Remove some unused shaders

6 files changed, 0 insertions, 1446 deletions

diff --git a/indra/newview/app_settings/shaders/class2/deferred/edgeMSF.glsl b/indra/newview/app_settings/shaders/class2/deferred/edgeMSF.glsl
deleted file mode 100644
index b9c65b168c..0000000000
--- a/indra/newview/app_settings/shaders/class2/deferred/edgeMSF.glsl
+++ /dev/null
@@ -1,94 +0,0 @@
-/** 
- * @file edgeF.glsl
- *
- * $LicenseInfo:firstyear=2007&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2007, Linden Research, Inc.
- * 
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- * 
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- * 
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- * 
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
- * $/LicenseInfo$
- */
- 
-#extension GL_ARB_texture_rectangle : enable
-#extension GL_ARB_texture_multisample : enable
-
-#ifdef DEFINE_GL_FRAGCOLOR
-out vec4 gl_FragColor;
-#endif
-
-uniform sampler2DMS depthMap;
-uniform sampler2DMS normalMap;
-
-VARYING vec2 vary_fragcoord;
-
-uniform float depth_cutoff;
-uniform float norm_cutoff;
-
-uniform mat4 inv_proj;
-uniform vec2 screen_res;
-
-float getDepth(ivec2 pos_screen, int sample)
-{
-	float z = texelFetch(depthMap, pos_screen, sample).r;
-	z = z*2.0-1.0;
-	vec4 ndc = vec4(0.0, 0.0, z, 1.0);
-	vec4 p = inv_proj*ndc;
-	return p.z/p.w;
-}
-
-void main() 
-{
-	float e = 0;
-	
-	ivec2 itc = ivec2(vary_fragcoord.xy);
-
-	for (int i = 0; i < samples; i++)
-	{	
-		vec3 norm = texelFetch(normalMap, itc, i).xyz;
-		norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
-		float depth = getDepth(itc, i);
-	
-		vec2 tc = vary_fragcoord.xy;
-	
-		int sc = 1;
-	
-		vec2 de;
-		de.x = (depth-getDepth(itc+ivec2(sc, sc),i)) + (depth-getDepth(itc+ivec2(-sc, -sc), i));
-		de.y = (depth-getDepth(itc+ivec2(-sc, sc),i)) + (depth-getDepth(itc+ivec2(sc, -sc), i));
-		de /= depth;
-		de *= de;
-		de = step(depth_cutoff, de);
-	
-		vec2 ne;
-		vec3 nexnorm = texelFetch(normalMap, itc+ivec2(-sc,-sc), i).rgb;
-		nexnorm = vec3((nexnorm.xy-0.5)*2.0,nexnorm.z); // unpack norm
-		ne.x = dot(nexnorm, norm);
-		vec3 neynorm = texelFetch(normalMap, itc+ivec2(sc,sc), i).rgb;
-		neynorm = vec3((neynorm.xy-0.5)*2.0,neynorm.z); // unpack norm
-		ne.y = dot(neynorm, norm);
-	
-		ne = 1.0-ne;
-	
-		ne = step(norm_cutoff, ne);
-
-		e += dot(de,de)+dot(ne,ne);
-	}
-
-	e /= samples;
-	
-	gl_FragColor.a = e;
-}
diff --git a/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightMSF.glsl b/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightMSF.glsl
deleted file mode 100644
index 4037dca91a..0000000000
--- a/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightMSF.glsl
+++ /dev/null
@@ -1,265 +0,0 @@
-/** 
- * @file multiSpotLightF.glsl
- *
- * $LicenseInfo:firstyear=2007&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2007, Linden Research, Inc.
