Pull and merge from ssh://hg@bitbucket.org/lindenlab/viewer-development.

6 files changed, 99 insertions, 116 deletions

diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index e4337cf8b6..47e944bc26 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -8112,7 +8112,7 @@
     <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 8db4cb58cf..12706f130b 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];
@@ -58,22 +58,22 @@ uniform float shadow_bias;
 
 uniform mat4 inv_proj;
 
-float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc)
+float pcfShadow(sampler2DShadow shadowMap, vec4 stc)
 {
 	stc.xyz /= stc.w;
 	stc.z += shadow_bias;
-
-	stc.x = floor(stc.x + fract(stc.y*12345)); // add some chaotic jitter to X sample pos according to Y to disguise the snapping going on here
+		
+	stc.x = floor(stc.x*shadow_res.x + fract(stc.y*shadow_res.y*12345))/shadow_res.x; // add some chaotic jitter to X sample pos according to Y to disguise the snapping going on here
 	
-	float cs = shadow2DRect(shadowMap, stc.xyz).x;
+	float cs = shadow2D(shadowMap, stc.xyz).x;
 	float shadow = cs;
-
-        shadow += shadow2DRect(shadowMap, stc.xyz+vec3(2.0, 1.5, 0.0)).x;
-        shadow += shadow2DRect(shadowMap, stc.xyz+vec3(1.0, -1.5, 0.0)).x;
-        shadow += shadow2DRect(shadowMap, stc.xyz+vec3(-1.0, 1.5, 0.0)).x;
-        shadow += shadow2DRect(shadowMap, stc.xyz+vec3(-2.0, -1.5, 0.0)).x;
-                        
-        return shadow*0.2;
+	
+    shadow += shadow2D(shadowMap, stc.xyz+vec3(2.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x;
+    shadow += shadow2D(shadowMap, stc.xyz+vec3(1.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x;
+    shadow += shadow2D(shadowMap, stc.xyz+vec3(-1.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x;
+    shadow += shadow2D(shadowMap, stc.xyz+vec3(-2.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x;
+                       
+    return shadow*0.2;
 }
 
 
@@ -99,8 +99,7 @@ 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)*w;
@@ -111,8 +110,7 @@ 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;
@@ -123,8 +121,7 @@ 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;
@@ -135,8 +132,7 @@ 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 33958a5010..228dc104ac 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;
@@ -71,22 +71,22 @@ vec4 getPosition(vec2 pos_screen)
 	return pos;
 }
 
-float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc)
+float pcfShadow(sampler2DShadow shadowMap, vec4 stc)
 {
 	stc.xyz /= stc.w;
 	stc.z += shadow_bias;
 
-	stc.x = floor(stc.x + fract(stc.y*12345)); // add some chaotic jitter to X sample pos according to Y to disguise the snapping going on here
+	stc.x = floor(stc.x*shadow_res.x + fract(stc.y*12345))/shadow_res.x; // add some chaotic jitter to X sample pos according to Y to disguise the snapping going on here
 	
-	float cs = shadow2DRect(shadowMap, stc.xyz).x;
+	float cs = shadow2D(shadowMap, stc.xyz).x;
 	float shadow = cs;
-
-        shadow += shadow2DRect(shadowMap, stc.xyz+vec3(2.0, 1.5, 0.0)).x;
-        shadow += shadow2DRect(shadowMap, stc.xyz+vec3(1.0, -1.5, 0.0)).x;
-        shadow += shadow2DRect(shadowMap, stc.xyz+vec3(-1.0, 1.5, 0.0)).x;
-        shadow += shadow2DRect(shadowMap, stc.xyz+vec3(-2.0, -1.5, 0.0)).x;
+	
+    shadow += shadow2D(shadowMap, stc.xyz+vec3(2.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x;
+    shadow += shadow2D(shadowMap, stc.xyz+vec3(1.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x;
+    shadow += shadow2D(shadowMap, stc.xyz+vec3(-1.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x;
+    shadow += shadow2D(shadowMap, stc.xyz+vec3(-2.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x;
                         
