From 0afe1fd41dbc3ec593931e6626b210a29130fa0b Mon Sep 17 00:00:00 2001
From: Palmer <palmer@lindenlab.com>
Date: Fri, 26 Mar 2010 13:19:01 -0700
Subject: Applied (manually in places) diff from
 svn.lindenlab.com/svn/linden/branches/render-pipeline/render-pipeline-7@135361
 to get deferred rendering changes from the svn branch.  Bleh!

---
 .../newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl | 2 +-
 indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl     | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl
index 651959413c..45884d5732 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl
@@ -137,7 +137,7 @@ void main()
 		}
 		
 		//float diff = clamp((proj_range-proj_focus)/proj_range, 0.0, 1.0);
-		vec4 amb_plcol = texture2DLod(projectionMap, proj_tc.xy, proj_ambient_lod);
+		vec4 amb_plcol = texture2DLod(projectionMap, proj_tc.xy, proj_lod);
 							
 		amb_da += (da*da*0.5+0.5)*proj_ambiance;
 				
diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
index a0026edcd2..4333cc64a7 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
@@ -224,11 +224,11 @@ void main()
 	
 	//spotlight shadow 1
 	vec4 lpos = shadow_matrix[4]*spos;
-	gl_FragColor[2] = pcfShadow(shadowMap4, lpos, 0.1).x; 
+	gl_FragColor[2] = pcfShadow(shadowMap4, lpos, 0.8).x; 
 	
 	//spotlight shadow 2
 	lpos = shadow_matrix[5]*spos;
-	gl_FragColor[3] = pcfShadow(shadowMap5, lpos, 0.1).x; 
+	gl_FragColor[3] = pcfShadow(shadowMap5, lpos, 0.8).x; 
 
 	//gl_FragColor.rgb = pos.xyz;
 	//gl_FragColor.b = shadow;
-- 
cgit v1.2.3


From ce7eb236fc3f0ed708899e2aa65dd9b876769850 Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Mon, 4 Jan 2010 11:50:04 -0600
Subject: CTS-54 Fix for SSAO artifacts far away.

---
 .../shaders/class2/deferred/sunLightF.glsl         | 82 ++++++++++++----------
 1 file changed, 46 insertions(+), 36 deletions(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
index 4333cc64a7..74a948f584 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
@@ -55,51 +55,61 @@ vec4 getPosition(vec2 pos_screen)
 //calculate decreases in ambient lighting when crowded out (SSAO)
 float calcAmbientOcclusion(vec4 pos, vec3 norm)
 {
-	vec2 kern[8];
-	// exponentially (^2) distant occlusion samples spread around origin
-	kern[0] = vec2(-1.0, 0.0) * 0.125*0.125;
-	kern[1] = vec2(1.0, 0.0) * 0.250*0.250;
-	kern[2] = vec2(0.0, 1.0) * 0.375*0.375;
-	kern[3] = vec2(0.0, -1.0) * 0.500*0.500;
-	kern[4] = vec2(0.7071, 0.7071) * 0.625*0.625;
-	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;
-
-	vec2 pos_screen = vary_fragcoord.xy;
-	vec3 pos_world = pos.xyz;
-	vec2 noise_reflect = texture2D(noiseMap, vary_fragcoord.xy/128.0).xy;
-	
-	float angle_hidden = 0.0;
-	int points = 0;
+	float ret = 1.0;
 	
-	float scale = min(ssao_radius / -pos_world.z, ssao_max_radius);
+	float dist = dot(pos.xyz,pos.xyz);
 	
-	// it was found that keeping # of samples a constant was the fastest, probably due to compiler optimizations (unrolling?)
-	for (int i = 0; i < 8; i++)
+	if (dist < 64.0*64.0)
 	{
-		vec2 samppos_screen = pos_screen + scale * reflect(kern[i], noise_reflect);
-		vec3 samppos_world = getPosition(samppos_screen).xyz; 
+		vec2 kern[8];
+		// exponentially (^2) distant occlusion samples spread around origin
+		kern[0] = vec2(-1.0, 0.0) * 0.125*0.125;
+		kern[1] = vec2(1.0, 0.0) * 0.250*0.250;
+		kern[2] = vec2(0.0, 1.0) * 0.375*0.375;
+		kern[3] = vec2(0.0, -1.0) * 0.500*0.500;
+		kern[4] = vec2(0.7071, 0.7071) * 0.625*0.625;
+		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;
+
+		vec2 pos_screen = vary_fragcoord.xy;
+		vec3 pos_world = pos.xyz;
+		vec2 noise_reflect = texture2D(noiseMap, vary_fragcoord.xy/128.0).xy;
 		
-		vec3 diff = pos_world - samppos_world;
-		float dist2 = dot(diff, diff);
+		float angle_hidden = 0.0;
+		int points = 0;
 		
-		// assume each sample corresponds to an occluding sphere with constant radius, constant x-sectional area
-		// --> solid angle shrinking by the square of distance
-		//radius is somewhat arbitrary, can approx with just some constant k * 1 / dist^2
-		//(k should vary inversely with # of samples, but this is taken care of later)
+		float scale = min(ssao_radius / -pos_world.z, ssao_max_radius);
 		
-		//if (dot((samppos_world - 0.05*norm - pos_world), norm) > 0.0)  // -0.05*norm to shift sample point back slightly for flat surfaces
-		//	angle_hidden += min(1.0/dist2, ssao_factor_inv); // dist != 0 follows from conditional.  max of 1.0 (= ssao_factor_inv * ssao_factor)
-		angle_hidden = angle_hidden + float(dot((samppos_world - 0.05*norm - pos_world), norm) > 0.0) * min(1.0/dist2, ssao_factor_inv);
+		// it was found that keeping # of samples a constant was the fastest, probably due to compiler optimizations (unrolling?)
+		for (int i = 0; i < 8; i++)
+		{
+			vec2 samppos_screen = pos_screen + scale * reflect(kern[i], noise_reflect);
+			vec3 samppos_world = getPosition(samppos_screen).xyz; 
+			
+			vec3 diff = pos_world - samppos_world;
+			float dist2 = dot(diff, diff);
+			
+			// assume each sample corresponds to an occluding sphere with constant radius, constant x-sectional area
+			// --> solid angle shrinking by the square of distance
+			//radius is somewhat arbitrary, can approx with just some constant k * 1 / dist^2
+			//(k should vary inversely with # of samples, but this is taken care of later)
+			
+			//if (dot((samppos_world - 0.05*norm - pos_world), norm) > 0.0)  // -0.05*norm to shift sample point back slightly for flat surfaces
+			//	angle_hidden += min(1.0/dist2, ssao_factor_inv); // dist != 0 follows from conditional.  max of 1.0 (= ssao_factor_inv * ssao_factor)
+			angle_hidden = angle_hidden + float(dot((samppos_world - 0.05*norm - pos_world), norm) > 0.0) * min(1.0/dist2, ssao_factor_inv);
+			
+			// 'blocked' samples (significantly closer to camera relative to pos_world) are "no data", not "no occlusion" 
+			points = points + int(diff.z > -1.0);
+		}
 		
-		// 'blocked' samples (significantly closer to camera relative to pos_world) are "no data", not "no occlusion" 
-		points = points + int(diff.z > -1.0);
+		angle_hidden = min(ssao_factor*angle_hidden/float(points), 1.0);
+		
+		ret = (1.0 - (float(points != 0) * angle_hidden));
+		ret += max((dist-32.0*32.0)/(32.0*32.0), 0.0);
 	}
 	
-	angle_hidden = min(ssao_factor*angle_hidden/float(points), 1.0);
-	
-	return (1.0 - (float(points != 0) * angle_hidden));
+	return min(ret, 1.0);
 }
 
 float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
-- 
cgit v1.2.3


From 5afb4373c4be036bd2f8e8aa7c3a192fbdf91c20 Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Fri, 8 Jan 2010 13:31:04 -0600
Subject: Cleaned up visible edges of projector frustum in
 diffuse/specular/ambient lighting from projectors.

---
 .../shaders/class2/deferred/multiSpotLightF.glsl   | 58 ++++++++++++++++++++--
 .../shaders/class2/deferred/spotLightF.glsl        | 11 ----
 2 files changed, 54 insertions(+), 15 deletions(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl
index 45884d5732..3e29c684e8 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl
@@ -43,6 +43,52 @@ uniform vec2 screen_res;
 
 uniform mat4 inv_proj;
 
+vec4 texture2DLodSpecular(sampler2D projectionMap, vec2 tc, float lod)
+{
+	vec4 ret = texture2DLod(projectionMap, tc, lod);
+	
+	vec2 dist = tc-vec2(0.5);
+	
+	float det = max(1.0-lod/(proj_lod*0.5), 0.0);
+	
+	float d = dot(dist,dist);
+		
+	ret *= min(clamp((0.25-d)/0.25, 0.0, 1.0)+det, 1.0);
+	
+	return ret;
+}
+
+vec4 texture2DLodDiffuse(sampler2D projectionMap, vec2 tc, float lod)
+{
+	vec4 ret = texture2DLod(projectionMap, tc, lod);
+	
+	vec2 dist = vec2(0.5) - abs(tc-vec2(0.5));
+	
+	float det = min(lod/(proj_lod*0.5), 1.0);
+	
+	float d = min(dist.x, dist.y);
+	
+	float edge = 0.25*det;
+		
+	ret *= clamp(d/edge, 0.0, 1.0);
+	
+	return ret;
+}
+
+vec4 texture2DLodAmbient(sampler2D projectionMap, vec2 tc, float lod)
+{
+	vec4 ret = texture2DLod(projectionMap, tc, lod);
+	
+	vec2 dist = tc-vec2(0.5);
+	
+	float d = dot(dist,dist);
+		
+	ret *= min(clamp((0.25-d)/0.25, 0.0, 1.0), 1.0);
+	
+	return ret;
+}
+
+
 vec4 getPosition(vec2 pos_screen)
 {
 	float depth = texture2DRect(depthMap, pos_screen.xy).a;
@@ -126,7 +172,7 @@ void main()
 			float diff = clamp((l_dist-proj_focus)/proj_range, 0.0, 1.0);
 			float lod = diff * proj_lod;
 			
-			vec4 plcol = texture2DLod(projectionMap, proj_tc.xy, lod);
+			vec4 plcol = texture2DLodDiffuse(projectionMap, proj_tc.xy, lod);
 		
 			vec3 lcol = gl_Color.rgb * plcol.rgb * plcol.a;
 			
@@ -137,7 +183,7 @@ void main()
 		}
 		
 		//float diff = clamp((proj_range-proj_focus)/proj_range, 0.0, 1.0);
-		vec4 amb_plcol = texture2DLod(projectionMap, proj_tc.xy, proj_lod);
+		vec4 amb_plcol = texture2DLodAmbient(projectionMap, proj_tc.xy, proj_lod);
 							
 		amb_da += (da*da*0.5+0.5)*proj_ambiance;
 				