- * 
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- * 
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- * 
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- * 
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
- * $/LicenseInfo$
- */
-
-#extension GL_ARB_texture_rectangle : enable
-#extension GL_ARB_texture_multisample : enable
-
-#ifdef DEFINE_GL_FRAGCOLOR
-out vec4 gl_FragColor;
-#endif
-
-VARYING vec4 vertex_color;
-
-uniform sampler2DMS diffuseRect;
-uniform sampler2DMS specularRect;
-uniform sampler2DMS depthMap;
-uniform sampler2DMS normalMap;
-uniform sampler2DRect lightMap;
-uniform sampler2D noiseMap;
-uniform sampler2D projectionMap;
-
-uniform mat4 proj_mat; //screen space to light space
-uniform float proj_near; //near clip for projection
-uniform vec3 proj_p; //plane projection is emitting from (in screen space)
-uniform vec3 proj_n;
-uniform float proj_focus; //distance from plane to begin blurring
-uniform float proj_lod;  //(number of mips in proj map)
-uniform float proj_range; //range between near clip and far clip plane of projection
-uniform float proj_ambient_lod;
-uniform float proj_ambiance;
-uniform float near_clip;
-uniform float far_clip;
-
-uniform vec3 proj_origin; //origin of projection to be used for angular attenuation
-uniform float sun_wash;
-uniform int proj_shadow_idx;
-uniform float shadow_fade;
-
-VARYING vec4 vary_light;
-
-VARYING vec4 vary_fragcoord;
-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(ivec2 pos_screen, int sample)
-{
-	float depth = texelFetch(depthMap, pos_screen, sample).r;
-	vec2 sc = vec2(pos_screen.xy)*2.0;
-	sc /= screen_res;
-	sc -= vec2(1.0,1.0);
-	vec4 ndc = vec4(sc.x, sc.y, 2.0*depth-1.0, 1.0);
-	vec4 pos = inv_proj * ndc;
-	pos /= pos.w;
-	pos.w = 1.0;
-	return pos;
-}
-
-void main() 
-{
-	int wght = 0;
-
-	vec3 fcol = vec3(0,0,0);
-
-	vec2 frag = (vary_fragcoord.xy*0.5+0.5)*screen_res;
-	
-	ivec2 itc = ivec2(frag.xy);
-
-	float shadow = 1.0;
-
-	if (proj_shadow_idx >= 0)
-	{
-		vec4 shd = texture2DRect(lightMap, frag);
-		float sh[2];
-		sh[0] = shd.b;
-		sh[1] = shd.a;
-		shadow = min(sh[proj_shadow_idx]+shadow_fade, 1.0);
-	}
-		
-	for (int i = 0; i < samples; i++)
-	{
-		vec3 pos = getPosition(itc, i).xyz;
-		vec3 lv = vary_light.xyz-pos.xyz;
-		float dist2 = dot(lv,lv);
-		dist2 /= vary_light.w;
-		if (dist2 <= 1.0)
-		{
-			vec3 norm = texelFetch(normalMap, itc, i).xyz;
-			norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
-	
-			norm = normalize(norm);
-			float l_dist = -dot(lv, proj_n);
-	
-			vec4 proj_tc = (proj_mat * vec4(pos.xyz, 1.0));
-			if (proj_tc.z >= 0.0)
-			{
-				proj_tc.xyz /= proj_tc.w;
-	
-				float fa = vertex_color.a+1.0;
-				float dist_atten = min(1.0-(dist2-1.0*(1.0-fa))/fa, 1.0);
-				if (dist_atten > 0.0)
-				{
-					lv = proj_origin-pos.xyz;
-					lv = normalize(lv);
-					float da = dot(norm, lv);
-		
-					vec3 col = vec3(0,0,0);
-		
-					vec3 diff_tex = texelFetch(diffuseRect, itc, i).rgb;
-		
-					float noise = texture2D(noiseMap, frag.xy/128.0).b;
-					if (proj_tc.z > 0.0 &&
-						proj_tc.x < 1.0 &&
-						proj_tc.y < 1.0 &&
-						proj_tc.x > 0.0 &&
-						proj_tc.y > 0.0)
-					{
-						float lit = 0.0;
-						float amb_da = proj_ambiance;
-		
-						if (da > 0.0)
-						{
-							float diff = clamp((l_dist-proj_focus)/proj_range, 0.0, 1.0);
-							float lod = diff * proj_lod;
-			
-							vec4 plcol = texture2DLodDiffuse(projectionMap, proj_tc.xy, lod);
-		
