STORM-1819: Ternary/graded shadow support

Coalesced patchset.

5 files changed, 127 insertions, 84 deletions

diff --git a/indra/newview/app_settings/shaders/class2/deferred/alphaF.glsl b/indra/newview/app_settings/shaders/class2/deferred/alphaF.glsl
index 08f6ec63fe..70a5912258 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/alphaF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/alphaF.glsl
@@ -58,20 +58,28 @@ uniform float shadow_bias;
 
 uniform mat4 inv_proj;
 
-float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
+float mex(float a, float b)
+{
+  return a;
+}
+
+float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc)
 {
 	stc.xyz /= stc.w;
 	stc.z += shadow_bias;
+
+	//stc.x = floor(stc.x + fract(stc.y) * 1.5);
+	stc.x = floor(stc.x + fract(stc.y*12345));
 	
 	float cs = shadow2DRect(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);
-			
-	return shadow/5.0;
+        shadow += mex(shadow2DRect(shadowMap, stc.xyz+vec3(2.0, 1.5, 0.0)).x,cs);
+        shadow += mex(shadow2DRect(shadowMap, stc.xyz+vec3(1.0, -1.5, 0.0)).x,cs);
+        shadow += mex(shadow2DRect(shadowMap, stc.xyz+vec3(-1.0, 1.5, 0.0)).x,cs);
+        shadow += mex(shadow2DRect(shadowMap, stc.xyz+vec3(-2.0, -1.5, 0.0)).x,cs);
+                        
+        return shadow*0.2;
 }
 
 
@@ -101,7 +109,7 @@ void main()
 
 			float w = 1.0;
 			w -= max(spos.z-far_split.z, 0.0)/transition_domain.z;
-			shadow += pcfShadow(shadowMap3, lpos, 0.25)*w;
+			shadow += pcfShadow(shadowMap3, lpos)*w;
 			weight += w;
 			shadow += max((pos.z+shadow_clip.z)/(shadow_clip.z-shadow_clip.w)*2.0-1.0, 0.0);
 		}
@@ -114,7 +122,7 @@ void main()
 			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;
-			shadow += pcfShadow(shadowMap2, lpos, 0.75)*w;
+			shadow += pcfShadow(shadowMap2, lpos)*w;
 			weight += w;
 		}
 
@@ -126,7 +134,7 @@ void main()
 			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;
-			shadow += pcfShadow(shadowMap1, lpos, 0.75)*w;
+			shadow += pcfShadow(shadowMap1, lpos)*w;
 			weight += w;
 		}
 
@@ -138,7 +146,7 @@ void main()
 			float w = 1.0;
 			w -= max(near_split.x-spos.z, 0.0)/transition_domain.x;
 				
-			shadow += pcfShadow(shadowMap0, lpos, 1.0)*w;
+			shadow += pcfShadow(shadowMap0, lpos)*w;
 			weight += w;
 		}
 		
diff --git a/indra/newview/app_settings/shaders/class2/deferred/alphaNonIndexedF.glsl b/indra/newview/app_settings/shaders/class2/deferred/alphaNonIndexedF.glsl
index aae6a070e2..5fc4fd72ef 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/alphaNonIndexedF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/alphaNonIndexedF.glsl
@@ -71,20 +71,28 @@ vec4 getPosition(vec2 pos_screen)
 	return pos;
 }
 
-float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
+float mex(float a, float b)
+{
+  return a;
+}
+
+float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc)
 {
 	stc.xyz /= stc.w;
 	stc.z += shadow_bias;
+
+	//stc.x = floor(stc.x + fract(stc.y) * 1.5);
+	stc.x = floor(stc.x + fract(stc.y*12345));
 	
 	float cs = shadow2DRect(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);
-			
-	return shadow/5.0;
+        shadow += mex(shadow2DRect(shadowMap, stc.xyz+vec3(2.0, 1.5, 0.0)).x,cs);
+        shadow += mex(shadow2DRect(shadowMap, stc.xyz+vec3(1.0, -1.5, 0.0)).x,cs);
+        shadow += mex(shadow2DRect(shadowMap, stc.xyz+vec3(-1.0, 1.5, 0.0)).x,cs);
+        shadow += mex(shadow2DRect(shadowMap, stc.xyz+vec3(-2.0, -1.5, 0.0)).x,cs);
+                        
+        return shadow*0.2;
 }
 