@@ -167,13 +213,17 @@ void main()
 			if (stc.z > 0.0)
 			{
 				stc.xy /= stc.w;
-					
+
+				float fatten = clamp(spec.a*spec.a+spec.a*0.5, 0.25, 1.0);
+				
+				stc.xy = (stc.xy - vec2(0.5)) * fatten + vec2(0.5);
+								
 				if (stc.x < 1.0 &&
 					stc.y < 1.0 &&
 					stc.x > 0.0 &&
 					stc.y > 0.0)
 				{
-					vec4 scol = texture2DLod(projectionMap, stc.xy, proj_lod-spec.a*proj_lod);
+					vec4 scol = texture2DLodSpecular(projectionMap, stc.xy, proj_lod-spec.a*proj_lod);
 					col += dist_atten*scol.rgb*gl_Color.rgb*scol.a*spec.rgb*shadow;
 				}
 			}
diff --git a/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl
index d6534083cf..6617e33c0d 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl
@@ -179,17 +179,6 @@ void main()
 		}
 	}
 	
-	/*if (spec.a > 0.0)
-	{
-		//vec3 ref = reflect(normalize(pos), norm);
-		float sa = dot(normalize(lv-normalize(pos)),norm);;
-		//sa = max(sa, 0.0);
-		//sa = pow(sa, 128.0 * spec.a*spec.a/dist_atten)*min(dist_atten*4.0, 1.0);
-		sa = texture2D(lightFunc, vec2(sa, spec.a)).a * min(dist_atten*4.0, 1.0);
-		sa *= noise;
-		col += da*sa*lcol*spec.rgb;
-	}*/
-	
 	//attenuate point light contribution by SSAO component
 	col *= texture2DRect(lightMap, frag.xy).g;
 	
-- 
cgit v1.2.3


From 0467d0a62916f045c50c53e12719ca692271326c Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Thu, 28 Jan 2010 18:01:12 -0800
Subject: enable basic directional lighting for basic/atmospheric shaders -
 yay.

next, needs the non-shader GL lighting model to be equally dumb (it's too smart - kill the spot angle.
---
 .../newview/app_settings/shaders/class2/lighting/sumLightsV.glsl  | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl b/indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl
index f4c59734a4..fd264b9e74 100644
--- a/indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl
+++ b/indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl
@@ -7,6 +7,7 @@
 
 float calcDirectionalLight(vec3 n, vec3 l);
 float calcPointLight(vec3 v, vec3 n, vec4 lp, float la);
+float calcPointLight2(vec3 v, vec3 n, vec4 lp, vec3 ln, float la);
 
 vec3 atmosAmbient(vec3 light);
 vec3 atmosAffectDirectionalLight(float lightIntensity);
@@ -18,9 +19,10 @@ vec4 sumLights(vec3 pos, vec3 norm, vec4 color, vec4 baseLight)
 	
 	// Collect normal lights (need to be divided by two, as we later multiply by 2)
 	col.rgb += gl_LightSource[1].diffuse.rgb * calcDirectionalLight(norm, gl_LightSource[1].position.xyz);
-	col.rgb += gl_LightSource[2].diffuse.rgb * calcPointLight(pos, norm, gl_LightSource[2].position, gl_LightSource[2].linearAttenuation);
-	col.rgb += gl_LightSource[3].diffuse.rgb * calcPointLight(pos, norm, gl_LightSource[3].position, gl_LightSource[3].linearAttenuation);
-	//col.rgb += gl_LightSource[4].diffuse.rgb * calcPointLight(pos, norm, gl_LightSource[4].position, gl_LightSource[4].linearAttenuation);
+
+	col.rgb += gl_LightSource[2].diffuse.rgb * calcPointLight2(pos, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation);
+	col.rgb += gl_LightSource[3].diffuse.rgb * calcPointLight2(pos, norm, gl_LightSource[3].position, gl_LightSource[3].spotDirection.xyz, gl_LightSource[3].linearAttenuation);
+	//col.rgb += gl_LightSource[4].diffuse.rgb * calcPointLight2(pos, norm, gl_LightSource[4].position, gl_LightSource[4].spotDirection.xyz, gl_LightSource[4].linearAttenuation);
 	col.rgb = scaleDownLight(col.rgb);
 
 	// Add windlight lights
-- 
cgit v1.2.3


From c67c7ddd63c06e4e4f0a25a2ef23b941b85dd7bf Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Thu, 28 Jan 2010 21:48:22 -0800
Subject: getting closer to point/spot interchangability

---
 indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl b/indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl
index fd264b9e74..e5bf76db55 100644
--- a/indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl
+++ b/indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl
@@ -20,9 +20,9 @@ vec4 sumLights(vec3 pos, vec3 norm, vec4 color, vec4 baseLight)
 	// Collect normal lights (need to be divided by two, as we later multiply by 2)
 	col.rgb += gl_LightSource[1].diffuse.rgb * calcDirectionalLight(norm, gl_LightSource[1].position.xyz);
 
-	col.rgb += gl_LightSource[2].diffuse.rgb * calcPointLight2(pos, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation);
-	col.rgb += gl_LightSource[3].diffuse.rgb * calcPointLight2(pos, norm, gl_LightSource[3].position, gl_LightSource[3].spotDirection.xyz, gl_LightSource[3].linearAttenuation);
-	//col.rgb += gl_LightSource[4].diffuse.rgb * calcPointLight2(pos, norm, gl_LightSource[4].position, gl_LightSource[4].spotDirection.xyz, gl_LightSource[4].linearAttenuation);
+	col.rgb += gl_LightSource[2].diffuse.rgb * calcPointLight2(pos, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation, gl_LightSource[2].specular.a);
+	col.rgb += gl_LightSource[3].diffuse.rgb * calcPointLight2(pos, norm, gl_LightSource[3].position, gl_LightSource[3].spotDirection.xyz, gl_LightSource[3].linearAttenuation, gl_LightSource[3].specular.a);
+	//col.rgb += gl_LightSource[4].diffuse.rgb * calcPointLight2(pos, norm, gl_LightSource[4].position, gl_LightSource[4].spotDirection.xyz, gl_LightSource[4].linearAttenuation, gl_LightSource[4].specular.a);
 	col.rgb = scaleDownLight(col.rgb);
 
 	// Add windlight lights
-- 
cgit v1.2.3


From 817d1d755b72b531b4107a259e618131fad94c50 Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Thu, 28 Jan 2010 23:58:50 -0800
Subject: cheap no-branch goodness for rendering both spotlights and
 pointlights with the same shader code.

kill already-nerfed quadratic attenuation which it seems we won't be supporting any decade soon.
---
 indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl b/indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl
index e5bf76db55..4577b4be55 100644
--- a/indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl
+++ b/indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl
@@ -7,7 +7,7 @@
 
 float calcDirectionalLight(vec3 n, vec3 l);
 float calcPointLight(vec3 v, vec3 n, vec4 lp, float la);
-float calcPointLight2(vec3 v, vec3 n, vec4 lp, vec3 ln, float la);
+float calcPointLight2(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float is_omnidirectional);
 
 vec3 atmosAmbient(vec3 light);
 vec3 atmosAffectDirectionalLight(float lightIntensity);
-- 
cgit v1.2.3


From 0fcdf05366c604c66e11cf0b6cc26c5fdbe3265f Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Fri, 29 Jan 2010 00:22:13 -0800
Subject: spot-aware light func usage in ALL shaders.

---
 .../app_settings/shaders/class2/deferred/alphaV.glsl       | 14 +++++++-------
 .../app_settings/shaders/class2/deferred/avatarAlphaV.glsl | 14 +++++++-------
 .../app_settings/shaders/class2/lighting/sumLightsV.glsl   |  9 ++++-----
 3 files changed, 18 insertions(+), 19 deletions(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl b/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
index 5991e1f3b5..eec655e3df 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
@@ -9,7 +9,7 @@ vec4 calcLighting(vec3 pos, vec3 norm, vec4 color, vec4 baseCol);
 void calcAtmospherics(vec3 inPositionEye);
 
 float calcDirectionalLight(vec3 n, vec3 l);
-float calcPointLight(vec3 v, vec3 n, vec4 lp, float la);
+float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float is_pointlight);
 
 vec3 atmosAmbient(vec3 light);
 vec3 atmosAffectDirectionalLight(float lightIntensity);
@@ -50,12 +50,12 @@ void main()
 	col.rgb = scaleUpLight(col.rgb);
 
 	// Collect normal lights (need to be divided by two, as we later multiply by 2)
-	col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].linearAttenuation);
-	col.rgb += gl_LightSource[3].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[3].position, gl_LightSource[3].linearAttenuation);
-	col.rgb += gl_LightSource[4].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[4].position, gl_LightSource[4].linearAttenuation);
-	col.rgb += gl_LightSource[5].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[5].position, gl_LightSource[5].linearAttenuation);
- 	col.rgb += gl_LightSource[6].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[6].position, gl_LightSource[6].linearAttenuation);
- 	col.rgb += gl_LightSource[7].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[7].position, gl_LightSource[7].linearAttenuation);
+	col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation, gl_LightSource[2].specular.a);
+	col.rgb += gl_LightSource[3].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[3].position, gl_LightSource[3].spotDirection.xyz, gl_LightSource[3].linearAttenuation, gl_LightSource[3].specular.a);
+	col.rgb += gl_LightSource[4].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[4].position, gl_LightSource[4].spotDirection.xyz, gl_LightSource[4].linearAttenuation, gl_LightSource[4].specular.a);
+	col.rgb += gl_LightSource[5].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[5].position, gl_LightSource[5].spotDirection.xyz, gl_LightSource[5].linearAttenuation, gl_LightSource[5].specular.a);
+	col.rgb += gl_LightSource[6].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[6].position, gl_LightSource[6].spotDirection.xyz, gl_LightSource[6].linearAttenuation, gl_LightSource[6].specular.a);
+	col.rgb += gl_LightSource[7].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[7].position, gl_LightSource[7].spotDirection.xyz, gl_LightSource[7].linearAttenuation, gl_LightSource[7].specular.a);
 	col.rgb += gl_LightSource[1].diffuse.rgb*calcDirectionalLight(norm, gl_LightSource[1].position.xyz);
 	col.rgb = scaleDownLight(col.rgb);
 	
diff --git a/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl b/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl
index a939499b17..488bd677e1 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl
@@ -10,7 +10,7 @@ mat4 getSkinnedTransform();
 void calcAtmospherics(vec3 inPositionEye);
 
 float calcDirectionalLight(vec3 n, vec3 l);
-float calcPointLight(vec3 v, vec3 n, vec4 lp, float la);
+float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float is_pointlight);
 
 vec3 atmosAmbient(vec3 light);
 vec3 atmosAffectDirectionalLight(float lightIntensity);
@@ -61,12 +61,12 @@ void main()
 	col.rgb = scaleUpLight(col.rgb);
 