-							vec3 lcol = vertex_color.rgb * plcol.rgb * plcol.a;
-			
-							lit = da * dist_atten * noise;
-			
-							col = lcol*lit*diff_tex*shadow;
-							amb_da += (da*0.5)*(1.0-shadow)*proj_ambiance;
-						}
-		
-						//float diff = clamp((proj_range-proj_focus)/proj_range, 0.0, 1.0);
-						vec4 amb_plcol = texture2DLodAmbient(projectionMap, proj_tc.xy, proj_lod);
-							
-						amb_da += (da*da*0.5+0.5)*proj_ambiance;
-				
-						amb_da *= dist_atten * noise;
-			
-						amb_da = min(amb_da, 1.0-lit);
-			
-						col += amb_da*vertex_color.rgb*diff_tex.rgb*amb_plcol.rgb*amb_plcol.a;
-					}
-	
-	
-					vec4 spec = texelFetch(specularRect, itc, i);
-					if (spec.a > 0.0)
-					{
-						vec3 ref = reflect(normalize(pos), norm);
-		
-						//project from point pos in direction ref to plane proj_p, proj_n
-						vec3 pdelta = proj_p-pos;
-						float ds = dot(ref, proj_n);
-		
-						if (ds < 0.0)
-						{
-							vec3 pfinal = pos + ref * dot(pdelta, proj_n)/ds;
-			
-							vec4 stc = (proj_mat * vec4(pfinal.xyz, 1.0));
-
-							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 = texture2DLodSpecular(projectionMap, stc.xy, proj_lod-spec.a*proj_lod);
-									col += dist_atten*scol.rgb*vertex_color.rgb*scol.a*spec.rgb*shadow;
-								}
-							}
-						}
-					}
-
-					fcol += col;
-					wght++;
-				}
-			}
-		}
-	}
-	
-	if (wght <= 0)
-	{
-		discard;
-	}
-
-	gl_FragColor.rgb = fcol/samples;	
-	gl_FragColor.a = 0.0;
-}
diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightMSF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightMSF.glsl
deleted file mode 100644
index 62a86a3f09..0000000000
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightMSF.glsl
+++ /dev/null
@@ -1,339 +0,0 @@
-/** 
- * @file softenLightMSF.glsl
- *
- * $LicenseInfo:firstyear=2007&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2007, Linden Research, Inc.
- * 
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- * 
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- * 
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- * 
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
- * $/LicenseInfo$
- */
- 
-#extension GL_ARB_texture_rectangle : enable
-#extension GL_ARB_texture_multisample : enable
-
-#ifdef DEFINE_GL_FRAGCOLOR
-out vec4 gl_FragColor;
-#endif
-
-uniform sampler2DMS diffuseRect;
-uniform sampler2DMS specularRect;
-uniform sampler2DMS normalMap;
-uniform sampler2DRect lightMap;
-uniform sampler2DMS depthMap;
-uniform sampler2D	  noiseMap;
-uniform samplerCube environmentMap;
-uniform sampler2D	  lightFunc;
-uniform vec3 gi_quad;
-
-uniform float blur_size;
-uniform float blur_fidelity;
-
-// Inputs
-uniform vec4 morphFactor;
-uniform vec3 camPosLocal;
-//uniform vec4 camPosWorld;
-uniform vec4 gamma;
-uniform vec4 lightnorm;
-uniform vec4 sunlight_color;
-uniform vec4 ambient;
-uniform vec4 blue_horizon;
-uniform vec4 blue_density;
-uniform vec4 haze_horizon;
-uniform vec4 haze_density;
-uniform vec4 cloud_shadow;
-uniform vec4 density_multiplier;
-uniform vec4 distance_multiplier;
-uniform vec4 max_y;
-uniform vec4 glow;
-uniform float scene_light_strength;
-uniform vec3 env_mat[3];
-uniform vec4 shadow_clip;
-uniform mat3 ssao_effect_mat;
-
-uniform mat4 inv_proj;
-uniform vec2 screen_res;
-
-VARYING vec4 vary_light;
-VARYING vec2 vary_fragcoord;
-
-vec3 vary_PositionEye;
-
-vec3 vary_SunlitColor;
-vec3 vary_AmblitColor;
-vec3 vary_AdditiveColor;
-vec3 vary_AtmosAttenuation;
-