-        return shadow*0.2;
+    return shadow*0.2;
 }
 
 
@@ -112,8 +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)*w;
@@ -124,8 +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;
@@ -136,8 +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;
@@ -148,8 +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 2093fc37dc..c3950a10e1 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;
@@ -72,20 +73,20 @@ vec4 getPosition(vec2 pos_screen)
 	return pos;
 }
 
-float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc)
+float pcfShadow(sampler2DShadow shadowMap, vec4 stc)
 {
 	stc.xyz /= stc.w;
 	stc.z += shadow_bias;
 
-	stc.x = floor(stc.x + fract(stc.y*12345)); // add some chaotic jitter to X sample pos according to Y to disguise the snapping going on here
+	stc.x = floor(stc.x*shadow_res.x + fract(stc.y*12345))/shadow_res.x; // add some chaotic jitter to X sample pos according to Y to disguise the snapping going on here
+	float cs = shadow2D(shadowMap, stc.xyz).x;
 	
-	float cs = shadow2DRect(shadowMap, stc.xyz).x;
 	float shadow = cs;
 
-        shadow += shadow2DRect(shadowMap, stc.xyz+vec3(2.0, 1.5, 0.0)).x;
-        shadow += shadow2DRect(shadowMap, stc.xyz+vec3(1.0, -1.5, 0.0)).x;
-        shadow += shadow2DRect(shadowMap, stc.xyz+vec3(-1.0, 1.5, 0.0)).x;
-        shadow += shadow2DRect(shadowMap, stc.xyz+vec3(-2.0, -1.5, 0.0)).x;
+        shadow += shadow2D(shadowMap, stc.xyz+vec3(2.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x;
+        shadow += shadow2D(shadowMap, stc.xyz+vec3(1.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x;
+        shadow += shadow2D(shadowMap, stc.xyz+vec3(-1.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x;
+        shadow += shadow2D(shadowMap, stc.xyz+vec3(-2.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x;
                         
         return shadow*0.2;
 }
@@ -120,8 +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)*w;
@@ -132,8 +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;
@@ -144,8 +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;
@@ -156,8 +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 db3d760359..c1495b145e 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;
 
@@ -78,30 +78,31 @@ vec4 getPosition(vec2 pos_screen)
 	return pos;
 }
 
-float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl, vec2 pos_screen)
+float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl, vec2 pos_screen)
 {
 	stc.xyz /= stc.w;
-	stc.z += shadow_bias*scl;
+	stc.z += shadow_bias;
 
-	stc.x = floor(stc.x + fract(pos_screen.y*0.666666666)); // add some jitter to X sample pos according to Y to disguise the snapping going on here
+	stc.x = floor(stc.x*shadow_res.x + fract(pos_screen.y*0.666666666))/shadow_res.x; // add some jitter to X sample pos according to Y to disguise the snapping going on here
+	float cs = shadow2D(shadowMap, stc.xyz).x;
 
-	float cs = shadow2DRect(shadowMap, stc.xyz).x;
 	float shadow = cs;
 
-	shadow += shadow2DRect(shadowMap, stc.xyz+vec3(2.0, 1.5, 0.0)).x;
-	shadow += shadow2DRect(shadowMap, stc.xyz+vec3(1.0, -1.5, 0.0)).x;
-	shadow += shadow2DRect(shadowMap, stc.xyz+vec3(-2.0, 1.5, 0.0)).x;
-	shadow += shadow2DRect(shadowMap, stc.xyz+vec3(-1.0, -1.5, 0.0)).x;
+	shadow += shadow2D(shadowMap, stc.xyz+vec3(2.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x;
+	shadow += shadow2D(shadowMap, stc.xyz+vec3(1.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x;
+	shadow += shadow2D(shadowMap, stc.xyz+vec3(-2.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x;
+	shadow += shadow2D(shadowMap, stc.xyz+vec3(-1.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x;
+
 			
-        return shadow*0.2;
+    return shadow*0.2;
 }
 
-float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl, vec2 pos_screen)
+float pcfSpotShadow(sampler2DShadow shadowMap, vec4 stc, float scl, vec2 pos_screen)
 {
 	stc.xyz /= stc.w;
 	stc.z += spot_shadow_bias*scl;
 	stc.x = floor(proj_shadow_res.x * stc.x + fract(pos_screen.y*0.666666666)) / proj_shadow_res.x; // snap
-	
+
 	float cs = shadow2D(shadowMap, stc.xyz).x;
 	float shadow = cs;
 
