Merge viewer-dev-materials

13 files changed, 711 insertions, 136 deletions

diff --git a/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl b/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl
index 713aae9187..17ac5a276d 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl
@@ -25,23 +25,19 @@
  
 #extension GL_ARB_texture_rectangle : enable
 
+#define INDEXED 1
+#define NON_INDEXED 2
+#define NON_INDEXED_NO_COLOR 3
+
 #ifdef DEFINE_GL_FRAGCOLOR
 out vec4 frag_color;
 #else
 #define frag_color gl_FragColor
 #endif
 
-uniform sampler2DRect depthMap;
-
-#ifndef INDEX_MODE
-#ifndef INDEX_MODE_USE_COLOR
+#if INDEX_MODE != INDEXED
 uniform sampler2D diffuseMap;
 #endif
-#endif
-
-#ifdef INDEX_MODE
-vec4 diffuseLookup(vec2 texcoord);
-#endif
 
 uniform vec2 screen_res;
 
@@ -54,34 +50,20 @@ VARYING vec3 vary_fragcoord;
 VARYING vec3 vary_position;
 VARYING vec3 vary_pointlight_col;
 VARYING vec2 vary_texcoord0;
-VARYING vec2 vary_texcoord1;
-VARYING vec2 vary_texcoord2;
 VARYING vec3 vary_norm;
-VARYING mat3 vary_rotation;
 
-#ifdef INDEX_MODE_USE_COLOR
+#if INDEX_MODE != NON_INDEXED_NO_COLOR
 VARYING vec4 vertex_color;
 #endif
 
-uniform mat4 inv_proj;
-
 uniform vec4 light_position[8];
 uniform vec3 light_direction[8];
 uniform vec3 light_attenuation[8]; 
 uniform vec3 light_diffuse[8];
 
-uniform sampler2D bumpMap;
-uniform samplerCube environmentMap;
-uniform mat3 env_mat;
-
-uniform vec4 specular_color;
-
-
-uniform float shadow_offset;
-
 vec3 calcDirectionalLight(vec3 n, vec3 l)
 {
-        float a = pow(max(dot(n,l),0.0), 0.7);
+	float a = max(dot(n,l),0.0);
 	return vec3(a,a,a);
 }
 
@@ -109,7 +91,7 @@ vec3 calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float
 		da *= spot*spot; // GL_SPOT_EXPONENT=2
 
 		//angular attenuation
-		da *= max(pow(dot(n, lv), 0.7), 0.0);		
+		da *= max(dot(n, lv), 0.0);		
 	}
 
 	return vec3(da,da,da);	
@@ -122,22 +104,19 @@ void main()
 	
 	vec4 pos = vec4(vary_position, 1.0);
 	
-#ifdef INDEX_MODE
+#if INDEX_MODE == INDEXED
 	vec4 diff= diffuseLookup(vary_texcoord0.xy);
 #else
 	vec4 diff = texture2D(diffuseMap,vary_texcoord0.xy);
 #endif
-
-#ifdef INDEX_MODE_USE_COLOR
-	float vertex_color_alpha = vertex_color.a;
-#else
+	diff.rgb = pow(diff.rgb, vec3(2.2));
+#if INDEX_MODE == NON_INDEXED_NO_COLOR
 	float vertex_color_alpha = 1.0;
+#else
+	float vertex_color_alpha = vertex_color.a;
 #endif
 	
-	vec3 normal = texture2D(bumpMap, vary_texcoord1.xy).xyz * 2 - 1;
-	normal = vec3(dot(normal.xyz, vary_rotation[0]),
-				dot(normal.xyz, vary_rotation[1]),
-				dot(normal.xyz, vary_rotation[2]));
+	vec3 normal = vary_norm; 
 
 	vec3 l = light_position[0].xyz;
 	vec3 dlight = calcDirectionalLight(normal, l);
diff --git a/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl b/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl
index 71e8e430e5..a4b4cd51e3 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl
@@ -34,30 +34,25 @@ uniform mat4 modelview_matrix;
 uniform mat4 modelview_projection_matrix;
 
 ATTRIBUTE vec3 position;
-#ifdef INDEX_MODE
+#if INDEX_MODE == INDEXED
 void passTextureIndex();
 #endif
 ATTRIBUTE vec3 normal;
+#if INDEX_MODE != NON_INDEXED_NO_COLOR
 ATTRIBUTE vec4 diffuse_color;
+#endif
 ATTRIBUTE vec2 texcoord0;
-ATTRIBUTE vec3 binormal;
-ATTRIBUTE vec2 texcoord1;
-ATTRIBUTE vec2 texcoord2;
 
-#ifdef HAS_SKIN
+#if HAS_SKIN
 mat4 getObjectSkinnedTransform();
-#else
-
-#ifdef IS_AVATAR_SKIN
+#elif IS_AVATAR_SKIN
 mat4 getSkinnedTransform();
 #endif
 
-#endif
-
 vec4 calcLighting(vec3 pos, vec3 norm, vec4 color, vec4 baseCol);
 void calcAtmospherics(vec3 inPositionEye);
 