 
@@ -114,7 +122,7 @@ void main()
 
 			float w = 1.0;
 			w -= max(spos.z-far_split.z, 0.0)/transition_domain.z;
-			shadow += pcfShadow(shadowMap3, lpos, 0.25)*w;
+			shadow += pcfShadow(shadowMap3, lpos)*w;
 			weight += w;
 			shadow += max((pos.z+shadow_clip.z)/(shadow_clip.z-shadow_clip.w)*2.0-1.0, 0.0);
 		}
@@ -127,7 +135,7 @@ void main()
 			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;
-			shadow += pcfShadow(shadowMap2, lpos, 0.75)*w;
+			shadow += pcfShadow(shadowMap2, lpos)*w;
 			weight += w;
 		}
 
@@ -139,7 +147,7 @@ void main()
 			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;
-			shadow += pcfShadow(shadowMap1, lpos, 0.75)*w;
+			shadow += pcfShadow(shadowMap1, lpos)*w;
 			weight += w;
 		}
 
@@ -151,7 +159,7 @@ void main()
 			float w = 1.0;
 			w -= max(near_split.x-spos.z, 0.0)/transition_domain.x;
 				
-			shadow += pcfShadow(shadowMap0, lpos, 1.0)*w;
+			shadow += pcfShadow(shadowMap0, lpos)*w;
 			weight += w;
 		}
 		
diff --git a/indra/newview/app_settings/shaders/class2/deferred/alphaNonIndexedNoColorF.glsl b/indra/newview/app_settings/shaders/class2/deferred/alphaNonIndexedNoColorF.glsl
index 931577359e..785d50b853 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/alphaNonIndexedNoColorF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/alphaNonIndexedNoColorF.glsl
@@ -70,20 +70,28 @@ vec4 getPosition(vec2 pos_screen)
 	return pos;
 }
 
-float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
+float mex(float a, float b)
+{
+  return a;
+}
+
+float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc)
 {
 	stc.xyz /= stc.w;
 	stc.z += shadow_bias;
+
+	//stc.x = floor(stc.x + fract(stc.y) * 1.5);
+	stc.x = floor(stc.x + fract(stc.y*12345));
 	
 	float cs = shadow2DRect(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);
-			
-	return shadow/5.0;
+        shadow += mex(shadow2DRect(shadowMap, stc.xyz+vec3(2.0, 1.5, 0.0)).x,cs);
+        shadow += mex(shadow2DRect(shadowMap, stc.xyz+vec3(1.0, -1.5, 0.0)).x,cs);
+        shadow += mex(shadow2DRect(shadowMap, stc.xyz+vec3(-1.0, 1.5, 0.0)).x,cs);
+        shadow += mex(shadow2DRect(shadowMap, stc.xyz+vec3(-2.0, -1.5, 0.0)).x,cs);
+                        
+        return shadow*0.2;
 }
 
 
@@ -113,7 +121,7 @@ void main()
 
 			float w = 1.0;
 			w -= max(spos.z-far_split.z, 0.0)/transition_domain.z;
-			shadow += pcfShadow(shadowMap3, lpos, 0.25)*w;
+			shadow += pcfShadow(shadowMap3, lpos)*w;
 			weight += w;
 			shadow += max((pos.z+shadow_clip.z)/(shadow_clip.z-shadow_clip.w)*2.0-1.0, 0.0);
 		}
@@ -126,7 +134,7 @@ void main()
 			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;
-			shadow += pcfShadow(shadowMap2, lpos, 0.75)*w;
+			shadow += pcfShadow(shadowMap2, lpos)*w;
 			weight += w;
 		}
 
@@ -138,7 +146,7 @@ void main()
 			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;
-			shadow += pcfShadow(shadowMap1, lpos, 0.75)*w;
+			shadow += pcfShadow(shadowMap1, lpos)*w;
 			weight += w;
 		}
 
@@ -150,7 +158,7 @@ void main()
 			float w = 1.0;
 			w -= max(near_split.x-spos.z, 0.0)/transition_domain.x;
 				
-			shadow += pcfShadow(shadowMap0, lpos, 1.0)*w;
+			shadow += pcfShadow(shadowMap0, lpos)*w;
 			weight += w;
 		}
 		
diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
index 8c4ccf9cb3..b0034addb5 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
@@ -78,42 +78,56 @@ vec4 getPosition(vec2 pos_screen)
 	return pos;
 }
 