@@ -162,8 +163,7 @@ 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, pos_screen)*w;
@@ -174,8 +174,7 @@ 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 +185,6 @@ 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 +196,6 @@ 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 +234,11 @@ void main()
 	
 	//spotlight shadow 1
 	vec4 lpos = shadow_matrix[4]*spos;
-	frag_color[2] = pcfShadow(shadowMap4, lpos, 0.8, pos_screen); 
+	frag_color[2] = pcfSpotShadow(shadowMap4, lpos, 0.8, pos_screen); 
 	
 	//spotlight shadow 2
 	lpos = shadow_matrix[5]*spos;
-	frag_color[3] = pcfShadow(shadowMap5, lpos, 0.8, pos_screen); 
+	frag_color[3] = pcfSpotShadow(shadowMap5, lpos, 0.8, pos_screen); 
 
 	//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 dfe108eb01..039fca9df2 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;
 
@@ -139,30 +140,30 @@ float calcAmbientOcclusion(vec4 pos, vec3 norm)
 	return min(ret, 1.0);
 }
 
-float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl, vec2 pos_screen)
+float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl, vec2 pos_screen)
 {
 	stc.xyz /= stc.w;
-	stc.z += shadow_bias*scl;
+	stc.z += shadow_bias;
 
-	stc.x = floor(stc.x + fract(pos_screen.y*0.666666666));
+	stc.x = floor(stc.x*shadow_res.x + fract(pos_screen.y*0.666666666))/shadow_res.x;
+	float cs = shadow2D(shadowMap, stc.xyz).x;
 	
-	float cs = shadow2DRect(shadowMap, stc.xyz).x;
 	float shadow = cs;
 	
-	shadow += shadow2DRect(shadowMap, stc.xyz+vec3(2.0, 1.5, 0.0)).x;
-        shadow += shadow2DRect(shadowMap, stc.xyz+vec3(1.0, -1.5, 0.0)).x;
-        shadow += shadow2DRect(shadowMap, stc.xyz+vec3(-1.0, 1.5, 0.0)).x;
-        shadow += shadow2DRect(shadowMap, stc.xyz+vec3(-2.0, -1.5, 0.0)).x;
-                        
+	shadow += shadow2D(shadowMap, stc.xyz+vec3(2.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x;
+    shadow += shadow2D(shadowMap, stc.xyz+vec3(1.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x;
+    shadow += shadow2D(shadowMap, stc.xyz+vec3(-1.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x;
+    shadow += shadow2D(shadowMap, stc.xyz+vec3(-2.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x;
+	         
         return shadow*0.2;
 }
 
-float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl, vec2 pos_screen)
+float pcfSpotShadow(sampler2DShadow shadowMap, vec4 stc, float scl, vec2 pos_screen)
 {
 	stc.xyz /= stc.w;
 	stc.z += spot_shadow_bias*scl;
 	stc.x = floor(proj_shadow_res.x * stc.x + fract(pos_screen.y*0.666666666)) / proj_shadow_res.x; // snap
-	
+		
 	float cs = shadow2D(shadowMap, stc.xyz).x;
 	float shadow = cs;
 
@@ -223,8 +224,7 @@ 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, pos_screen)*w;
@@ -235,8 +235,7 @@ 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 +246,7 @@ 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 +257,7 @@ 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 +295,11 @@ void main()
 	
 	//spotlight shadow 1
 	vec4 lpos = shadow_matrix[4]*spos;
-	frag_color[2] = pcfShadow(shadowMap4, lpos, 0.8, pos_screen);
+	frag_color[2] = pcfSpotShadow(shadowMap4, lpos, 0.8, pos_screen);
 	
 	//spotlight shadow 2
 	lpos = shadow_matrix[5]*spos;
-	frag_color[3] = pcfShadow(shadowMap5, lpos, 0.8, pos_screen);
+	frag_color[3] = pcfSpotShadow(shadowMap5, lpos, 0.8, pos_screen);
 
 	//frag_color.rgb = pos.xyz;
 	//frag_color.b = shadow;