 	// Collect normal lights (need to be divided by two, as we later multiply by 2)
-	col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].linearAttenuation);
-	col.rgb += gl_LightSource[3].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[3].position, gl_LightSource[3].linearAttenuation);
-	col.rgb += gl_LightSource[4].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[4].position, gl_LightSource[4].linearAttenuation);
-	col.rgb += gl_LightSource[5].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[5].position, gl_LightSource[5].linearAttenuation);
- 	col.rgb += gl_LightSource[6].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[6].position, gl_LightSource[6].linearAttenuation);
- 	col.rgb += gl_LightSource[7].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[7].position, gl_LightSource[7].linearAttenuation);
+	col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation, gl_LightSource[2].specular.a);
+	col.rgb += gl_LightSource[3].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[3].position, gl_LightSource[3].spotDirection.xyz, gl_LightSource[3].linearAttenuation, gl_LightSource[3].specular.a);
+	col.rgb += gl_LightSource[4].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[4].position, gl_LightSource[4].spotDirection.xyz, gl_LightSource[4].linearAttenuation, gl_LightSource[4].specular.a);
+	col.rgb += gl_LightSource[5].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[5].position, gl_LightSource[5].spotDirection.xyz, gl_LightSource[5].linearAttenuation, gl_LightSource[5].specular.a);
+	col.rgb += gl_LightSource[6].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[6].position, gl_LightSource[6].spotDirection.xyz, gl_LightSource[6].linearAttenuation, gl_LightSource[6].specular.a);
+	col.rgb += gl_LightSource[7].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[7].position, gl_LightSource[7].spotDirection.xyz, gl_LightSource[7].linearAttenuation, gl_LightSource[7].specular.a);
 	col.rgb += gl_LightSource[1].diffuse.rgb*calcDirectionalLight(norm, gl_LightSource[1].position.xyz);
 	col.rgb = scaleDownLight(col.rgb);
 	
diff --git a/indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl b/indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl
index 4577b4be55..19800d96dc 100644
--- a/indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl
+++ b/indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl
@@ -6,8 +6,7 @@
  */
 
 float calcDirectionalLight(vec3 n, vec3 l);
-float calcPointLight(vec3 v, vec3 n, vec4 lp, float la);
-float calcPointLight2(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float is_omnidirectional);
+float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float is_pointlight);
 
 vec3 atmosAmbient(vec3 light);
 vec3 atmosAffectDirectionalLight(float lightIntensity);
@@ -20,9 +19,9 @@ vec4 sumLights(vec3 pos, vec3 norm, vec4 color, vec4 baseLight)
 	// Collect normal lights (need to be divided by two, as we later multiply by 2)
 	col.rgb += gl_LightSource[1].diffuse.rgb * calcDirectionalLight(norm, gl_LightSource[1].position.xyz);
 
-	col.rgb += gl_LightSource[2].diffuse.rgb * calcPointLight2(pos, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation, gl_LightSource[2].specular.a);
-	col.rgb += gl_LightSource[3].diffuse.rgb * calcPointLight2(pos, norm, gl_LightSource[3].position, gl_LightSource[3].spotDirection.xyz, gl_LightSource[3].linearAttenuation, gl_LightSource[3].specular.a);
-	//col.rgb += gl_LightSource[4].diffuse.rgb * calcPointLight2(pos, norm, gl_LightSource[4].position, gl_LightSource[4].spotDirection.xyz, gl_LightSource[4].linearAttenuation, gl_LightSource[4].specular.a);
+	col.rgb += gl_LightSource[2].diffuse.rgb * calcPointLightOrSpotLight(pos, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation, gl_LightSource[2].specular.a);
+	col.rgb += gl_LightSource[3].diffuse.rgb * calcPointLightOrSpotLight(pos, norm, gl_LightSource[3].position, gl_LightSource[3].spotDirection.xyz, gl_LightSource[3].linearAttenuation, gl_LightSource[3].specular.a);
+	//col.rgb += gl_LightSource[4].diffuse.rgb * calcPointLightOrSpotLight(pos, norm, gl_LightSource[4].position, gl_LightSource[4].spotDirection.xyz, gl_LightSource[4].linearAttenuation, gl_LightSource[4].specular.a);
 	col.rgb = scaleDownLight(col.rgb);
 
 	// Add windlight lights
-- 
cgit v1.2.3


From 35ed9dd2986aac6471a9c089bad6ff6062e34177 Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Fri, 29 Jan 2010 00:31:39 -0800
Subject: Don't scale windlight lights up just to scale them down again later. 
 avoid this with rearrangement.

not tested.
---
 indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl | 10 ++++------
 .../app_settings/shaders/class2/deferred/avatarAlphaV.glsl     | 10 ++++------
 2 files changed, 8 insertions(+), 12 deletions(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl b/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
index eec655e3df..05a32578c1 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
@@ -42,12 +42,7 @@ void main()
 	calcAtmospherics(pos.xyz);
 
 	//vec4 color = calcLighting(pos.xyz, norm, gl_Color, vec4(0.));
-	vec4 col;
-	col.a = gl_Color.a;
-	
-	// Add windlight lights
-	col.rgb = atmosAmbient(vec3(0.));
-	col.rgb = scaleUpLight(col.rgb);
+	vec4 col(0.0, 0.0, 0.0, gl_Color.a);
 
 	// Collect normal lights (need to be divided by two, as we later multiply by 2)
 	col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation, gl_LightSource[2].specular.a);
@@ -59,6 +54,9 @@ void main()
 	col.rgb += gl_LightSource[1].diffuse.rgb*calcDirectionalLight(norm, gl_LightSource[1].position.xyz);
 	col.rgb = scaleDownLight(col.rgb);
 	
+	// Add windlight lights
+	col.rgb += atmosAmbient(vec3(0.));
+	
 	vary_light = gl_LightSource[0].position.xyz;
 	
 	vary_ambient = col.rgb*gl_Color.rgb;
diff --git a/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl b/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl
index 488bd677e1..d63baeb913 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl
@@ -53,12 +53,7 @@ void main()
 	calcAtmospherics(pos.xyz);
 
 	//vec4 color = calcLighting(pos.xyz, norm, gl_Color, vec4(0.));
-	vec4 col;
-	col.a = gl_Color.a;
-	
-	// Add windlight lights
-	col.rgb = atmosAmbient(vec3(0.));
-	col.rgb = scaleUpLight(col.rgb);
+	vec4 col(0.0, 0.0, 0.0, gl_Color.a);
 
 	// Collect normal lights (need to be divided by two, as we later multiply by 2)
 	col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation, gl_LightSource[2].specular.a);
@@ -70,6 +65,9 @@ void main()
 	col.rgb += gl_LightSource[1].diffuse.rgb*calcDirectionalLight(norm, gl_LightSource[1].position.xyz);
 	col.rgb = scaleDownLight(col.rgb);
 	
+	// Add windlight lights
+	col.rgb += atmosAmbient(vec3(0.));
+	
 	vary_ambient = col.rgb*gl_Color.rgb;
 	vary_directional = gl_Color.rgb*atmosAffectDirectionalLight(max(calcDirectionalLight(norm, gl_LightSource[0].position.xyz), (1.0-gl_Color.a)*(1.0-gl_Color.a)));
 	
-- 
cgit v1.2.3


From a857a71e097f3778a167c88980dc59c6960958bd Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Fri, 29 Jan 2010 01:45:13 -0800
Subject: fix a variety of shader errors, mostly due to my confusing glsl with
 C++... again

---
 indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl       | 2 +-
 indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl b/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
index 05a32578c1..1fae8c4da3 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
@@ -42,7 +42,7 @@ void main()
 	calcAtmospherics(pos.xyz);
 
 	//vec4 color = calcLighting(pos.xyz, norm, gl_Color, vec4(0.));
-	vec4 col(0.0, 0.0, 0.0, gl_Color.a);
+	vec4 col = vec4(0.0, 0.0, 0.0, gl_Color.a);
 
 	// Collect normal lights (need to be divided by two, as we later multiply by 2)
 	col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation, gl_LightSource[2].specular.a);
diff --git a/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl b/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl
index d63baeb913..f8dd1b7431 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl
@@ -53,7 +53,8 @@ void main()
 	calcAtmospherics(pos.xyz);
 
 	//vec4 color = calcLighting(pos.xyz, norm, gl_Color, vec4(0.));
-	vec4 col(0.0, 0.0, 0.0, gl_Color.a);
+
+	vec4 col = vec4(0.0, 0.0, 0.0, gl_Color.a);
 
 	// Collect normal lights (need to be divided by two, as we later multiply by 2)
 	col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation, gl_LightSource[2].specular.a);
-- 
cgit v1.2.3


From 69befdfb34db1a18170de5e75f3076e4cbe5dc53 Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Fri, 5 Mar 2010 10:49:52 -0600
Subject: Fix for sun specular highlights showing up in shadow when diffuse
 ambiance greater than 0.

---
 indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index 531f7376a3..249ac7ef9b 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -275,7 +275,7 @@ void main()
 	{
 		vec3 ref = normalize(reflect(pos.xyz, norm.xyz));
 		float sa = dot(ref, vary_light.xyz);
-		col.rgb += vary_SunlitColor*scol*spec.rgb*texture2D(lightFunc, vec2(sa, spec.a)).a;
+		col.rgb += vary_SunlitColor*scol_ambocc.r*spec.rgb*texture2D(lightFunc, vec2(sa, spec.a)).a;
 	}
 	
 	col = atmosLighting(col);
-- 
cgit v1.2.3


From 18432d1bc5bdab244b6054af73c5e4cf3d855164 Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Sun, 7 Mar 2010 11:34:31 +0000
Subject: Add a touch of fakey ripple to shadows on the surface of water, as if
 the water has depth.  Using 4th component of the normal map to encode a
 position displacement (along the normal) in the class2 shadow lookup.

---
 indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
index 74a948f584..50502dbdad 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
@@ -159,7 +159,9 @@ void main()
 	
 	vec4 pos = getPosition(pos_screen);
 	
-    vec3 norm = texture2DRect(normalMap, pos_screen).xyz*2.0-1.0;
+	vec4 nmap4 = texture2DRect(normalMap, pos_screen);
+	float displace = nmap4.w;
+	vec3 norm = nmap4.xyz*2.0-1.0;
 	
 	/*if (pos.z == 0.0) // do nothing for sky *FIX: REMOVE THIS IF/WHEN THE POSITION MAP IS BEING USED AS A STENCIL
 	{
@@ -168,9 +170,9 @@ void main()
 	}*/
 	
 	float shadow = 1.0;
-    float dp_directional_light = max(0.0, dot(norm, vary_light.xyz));
+	float dp_directional_light = max(0.0, dot(norm, vary_light.xyz));
 
-	vec4 spos = vec4(pos.xyz + vary_light.xyz * (1.0-dp_directional_light)*shadow_offset, 1.0);
+	vec4 spos = vec4(pos.xyz + displace*norm + vary_light.xyz * (1.0-dp_directional_light)*shadow_offset, 1.0);
 	
 	if (spos.z > -shadow_clip.w)
 	{	
-- 
cgit v1.2.3


From 3de4396aa4e96ae5ad1b9384b57d19caf8e674ac Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Wed, 17 Mar 2010 22:22:02 -0500
Subject: CTS-110 Remove soft alpha in deferred pipeline (breaks some content).
  Will revisit soft alpha in materials project.