-vec3 calcDirectionalLight(vec3 n, vec3 l);
+float calcDirectionalLight(vec3 n, vec3 l);
 
 vec3 atmosAmbient(vec3 light);
 vec3 atmosAffectDirectionalLight(float lightIntensity);
@@ -70,20 +65,15 @@ VARYING vec3 vary_fragcoord;
 VARYING vec3 vary_position;
 VARYING vec3 vary_pointlight_col;
 
-#ifdef INDEX_MODE_USE_COLOR
+#if INDEX_MODE != NON_INDEXED_NO_COLOR
 VARYING vec4 vertex_color;
 #endif
 
 VARYING vec2 vary_texcoord0;
-VARYING vec2 vary_texcoord1;
-VARYING vec2 vary_texcoord2;
 
 VARYING vec3 vary_norm;
-VARYING mat3 vary_rotation;
 
 uniform float near_clip;
-uniform float shadow_offset;
-uniform float shadow_bias;
 
 uniform vec4 light_position[8];
 uniform vec3 light_direction[8];
@@ -130,8 +120,9 @@ void main()
 {
 	vec4 pos;
 	vec3 norm;
+	
 	//transform vertex
-#ifdef HAS_SKIN
+#if HAS_SKIN
 	mat4 trans = getObjectSkinnedTransform();
 	trans = modelview_matrix * trans;
 	
@@ -141,8 +132,7 @@ void main()
 	norm = normalize((trans * vec4(norm, 1.0)).xyz - pos.xyz);
 	vec4 frag_pos = projection_matrix * pos;
 	gl_Position = frag_pos;
-#else
-#ifdef IS_AVATAR_SKIN
+#elif IS_AVATAR_SKIN
 	mat4 trans = getSkinnedTransform();
 	vec4 pos_in = vec4(position.xyz, 1.0);
 	pos.x = dot(trans[0], pos_in);
@@ -163,12 +153,8 @@ void main()
 	pos = (modelview_matrix * vert);
 	gl_Position = modelview_projection_matrix*vec4(position.xyz, 1.0);
 #endif
-#endif
-
-	vary_texcoord1 = (texture_matrix0 * vec4(texcoord1,0,1)).xy;
-	vary_texcoord2 = (texture_matrix0 * vec4(texcoord2,0,1)).xy;
-
-#ifdef INDEX_MODE
+	
+#if INDEX_MODE == INDEXED
 	passTextureIndex();
 	vary_texcoord0 = (texture_matrix0 * vec4(texcoord0,0,1)).xy;
 #else
@@ -176,19 +162,13 @@ void main()
 #endif
 	
 	vary_norm = norm;
-	float dp_directional_light = max(0.0, dot(norm, light_position[0].xyz));
-	vary_position = pos.xyz + light_position[0].xyz * (1.0-dp_directional_light)*shadow_offset;
-	
-	vec3 n = norm;
-	vec3 b = normalize(normal_matrix * binormal);
-	vec3 t = cross(b, n);
-
-	vary_rotation[0] = vec3(t.x, b.x, n.x);
-	vary_rotation[1] = vec3(t.y, b.y, n.y);
-	vary_rotation[2] = vec3(t.z, b.z, n.z);
+	vary_position = pos.xyz;
 
 	calcAtmospherics(pos.xyz);
 
+#if INDEX_MODE == NON_INDEXED_NO_COLOR
+	vec4 diffuse_color = vec4(1,1,1,1);
+#endif
 	//vec4 color = calcLighting(pos.xyz, norm, diffuse_color, vec4(0.));
 	vec4 col = vec4(0.0, 0.0, 0.0, diffuse_color.a);
 	
@@ -204,18 +184,17 @@ void main()
 	vary_directional.rgb = atmosAffectDirectionalLight(1.0f);
 	
 	col.rgb = col.rgb*diffuse_color.rgb;
-#ifdef INDEX_MODE_USE_COLOR
+#if INDEX_MODE != NON_INDEXED_NO_COLOR
 	vertex_color = col;
 #endif
 	
-#ifdef HAS_SKIN
+#if HAS_SKIN
 	vary_fragcoord.xyz = frag_pos.xyz + vec3(0,0,near_clip);
-#else
-#ifdef IS_AVATAR_SKIN
+#elif IS_AVATAR_SKIN
 	vary_fragcoord.xyz = pos.xyz + vec3(0,0,near_clip);
 #else
 	pos = modelview_projection_matrix * vert;
 	vary_fragcoord.xyz = pos.xyz + vec3(0,0,near_clip);
 #endif
-#endif
+	
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/emissiveF.glsl b/indra/newview/app_settings/shaders/class1/deferred/emissiveF.glsl
index 6aa4d7b4ed..ed02c4a481 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/emissiveF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/emissiveF.glsl
@@ -42,7 +42,7 @@ void main()
 	float shadow = 1.0;
 
 	vec4 color = diffuseLookup(vary_texcoord0.xy)*vertex_color;
-	
+	color.rgb = pow(color.rgb, vec3(2.2));
 	color.rgb = fullbrightAtmosTransport(color.rgb);
 