-vec4 getPosition_d(vec2 pos_screen, float depth)
-{
-	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;
-}
-
-vec3 getPositionEye()
-{
-	return vary_PositionEye;
-}
-vec3 getSunlitColor()
-{
-	return vary_SunlitColor;
-}
-vec3 getAmblitColor()
-{
-	return vary_AmblitColor;
-}
-vec3 getAdditiveColor()
-{
-	return vary_AdditiveColor;
-}
-vec3 getAtmosAttenuation()
-{
-	return vary_AtmosAttenuation;
-}
-
-
-void setPositionEye(vec3 v)
-{
-	vary_PositionEye = v;
-}
-
-void setSunlitColor(vec3 v)
-{
-	vary_SunlitColor = v;
-}
-
-void setAmblitColor(vec3 v)
-{
-	vary_AmblitColor = v;
-}
-
-void setAdditiveColor(vec3 v)
-{
-	vary_AdditiveColor = v;
-}
-
-void setAtmosAttenuation(vec3 v)
-{
-	vary_AtmosAttenuation = v;
-}
-
-void calcAtmospherics(vec3 inPositionEye, float ambFactor) {
-
-	vec3 P = inPositionEye;
-	setPositionEye(P);
-	
-	//(TERRAIN) limit altitude
-	if (P.y > max_y.x) P *= (max_y.x / P.y);
-	if (P.y < -max_y.x) P *= (-max_y.x / P.y);
-
-	vec3 tmpLightnorm = lightnorm.xyz;
-
-	vec3 Pn = normalize(P);
-	float Plen = length(P);
-
-	vec4 temp1 = vec4(0);
-	vec3 temp2 = vec3(0);
-	vec4 blue_weight;
-	vec4 haze_weight;
-	vec4 sunlight = sunlight_color;
-	vec4 light_atten;
-
-	//sunlight attenuation effect (hue and brightness) due to atmosphere
-	//this is used later for sunlight modulation at various altitudes
-	light_atten = (blue_density * 1.0 + vec4(haze_density.r) * 0.25) * (density_multiplier.x * max_y.x);
-		//I had thought blue_density and haze_density should have equal weighting,
-		//but attenuation due to haze_density tends to seem too strong
-
-	temp1 = blue_density + vec4(haze_density.r);
-	blue_weight = blue_density / temp1;
-	haze_weight = vec4(haze_density.r) / temp1;
-
-	//(TERRAIN) compute sunlight from lightnorm only (for short rays like terrain)
-	temp2.y = max(0.0, tmpLightnorm.y);
-	temp2.y = 1. / temp2.y;
-	sunlight *= exp( - light_atten * temp2.y);
-
-	// main atmospheric scattering line integral
-	temp2.z = Plen * density_multiplier.x;
-
-	// Transparency (-> temp1)
-	// ATI Bugfix -- can't store temp1*temp2.z*distance_multiplier.x in a variable because the ati
-	// compiler gets confused.
-	temp1 = exp(-temp1 * temp2.z * distance_multiplier.x);
-
-	//final atmosphere attenuation factor
-	setAtmosAttenuation(temp1.rgb);
-	
-	//compute haze glow
-	//(can use temp2.x as temp because we haven't used it yet)
-	temp2.x = dot(Pn, tmpLightnorm.xyz);
-	temp2.x = 1. - temp2.x;
-		//temp2.x is 0 at the sun and increases away from sun
-	temp2.x = max(temp2.x, .03);	//was glow.y
-		//set a minimum "angle" (smaller glow.y allows tighter, brighter hotspot)
-	temp2.x *= glow.x;
-		//higher glow.x gives dimmer glow (because next step is 1 / "angle")
-	temp2.x = pow(temp2.x, glow.z);
-		//glow.z should be negative, so we're doing a sort of (1 / "angle") function
-
-	//add "minimum anti-solar illumination"
-	temp2.x += .25;
-	
-	//increase ambient when there are more clouds
-	vec4 tmpAmbient = ambient + (vec4(1.) - ambient) * cloud_shadow.x * 0.5;
-	
-	/*  decrease value and saturation (that in HSV, not HSL) for occluded areas
-	 * // for HSV color/geometry used here, see http://gimp-savvy.com/BOOK/index.html?node52.html
-	 * // The following line of code performs the equivalent of:
-	 * float ambAlpha = tmpAmbient.a;
-	 * float ambValue = dot(vec3(tmpAmbient), vec3(0.577)); // projection onto <1/rt(3), 1/rt(3), 1/rt(3)>, the neutral white-black axis
-	 * vec3 ambHueSat = vec3(tmpAmbient) - vec3(ambValue);