---
 .../newview/app_settings/shaders/class2/deferred/alphaF.glsl  | 11 -----------
 1 file changed, 11 deletions(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/alphaF.glsl b/indra/newview/app_settings/shaders/class2/deferred/alphaF.glsl
index ad16de6d81..665fe16b43 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/alphaF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/alphaF.glsl
@@ -29,8 +29,6 @@ varying vec3 vary_fragcoord;
 varying vec3 vary_position;
 varying vec3 vary_light;
 
-uniform float alpha_soften;
-
 uniform float shadow_bias;
 
 uniform mat4 inv_proj;
@@ -115,15 +113,6 @@ void main()
 
 	color.rgb = scaleSoftClip(color.rgb);
 
-	if (samp_pos.z != 0.0 && gl_Color.a < 1.0)
-	{
-		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)*shadow;
-- 
cgit v1.2.3


From 32d0d01e864409d966430d005e62869564902b12 Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Fri, 19 Mar 2010 18:14:17 -0500
Subject: RenderDeferredSSAO works as an independent setting -- decoupled
 shadows from SSAO.

---
 .../shaders/class2/deferred/multiSpotLightF.glsl   |  3 -
 .../shaders/class2/deferred/softenLightF.glsl      | 10 +---
 .../shaders/class2/deferred/spotLightF.glsl        |  4 --
 .../shaders/class2/deferred/sunLightF.glsl         | 64 +---------------------
 4 files changed, 4 insertions(+), 77 deletions(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl
index 3e29c684e8..5308e5bb1e 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl
@@ -230,9 +230,6 @@ void main()
 		}
 	}
 	
-	//attenuate point light contribution by SSAO component
-	col *= texture2DRect(lightMap, frag.xy).g;
-	
 	gl_FragColor.rgb = col;	
 	gl_FragColor.a = 0.0;
 }
diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index 249ac7ef9b..589a292751 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -11,6 +11,7 @@ uniform sampler2DRect diffuseRect;
 uniform sampler2DRect specularRect;
 uniform sampler2DRect normalMap;
 uniform sampler2DRect lightMap;
+uniform sampler2DRect depthMap;
 uniform sampler2D	  noiseMap;
 uniform samplerCube environmentMap;
 uniform sampler2D	  lightFunc;
@@ -41,7 +42,6 @@ uniform vec3 env_mat[3];
 uniform vec4 shadow_clip;
 uniform mat3 ssao_effect_mat;
 
-uniform sampler2DRect depthMap;
 uniform mat4 inv_proj;
 uniform vec2 screen_res;
 
@@ -282,13 +282,5 @@ void main()
 	col = scaleSoftClip(col);
 		
 	gl_FragColor.rgb = col;
-	
-	//gl_FragColor.rgb = gi_col.rgb;
 	gl_FragColor.a = 0.0;
-	
-	//gl_FragColor.rg = scol_ambocc.rg;
-	//gl_FragColor.rgb = texture2DRect(lightMap, vary_fragcoord.xy).rgb;
-	//gl_FragColor.rgb = norm.rgb*0.5+0.5;
-	//gl_FragColor.rgb = vec3(ambocc);
-	//gl_FragColor.rgb = vec3(scol);
 }
diff --git a/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl
index 6617e33c0d..eeaecc157f 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl
@@ -179,10 +179,6 @@ void main()
 		}
 	}
 	
-	//attenuate point light contribution by SSAO component
-	col *= texture2DRect(lightMap, frag.xy).g;
-	
-
 	gl_FragColor.rgb = col;	
 	gl_FragColor.a = 0.0;
 }
diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
index 50502dbdad..04c9a4d19a 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
@@ -7,6 +7,8 @@
 
 #extension GL_ARB_texture_rectangle : enable
 
+//class 2, shadows, no SSAO
+
 uniform sampler2DRect depthMap;
 uniform sampler2DRect normalMap;
 uniform sampler2DRectShadow shadowMap0;
@@ -52,66 +54,6 @@ vec4 getPosition(vec2 pos_screen)
 	return pos;
 }
 
-//calculate decreases in ambient lighting when crowded out (SSAO)
-float calcAmbientOcclusion(vec4 pos, vec3 norm)
-{
-	float ret = 1.0;
-	
-	float dist = dot(pos.xyz,pos.xyz);
-	
-	if (dist < 64.0*64.0)
-	{
-		vec2 kern[8];
-		// exponentially (^2) distant occlusion samples spread around origin
-		kern[0] = vec2(-1.0, 0.0) * 0.125*0.125;
-		kern[1] = vec2(1.0, 0.0) * 0.250*0.250;
-		kern[2] = vec2(0.0, 1.0) * 0.375*0.375;
-		kern[3] = vec2(0.0, -1.0) * 0.500*0.500;
-		kern[4] = vec2(0.7071, 0.7071) * 0.625*0.625;
-		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;
-
-		vec2 pos_screen = vary_fragcoord.xy;
-		vec3 pos_world = pos.xyz;
-		vec2 noise_reflect = texture2D(noiseMap, vary_fragcoord.xy/128.0).xy;
-		
-		float angle_hidden = 0.0;
-		int points = 0;
-		
-		float scale = min(ssao_radius / -pos_world.z, ssao_max_radius);
-		
-		// it was found that keeping # of samples a constant was the fastest, probably due to compiler optimizations (unrolling?)
-		for (int i = 0; i < 8; i++)
-		{
-			vec2 samppos_screen = pos_screen + scale * reflect(kern[i], noise_reflect);
-			vec3 samppos_world = getPosition(samppos_screen).xyz; 
-			
-			vec3 diff = pos_world - samppos_world;
-			float dist2 = dot(diff, diff);
-			
-			// assume each sample corresponds to an occluding sphere with constant radius, constant x-sectional area
-			// --> solid angle shrinking by the square of distance
-			//radius is somewhat arbitrary, can approx with just some constant k * 1 / dist^2
-			//(k should vary inversely with # of samples, but this is taken care of later)
-			
-			//if (dot((samppos_world - 0.05*norm - pos_world), norm) > 0.0)  // -0.05*norm to shift sample point back slightly for flat surfaces
-			//	angle_hidden += min(1.0/dist2, ssao_factor_inv); // dist != 0 follows from conditional.  max of 1.0 (= ssao_factor_inv * ssao_factor)
-			angle_hidden = angle_hidden + float(dot((samppos_world - 0.05*norm - pos_world), norm) > 0.0) * min(1.0/dist2, ssao_factor_inv);
-			
-			// 'blocked' samples (significantly closer to camera relative to pos_world) are "no data", not "no occlusion" 
-			points = points + int(diff.z > -1.0);
-		}
-		
-		angle_hidden = min(ssao_factor*angle_hidden/float(points), 1.0);
-		
-		ret = (1.0 - (float(points != 0) * angle_hidden));
-		ret += max((dist-32.0*32.0)/(32.0*32.0), 0.0);
-	}
-	
-	return min(ret, 1.0);
-}
-
 float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
 {
 	stc.xyz /= stc.w;
@@ -232,7 +174,7 @@ void main()
 	}
 	
 	gl_FragColor[0] = shadow;
-	gl_FragColor[1] = calcAmbientOcclusion(pos, norm);
+	gl_FragColor[1] = 1.0;
 	
 	//spotlight shadow 1
 	vec4 lpos = shadow_matrix[4]*spos;
-- 
cgit v1.2.3


From b576cbfb4289adfe8eecc793cf5e4e7a8f1b502e Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Sat, 20 Mar 2010 14:15:13 -0500
Subject: SSAO version of sunLight shaders.