 	color.rgb = fullbrightScaleSoftClip(color.rgb);
diff --git a/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl
index 36433a5827..b91aaf80fb 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl
@@ -43,7 +43,7 @@ void main()
 	float shadow = 1.0;
 
 	vec4 color = diffuseLookup(vary_texcoord0.xy)*vertex_color;
-	
+	color.rgb = pow(color.rgb, vec3(2.2));
 	color.rgb = fullbrightAtmosTransport(color.rgb);
 
 	color.rgb = fullbrightScaleSoftClip(color.rgb);
diff --git a/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl b/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl
index 35b176b457..5e75cc3ce6 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl
@@ -29,11 +29,360 @@
 #define DIFFUSE_ALPHA_MODE_EMISSIVE 3
 
 
+#if DIFFUSE_ALPHA_MODE == DIFFUSE_ALPHA_MODE_BLEND
+#ifdef DEFINE_GL_FRAGCOLOR
+out vec4 frag_color;
+#else
+#define frag_color gl_FragColor
+#endif
+
+
+#if HAS_SUN_SHADOW
+
+uniform sampler2DShadow shadowMap0;
+uniform sampler2DShadow shadowMap1;
+uniform sampler2DShadow shadowMap2;
+uniform sampler2DShadow shadowMap3;
+
+uniform mat4 shadow_matrix[6];
+uniform vec4 shadow_clip;
+uniform vec2 shadow_res;
+uniform float shadow_bias;
+
+float pcfShadow(sampler2DShadow shadowMap, vec4 stc)
+{
+	stc.xyz /= stc.w;
+	stc.z += shadow_bias;
+		
+	stc.x = floor(stc.x*shadow_res.x + fract(stc.y*shadow_res.y*12345))/shadow_res.x; // add some chaotic jitter to X sample pos according to Y to disguise the snapping going on here
+	
+	float cs = shadow2D(shadowMap, stc.xyz).x;
+	float shadow = cs;
+	
+    shadow += shadow2D(shadowMap, stc.xyz+vec3(2.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x;
+    shadow += shadow2D(shadowMap, stc.xyz+vec3(1.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x;
+    shadow += shadow2D(shadowMap, stc.xyz+vec3(-1.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x;
+    shadow += shadow2D(shadowMap, stc.xyz+vec3(-2.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x;
+                       
+    return shadow*0.2;
+}
+
+#endif
+
+uniform samplerCube environmentMap;
+uniform sampler2D	  lightFunc;
+
+// 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 float haze_horizon;
+uniform float haze_density;
+uniform float cloud_shadow;
+uniform float density_multiplier;
+uniform float distance_multiplier;
+uniform float max_y;
+uniform vec4 glow;
+uniform float scene_light_strength;
+uniform mat3 env_mat;
+uniform mat3 ssao_effect_mat;
+
+uniform vec3 sun_dir;
+VARYING vec2 vary_fragcoord;
+
+VARYING vec3 vary_position;
+
+vec3 vary_PositionEye;
+
+vec3 vary_SunlitColor;
+vec3 vary_AmblitColor;
+vec3 vary_AdditiveColor;
+vec3 vary_AtmosAttenuation;
+
+uniform mat4 inv_proj;
+uniform vec2 screen_res;
+
+uniform vec4 light_position[8];
+uniform vec3 light_direction[8];
+uniform vec3 light_attenuation[8]; 
+uniform vec3 light_diffuse[8];
+
+vec3 calcDirectionalLight(vec3 n, vec3 l)
+{
+	float a = max(dot(n,l),0.0);
+	return vec3(a,a,a);
+}
+
+
+vec3 calcPointLightOrSpotLight(vec3 light_col, vec3 npos, vec3 diffuse, vec4 spec, vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float fa, float is_pointlight)
+{
+	//get light vector
+	vec3 lv = lp.xyz-v;
+	
+	//get distance
+	float d = dot(lv,lv);
+	
+	float da = 1.0;
+
+	vec3 col = vec3(0,0,0);
+
+	if (d > 0.0 && la > 0.0 && fa > 0.0)
+	{
+		//normalize light vector
+		lv = normalize(lv);
+	
+		//distance attenuation
+		float dist2 = d/la;
+		float dist_atten = clamp(1.0-(dist2-1.0*(1.0-fa))/fa, 0.0, 1.0);
+
+		// spotlight coefficient.
+		float spot = max(dot(-ln, lv), is_pointlight);
+		da *= spot*spot; // GL_SPOT_EXPONENT=2
+
+		//angular attenuation
+		da *= max(dot(n, lv), 0.0);		
+		
+		float lit = max(da * dist_atten, 0.0);
+
+		col = light_col*lit*diffuse;
+
+		if (spec.a > 0.0)
+		{
+			//vec3 ref = dot(pos+lv, norm);
+			vec3 h = normalize(lv+npos);
+			float nh = dot(n, h);
+			float nv = dot(n, npos);
+			float vh = dot(npos, h);
+			float sa = nh;
+			float fres = pow(1 - dot(h, npos), 5)*0.4+0.5;
+
+			float gtdenom = 2 * nh;
+			float gt = max(0, min(gtdenom * nv / vh, gtdenom * da / vh));
+								
+			if (nh > 0.0)
+			{
+				float scol = fres*texture2D(lightFunc, vec2(nh, spec.a)).r*gt/(nh*da);
+				col += lit*scol*light_col.rgb*spec.rgb;
+				//col += spec.rgb;
+			}
+		}
+	}
+
+	return max(col, vec3(0.0,0.0,0.0));	
+
+}
+
+vec3 decode_normal (vec2 enc)
+{
+    vec2 fenc = enc*4-2;
+    float f = dot(fenc,fenc);
+    float g = sqrt(1-f/4);
+    vec3 n;
+    n.xy = fenc*g;
+    n.z = 1-f/2;
+    return n;
+}
+
+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);
+	
+	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 + vec4(haze_density * 0.25)) * (density_multiplier * max_y);
+		//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);
+	blue_weight = blue_density / temp1;
+	haze_weight = vec4(haze_density) / 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;
+
+	// Transparency (-> temp1)
+	// ATI Bugfix -- can't store temp1*temp2.z*distance_multiplier in a variable because the ati
+	// compiler gets confused.
+	temp1 = exp(-temp1 * temp2.z * distance_multiplier);
+
+	//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 * 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) + tmpAmbient)
+	  + (haze_horizon * haze_weight) * (sunlight*(1.-cloud_shadow) * 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;
+}
+
+#else
 #ifdef DEFINE_GL_FRAGCOLOR
 out vec4 frag_data[3];
 #else
 #define frag_data gl_FragData
 #endif
+#endif
 