-float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
+float mex(float a, float b)
+{
+  return a;
+}
+
+float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl, vec2 pos_screen)
 {
 	stc.xyz /= stc.w;
 	stc.z += shadow_bias*scl;
-	
+
+	////stc.x = floor(stc.x + fract(stc.y*12345));
+	//stc.x = floor(stc.x + fract(stc.y));
+	  stc.x = floor(stc.x + fract(pos_screen.y*0.666666666));
+
+	//stc.x = floor(stc.x);
+	//stc.y = floor(stc.y);
+
+	//stc.x += 0.5;
+
 	float cs = shadow2DRect(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);
-			
-	return shadow/5.0;
-	
 	//return shadow;
+
+	shadow += mex(shadow2DRect(shadowMap, stc.xyz+vec3(2.0, 1.5, 0.0)).x,cs);
+	shadow += mex(shadow2DRect(shadowMap, stc.xyz+vec3(1.0, -1.5, 0.0)).x,cs);
+	shadow += mex(shadow2DRect(shadowMap, stc.xyz+vec3(-2.0, 1.5, 0.0)).x,cs);
+	shadow += mex(shadow2DRect(shadowMap, stc.xyz+vec3(-1.0, -1.5, 0.0)).x,cs);
+			
+        return shadow*0.2;
 }
 
-float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
+float pcfShadow(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;
 
-	vec2 off = 1.5/proj_shadow_res;
+	vec2 off = 1.0/proj_shadow_res;
+	off.y *= 1.5;
 	
-	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;
+	shadow += mex(shadow2D(shadowMap, stc.xyz+vec3(off.x*2.0, off.y, 0.0)).x, cs);
+	shadow += mex(shadow2D(shadowMap, stc.xyz+vec3(off.x, -off.y, 0.0)).x, cs);
+	shadow += mex(shadow2D(shadowMap, stc.xyz+vec3(-off.x, off.y, 0.0)).x, cs);
+	shadow += mex(shadow2D(shadowMap, stc.xyz+vec3(-off.x*2.0, -off.y, 0.0)).x, cs);
+
+        return shadow*0.2;
 }
 
 void main() 
@@ -166,7 +180,7 @@ void main()
 
 				float w = 1.0;
 				w -= max(spos.z-far_split.z, 0.0)/transition_domain.z;
-				shadow += pcfShadow(shadowMap3, lpos, 0.25)*w;
+				shadow += pcfShadow(shadowMap3, lpos, 0.25, pos_screen)*w;
 				weight += w;
 				shadow += max((pos.z+shadow_clip.z)/(shadow_clip.z-shadow_clip.w)*2.0-1.0, 0.0);
 			}
@@ -179,7 +193,7 @@ void main()
 				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;
-				shadow += pcfShadow(shadowMap2, lpos, 0.75)*w;
+				shadow += pcfShadow(shadowMap2, lpos, 0.5, pos_screen)*w;
 				weight += w;
 			}
 
@@ -191,7 +205,7 @@ void main()
 				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;
-				shadow += pcfShadow(shadowMap1, lpos, 0.75)*w;
+				shadow += pcfShadow(shadowMap1, lpos, 0.75, pos_screen)*w;
 				weight += w;
 			}
 
@@ -203,7 +217,7 @@ void main()
 				float w = 1.0;
 				w -= max(near_split.x-spos.z, 0.0)/transition_domain.x;
 				
-				shadow += pcfShadow(shadowMap0, lpos, 1.0)*w;
+				shadow += pcfShadow(shadowMap0, lpos, 1.0, pos_screen)*w;
 				weight += w;
 			}
 		
@@ -237,11 +251,11 @@ void main()
 	
 	//spotlight shadow 1
 	vec4 lpos = shadow_matrix[4]*spos;
-	frag_color[2] = pcfShadow(shadowMap4, lpos, 0.8); 
+	frag_color[2] = pcfShadow(shadowMap4, lpos, 0.8, pos_screen); 
 	
 	//spotlight shadow 2
 	lpos = shadow_matrix[5]*spos;
-	frag_color[3] = pcfShadow(shadowMap5, lpos, 0.8); 
+	frag_color[3] = pcfShadow(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 02075a7687..8aee76d033 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
@@ -90,7 +90,7 @@ vec2 getKern(int i)
 	kern[5] = vec2(-0.7071, -0.7071) * 0.750*0.750;
 	kern[6] = vec2(-0.7071, 0.7071) * 0.875*0.875;
 	kern[7] = vec2(0.7071, -0.7071) * 1.000*1.000;
-	
+       
 	return kern[i];
 }
 