---
 .../shaders/class2/deferred/sunLightSSAOF.glsl     | 248 +++++++++++++++++++++
 1 file changed, 248 insertions(+)
 create mode 100644 indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
new file mode 100644
index 0000000000..d77d17942a
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
@@ -0,0 +1,248 @@
+/** 
+ * @file sunLightSSAOF.glsl
+ *
+ * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#extension GL_ARB_texture_rectangle : enable
+
+//class 2 -- shadows and SSAO
+
+uniform sampler2DRect depthMap;
+uniform sampler2DRect normalMap;
+uniform sampler2DRectShadow shadowMap0;
+uniform sampler2DRectShadow shadowMap1;
+uniform sampler2DRectShadow shadowMap2;
+uniform sampler2DRectShadow shadowMap3;
+uniform sampler2DShadow shadowMap4;
+uniform sampler2DShadow shadowMap5;
+uniform sampler2D noiseMap;
+
+uniform sampler2D		lightFunc;
+
+// Inputs
+uniform mat4 shadow_matrix[6];
+uniform vec4 shadow_clip;
+uniform float ssao_radius;
+uniform float ssao_max_radius;
+uniform float ssao_factor;
+uniform float ssao_factor_inv;
+
+varying vec2 vary_fragcoord;
+varying vec4 vary_light;
+
+uniform mat4 inv_proj;
+uniform vec2 screen_res;
+uniform vec2 shadow_res;
+uniform vec2 proj_shadow_res;
+
+uniform float shadow_bias;
+uniform float shadow_offset;
+
+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;
+}
+
+//calculate decreases in ambient lighting when crowded out (SSAO)
+float calcAmbientOcclusion(vec4 pos, vec3 norm)
+{
+	float ret = 1.0;
+	
+	float dist = dot(pos.xyz,pos.xyz);
+	
+	if (dist < 64.0*64.0)
+	{
+		vec2 kern[8];
+		// exponentially (^2) distant occlusion samples spread around origin
+		kern[0] = vec2(-1.0, 0.0) * 0.125*0.125;
+		kern[1] = vec2(1.0, 0.0) * 0.250*0.250;
+		kern[2] = vec2(0.0, 1.0) * 0.375*0.375;
+		kern[3] = vec2(0.0, -1.0) * 0.500*0.500;
+		kern[4] = vec2(0.7071, 0.7071) * 0.625*0.625;
+		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;
+
+		vec2 pos_screen = vary_fragcoord.xy;
+		vec3 pos_world = pos.xyz;
+		vec2 noise_reflect = texture2D(noiseMap, vary_fragcoord.xy/128.0).xy;
+		
+		float angle_hidden = 0.0;
+		int points = 0;
+		
+		float scale = min(ssao_radius / -pos_world.z, ssao_max_radius);
+		
+		// it was found that keeping # of samples a constant was the fastest, probably due to compiler optimizations (unrolling?)
+		for (int i = 0; i < 8; i++)
+		{
+			vec2 samppos_screen = pos_screen + scale * reflect(kern[i], noise_reflect);
+			vec3 samppos_world = getPosition(samppos_screen).xyz; 
+			
+			vec3 diff = pos_world - samppos_world;
+			float dist2 = dot(diff, diff);
+			
+			// assume each sample corresponds to an occluding sphere with constant radius, constant x-sectional area
+			// --> solid angle shrinking by the square of distance
+			//radius is somewhat arbitrary, can approx with just some constant k * 1 / dist^2
+			//(k should vary inversely with # of samples, but this is taken care of later)
+			
+			//if (dot((samppos_world - 0.05*norm - pos_world), norm) > 0.0)  // -0.05*norm to shift sample point back slightly for flat surfaces
+			//	angle_hidden += min(1.0/dist2, ssao_factor_inv); // dist != 0 follows from conditional.  max of 1.0 (= ssao_factor_inv * ssao_factor)
+			angle_hidden = angle_hidden + float(dot((samppos_world - 0.05*norm - pos_world), norm) > 0.0) * min(1.0/dist2, ssao_factor_inv);
+			
+			// 'blocked' samples (significantly closer to camera relative to pos_world) are "no data", not "no occlusion" 
+			points = points + int(diff.z > -1.0);
+		}
+		
+		angle_hidden = min(ssao_factor*angle_hidden/float(points), 1.0);
+		
+		ret = (1.0 - (float(points != 0) * angle_hidden));
+		ret += max((dist-32.0*32.0)/(32.0*32.0), 0.0);
+	}
+	
+	return min(ret, 1.0);
+}
+
+float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
+{
+	stc.xyz /= stc.w;
+	stc.z += shadow_bias*scl;
+	
+	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;
+}
+
+float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
+{
+	stc.xyz /= stc.w;
+	stc.z += shadow_bias*scl;
+	
+	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);
+	
+			
+	return shadow/5.0;
+	
+	//return shadow;
+}
+
+void main() 
+{
+	vec2 pos_screen = vary_fragcoord.xy;
+	
+	//try doing an unproject here
+	
+	vec4 pos = getPosition(pos_screen);
+	
+	vec4 nmap4 = texture2DRect(normalMap, pos_screen);
+	float displace = nmap4.w;
+	vec3 norm = nmap4.xyz*2.0-1.0;
+	
+	/*if (pos.z == 0.0) // do nothing for sky *FIX: REMOVE THIS IF/WHEN THE POSITION MAP IS BEING USED AS A STENCIL
+	{
+		gl_FragColor = vec4(0.0); // doesn't matter
+		return;
+	}*/
+	
+	float shadow = 1.0;
+	float dp_directional_light = max(0.0, dot(norm, vary_light.xyz));
+
+	vec4 spos = vec4(pos.xyz + displace*norm + vary_light.xyz * (1.0-dp_directional_light)*shadow_offset, 1.0);
+	
+	if (spos.z > -shadow_clip.w)
+	{	
+		if (dp_directional_light == 0.0)
+		{
+			// if we know this point is facing away from the sun then we know it's in shadow without having to do a squirrelly shadow-map lookup
+			shadow = 0.0;
+		}
+		else
+		{
+			vec4 lpos;
+			
+			if (spos.z < -shadow_clip.z)
+			{
+				lpos = shadow_matrix[3]*spos;
+				lpos.xy *= shadow_res;
+				shadow = pcfShadow(shadowMap3, lpos, 0.25);
+				shadow += max((pos.z+shadow_clip.z)/(shadow_clip.z-shadow_clip.w)*2.0-1.0, 0.0);
+			}
+			else if (spos.z < -shadow_clip.y)
+			{
+				lpos = shadow_matrix[2]*spos;
+				lpos.xy *= shadow_res;
+				shadow = pcfShadow(shadowMap2, lpos, 0.5);
+			}
+			else if (spos.z < -shadow_clip.x)
+			{
+				lpos = shadow_matrix[1]*spos;
+				lpos.xy *= shadow_res;
+				shadow = pcfShadow(shadowMap1, lpos, 0.75);
+			}
+			else
+			{
+				lpos = shadow_matrix[0]*spos;
+				lpos.xy *= shadow_res;
+				shadow = pcfShadow(shadowMap0, lpos, 1.0);
+			}
+		
+			// take the most-shadowed value out of these two:
+			//  * the blurred sun shadow in the light (shadow) map
+			//  * an unblurred dot product between the sun and this norm
+			// the goal is to err on the side of most-shadow to fill-in shadow holes and reduce artifacting
+			shadow = min(shadow, dp_directional_light);
+			
+			//lpos.xy /= lpos.w*32.0;
+			//if (fract(lpos.x) < 0.1 || fract(lpos.y) < 0.1)
+			//{
+			//	shadow = 0.0;
+			//}
+			
+		}
+	}
+	else
+	{
+		// more distant than the shadow map covers
+		shadow = 1.0;
+	}
+	
+	gl_FragColor[0] = shadow;
+	gl_FragColor[1] = calcAmbientOcclusion(pos, norm);
+	
+	//spotlight shadow 1
+	vec4 lpos = shadow_matrix[4]*spos;
+	gl_FragColor[2] = pcfShadow(shadowMap4, lpos, 0.8).x; 
+	
+	//spotlight shadow 2
+	lpos = shadow_matrix[5]*spos;
+	gl_FragColor[3] = pcfShadow(shadowMap5, lpos, 0.8).x; 
+
+	//gl_FragColor.rgb = pos.xyz;
+	//gl_FragColor.b = shadow;
+}
-- 
cgit v1.2.3


From 61a47a0f626830cef6c430780f69b5c9ed2d321e Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Mon, 22 Mar 2010 16:10:34 +0000
Subject: screen-space reflections mk4.  generally subtle.  very cheap.

---
 .../shaders/class2/deferred/softenLightF.glsl      | 48 ++++++++++++++++++----
 1 file changed, 40 insertions(+), 8 deletions(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index 589a292751..c5530c5f59 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -55,9 +55,8 @@ vec3 vary_AmblitColor;
 vec3 vary_AdditiveColor;
 vec3 vary_AtmosAttenuation;
 
-vec4 getPosition(vec2 pos_screen)
-{ //get position in screen space (world units) given window coordinate and depth map
-	float depth = texture2DRect(depthMap, pos_screen.xy).a;
+vec4 getPosition_d(vec2 pos_screen, float depth)
+{
 	vec2 sc = pos_screen.xy*2.0;
 	sc /= screen_res;
 	sc -= vec2(1.0,1.0);
@@ -68,6 +67,12 @@ vec4 getPosition(vec2 pos_screen)
 	return pos;
 }
 
+vec4 getPosition(vec2 pos_screen)
+{ //get position in screen space (world units) given window coordinate and depth map
+	float depth = texture2DRect(depthMap, pos_screen.xy).a;
+	return getPosition_d(pos_screen, depth);
+}
+
 vec3 getPositionEye()
 {
 	return vary_PositionEye;
@@ -251,7 +256,8 @@ vec3 scaleSoftClip(vec3 light)
 void main() 
 {
 	vec2 tc = vary_fragcoord.xy;
-	vec3 pos = getPosition(tc).xyz;
+	float depth = texture2DRect(depthMap, tc.xy).a;
+	vec3 pos = getPosition_d(tc, depth).xyz;
 	vec3 norm = texture2DRect(normalMap, tc).xyz*2.0-1.0;
 	//vec3 nz = texture2D(noiseMap, vary_fragcoord.xy/128.0).xyz;
 	
@@ -271,11 +277,37 @@ void main()
 	
 	col *= diffuse.rgb;
 	
-	if (spec.a > 0.0)
+	if (spec.a > 0.0) // specular reflection
 	{
-		vec3 ref = normalize(reflect(pos.xyz, norm.xyz));
-		float sa = dot(ref, vary_light.xyz);
-		col.rgb += vary_SunlitColor*scol_ambocc.r*spec.rgb*texture2D(lightFunc, vec2(sa, spec.a)).a;
+		// the old infinite-sky shiny reflection
+		//
+		vec3 refnorm = normalize(reflect(pos.xyz, norm.xyz));
+		float sa = dot(refnorm, vary_light.xyz);
+		vec3 dumbshiny = vary_SunlitColor*scol_ambocc.r*texture2D(lightFunc, vec2(sa, spec.a)).a;
+
+		// screen-space cheap fakey reflection map
+		//
+		// first figure out where we'll make our 2D guess from
+		vec2 ref2d = tc.xy + (0.5 * screen_res.y) * (refnorm.xy) * abs(refnorm.z) / depth;
+		// get attributes from the 2D guess point
+		float refdepth = texture2DRect(depthMap, ref2d).a;
+		vec3 refpos = getPosition_d(ref2d, refdepth).xyz;
+		vec3 refcol = texture2DRect(diffuseRect, ref2d).rgb;
+		float refshad = texture2DRect(lightMap, ref2d).r;
+		vec3 refn = normalize(texture2DRect(normalMap, ref2d).rgb * 2.0 - 1.0);
+		// figure out how appropriate our guess actually was
+		float refapprop = max(0.0, dot(-refnorm, normalize(pos - refpos)));
+		// darken reflections from points which face away from the reflected ray - our guess was a back-face
+		//refapprop *= step(dot(refnorm, refn), 0.0);
+		refapprop = min(refapprop, max(0.0, -dot(refnorm, refn))); // more conservative variant
+		// get appropriate light strength for guess-point
+		float reflit = min(max(dot(refn, vary_light.xyz), 0.0), refshad);
+		// apply sun color to guess-point, dampen according to inappropriateness of guess
+		vec3 refprod = (vary_SunlitColor*reflit) * refcol.rgb * refapprop;
+		vec3 ssshiny = (refprod * spec.a);
+
+		// add the two types of shiny together
+		col += (ssshiny + dumbshiny) * spec.rgb;
 	}
 	
 	col = atmosLighting(col);
-- 
cgit v1.2.3


From 42b7edb0f1d7e18fae87aa67cbcbca06e8ee1969 Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Fri, 26 Mar 2010 09:07:08 +0000
Subject: screen-space reflections: remember to unbias the value from the depth
 map.  don't use varying version of lightnorm for lighting the
 reflection-guess-point.

---
 indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index c5530c5f59..9305d77ddb 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -287,6 +287,7 @@ void main()
 
 		// screen-space cheap fakey reflection map
 		//
+		depth -= 0.5; // unbias depth
 		// first figure out where we'll make our 2D guess from
 		vec2 ref2d = tc.xy + (0.5 * screen_res.y) * (refnorm.xy) * abs(refnorm.z) / depth;
 		// get attributes from the 2D guess point
@@ -301,7 +302,7 @@ void main()
 		//refapprop *= step(dot(refnorm, refn), 0.0);
 		refapprop = min(refapprop, max(0.0, -dot(refnorm, refn))); // more conservative variant
 		// get appropriate light strength for guess-point
-		float reflit = min(max(dot(refn, vary_light.xyz), 0.0), refshad);
+		float reflit = min(max(dot(refn, lightnorm.xyz), 0.0), refshad);
 		// apply sun color to guess-point, dampen according to inappropriateness of guess
 		vec3 refprod = (vary_SunlitColor*reflit) * refcol.rgb * refapprop;
 		vec3 ssshiny = (refprod * spec.a);
-- 
cgit v1.2.3


From d6cc8b9226d78addd85ef5f2095b230a3a426ad3 Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Sun, 28 Mar 2010 21:45:32 +0100
Subject: ss reflections: make the guess less far from the source.