 uniform sampler2D diffuseMap;
 
@@ -74,16 +423,20 @@ vec2 encode_normal(vec3 n)
 
 void main() 
 {
-	vec4 col = texture2D(diffuseMap, vary_texcoord0.xy);
-	col.rgb *= vertex_color.rgb;
+	vec4 diffcol = texture2D(diffuseMap, vary_texcoord0.xy);
+	diffcol.rgb *= vertex_color.rgb;
 
 #if DIFFUSE_ALPHA_MODE == DIFFUSE_ALPHA_MODE_MASK
-	if (col.a < minimum_alpha)
+	if (diffcol.a < minimum_alpha)
 	{
 		discard;
 	}
 #endif
 
+#if DIFFUSE_ALPHA_MODE == DIFFUSE_ALPHA_MODE_BLEND
+	diffcol.rgb = pow(diffcol.rgb, vec3(2.2));
+#endif
+
 #if HAS_SPECULAR_MAP
 	vec4 spec = texture2D(specularMap, vary_texcoord2.xy);
 #else
@@ -103,7 +456,7 @@ void main()
 	vec3 tnorm = vary_normal;
 #endif
 
-	vec4 final_color = col;
+	vec4 final_color = diffcol;
 	
 #if DIFFUSE_ALPHA_MODE != DIFFUSE_ALPHA_MODE_EMISSIVE
 	final_color.a = 0;
@@ -121,7 +474,191 @@ void main()
 	final_specular.a = specular_color.a;
 #endif
 	