-	 * tmpAmbient = vec4(RenderSSAOEffect.valueFactor * vec3(ambValue) + RenderSSAOEffect.saturationFactor *(1.0 - ambFactor) * ambHueSat, ambAlpha);
-	 */
-	tmpAmbient = vec4(mix(ssao_effect_mat * tmpAmbient.rgb, tmpAmbient.rgb, ambFactor), tmpAmbient.a);
-
-	//haze color
-	setAdditiveColor(
-		vec3(blue_horizon * blue_weight * (sunlight*(1.-cloud_shadow.x) + tmpAmbient)
-	  + (haze_horizon.r * haze_weight) * (sunlight*(1.-cloud_shadow.x) * temp2.x
-		  + tmpAmbient)));
-
-	//brightness of surface both sunlight and ambient
-	setSunlitColor(vec3(sunlight * .5));
-	setAmblitColor(vec3(tmpAmbient * .25));
-	setAdditiveColor(getAdditiveColor() * vec3(1.0 - temp1));
-}
-
-vec3 atmosLighting(vec3 light)
-{
-	light *= getAtmosAttenuation().r;
-	light += getAdditiveColor();
-	return (2.0 * light);
-}
-
-vec3 atmosTransport(vec3 light) {
-	light *= getAtmosAttenuation().r;
-	light += getAdditiveColor() * 2.0;
-	return light;
-}
-vec3 atmosGetDiffuseSunlightColor()
-{
-	return getSunlitColor();
-}
-
-vec3 scaleDownLight(vec3 light)
-{
-	return (light / scene_light_strength );
-}
-
-vec3 scaleUpLight(vec3 light)
-{
-	return (light * scene_light_strength);
-}
-
-vec3 atmosAmbient(vec3 light)
-{
-	return getAmblitColor() + light / 2.0;
-}
-
-vec3 atmosAffectDirectionalLight(float lightIntensity)
-{
-	return getSunlitColor() * lightIntensity;
-}
-
-vec3 scaleSoftClip(vec3 light)
-{
-	//soft clip effect:
-	light = 1. - clamp(light, vec3(0.), vec3(1.));
-	light = 1. - pow(light, gamma.xxx);
-
-	return light;
-}
-
-void main() 
-{
-	vec2 tc = vary_fragcoord.xy;
-	ivec2 itc = ivec2(tc);
-
-	vec4 fcol = vec4(0,0,0,0);
-
-	vec2 scol_ambocc = texture2DRect(lightMap, tc).rg;
-	float ambocc = scol_ambocc.g;
-
-	for (int i = 0; i < samples; ++i)
-	{
-		float depth = texelFetch(depthMap, itc.xy, i).r;
-		vec3 pos = getPosition_d(tc, depth).xyz;
-		vec3 norm = texelFetch(normalMap, itc, i).xyz;
-		norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
-			
-		float da = max(dot(norm.xyz, vary_light.xyz), 0.0);
-	
-		vec4 diffuse = texelFetch(diffuseRect, itc, i);
-		vec3 col;
-		float bloom = 0.0;
-		if (diffuse.a < 0.9)
-		{
-			vec4 spec = texelFetch(specularRect, itc, i);
-	
-			float amb = 0;
-
-			float scol = max(scol_ambocc.r, diffuse.a); 
-			amb += ambocc;
-
-			calcAtmospherics(pos.xyz, ambocc);
-	
-			col = atmosAmbient(vec3(0));
-			col += atmosAffectDirectionalLight(max(min(da, scol), diffuse.a));
-	
-			col *= diffuse.rgb;
-	
-			if (spec.a > 0.0) // specular reflection
-			{
-				// the old infinite-sky shiny reflection
-				//
-				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)).r;
-
-				// add the two types of shiny together
-				vec3 spec_contrib = dumbshiny * spec.rgb;
-				bloom = dot(spec_contrib, spec_contrib);
-				col += spec_contrib;
-			}
-	
-			col = atmosLighting(col);
-			col = scaleSoftClip(col);
-
-			col = mix(col, diffuse.rgb, diffuse.a);
-		}
-		else
-		{
-			col = diffuse.rgb;
-		}
-
-		fcol += vec4(col, bloom);
-	}
-		
-	gl_FragColor = fcol/samples; 
-}
diff --git a/indra/newview/app_settings/shaders/class2/deferred/spotLightMSF.glsl b/indra/newview/app_settings/shaders/class2/deferred/spotLightMSF.glsl
deleted file mode 100644
index af3487fd91..0000000000
--- a/indra/newview/app_settings/shaders/class2/deferred/spotLightMSF.glsl
+++ /dev/null
@@ -1,266 +0,0 @@
-/** 
- * @file multiSpotLightF.glsl
- *
- * $LicenseInfo:firstyear=2007&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2007, Linden Research, Inc.