---
 indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index 9305d77ddb..78e4c179d7 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -289,7 +289,7 @@ void main()
 		//
 		depth -= 0.5; // unbias depth
 		// first figure out where we'll make our 2D guess from
-		vec2 ref2d = tc.xy + (0.5 * screen_res.y) * (refnorm.xy) * abs(refnorm.z) / depth;
+		vec2 ref2d = tc.xy + (0.25 * screen_res.y) * (refnorm.xy) * abs(refnorm.z) / depth;
 		// get attributes from the 2D guess point
 		float refdepth = texture2DRect(depthMap, ref2d).a;
 		vec3 refpos = getPosition_d(ref2d, refdepth).xyz;
-- 
cgit v1.2.3


From a6d45be78af9e5ef547fa594c284a878bdf19ffb Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Mon, 29 Mar 2010 11:30:08 +0100
Subject: ss reflections tweakage: +		// Offset the guess source a
 little according to a trivial +		// checkerboard dither
 function and spec.a. +		// This is meant to be similar to sampling a
 blurred version +		// of the diffuse map.  LOD would be better in
 that regard. +		// The goal of the blur is to soften reflections in
 surfaces +		// with low shinyness, and also to disguise our
 lameness.

---
 .../app_settings/shaders/class2/deferred/softenLightF.glsl        | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index 78e4c179d7..5769288a36 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -290,6 +290,14 @@ void main()
 		depth -= 0.5; // unbias depth
 		// first figure out where we'll make our 2D guess from
 		vec2 ref2d = tc.xy + (0.25 * screen_res.y) * (refnorm.xy) * abs(refnorm.z) / depth;
+		// Offset the guess source a little according to a trivial
+		// checkerboard dither function and spec.a.
+		// This is meant to be similar to sampling a blurred version
+		// of the diffuse map.  LOD would be better in that regard.
+		// The goal of the blur is to soften reflections in surfaces
+		// with low shinyness, and also to disguise our lameness.
+		float checkerboard = floor(mod(tc.x+tc.y, 2.0)); // 0.0, 1.0
+		ref2d += normalize(ref2d)*14.0*(1.0-spec.a)*(checkerboard-0.5);
 		// get attributes from the 2D guess point
 		float refdepth = texture2DRect(depthMap, ref2d).a;
 		vec3 refpos = getPosition_d(ref2d, refdepth).xyz;
-- 
cgit v1.2.3


From 8294a543625e24ffa239e0d838b4f5a86e527efe Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Wed, 31 Mar 2010 18:27:50 +0100
Subject: debug ssreflection blur direction.  minor.

---
 indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index 5769288a36..922a07c306 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -289,7 +289,7 @@ void main()
 		//
 		depth -= 0.5; // unbias depth
 		// first figure out where we'll make our 2D guess from
-		vec2 ref2d = tc.xy + (0.25 * screen_res.y) * (refnorm.xy) * abs(refnorm.z) / depth;
+		vec2 ref2d = (0.25 * screen_res.y) * (refnorm.xy) * abs(refnorm.z) / depth;
 		// Offset the guess source a little according to a trivial
 		// checkerboard dither function and spec.a.
 		// This is meant to be similar to sampling a blurred version
@@ -298,6 +298,7 @@ void main()
 		// with low shinyness, and also to disguise our lameness.
 		float checkerboard = floor(mod(tc.x+tc.y, 2.0)); // 0.0, 1.0
 		ref2d += normalize(ref2d)*14.0*(1.0-spec.a)*(checkerboard-0.5);
+		ref2d += tc.xy; // use as offset from destination
 		// get attributes from the 2D guess point
 		float refdepth = texture2DRect(depthMap, ref2d).a;
 		vec3 refpos = getPosition_d(ref2d, refdepth).xyz;
-- 
cgit v1.2.3


From e9d8427d0542ebd147ad9680deba61e283f032ac Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Fri, 2 Apr 2010 16:03:20 +0100
Subject: apply ssreflection changes to class2 and class3 too.

---
 .../app_settings/shaders/class2/deferred/softenLightF.glsl  | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index 922a07c306..d6fbae7b22 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -281,12 +281,13 @@ void main()
 	{
 		// the old infinite-sky shiny reflection
 		//
-		vec3 refnorm = normalize(reflect(pos.xyz, norm.xyz));
-		float sa = dot(refnorm, vary_light.xyz);
+		vec3 refnormpersp = normalize(reflect(pos.xyz, norm.xyz));
+		float sa = dot(refnormpersp, vary_light.xyz);
 		vec3 dumbshiny = vary_SunlitColor*scol_ambocc.r*texture2D(lightFunc, vec2(sa, spec.a)).a;
 
 		// screen-space cheap fakey reflection map
 		//
+		vec3 refnorm = normalize(reflect(vec3(0,0,-1), norm.xyz));
 		depth -= 0.5; // unbias depth
 		// first figure out where we'll make our 2D guess from
 		vec2 ref2d = (0.25 * screen_res.y) * (refnorm.xy) * abs(refnorm.z) / depth;
@@ -311,9 +312,13 @@ void main()
 		//refapprop *= step(dot(refnorm, refn), 0.0);
 		refapprop = min(refapprop, max(0.0, -dot(refnorm, refn))); // more conservative variant
 		// get appropriate light strength for guess-point
-		float reflit = min(max(dot(refn, lightnorm.xyz), 0.0), refshad);
+		// reflect light direction to increase the illusion that
+		// these are reflections.
+		vec3 reflight = reflect(lightnorm.xyz, norm.xyz);
+		float reflit = max(dot(refn, reflight.xyz), 0.0);
 		// apply sun color to guess-point, dampen according to inappropriateness of guess
-		vec3 refprod = (vary_SunlitColor*reflit) * refcol.rgb * refapprop;
+		float refmod = min(refapprop, reflit);
+		vec3 refprod = vary_SunlitColor * refcol.rgb * refmod;
 		vec3 ssshiny = (refprod * spec.a);
 
 		// add the two types of shiny together
-- 
cgit v1.2.3


From 45a99b8d0d061e5c703141e51f19579b0de00f02 Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Fri, 2 Apr 2010 16:09:31 +0100
Subject: ssreflection: restore the shadow factor I accidentally removed with
 the last update.

---
 indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index d6fbae7b22..00a6a9dcb5 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -315,7 +315,7 @@ void main()
 		// reflect light direction to increase the illusion that
 		// these are reflections.
 		vec3 reflight = reflect(lightnorm.xyz, norm.xyz);
-		float reflit = max(dot(refn, reflight.xyz), 0.0);
+		float reflit = min(max(dot(refn, reflight.xyz), 0.0), refshad);
 		// apply sun color to guess-point, dampen according to inappropriateness of guess
 		float refmod = min(refapprop, reflit);
 		vec3 refprod = vary_SunlitColor * refcol.rgb * refmod;
-- 
cgit v1.2.3


From 429beb3049dd0bac811de2faf4501f2fab597d2f Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Wed, 7 Apr 2010 10:31:56 +0100
Subject: apply latest ssreflections tweaks to class2 and class3.

---
 .../app_settings/shaders/class2/deferred/softenLightF.glsl  | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index 00a6a9dcb5..dbccb7fb8b 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -298,12 +298,19 @@ void main()
 		// The goal of the blur is to soften reflections in surfaces
 		// with low shinyness, and also to disguise our lameness.
 		float checkerboard = floor(mod(tc.x+tc.y, 2.0)); // 0.0, 1.0
-		ref2d += normalize(ref2d)*14.0*(1.0-spec.a)*(checkerboard-0.5);
+		vec2 checkoffset = normalize(ref2d)*5.0*(1.0-spec.a)*(checkerboard-0.5);
+		ref2d += checkoffset;
 		ref2d += tc.xy; // use as offset from destination
-		// get attributes from the 2D guess point
+		// Get attributes from the 2D guess point.
+		// We average two samples of diffuse (not of anything else) per
+		// pixel to try to reduce aliasing some more.
+		// ---------------------
+		//     ^   ^ ^ ^   ^
+		//     a . b o c . d    check=0:avg(a,b) check=1:avg(c,d)
+		vec3 refcol = 0.5 * (texture2DRect(diffuseRect, ref2d).rgb +
+				     texture2DRect(diffuseRect, ref2d + checkoffset*2.0).rgb);
 		float refdepth = texture2DRect(depthMap, ref2d).a;
 		vec3 refpos = getPosition_d(ref2d, refdepth).xyz;
-		vec3 refcol = texture2DRect(diffuseRect, ref2d).rgb;
 		float refshad = texture2DRect(lightMap, ref2d).r;
 		vec3 refn = normalize(texture2DRect(normalMap, ref2d).rgb * 2.0 - 1.0);
 		// figure out how appropriate our guess actually was
-- 
cgit v1.2.3


From 4d6c9c33fa564e13deaa79363a484b391e175477 Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Wed, 7 Apr 2010 12:41:44 -0500
Subject: Shadow aliasing fix WIP

---
 .../shaders/class2/deferred/sunLightF.glsl         | 32 ++++++++++++++++++++--
 1 file changed, 29 insertions(+), 3 deletions(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
index 04c9a4d19a..4974bbef9e 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
@@ -41,6 +41,9 @@ uniform vec2 proj_shadow_res;
 uniform float shadow_bias;
 uniform float shadow_offset;
 
+uniform float spot_shadow_bias;
+uniform float spot_shadow_offset;
+
 vec4 getPosition(vec2 pos_screen)
 {
 	float depth = texture2DRect(depthMap, pos_screen.xy).a;
@@ -72,6 +75,24 @@ float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
 	//return shadow;
 }
 
+float pcfSpotShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
+{
+	stc.xyz /= stc.w;
+	stc.z += spot_shadow_bias*scl;
+	
+	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;
+}
+
 float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
 {
 	stc.xyz /= stc.w;
@@ -114,7 +135,10 @@ void main()
 	float shadow = 1.0;
 	float dp_directional_light = max(0.0, dot(norm, vary_light.xyz));
 
-	vec4 spos = vec4(pos.xyz + displace*norm + vary_light.xyz * (1.0-dp_directional_light)*shadow_offset, 1.0);
+	vec3 shadow_pos = pos.xyz + displace*norm;
+	vec3 offset = vary_light.xyz * (1.0-dp_directional_light);
+	
+	vec4 spos = vec4(shadow_pos+offset*shadow_offset, 1.0);
 	
 	if (spos.z > -shadow_clip.w)
 	{	
@@ -176,13 +200,15 @@ void main()
 	gl_FragColor[0] = shadow;
 	gl_FragColor[1] = 1.0;
 	
+	spos.xyz = shadow_pos*offset*spot_shadow_offset;
+	
 	//spotlight shadow 1
 	vec4 lpos = shadow_matrix[4]*spos;
-	gl_FragColor[2] = pcfShadow(shadowMap4, lpos, 0.8).x; 
+	gl_FragColor[2] = pcfSpotShadow(shadowMap4, lpos, 0.8).x; 
 	
 	//spotlight shadow 2
 	lpos = shadow_matrix[5]*spos;
-	gl_FragColor[3] = pcfShadow(shadowMap5, lpos, 0.8).x; 
+	gl_FragColor[3] = pcfSpotShadow(shadowMap5, lpos, 0.8).x; 
 
 	//gl_FragColor.rgb = pos.xyz;
 	//gl_FragColor.b = shadow;
-- 
cgit v1.2.3


From 49b1995d27e65f1836224c80f3980e133441b0c8 Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Fri, 9 Apr 2010 01:42:50 -0500
Subject: Tweak bias on projectors.  Fix some silly shader mistakes.