+
+#if DIFFUSE_ALPHA_MODE == DIFFUSE_ALPHA_MODE_BLEND
+	{
+		//forward rendering, output just lit RGBA
+	vec3 pos = vary_position;
+
+#if HAS_SUN_SHADOW
+	float shadow = 0.0;
+	
+	vec4 spos = vec4(pos,1.0);
+		
+	if (spos.z > -shadow_clip.w)
+	{	
+		vec4 lpos;
+		
+		vec4 near_split = shadow_clip*-0.75;
+		vec4 far_split = shadow_clip*-1.25;
+		vec4 transition_domain = near_split-far_split;
+		float weight = 0.0;
+
+		if (spos.z < near_split.z)
+		{
+			lpos = shadow_matrix[3]*spos;
+			
+			float w = 1.0;
+			w -= max(spos.z-far_split.z, 0.0)/transition_domain.z;
+			shadow += pcfShadow(shadowMap3, lpos)*w;
+			weight += w;
+			shadow += max((pos.z+shadow_clip.z)/(shadow_clip.z-shadow_clip.w)*2.0-1.0, 0.0);
+		}
+
+		if (spos.z < near_split.y && spos.z > far_split.z)
+		{
+			lpos = shadow_matrix[2]*spos;
+			
+			float w = 1.0;
+			w -= max(spos.z-far_split.y, 0.0)/transition_domain.y;
+			w -= max(near_split.z-spos.z, 0.0)/transition_domain.z;
+			shadow += pcfShadow(shadowMap2, lpos)*w;
+			weight += w;
+		}
+
+		if (spos.z < near_split.x && spos.z > far_split.y)
+		{
+			lpos = shadow_matrix[1]*spos;
+			
+			float w = 1.0;
+			w -= max(spos.z-far_split.x, 0.0)/transition_domain.x;
+			w -= max(near_split.y-spos.z, 0.0)/transition_domain.y;
+			shadow += pcfShadow(shadowMap1, lpos)*w;
+			weight += w;
+		}
+
+		if (spos.z > far_split.x)
+		{
+			lpos = shadow_matrix[0]*spos;
+							
+			float w = 1.0;
+			w -= max(near_split.x-spos.z, 0.0)/transition_domain.x;
+				
+			shadow += pcfShadow(shadowMap0, lpos)*w;
+			weight += w;
+		}
+		
+
+		shadow /= weight;
+	}
+	else
+	{
+		shadow = 1.0;
+	}
+#else
+	float shadow = 1.0;
+#endif
+
+		vec4 diffuse = final_color;
+		vec3 norm = normalize(tnorm);
+		vec4 spec = final_specular;
+		float envIntensity = final_normal.z;
+
+		vec3 col;
+		float bloom = 0.0;
+		{
+			calcAtmospherics(pos.xyz, 1.0);
+	
+			float da = max(dot(norm.xyz, sun_dir.xyz), 0.0);
+
+			da = pow(da, 0.7);
+
+			col = atmosAmbient(vec3(0));
+			col += atmosAffectDirectionalLight(max(min(da, shadow), diffuse.a));
+	
+			col *= diffuse.rgb;
+	
+			vec3 refnormpersp = normalize(reflect(pos.xyz, norm.xyz));
+
+			if (spec.a > 0.0) // specular reflection
+			{
+				// the old infinite-sky shiny reflection
+				//
+				
+				float sa = dot(refnormpersp, sun_dir.xyz);
+				vec3 dumbshiny = vary_SunlitColor*shadow*(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) / 6;
+				col += spec_contrib;
+			}
+
+			if (envIntensity > 0.0)
+			{
+				//add environmentmap
+				vec3 env_vec = env_mat * refnormpersp;
+				col = mix(col.rgb, textureCube(environmentMap, env_vec).rgb, 
+					max(envIntensity-diffuse.a*2.0, 0.0));
+			}
+	
+			col = atmosLighting(col);
+			col = scaleSoftClip(col);
+
+			//col = mix(col.rgb, diffuse.rgb, diffuse.a);
+		}
+	
+		vec3 light_col = vec3(0,0,0);
+
+		vec3 npos = normalize(-pos.xyz);
+
+		
+		/*vec3 calcPointLightOrSpotLight(
+			vec3 light_col, 
+			vec3 npos, 
+			vec3 diffuse, 
+			vec4 spec, 
+			vec3 v, 
+			vec3 n, 
+			vec4 lp, 
+			vec3 ln, 
+			float la, 
+			float fa, 
+			float is_pointlight)
+
+		*/
+
+	/*
+#ifdef MAC_GEFORCE_HACK
+ #define LIGHT_LOOP(i) \
+		light_col += calcPointLightOrSpotLight(light_diffuse[i].rgb, npos, diffuse.rgb, final_specular, pos.xyz, norm, light_position[i], light_direction[i], light_attenuation[i].x, light_attenuation[i].y, light_attenuation[i].z);
+
+		LIGHT_LOOP(1)
+		LIGHT_LOOP(2)
+		LIGHT_LOOP(3)
+		LIGHT_LOOP(4)
+		LIGHT_LOOP(5)
+		LIGHT_LOOP(6)
+		LIGHT_LOOP(7)
+#else*/
+	for (int i = 2; i < 8; i++)
+	{
+		light_col += calcPointLightOrSpotLight(
+			light_diffuse[i].rgb, 
+			npos, 
+			diffuse.rgb, 
+			final_specular, 
+			pos.xyz, 
+			norm, 
+			light_position[i], 
+			light_direction[i], 
+			light_attenuation[i].x, 
+			light_attenuation[i].y, 
+			light_attenuation[i].z);
+	}
+//#endif
+
+		col += light_col;
+		frag_color.rgb = col;
+		
+	}
+
+
+	frag_color.a = diffcol.a*vertex_color.a;
+
+#else
 	frag_data[0] = final_color;
 	frag_data[1] = final_specular; // XYZ = Specular color. W = Specular exponent.
 	frag_data[2] = final_normal; // XY = Normal.  Z = Env. intensity.
+#endif
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/materialV.glsl b/indra/newview/app_settings/shaders/class1/deferred/materialV.glsl
index 88095a81e8..f578795abe 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/materialV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/materialV.glsl
@@ -23,7 +23,12 @@
  * $/LicenseInfo$
  */
 
-#ifdef HAS_SKIN
+#define DIFFUSE_ALPHA_MODE_IGNORE 0
+#define DIFFUSE_ALPHA_MODE_BLEND 1
+#define DIFFUSE_ALPHA_MODE_MASK 2
+#define DIFFUSE_ALPHA_MODE_EMISSIVE 3
+
+#if HAS_SKIN
 uniform mat4 modelview_matrix;
 uniform mat4 projection_matrix;
 mat4 getObjectSkinnedTransform();
@@ -32,8 +37,16 @@ uniform mat3 normal_matrix;
 uniform mat4 modelview_projection_matrix;
 #endif
 