- * 
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- * 
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- * 
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- * 
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
- * $/LicenseInfo$
- */
-
-#extension GL_ARB_texture_rectangle : enable
-#extension GL_ARB_texture_multisample : enable
-
-#ifdef DEFINE_GL_FRAGCOLOR
-out vec4 gl_FragColor;
-#endif
-
-VARYING vec4 vertex_color;
-
-uniform sampler2DMS diffuseRect;
-uniform sampler2DMS specularRect;
-uniform sampler2DMS depthMap;
-uniform sampler2DMS normalMap;
-uniform sampler2DRect lightMap;
-uniform sampler2D noiseMap;
-uniform sampler2D projectionMap;
-
-uniform mat4 proj_mat; //screen space to light space
-uniform float proj_near; //near clip for projection
-uniform vec3 proj_p; //plane projection is emitting from (in screen space)
-uniform vec3 proj_n;
-uniform float proj_focus; //distance from plane to begin blurring
-uniform float proj_lod;  //(number of mips in proj map)
-uniform float proj_range; //range between near clip and far clip plane of projection
-uniform float proj_ambient_lod;
-uniform float proj_ambiance;
-uniform float near_clip;
-uniform float far_clip;
-
-uniform vec3 proj_origin; //origin of projection to be used for angular attenuation
-uniform float sun_wash;
-uniform int proj_shadow_idx;
-uniform float shadow_fade;
-
-VARYING vec4 vary_light;
-
-VARYING vec4 vary_fragcoord;
-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(ivec2 pos_screen, int sample)
-{
-	float depth = texelFetch(depthMap, pos_screen, sample).r;
-	vec2 sc = vec2(pos_screen.xy)*2.0;
-	sc /= screen_res;
-	sc -= vec2(1.0,1.0);
-	vec4 ndc = vec4(sc.x, sc.y, 2.0*depth-1.0, 1.0);
-	vec4 pos = inv_proj * ndc;
-	pos /= pos.w;
-	pos.w = 1.0;
-	return pos;
-}
-
-void main() 
-{
-	vec4 frag = vary_fragcoord;
-	frag.xyz /= frag.w;
-	frag.xyz = frag.xyz*0.5+0.5;
-	frag.xy *= screen_res;
-	ivec2 itc = ivec2(frag.xy);
-	
-	vec3 fcol = vec3(0,0,0);
-	int wght = 0;
-
-	float shadow = 1.0;
-	
-	if (proj_shadow_idx >= 0)
-	{
-		vec4 shd = texture2DRect(lightMap, frag.xy);
-		float sh[2];
-		sh[0] = shd.b;
-		sh[1] = shd.a;
-		shadow = min(sh[proj_shadow_idx]+shadow_fade, 1.0);
-	}
-	
-	for (int i = 0; i < samples; i++)
-	{
-		vec3 pos = getPosition(itc, i).xyz;
-		vec3 lv = vary_light.xyz-pos.xyz;
-		float dist2 = dot(lv,lv);
-		dist2 /= vary_light.w;
-		if (dist2 <= 1.0)
-		{
-			vec3 norm = texelFetch(normalMap, itc, i).xyz;
-			norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
-	
-			norm = normalize(norm);
-			float l_dist = -dot(lv, proj_n);
-	
-			vec4 proj_tc = (proj_mat * vec4(pos.xyz, 1.0));
-			if (proj_tc.z >= 0.0)
-			{
-				proj_tc.xyz /= proj_tc.w;
-	
-				float fa = vertex_color.a+1.0;
-				float dist_atten = min(1.0-(dist2-1.0*(1.0-fa))/fa, 1.0);
-				if (dist_atten > 0.0)
-				{
-					lv = proj_origin-pos.xyz;
-					lv = normalize(lv);
-					float da = dot(norm, lv);
-		
-					vec3 col = vec3(0,0,0);
-		
-					vec3 diff_tex = texelFetch(diffuseRect, itc, i).rgb;
-		
-					float noise = texture2D(noiseMap, frag.xy/128.0).b;
-					if (proj_tc.z > 0.0 &&
-						proj_tc.x < 1.0 &&
-						proj_tc.y < 1.0 &&
-						proj_tc.x > 0.0 &&
-						proj_tc.y > 0.0)
-					{
-						float lit = 0.0;
-						float amb_da = proj_ambiance;
-		
-						if (da > 0.0)
-						{
-							float diff = clamp((l_dist-proj_focus)/proj_range, 0.0, 1.0);
-							float lod = diff * proj_lod;
-			
-							vec4 plcol = texture2DLodDiffuse(projectionMap, proj_tc.xy, lod);
-		
-							vec3 lcol = vertex_color.rgb * plcol.rgb * plcol.a;
-			
-							lit = da * dist_atten * noise;
-			
-							col = lcol*lit*diff_tex*shadow;
-							amb_da += (da*0.5)*(1.0-shadow)*proj_ambiance;
-						}
-		
-						//float diff = clamp((proj_range-proj_focus)/proj_range, 0.0, 1.0);
-						vec4 amb_plcol = texture2DLodAmbient(projectionMap, proj_tc.xy, proj_lod);
-							
-						amb_da += (da*da*0.5+0.5)*proj_ambiance;
-				
-						amb_da *= dist_atten * noise;
-			
-						amb_da = min(amb_da, 1.0-lit);
-			
-						col += amb_da*vertex_color.rgb*diff_tex.rgb*amb_plcol.rgb*amb_plcol.a;
-					}
-	
-	
-					vec4 spec = texelFetch(specularRect, itc, i);
-					if (spec.a > 0.0)
-					{