---
 .../shaders/class2/deferred/sunLightF.glsl         | 29 ++++------------------
 .../shaders/class2/deferred/sunLightSSAOF.glsl     | 16 +++++++++---
 2 files changed, 17 insertions(+), 28 deletions(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
index 4974bbef9e..46db3c990c 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
@@ -75,28 +75,10 @@ float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
 	//return shadow;
 }
 
-float pcfSpotShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
-{
-	stc.xyz /= stc.w;
-	stc.z += spot_shadow_bias*scl;
-	
-	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;
-}
-
 float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
 {
 	stc.xyz /= stc.w;
-	stc.z += shadow_bias*scl;
+	stc.z += spot_shadow_bias*scl;
 	
 	float cs = shadow2D(shadowMap, stc.xyz).x;
 	float shadow = cs;
@@ -107,8 +89,7 @@ float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
 	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;
@@ -200,15 +181,15 @@ void main()
 	gl_FragColor[0] = shadow;
 	gl_FragColor[1] = 1.0;
 	
-	spos.xyz = shadow_pos*offset*spot_shadow_offset;
+	spos.xyz = shadow_pos+offset*spot_shadow_offset;
 	
 	//spotlight shadow 1
 	vec4 lpos = shadow_matrix[4]*spos;
-	gl_FragColor[2] = pcfSpotShadow(shadowMap4, lpos, 0.8).x; 
+	gl_FragColor[2] = pcfShadow(shadowMap4, lpos, 0.8); 
 	
 	//spotlight shadow 2
 	lpos = shadow_matrix[5]*spos;
-	gl_FragColor[3] = pcfSpotShadow(shadowMap5, lpos, 0.8).x; 
+	gl_FragColor[3] = pcfShadow(shadowMap5, lpos, 0.8); 
 
 	//gl_FragColor.rgb = pos.xyz;
 	//gl_FragColor.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 d77d17942a..a0dfc96f14 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
@@ -40,6 +40,9 @@ uniform vec2 proj_shadow_res;
 uniform float shadow_bias;
 uniform float shadow_offset;
 
+uniform float spot_shadow_bias;
+uniform float spot_shadow_offset;
+
 vec4 getPosition(vec2 pos_screen)
 {
 	float depth = texture2DRect(depthMap, pos_screen.xy).a;
@@ -134,7 +137,7 @@ 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;
+	stc.z += spot_shadow_bias*scl;
 	
 	float cs = shadow2D(shadowMap, stc.xyz).x;
 	float shadow = cs;
@@ -173,7 +176,10 @@ void main()
 	float shadow = 1.0;
 	float dp_directional_light = max(0.0, dot(norm, vary_light.xyz));
 
-	vec4 spos = vec4(pos.xyz + displace*norm + vary_light.xyz * (1.0-dp_directional_light)*shadow_offset, 1.0);
+	vec3 shadow_pos = pos.xyz + displace*norm;
+	vec3 offset = vary_light.xyz * (1.0-dp_directional_light);
+	
+	vec4 spos = vec4(shadow_pos+offset*shadow_offset, 1.0);
 	
 	if (spos.z > -shadow_clip.w)
 	{	
@@ -235,13 +241,15 @@ void main()
 	gl_FragColor[0] = shadow;
 	gl_FragColor[1] = calcAmbientOcclusion(pos, norm);
 	
+	spos.xyz = shadow_pos+offset*spot_shadow_offset;
+	
 	//spotlight shadow 1
 	vec4 lpos = shadow_matrix[4]*spos;
-	gl_FragColor[2] = pcfShadow(shadowMap4, lpos, 0.8).x; 
+	gl_FragColor[2] = pcfShadow(shadowMap4, lpos, 0.8); 
 	
 	//spotlight shadow 2
 	lpos = shadow_matrix[5]*spos;
-	gl_FragColor[3] = pcfShadow(shadowMap5, lpos, 0.8).x; 
+	gl_FragColor[3] = pcfShadow(shadowMap5, lpos, 0.8); 
 
 	//gl_FragColor.rgb = pos.xyz;
 	//gl_FragColor.b = shadow;
-- 
cgit v1.2.3


From f3d4648ef5c670d519945ca72958e161d5aa12f4 Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Fri, 16 Apr 2010 12:19:30 +0100
Subject: strengthen the fakey blur in the fakey ssreflections. (transplanted
 from 940e02cbe4fa2f996d11500392e71f3a00e1cfed) (transplanted from
 1ee9eaf155ed897a5a7b86369c1f5160455094f0)

---
 indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index dbccb7fb8b..1fd54b5607 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -298,7 +298,7 @@ void main()
 		// The goal of the blur is to soften reflections in surfaces
 		// with low shinyness, and also to disguise our lameness.
 		float checkerboard = floor(mod(tc.x+tc.y, 2.0)); // 0.0, 1.0
-		vec2 checkoffset = normalize(ref2d)*5.0*(1.0-spec.a)*(checkerboard-0.5);
+		vec2 checkoffset = normalize(ref2d)*9.0*(1.0-spec.a)*(checkerboard-0.5);
 		ref2d += checkoffset;
 		ref2d += tc.xy; // use as offset from destination
 		// Get attributes from the 2D guess point.
-- 
cgit v1.2.3


From bcf60463c90f65caf13bcb94e2d4a77bee07fe8e Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Wed, 21 Apr 2010 14:27:54 +0100
Subject: port class1 ssreflections tweaks to class2 and class3 (transplanted
 from 19036fc277d88c364e957019a66b4cdf4cce8b53)

---
 .../app_settings/shaders/class2/deferred/softenLightF.glsl    | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index 1fd54b5607..2982cd3e09 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -298,17 +298,14 @@ void main()
 		// The goal of the blur is to soften reflections in surfaces
 		// with low shinyness, and also to disguise our lameness.
 		float checkerboard = floor(mod(tc.x+tc.y, 2.0)); // 0.0, 1.0
-		vec2 checkoffset = normalize(ref2d)*9.0*(1.0-spec.a)*(checkerboard-0.5);
-		ref2d += checkoffset;
+		float checkoffset = 1.0 + (7.0*(1.0-spec.a))*(checkerboard-0.5);
+		ref2d += vec2(checkoffset, checkoffset);
 		ref2d += tc.xy; // use as offset from destination
 		// Get attributes from the 2D guess point.
 		// We average two samples of diffuse (not of anything else) per
 		// pixel to try to reduce aliasing some more.
-		// ---------------------
-		//     ^   ^ ^ ^   ^
-		//     a . b o c . d    check=0:avg(a,b) check=1:avg(c,d)
-		vec3 refcol = 0.5 * (texture2DRect(diffuseRect, ref2d).rgb +
-				     texture2DRect(diffuseRect, ref2d + checkoffset*2.0).rgb);
+		vec3 refcol = 0.5 * (texture2DRect(diffuseRect, ref2d + vec2(0.0, -checkoffset)).rgb +
+				     texture2DRect(diffuseRect, ref2d + vec2(-checkoffset, 0.0)).rgb);
 		float refdepth = texture2DRect(depthMap, ref2d).a;
 		vec3 refpos = getPosition_d(ref2d, refdepth).xyz;
 		float refshad = texture2DRect(lightMap, ref2d).r;
-- 
cgit v1.2.3


From 31f8565e35b1759a6f0d82141ca2538a40fc39c4 Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Thu, 22 Apr 2010 21:33:10 +0100
Subject: ssreflections: dampen/blur ssreflections rather more. (transplanted
 from 4c4ae8d8f0795244fda258c157177e2778bfc444)

---
 indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index 2982cd3e09..28cfc6322e 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -298,7 +298,7 @@ void main()
 		// The goal of the blur is to soften reflections in surfaces
 		// with low shinyness, and also to disguise our lameness.
 		float checkerboard = floor(mod(tc.x+tc.y, 2.0)); // 0.0, 1.0
-		float checkoffset = 1.0 + (7.0*(1.0-spec.a))*(checkerboard-0.5);
+		float checkoffset = (3.0 + (7.0*(1.0-spec.a)))*(checkerboard-0.5);
 		ref2d += vec2(checkoffset, checkoffset);
 		ref2d += tc.xy; // use as offset from destination
 		// Get attributes from the 2D guess point.
@@ -324,6 +324,7 @@ void main()
 		float refmod = min(refapprop, reflit);
 		vec3 refprod = vary_SunlitColor * refcol.rgb * refmod;
 		vec3 ssshiny = (refprod * spec.a);
+		ssshiny *= 0.3; // dampen it even more
 
 		// add the two types of shiny together
 		col += (ssshiny + dumbshiny) * spec.rgb;
-- 
cgit v1.2.3


From a8e51a64d21f34710eb7de8f06d1e0dc4bf4951a Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Fri, 23 Apr 2010 13:37:03 +0100
Subject: Restore a bit of the non-deferred renderer's sun/moon waterglow in
 deferred rendering.  This also adds a slight pinch of glow to shiny
 sun-spots.  So be it. (transplanted from
 5a0d9e5b5cfb2ecd96685f0275ab8e999ab86263) (transplanted from
 90f0ce75b2d7bb9fc03e84245db27a16508cde63)

---
 indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index 28cfc6322e..67ef3d5280 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -269,6 +269,7 @@ void main()
 	vec2 scol_ambocc = texture2DRect(lightMap, vary_fragcoord.xy).rg;
 	float scol = max(scol_ambocc.r, diffuse.a); 
 	float ambocc = scol_ambocc.g;
+	float glowresult = 0.0;
 	
 	calcAtmospherics(pos.xyz, ambocc);
 	
@@ -284,6 +285,7 @@ void main()
 		vec3 refnormpersp = normalize(reflect(pos.xyz, norm.xyz));
 		float sa = dot(refnormpersp, vary_light.xyz);
 		vec3 dumbshiny = vary_SunlitColor*scol_ambocc.r*texture2D(lightFunc, vec2(sa, spec.a)).a;
+		glowresult = 0.08 * dot(dumbshiny.rgb, spec.rgb);
 
 		// screen-space cheap fakey reflection map
 		//
@@ -334,5 +336,5 @@ void main()
 	col = scaleSoftClip(col);
 		
 	gl_FragColor.rgb = col;
-	gl_FragColor.a = 0.0;
+	gl_FragColor.a = glowresult;
 }
-- 
cgit v1.2.3


From 2101531e7f04662ad23f33bad1e4642b6e47bb2c Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Fri, 23 Apr 2010 17:35:26 +0100
Subject: Backed out changeset b379d162769e

---
 indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index 67ef3d5280..28cfc6322e 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -269,7 +269,6 @@ void main()
 	vec2 scol_ambocc = texture2DRect(lightMap, vary_fragcoord.xy).rg;
 	float scol = max(scol_ambocc.r, diffuse.a); 
 	float ambocc = scol_ambocc.g;
-	float glowresult = 0.0;
 	
 	calcAtmospherics(pos.xyz, ambocc);
 	