-uniform mat4 texture_matrix0;
+#if DIFFUSE_ALPHA_MODE == DIFFUSE_ALPHA_MODE_BLEND
+#if !HAS_SKIN
+uniform mat4 modelview_matrix;
+#endif
+
+VARYING vec3 vary_position;
 
+#endif
+
+uniform mat4 texture_matrix0;
 
 ATTRIBUTE vec3 position;
 ATTRIBUTE vec4 diffuse_color;
@@ -64,13 +77,17 @@ VARYING vec2 vary_texcoord0;
 
 void main()
 {
-#ifdef HAS_SKIN
+#if HAS_SKIN
 	mat4 mat = getObjectSkinnedTransform();
 
 	mat = modelview_matrix * mat;
 
 	vec3 pos = (mat*vec4(position.xyz,1.0)).xyz;
 
+#if DIFFUSE_ALPHA_MODE == DIFFUSE_ALPHA_MODE_BLEND
+	vary_position = pos;
+#endif
+
 	gl_Position = projection_matrix*vec4(pos,1.0);
 
 #else
@@ -89,7 +106,7 @@ void main()
 	vary_texcoord2 = (texture_matrix0 * vec4(texcoord2,0,1)).xy;
 #endif
 
-#ifdef HAS_SKIN
+#if HAS_SKIN
 	vec3 n = normalize((mat*vec4(normal.xyz+position.xyz,1.0)).xyz-pos.xyz);
 #if HAS_NORMAL_MAP
 	vec3 b = normalize((mat*vec4(binormal.xyz+position.xyz,1.0)).xyz-pos.xyz);
@@ -98,11 +115,10 @@ void main()
 	vary_mat0 = vec3(t.x, b.x, n.x);
 	vary_mat1 = vec3(t.y, b.y, n.y);
 	vary_mat2 = vec3(t.z, b.z, n.z);
-#else
-	vary_normal  = n;
-#endif
-
-#else
+#else //HAS_NORMAL_MAP
+vary_normal  = n;
+#endif //HAS_NORMAL_MAP
+#else //HAS_SKIN
 	vec3 n = normalize(normal_matrix * normal);
 #if HAS_NORMAL_MAP
 	vec3 b = normalize(normal_matrix * binormal);
@@ -111,11 +127,16 @@ void main()
 	vary_mat0 = vec3(t.x, b.x, n.x);
 	vary_mat1 = vec3(t.y, b.y, n.y);
 	vary_mat2 = vec3(t.z, b.z, n.z);
-#else
+#else //HAS_NORMAL_MAP
 	vary_normal = n;
-#endif
-
-#endif
+#endif //HAS_NORMAL_MAP
+#endif //HAS_SKIN
 	
 	vertex_color = diffuse_color;
+
+#if DIFFUSE_ALPHA_MODE == DIFFUSE_ALPHA_MODE_BLEND
+#if !HAS_SKIN
+	vary_position = (modelview_matrix*vec4(position.xyz, 1.0)).xyz;
+#endif
+#endif
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/multiPointLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/multiPointLightF.glsl
index 3bd433c283..db42a54e42 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/multiPointLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/multiPointLightF.glsl
@@ -125,11 +125,11 @@ void main()
 			float fa = light_col[i].a+1.0;
 			float dist_atten = clamp(1.0-(dist2-1.0*(1.0-fa))/fa, 0.0, 1.0);
 			
-			dist_atten *= noise;
+			dist_atten = pow(dist_atten, 2.2) * 2.2;
 
-			float lit = pow(da, 0.7) * dist_atten;
+			dist_atten *= noise;
 
-			
+			float lit = da * dist_atten;
 						
 			vec3 col = light_col[i].rgb*lit*diff;
 			
diff --git a/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl
index 959a85330e..50938d3ef9 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl
@@ -154,6 +154,8 @@ void main()
 	}
 		
 	vec3 norm = texture2DRect(normalMap, frag.xy).xyz;
+	float envIntensity = norm.z;
+
 	norm = decode_normal(norm.xy);
 	
 	norm = normalize(norm);
@@ -169,6 +171,7 @@ void main()
 	
 	float fa = falloff+1.0;
 	float dist_atten = min(1.0-(dist2-1.0*(1.0-fa))/fa, 1.0);
+	dist_atten = pow(dist_atten, 2.2) * 2.2;
 	if (dist_atten <= 0.0)
 	{
 		discard;
@@ -201,7 +204,7 @@ void main()
 		
 			vec3 lcol = color.rgb * plcol.rgb * plcol.a;
 			