@@ -139,42 +139,47 @@ float calcAmbientOcclusion(vec4 pos, vec3 norm)
 	return min(ret, 1.0);
 }
 
-float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
+float mex(float a, float b)
+{
+  return a;
+}
+
+float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl, vec2 pos_screen)
 {
 	stc.xyz /= stc.w;
 	stc.z += shadow_bias*scl;
+
+	stc.x = floor(stc.x + fract(pos_screen.y*0.666666666));
 	
 	float cs = shadow2DRect(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);
-			
-	return shadow/5.0;
 	
-	//return shadow;
+	shadow += mex(shadow2DRect(shadowMap, stc.xyz+vec3(2.0, 1.5, 0.0)).x,cs);
+        shadow += mex(shadow2DRect(shadowMap, stc.xyz+vec3(1.0, -1.5, 0.0)).x,cs);
+        shadow += mex(shadow2DRect(shadowMap, stc.xyz+vec3(-1.0, 1.5, 0.0)).x,cs);
+        shadow += mex(shadow2DRect(shadowMap, stc.xyz+vec3(-2.0, -1.5, 0.0)).x,cs);
+                        
+        return shadow*0.2;
 }
 
-float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
+float pcfShadow(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;
 
-	vec2 off = 1.5/proj_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);
+	vec2 off = 1.0/proj_shadow_res;
+	off.y *= 1.5;
 	
-	return shadow/5.0;
-	
-	//return shadow;
+	shadow += mex(shadow2D(shadowMap, stc.xyz+vec3(off.x*2.0, off.y, 0.0)).x, cs);
+	shadow += mex(shadow2D(shadowMap, stc.xyz+vec3(off.x, -off.y, 0.0)).x, cs);
+	shadow += mex(shadow2D(shadowMap, stc.xyz+vec3(-off.x, off.y, 0.0)).x, cs);
+	shadow += mex(shadow2D(shadowMap, stc.xyz+vec3(-off.x*2.0, -off.y, 0.0)).x, cs);
+
+        return shadow*0.2;
 }
 
 void main() 
@@ -227,7 +232,7 @@ void main()
 
 				float w = 1.0;
 				w -= max(spos.z-far_split.z, 0.0)/transition_domain.z;
-				shadow += pcfShadow(shadowMap3, lpos, 0.25)*w;
+				shadow += pcfShadow(shadowMap3, lpos, 0.25, pos_screen)*w;
 				weight += w;
 				shadow += max((pos.z+shadow_clip.z)/(shadow_clip.z-shadow_clip.w)*2.0-1.0, 0.0);
 			}
@@ -240,7 +245,7 @@ void main()
 				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;
-				shadow += pcfShadow(shadowMap2, lpos, 0.75)*w;
+				shadow += pcfShadow(shadowMap2, lpos, 0.5, pos_screen)*w;
 				weight += w;
 			}
 
@@ -252,7 +257,7 @@ void main()
 				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;
-				shadow += pcfShadow(shadowMap1, lpos, 0.75)*w;
+				shadow += pcfShadow(shadowMap1, lpos, 0.75, pos_screen)*w;
 				weight += w;
 			}
 
@@ -264,7 +269,7 @@ void main()
 				float w = 1.0;
 				w -= max(near_split.x-spos.z, 0.0)/transition_domain.x;
 				
-				shadow += pcfShadow(shadowMap0, lpos, 1.0)*w;
+				shadow += pcfShadow(shadowMap0, lpos, 1.0, pos_screen)*w;
 				weight += w;
 			}
 		
@@ -298,11 +303,11 @@ void main()
 	
 	//spotlight shadow 1
 	vec4 lpos = shadow_matrix[4]*spos;
-	frag_color[2] = pcfShadow(shadowMap4, lpos, 0.8); 
+	frag_color[2] = pcfShadow(shadowMap4, lpos, 0.8, pos_screen);
 	
 	//spotlight shadow 2
 	lpos = shadow_matrix[5]*spos;
-	frag_color[3] = pcfShadow(shadowMap5, lpos, 0.8); 
+	frag_color[3] = pcfShadow(shadowMap5, lpos, 0.8, pos_screen);
 
 	//frag_color.rgb = pos.xyz;
 	//frag_color.b = shadow;