-						vec3 ref = reflect(normalize(pos), norm);
-		
-						//project from point pos in direction ref to plane proj_p, proj_n
-						vec3 pdelta = proj_p-pos;
-						float ds = dot(ref, proj_n);
-		
-						if (ds < 0.0)
-						{
-							vec3 pfinal = pos + ref * dot(pdelta, proj_n)/ds;
-			
-							vec4 stc = (proj_mat * vec4(pfinal.xyz, 1.0));
-
-							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 = texture2DLodSpecular(projectionMap, stc.xy, proj_lod-spec.a*proj_lod);
-									col += dist_atten*scol.rgb*vertex_color.rgb*scol.a*spec.rgb*shadow;
-								}
-							}
-						}
-					}
-
-					fcol += col;
-					wght++;
-				}
-			}
-		}
-	}
-	
-	if (wght <= 0)
-	{
-		discard;
-	}
-
-	gl_FragColor.rgb = fcol/wght;	
-	gl_FragColor.a = 0.0;
-}
diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightMSF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightMSF.glsl
deleted file mode 100644
index 11b3faa4c9..0000000000
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightMSF.glsl
+++ /dev/null
@@ -1,222 +0,0 @@
-/** 
- * @file sunLightMSF.glsl
- *
- * $LicenseInfo:firstyear=2007&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2007, Linden Research, Inc.
- * 
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- * 
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- * 
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- * 
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
- * $/LicenseInfo$
- */
- 
-#extension GL_ARB_texture_rectangle : enable
-#extension GL_ARB_texture_multisample : enable
-
-#ifdef DEFINE_GL_FRAGCOLOR
-out vec4 gl_FragColor;
-#endif
-
-//class 2, shadows, no SSAO
-
-uniform sampler2DMS depthMap;
-uniform sampler2DMS normalMap;
-uniform sampler2DRectShadow shadowMap0;
-uniform sampler2DRectShadow shadowMap1;
-uniform sampler2DRectShadow shadowMap2;
-uniform sampler2DRectShadow shadowMap3;
-uniform sampler2DShadow shadowMap4;
-uniform sampler2DShadow shadowMap5;
-
-
-// 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;
-
-uniform float spot_shadow_bias;
-uniform float spot_shadow_offset;
-
-vec4 getPosition(ivec2 pos_screen, int sample)
-{
-	float depth = texelFetch(depthMap, pos_screen.xy, sample).r;
-	vec2 sc = vec2(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;
-}
-
-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 += spot_shadow_bias*scl;
-	
-	float cs = shadow2D(shadowMap, stc.xyz);
-	float shadow = cs;
-
-	vec2 off = 1.5/proj_shadow_res;
-	
-	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(off.x, off.y, 0.0)), cs);
-	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(off.x, -off.y, 0.0)), cs);
-	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(-off.x, off.y, 0.0)), cs);
-	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(-off.x, -off.y, 0.0)), cs);
-				
-	return shadow/5.0;
-	
-	//return shadow;
-}
-
-void main() 
-{
-	vec2 pos_screen = vary_fragcoord.xy;
-	ivec2 itc = ivec2(pos_screen);
-
-	//try doing an unproject here
-	
-	vec4 fcol = vec4(0,0,0,0);
-
-	for (int i = 0; i < samples; i++)
-	{
-		vec4 pos = getPosition(itc, i);
-	
-		vec4 nmap4 = texelFetch(normalMap, itc, i);
-		nmap4 = vec4((nmap4.xy-0.5)*2.0,nmap4.z,nmap4.w); // unpack norm
-		float displace = nmap4.w;
-		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
-		{
-			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));
-
-		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)
-		{	
-			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;
-		}
-	
-		fcol[0] += shadow;
-		fcol[1] += 1.0;
-
-		spos = vec4(shadow_pos+norm*spot_shadow_offset, 1.0);
-	
-		//spotlight shadow 1
-		vec4 lpos = shadow_matrix[4]*spos;
-		fcol[2] += pcfShadow(shadowMap4, lpos, 0.8); 
-	
-		//spotlight shadow 2
-		lpos = shadow_matrix[5]*spos;
-		fcol[3] += pcfShadow(shadowMap5, lpos, 0.8); 
-	}
-
-	gl_FragColor = fcol/samples;
-}
diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOMSF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOMSF.glsl
deleted file mode 100644
index c571db9df2..0000000000
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOMSF.glsl
+++ /dev/null
@@ -1,260 +0,0 @@
-/** 
- * @file sunLightSSAOF.glsl
- * $LicenseInfo:firstyear=2007&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2007, Linden Research, Inc.