-			lit = pow(da, 0.7) * dist_atten * noise;
+			lit = da * dist_atten * noise;
 			
 			col = lcol*lit*diff_tex;
 			amb_da += (da*0.5)*proj_ambiance;
@@ -221,8 +224,33 @@ void main()
 	
 	
 	vec4 spec = texture2DRect(specularRect, frag.xy);
+	
 	if (spec.a > 0.0)
 	{
+		float lit = da * dist_atten * noise;
+		vec3 npos = -normalize(pos);
+
+		//vec3 ref = dot(pos+lv, norm);
+		vec3 h = normalize(lv+npos);
+		float nh = dot(norm, h);
+		float nv = dot(norm, npos);
+		float vh = dot(npos, h);
+		float sa = nh;
+		float fres = pow(1 - dot(h, npos), 5)*0.4+0.5;
+
+		float gtdenom = 2 * nh;
+		float gt = max(0, min(gtdenom * nv / vh, gtdenom * da / vh));
+								
+		if (nh > 0.0)
+		{
+			float scol = fres*texture2D(lightFunc, vec2(nh, spec.a)).r*gt/(nh*da);
+			col += lit*scol*color.rgb*spec.rgb;
+			//col += spec.rgb;
+		}
+	}	
+
+	if (envIntensity > 0.0)
+	{
 		vec3 ref = reflect(normalize(pos), norm);
 		
 		//project from point pos in direction ref to plane proj_p, proj_n
@@ -239,8 +267,9 @@ void main()
 			{
 				stc.xy /= stc.w;
 
-				float fatten = clamp(spec.a*spec.a+spec.a*0.5, 0.25, 1.0);
+				float fatten = clamp(envIntensity*envIntensity+envIntensity*0.5, 0.25, 1.0);
 				
+				//stc.xy = (stc.xy - vec2(0.5)) * fatten + vec2(0.5);
 				stc.xy = (stc.xy - vec2(0.5)) * fatten + vec2(0.5);
 								
 				if (stc.x < 1.0 &&
@@ -248,28 +277,7 @@ void main()
 					stc.x > 0.0 &&
 					stc.y > 0.0)
 				{
-
-					vec3 npos = -normalize(pos);
-					lv = pfinal-pos.xyz;
-					lv = normalize(lv);
-
-					vec3 h = normalize(lv+npos);
-					float nh = dot(norm, h);
-					float nv = dot(norm, npos);
-					float vh = dot(npos, h);
-					float sa = nh;
-					float fres = pow(1 - dot(h, npos), 5)*0.4+0.5;
-					float gtdenom = 2 * nh;
-					float gt = max(0,(min(gtdenom * nv / vh, gtdenom * da / vh)));
-
-					if (sa > 0.0)
-					{
-						float scol = fres * texture2D(lightFunc, vec2(nh, spec.a)).r * gt / (nh * da);
-						col += scol*color.rgb*texture2DLodSpecular(projectionMap, stc.xy, proj_lod-spec.a*proj_lod).rgb*spec.rgb;
-					}
-					
-					//vec4 scol = texture2DLodSpecular(projectionMap, stc.xy, proj_lod-spec.a*proj_lod);
-					//col += dist_atten*scol.rgb*color.rgb*scol.a*spec.rgb;
+					col += color.rgb*texture2DLodSpecular(projectionMap, stc.xy, proj_lod-envIntensity*proj_lod).rgb*spec.rgb;										
 				}
 			}
 		}
diff --git a/indra/newview/app_settings/shaders/class1/deferred/pointLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/pointLightF.glsl
index 6976fc7bd9..36406cbf57 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/pointLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/pointLightF.glsl
@@ -111,8 +111,9 @@ void main()
 	vec3 col = texture2DRect(diffuseRect, frag.xy).rgb;
 	float fa = falloff+1.0;
 	float dist_atten = clamp(1.0-(dist2-1.0*(1.0-fa))/fa, 0.0, 1.0);
-	float lit = pow(da, 0.7) * dist_atten * noise;
-	
+	dist_atten = pow(dist_atten, 2.2) * 2.2;
+	float lit = da * dist_atten * noise;
+
 	col = color.rgb*lit*col;
 
 	vec4 spec = texture2DRect(specularRect, frag.xy);
diff --git a/indra/newview/app_settings/shaders/class1/deferred/postDeferredGammaCorrect.glsl b/indra/newview/app_settings/shaders/class1/deferred/postDeferredGammaCorrect.glsl
new file mode 100644
index 0000000000..2d6bce02c9
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/deferred/postDeferredGammaCorrect.glsl
@@ -0,0 +1,46 @@
+/** 
+ * @file postDeferredGammaCorrect.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
+
+#ifdef DEFINE_GL_FRAGCOLOR
+out vec4 frag_color;
+#else
+#define frag_color gl_FragColor
+#endif
+
+uniform sampler2DRect diffuseRect;
+
+uniform vec2 screen_res;
+VARYING vec2 vary_fragcoord;
+
+uniform float texture_gamma;
+
+void main() 
+{
+	vec4 diff = texture2DRect(diffuseRect, vary_fragcoord);
+	frag_color = pow(diff, vec4(texture_gamma, texture_gamma, texture_gamma, 1.0));
+}
+
diff --git a/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl
index 4b4cb5c8ce..aafa932b8f 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl
@@ -60,6 +60,7 @@ uniform float density_multiplier;
 uniform float distance_multiplier;
 uniform float max_y;
 uniform vec4 glow;
+uniform float global_gamma;
 uniform float scene_light_strength;
 uniform mat3 env_mat;
 uniform mat3 ssao_effect_mat;
@@ -230,9 +231,9 @@ void calcAtmospherics(vec3 inPositionEye, float ambFactor) {
 		  + tmpAmbient)));
 
