@ void main()
 			if (spos.z > far_split.x)
 			{
 				lpos = shadow_matrix[0]*spos;
-				lpos.xy *= shadow_res;
 				
 				float w = 1.0;
 				w -= max(near_split.x-spos.z, 0.0)/transition_domain.x;
@@ -237,11 +236,11 @@ void main()
 	
 	//spotlight shadow 1
 	vec4 lpos = shadow_matrix[4]*spos;
-	frag_color[2] = pcfShadow(shadowMap4, lpos, 0.8); 
+	frag_color[2] = pcfSpotShadow(shadowMap4, lpos, 0.8); 
 	
 	//spotlight shadow 2
 	lpos = shadow_matrix[5]*spos;
-	frag_color[3] = pcfShadow(shadowMap5, lpos, 0.8); 
+	frag_color[3] = pcfSpotShadow(shadowMap5, lpos, 0.8); 
 
 	//frag_color.rgb = pos.xyz;
 	//frag_color.b = shadow;
diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
index 02075a7687..f6b009577a 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
@@ -34,10 +34,10 @@ out vec4 frag_color;
 
 uniform sampler2DRect depthMap;
 uniform sampler2DRect normalMap;
-uniform sampler2DRectShadow shadowMap0;
-uniform sampler2DRectShadow shadowMap1;
-uniform sampler2DRectShadow shadowMap2;
-uniform sampler2DRectShadow shadowMap3;
+uniform sampler2DShadow shadowMap0;
+uniform sampler2DShadow shadowMap1;
+uniform sampler2DShadow shadowMap2;
+uniform sampler2DShadow shadowMap3;
 uniform sampler2DShadow shadowMap4;
 uniform sampler2DShadow shadowMap5;
 uniform sampler2D noiseMap;
@@ -55,10 +55,11 @@ VARYING vec2 vary_fragcoord;
 
 uniform mat4 inv_proj;
 uniform vec2 screen_res;
-uniform vec2 shadow_res;
 uniform vec2 proj_shadow_res;
 uniform vec3 sun_dir;
 
+uniform vec2 shadow_res;
+
 uniform float shadow_bias;
 uniform float shadow_offset;
 
@@ -139,29 +140,31 @@ float calcAmbientOcclusion(vec4 pos, vec3 norm)
 	return min(ret, 1.0);
 }
 
-float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
+float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
 {
 	stc.xyz /= stc.w;
-	stc.z += shadow_bias*scl;
-	
-	float cs = shadow2DRect(shadowMap, stc.xyz).x;
+	stc.z += shadow_bias;
+
+	float cs = shadow2D(shadowMap, stc.xyz).x;
 	float shadow = cs;
 
-	shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(1.5, 1.5, 0.0)).x, cs);
-	shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(1.5, -1.5, 0.0)).x, cs);
-	shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(-1.5, 1.5, 0.0)).x, cs);
-	shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(-1.5, -1.5, 0.0)).x, cs);
+	vec2 off = 1.5/shadow_res;
+
+	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;
 	
 	//return shadow;
 }
 
-float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
+float pcfSpotShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
 {
 	stc.xyz /= stc.w;
 	stc.z += spot_shadow_bias*scl;
-	
+		
 	float cs = shadow2D(shadowMap, stc.xyz).x;
 	float shadow = cs;
 
@@ -223,8 +226,7 @@ void main()
 			if (spos.z < near_split.z)
 			{
 				lpos = shadow_matrix[3]*spos;
-				lpos.xy *= shadow_res;
-
+				
 				float w = 1.0;
 				w -= max(spos.z-far_split.z, 0.0)/transition_domain.z;
 				shadow += pcfShadow(shadowMap3, lpos, 0.25)*w;
@@ -235,8 +237,7 @@ void main()
 			if (spos.z < near_split.y && spos.z > far_split.z)
 			{
 				lpos = shadow_matrix[2]*spos;
-				lpos.xy *= shadow_res;
-
+				
 				float w = 1.0;
 				w -= max(spos.z-far_split.y, 0.0)/transition_domain.y;
 				w -= max(near_split.z-spos.z, 0.0)/transition_domain.z;
@@ -247,8 +248,7 @@ void main()
 			if (spos.z < near_split.x && spos.z > far_split.y)
 			{
 				lpos = shadow_matrix[1]*spos;
-				lpos.xy *= shadow_res;
-
+				
 				float w = 1.0;
 				w -= max(spos.z-far_split.x, 0.0)/transition_domain.x;
 				w -= max(near_split.y-spos.z, 0.0)/transition_domain.y;
@@ -259,8 +259,7 @@ void main()
 			if (spos.z > far_split.x)
 			{
 				lpos = shadow_matrix[0]*spos;
-				lpos.xy *= shadow_res;
-				
+								
 				float w = 1.0;
 				w -= max(near_split.x-spos.z, 0.0)/transition_domain.x;
 				
@@ -298,11 +297,11 @@ void main()
 	
 	//spotlight shadow 1
 	vec4 lpos = shadow_matrix[4]*spos;
-	frag_color[2] = pcfShadow(shadowMap4, lpos, 0.8); 
+	frag_color[2] = pcfSpotShadow(shadowMap4, lpos, 0.8); 
 	
 	//spotlight shadow 2
 	lpos = shadow_matrix[5]*spos;
-	frag_color[3] = pcfShadow(shadowMap5, lpos, 0.8); 
+	frag_color[3] = pcfSpotShadow(shadowMap5, lpos, 0.8); 
 