- * 
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- * 
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- * 
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- * 
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
- * $/LicenseInfo$
- */
- 
-#extension GL_ARB_texture_rectangle : enable
-#extension GL_ARB_texture_multisample : enable
-
-#ifdef DEFINE_GL_FRAGCOLOR
-out vec4 gl_FragColor;
-#endif
-
-//class 2 -- shadows and SSAO
-
-uniform sampler2DMS depthMap;
-uniform sampler2DMS normalMap;
-uniform sampler2DRectShadow shadowMap0;
-uniform sampler2DRectShadow shadowMap1;
-uniform sampler2DRectShadow shadowMap2;
-uniform sampler2DRectShadow shadowMap3;
-uniform sampler2DShadow shadowMap4;
-uniform sampler2DShadow shadowMap5;
-uniform sampler2D noiseMap;
-
-// 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;
-
-uniform float spot_shadow_bias;
-uniform float spot_shadow_offset;
-
-vec4 getPosition(ivec2 pos_screen, int sample)
-{
-	float depth = texelFetch(depthMap, pos_screen, sample).r;
-	vec2 sc = vec2(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, int sample)
-{
-	float ret = 1.0;
-
-	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++)
-	{
-		ivec2 samppos_screen = ivec2(pos_screen + scale * reflect(kern[i], noise_reflect));
-		vec3 samppos_world = getPosition(samppos_screen, sample).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)
-			
-		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));
-	
-	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 += spot_shadow_bias*scl;
-	
-	float cs = shadow2D(shadowMap, stc.xyz);
-	float shadow = cs;
-
-	vec2 off = 1.5/proj_shadow_res;
-	
-	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(off.x, off.y, 0.0)), cs);
-	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(off.x, -off.y, 0.0)), cs);
-	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(-off.x, off.y, 0.0)), cs);
-	shadow += max(shadow2D(shadowMap, stc.xyz+vec3(-off.x, -off.y, 0.0)), cs);
-	
-			
-	return shadow/5.0;
-	
-	//return shadow;
-}
-
-void main() 
-{
-	vec2 pos_screen = vary_fragcoord.xy;
-	ivec2 itc = ivec2(pos_screen);
-	vec4 fcol = vec4(0,0,0,0);
-
-	for (int i = 0; i < samples; i++)
-	{
-		vec4 pos = getPosition(itc, i);
-	
-		vec4 nmap4 = texelFetch(normalMap, itc, i);
-		nmap4 = vec4((nmap4.xy-0.5)*2.0,nmap4.z,nmap4.w); // unpack norm
-		float displace = nmap4.w;
-		vec3 norm = nmap4.xyz;
-	
-		float shadow = 1.0;
-		float dp_directional_light = max(0.0, dot(norm, vary_light.xyz));
-
-		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)
-		{	
-			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);
-			
-			}
-		}
-		else
-		{
-			// more distant than the shadow map covers
-			shadow = 1.0;
-		}
-	
-		
-		fcol[0] += shadow;
-		fcol[1] += calcAmbientOcclusion(pos, norm, i);
-
-		spos.xyz = shadow_pos+offset*spot_shadow_offset;
-	
-		//spotlight shadow 1
-		vec4 lpos = shadow_matrix[4]*spos;
-		fcol[2] += pcfShadow(shadowMap4, lpos, 0.8); 
-	
-		//spotlight shadow 2
-		lpos = shadow_matrix[5]*spos;
-		fcol[3] += pcfShadow(shadowMap5, lpos, 0.8); 
-	}
-		
-	gl_FragColor = fcol / samples;
-}