 	//brightness of surface both sunlight and ambient
-	setSunlitColor(vec3(sunlight * .5));
-	setAmblitColor(vec3(tmpAmbient * .25));
-	setAdditiveColor(getAdditiveColor() * vec3(1.0 - temp1));
+	setSunlitColor(pow(vec3(sunlight * .5), vec3(global_gamma)) * 3.3);
+	setAmblitColor(pow(vec3(tmpAmbient * .25), vec3(global_gamma)) * 3.3);
+	setAdditiveColor(pow(getAdditiveColor() * vec3(1.0 - temp1), vec3(global_gamma)) * 3.3);
 }
 
 vec3 atmosLighting(vec3 light)
@@ -291,12 +292,9 @@ void main()
 	norm.xyz = decode_normal(norm.xy); // unpack norm
 		
 	float da = max(dot(norm.xyz, sun_dir.xyz), 0.0);
-	
-	da = pow(da, 0.7);
 
 	vec4 diffuse = texture2DRect(diffuseRect, tc);
 	vec4 spec = texture2DRect(specularRect, vary_fragcoord.xy);
-	
 	vec3 col;
 	float bloom = 0.0;
 	if (diffuse.a < 0.9)
@@ -327,7 +325,7 @@ void main()
 		if (envIntensity > 0.0)
 		{ //add environmentmap
 			vec3 env_vec = env_mat * refnormpersp;
-			col = mix(col.rgb, textureCube(environmentMap, env_vec).rgb, 
+			col = mix(col.rgb, pow(textureCube(environmentMap, env_vec).rgb, vec3(2.2)) * 2.2, 
 				max(envIntensity-diffuse.a*2.0, 0.0)); 
 		}
 
@@ -343,5 +341,6 @@ void main()
 
 	frag_color.rgb = col;
 
-	frag_color.a = bloom;
+	//frag_color.a = bloom;
+	frag_color.a = 0.0;
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/softenLightV.glsl b/indra/newview/app_settings/shaders/class1/deferred/softenLightV.glsl
index c6031fc45a..b59fcbe017 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/softenLightV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/softenLightV.glsl
@@ -35,6 +35,6 @@ void main()
 	//transform vertex
 	vec4 pos = modelview_projection_matrix * vec4(position.xyz, 1.0);
 	gl_Position = pos; 
-		
+	
 	vary_fragcoord = (pos.xy*0.5+0.5)*screen_res;
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl
index 918cdce040..56c10e25cc 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl
@@ -84,6 +84,7 @@ vec3 decode_normal (vec2 enc)
 vec4 texture2DLodSpecular(sampler2D projectionMap, vec2 tc, float lod)
 {
 	vec4 ret = texture2DLod(projectionMap, tc, lod);
+	ret.rgb = pow(ret.rgb, vec3(2.2));
 	
 	vec2 dist = tc-vec2(0.5);
 	
@@ -99,7 +100,8 @@ vec4 texture2DLodSpecular(sampler2D projectionMap, vec2 tc, float lod)
 vec4 texture2DLodDiffuse(sampler2D projectionMap, vec2 tc, float lod)
 {
 	vec4 ret = texture2DLod(projectionMap, tc, lod);
-	
+	ret.rgb = pow(ret.rgb, vec3(2.2));
+
 	vec2 dist = vec2(0.5) - abs(tc-vec2(0.5));
 	
 	float det = min(lod/(proj_lod*0.5), 1.0);
@@ -116,7 +118,8 @@ vec4 texture2DLodDiffuse(sampler2D projectionMap, vec2 tc, float lod)
 vec4 texture2DLodAmbient(sampler2D projectionMap, vec2 tc, float lod)
 {
 	vec4 ret = texture2DLod(projectionMap, tc, lod);
-	
+	ret.rgb = pow(ret.rgb, vec3(2.2));
+
 	vec2 dist = tc-vec2(0.5);
 	
 	float d = dot(dist,dist);
@@ -172,6 +175,7 @@ void main()
 	
 	float fa = falloff+1.0;
 	float dist_atten = min(1.0-(dist2-1.0*(1.0-fa))/fa, 1.0);
+	dist_atten = pow(dist_atten, 2.2) * 2.2;
 	if (dist_atten <= 0.0)
 	{
 		discard;
@@ -204,7 +208,7 @@ void main()
 		
 			vec3 lcol = color.rgb * plcol.rgb * plcol.a;
 			
-			lit = pow(da, 0.7) * dist_atten * noise;
+			lit = da * dist_atten * noise;
 
 			col = lcol*lit*diff_tex;
 			amb_da += (da*0.5)*proj_ambiance;
@@ -224,6 +228,7 @@ void main()
 	
 	
 	vec4 spec = texture2DRect(specularRect, frag.xy);
+
 	if (spec.a > 0.0)
 	{
 		vec3 ref = reflect(normalize(pos), norm);