@@ -285,7 +284,6 @@ void main()
 		vec3 refnormpersp = normalize(reflect(pos.xyz, norm.xyz));
 		float sa = dot(refnormpersp, vary_light.xyz);
 		vec3 dumbshiny = vary_SunlitColor*scol_ambocc.r*texture2D(lightFunc, vec2(sa, spec.a)).a;
-		glowresult = 0.08 * dot(dumbshiny.rgb, spec.rgb);
 
 		// screen-space cheap fakey reflection map
 		//
@@ -336,5 +334,5 @@ void main()
 	col = scaleSoftClip(col);
 		
 	gl_FragColor.rgb = col;
-	gl_FragColor.a = glowresult;
+	gl_FragColor.a = 0.0;
 }
-- 
cgit v1.2.3


From e996eab27850d635461e919549060da569e9dc6b Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Thu, 6 May 2010 13:53:52 +0100
Subject: EXT-6912 FIXED Deferred Rendering - shiny objects look like a
 projection instead of a reflection

Disable screen-space shiny while I chew on it some more.
---
 indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index 28cfc6322e..bc84720b86 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -285,6 +285,7 @@ void main()
 		float sa = dot(refnormpersp, vary_light.xyz);
 		vec3 dumbshiny = vary_SunlitColor*scol_ambocc.r*texture2D(lightFunc, vec2(sa, spec.a)).a;
 
+		/*
 		// screen-space cheap fakey reflection map
 		//
 		vec3 refnorm = normalize(reflect(vec3(0,0,-1), norm.xyz));
@@ -325,6 +326,8 @@ void main()
 		vec3 refprod = vary_SunlitColor * refcol.rgb * refmod;
 		vec3 ssshiny = (refprod * spec.a);
 		ssshiny *= 0.3; // dampen it even more
+		*/
+		vec3 ssshiny = vec3(0,0,0);
 
 		// add the two types of shiny together
 		col += (ssshiny + dumbshiny) * spec.rgb;
-- 
cgit v1.2.3


From 12d3ba4baee93bcb024fbeee0d6f05df6d02935f Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Sun, 9 May 2010 15:02:10 +0100
Subject: Rejig deferred normal-map packing a little, to double its accuracy
 for free.

---
 .../app_settings/shaders/class2/deferred/blurLightF.glsl      |  3 ++-
 indra/newview/app_settings/shaders/class2/deferred/edgeF.glsl | 11 ++++++++---
 .../app_settings/shaders/class2/deferred/multiSpotLightF.glsl |  3 ++-
 .../app_settings/shaders/class2/deferred/softenLightF.glsl    |  7 +++++--
 .../app_settings/shaders/class2/deferred/spotLightF.glsl      |  3 ++-
 .../app_settings/shaders/class2/deferred/sunLightF.glsl       |  3 ++-
 .../app_settings/shaders/class2/deferred/sunLightSSAOF.glsl   |  3 ++-
 7 files changed, 23 insertions(+), 10 deletions(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/blurLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/blurLightF.glsl
index 0fad5b4b50..d1c5d7cb19 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/blurLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/blurLightF.glsl
@@ -37,7 +37,8 @@ vec4 getPosition(vec2 pos_screen)
 
 void main() 
 {
-	vec3 norm = texture2DRect(normalMap, vary_fragcoord.xy).xyz*2.0-1.0;
+	vec3 norm = texture2DRect(normalMap, vary_fragcoord.xy).xyz;
+	norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
 	vec3 pos = getPosition(vary_fragcoord.xy).xyz;
 	vec4 ccol = texture2DRect(lightMap, vary_fragcoord.xy).rgba;
 	
diff --git a/indra/newview/app_settings/shaders/class2/deferred/edgeF.glsl b/indra/newview/app_settings/shaders/class2/deferred/edgeF.glsl
index 02beddd43b..e32e9f4b32 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/edgeF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/edgeF.glsl
@@ -31,7 +31,8 @@ float getDepth(vec2 pos_screen)
 
 void main() 
 {
-	vec3 norm = texture2DRect(normalMap, vary_fragcoord.xy).xyz*2.0-1.0;
+	vec3 norm = texture2DRect(normalMap, vary_fragcoord.xy).xyz;
+	norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
 	float depth = getDepth(vary_fragcoord.xy);
 	
 	vec2 tc = vary_fragcoord.xy;
@@ -46,8 +47,12 @@ void main()
 	de = step(depth_cutoff, de);
 	
 	vec2 ne;
-	ne.x = dot(texture2DRect(normalMap, tc+vec2(-sc,-sc)).rgb*2.0-1.0, norm);
-	ne.y = dot(texture2DRect(normalMap, tc+vec2(sc,sc)).rgb*2.0-1.0, norm);
+	vec3 nexnorm = texture2DRect(normalMap, tc+vec2(-sc,-sc)).rgb;
+	nexnorm = vec3((nexnorm.xy-0.5)*2.0,nexnorm.z); // unpack norm
+	ne.x = dot(nexnorm, norm);
+	vec3 neynorm = texture2DRect(normalMap, tc+vec2(sc,sc)).rgb;
+	neynorm = vec3((neynorm.xy-0.5)*2.0,neynorm.z); // unpack norm
+	ne.y = dot(neynorm, norm);
 	
 	ne = 1.0-ne;
 	
diff --git a/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl
index 5308e5bb1e..22ffb58c63 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl
@@ -129,7 +129,8 @@ void main()
 		shadow = min(sh[proj_shadow_idx]+shadow_fade, 1.0);
 	}
 	
-	vec3 norm = texture2DRect(normalMap, frag.xy).xyz*2.0-1.0;
+	vec3 norm = texture2DRect(normalMap, frag.xy).xyz;
+	norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
 	
 	norm = normalize(norm);
 	float l_dist = -dot(lv, proj_n);
diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index bc84720b86..fd6ae2b960 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -258,7 +258,8 @@ void main()
 	vec2 tc = vary_fragcoord.xy;
 	float depth = texture2DRect(depthMap, tc.xy).a;
 	vec3 pos = getPosition_d(tc, depth).xyz;
-	vec3 norm = texture2DRect(normalMap, tc).xyz*2.0-1.0;
+	vec3 norm = texture2DRect(normalMap, tc).xyz;
+	norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
 	//vec3 nz = texture2D(noiseMap, vary_fragcoord.xy/128.0).xyz;
 	
 	float da = max(dot(norm.xyz, vary_light.xyz), 0.0);
@@ -310,7 +311,9 @@ void main()
 		float refdepth = texture2DRect(depthMap, ref2d).a;
 		vec3 refpos = getPosition_d(ref2d, refdepth).xyz;
 		float refshad = texture2DRect(lightMap, ref2d).r;
-		vec3 refn = normalize(texture2DRect(normalMap, ref2d).rgb * 2.0 - 1.0);
+		vec3 refn = texture2DRect(normalMap, ref2d).rgb;
+		refn = vec3((refn.xy-0.5)*2.0,refn.z); // unpack norm
+		refn = normalize(refn);
 		// figure out how appropriate our guess actually was
 		float refapprop = max(0.0, dot(-refnorm, normalize(pos - refpos)));
 		// darken reflections from points which face away from the reflected ray - our guess was a back-face
diff --git a/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl
index eeaecc157f..8a90199b7c 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl
@@ -82,7 +82,8 @@ void main()
 		discard;
 	}
 	
-	vec3 norm = texture2DRect(normalMap, frag.xy).xyz*2.0-1.0;
+	vec3 norm = texture2DRect(normalMap, frag.xy).xyz;
+	norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
 	
 	norm = normalize(norm);
 	float l_dist = -dot(lv, proj_n);
diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
index 46db3c990c..195a20e9dd 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
@@ -104,8 +104,9 @@ void main()
 	vec4 pos = getPosition(pos_screen);
 	
 	vec4 nmap4 = texture2DRect(normalMap, pos_screen);
+	nmap4 = vec4((nmap4.xy-0.5)*2.0,nmap4.z,nmap4.w); // unpack norm
 	float displace = nmap4.w;
-	vec3 norm = nmap4.xyz*2.0-1.0;
+	vec3 norm = nmap4.xyz;
 	
 	/*if (pos.z == 0.0) // do nothing for sky *FIX: REMOVE THIS IF/WHEN THE POSITION MAP IS BEING USED AS A STENCIL
 	{
diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
index a0dfc96f14..4e33a1af45 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
@@ -164,8 +164,9 @@ void main()
 	vec4 pos = getPosition(pos_screen);
 	
 	vec4 nmap4 = texture2DRect(normalMap, pos_screen);
+	nmap4 = vec4((nmap4.xy-0.5)*2.0,nmap4.z,nmap4.w); // unpack norm
 	float displace = nmap4.w;
-	vec3 norm = nmap4.xyz*2.0-1.0;
+	vec3 norm = nmap4.xyz;
 	
 	/*if (pos.z == 0.0) // do nothing for sky *FIX: REMOVE THIS IF/WHEN THE POSITION MAP IS BEING USED AS A STENCIL
 	{
-- 
cgit v1.2.3


From b0e471af03bca5d5db6d82cb86ea3424d2cab7fd Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Tue, 11 May 2010 00:57:30 -0500
Subject: EXT-7225 Fix for busted projector shadows under certain settings.
 (transplanted from 63218c79aa5670331235d3fde25de4a595991460)

---
 indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
index 195a20e9dd..70e241b53a 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
@@ -77,6 +77,7 @@ float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
 
 float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
 {
+	stc.z += spot_shadow_offset;
 	stc.xyz /= stc.w;
 	stc.z += spot_shadow_bias*scl;
 	
@@ -182,7 +183,7 @@ void main()
 	gl_FragColor[0] = shadow;
 	gl_FragColor[1] = 1.0;
 	
-	spos.xyz = shadow_pos+offset*spot_shadow_offset;
+	spos = vec4(shadow_pos, 1.0);
 	
 	//spotlight shadow 1
 	vec4 lpos = shadow_matrix[4]*spos;
-- 
cgit v1.2.3


From 4a3222d9c12812db70f2c9ec0050012d01155565 Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Wed, 12 May 2010 03:59:01 -0500
Subject: Fix for fullbright bump not working in deferred render. Fix for
 shadow artifacts around split frusta. Tweak for shadow aliasing with
 projectors. Fix for crash on exit in mesh thread. (transplanted from
 6dcf09cd3e524016c8130a0c8af3d9fc95f2d411)

---
 indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'indra/newview/app_settings/shaders/class2')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
index 70e241b53a..7423347346 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
@@ -77,7 +77,6 @@ float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
 
 float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
 {
-	stc.z += spot_shadow_offset;
 	stc.xyz /= stc.w;
 	stc.z += spot_shadow_bias*scl;
 	
@@ -183,7 +182,7 @@ void main()
 	gl_FragColor[0] = shadow;
 	gl_FragColor[1] = 1.0;
 	
-	spos = vec4(shadow_pos, 1.0);
+	spos = vec4(shadow_pos+norm*spot_shadow_offset, 1.0);
 	
 	//spotlight shadow 1
 	vec4 lpos = shadow_matrix[4]*spos;
-- 
cgit v1.2.3