 	//frag_color.rgb = pos.xyz;
 	//frag_color.b = shadow;
diff --git a/indra/newview/pipeline.cpp b/indra/newview/pipeline.cpp
index a8dd6cf908..4ad0497954 100644
--- a/indra/newview/pipeline.cpp
+++ b/indra/newview/pipeline.cpp
@@ -885,7 +885,7 @@ bool LLPipeline::allocateScreenBuffer(U32 resX, U32 resY, U32 samples)
 		{ //allocate 4 sun shadow maps
 			for (U32 i = 0; i < 4; i++)
 			{
-				if (!mShadow[i].allocate(U32(resX*scale),U32(resY*scale), 0, TRUE, FALSE, LLTexUnit::TT_RECT_TEXTURE)) return false;
+				if (!mShadow[i].allocate(U32(resX*scale),U32(resY*scale), 0, TRUE, FALSE, LLTexUnit::TT_TEXTURE)) return false;
 			}
 		}
 		else
@@ -7278,7 +7278,7 @@ void LLPipeline::bindDeferredShader(LLGLSLShader& shader, U32 light_index, U32 n
 
 	for (U32 i = 0; i < 4; i++)
 	{
-		channel = shader.enableTexture(LLShaderMgr::DEFERRED_SHADOW0+i, LLTexUnit::TT_RECT_TEXTURE);
+		channel = shader.enableTexture(LLShaderMgr::DEFERRED_SHADOW0+i, LLTexUnit::TT_TEXTURE);
 		stop_glerror();
 		if (channel > -1)
 		{
@@ -7288,8 +7288,8 @@ void LLPipeline::bindDeferredShader(LLGLSLShader& shader, U32 light_index, U32 n
 			gGL.getTexUnit(channel)->setTextureAddressMode(LLTexUnit::TAM_CLAMP);
 			stop_glerror();
 			
-			glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_COMPARE_MODE_ARB, GL_COMPARE_R_TO_TEXTURE_ARB);
-			glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_COMPARE_FUNC_ARB, GL_LEQUAL);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, GL_COMPARE_R_TO_TEXTURE_ARB);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC_ARB, GL_LEQUAL);
 			stop_glerror();
 		}
 	}
@@ -7369,13 +7369,13 @@ void LLPipeline::bindDeferredShader(LLGLSLShader& shader, U32 light_index, U32 n
 								matrix_nondiag, matrix_nondiag, matrix_diag};
 	shader.uniformMatrix3fv(LLShaderMgr::DEFERRED_SSAO_EFFECT_MAT, 1, GL_FALSE, ssao_effect_mat);
 
-	F32 shadow_offset_error = 1.f + RenderShadowOffsetError * fabsf(LLViewerCamera::getInstance()->getOrigin().mV[2]);
-	F32 shadow_bias_error = 1.f + RenderShadowBiasError * fabsf(LLViewerCamera::getInstance()->getOrigin().mV[2]);
+	//F32 shadow_offset_error = 1.f + RenderShadowOffsetError * fabsf(LLViewerCamera::getInstance()->getOrigin().mV[2]);
+	F32 shadow_bias_error = RenderShadowBiasError * fabsf(LLViewerCamera::getInstance()->getOrigin().mV[2])/3000.f;
 
 	shader.uniform2f(LLShaderMgr::DEFERRED_SCREEN_RES, mDeferredScreen.getWidth(), mDeferredScreen.getHeight());
 	shader.uniform1f(LLShaderMgr::DEFERRED_NEAR_CLIP, LLViewerCamera::getInstance()->getNear()*2.f);
-	shader.uniform1f (LLShaderMgr::DEFERRED_SHADOW_OFFSET, RenderShadowOffset*shadow_offset_error);
-	shader.uniform1f(LLShaderMgr::DEFERRED_SHADOW_BIAS, RenderShadowBias*shadow_bias_error);
+	shader.uniform1f (LLShaderMgr::DEFERRED_SHADOW_OFFSET, RenderShadowOffset); //*shadow_offset_error);
+	shader.uniform1f(LLShaderMgr::DEFERRED_SHADOW_BIAS, RenderShadowBias+shadow_bias_error);
 	shader.uniform1f(LLShaderMgr::DEFERRED_SPOT_SHADOW_OFFSET, RenderSpotShadowOffset);
 	shader.uniform1f(LLShaderMgr::DEFERRED_SPOT_SHADOW_BIAS, RenderSpotShadowBias);	
 
@@ -8099,9 +8099,9 @@ void LLPipeline::unbindDeferredShader(LLGLSLShader &shader)
 
 	for (U32 i = 0; i < 4; i++)
 	{
-		if (shader.disableTexture(LLShaderMgr::DEFERRED_SHADOW0+i, LLTexUnit::TT_RECT_TEXTURE) > -1)
+		if (shader.disableTexture(LLShaderMgr::DEFERRED_SHADOW0+i) > -1)
 		{
-			glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_COMPARE_MODE_ARB, GL_NONE);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, GL_NONE);
 		}
 	}
 
@@ -8517,6 +8517,7 @@ void LLPipeline::renderShadow(glh::matrix4f& view, glh::matrix4f& proj, LLCamera
 		gGL.setColorMask(false, false);
 	
 		LLFastTimer ftm(FTM_SHADOW_SIMPLE);
+		
 		gGL.getTexUnit(0)->disable();
 		for (U32 i = 0; i < sizeof(types)/sizeof(U32); ++i)
 		{