NORSPEC-139 Fix for non-fullscreen spotlight lighting mismatching fullscreen spotlight lighting

1 files changed, 47 insertions, 40 deletions

diff --git a/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl
index 56c10e25cc..8d2a4f2dd6 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl
@@ -22,18 +22,15 @@
  * 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
 
-//class 1 -- no shadows
-
-#extension GL_ARB_texture_rectangle : enable
-
 uniform sampler2DRect diffuseRect;
 uniform sampler2DRect specularRect;
 uniform sampler2DRect depthMap;
@@ -43,7 +40,6 @@ uniform sampler2D noiseMap;
 uniform sampler2D projectionMap;
 uniform sampler2D lightFunc;
 
-
 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)
@@ -59,13 +55,12 @@ uniform float far_clip;
 uniform vec3 proj_origin; //origin of projection to be used for angular attenuation
 uniform float sun_wash;
 
+uniform float size;
 uniform vec3 color;
 uniform float falloff;
-uniform float size;
 
-VARYING vec4 vary_fragcoord;
 VARYING vec3 trans_center;
-
+VARYING vec4 vary_fragcoord;
 uniform vec2 screen_res;
 
 uniform mat4 inv_proj;
@@ -84,7 +79,6 @@ 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);
 	
@@ -100,8 +94,7 @@ 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);
@@ -118,8 +111,7 @@ 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);
@@ -158,8 +150,10 @@ void main()
 	{
 		discard;
 	}
+	
 		
 	vec3 norm = texture2DRect(normalMap, frag.xy).xyz;
+	float envIntensity = norm.z;
 	norm = decode_normal(norm.xy);
 	
 	norm = normalize(norm);
@@ -189,6 +183,10 @@ void main()
 		
 	vec3 diff_tex = texture2DRect(diffuseRect, frag.xy).rgb;
 		
+	vec4 spec = texture2DRect(specularRect, frag.xy);
+
+	
+
 	float noise = texture2D(noiseMap, frag.xy/128.0).b;
 	if (proj_tc.z > 0.0 &&
 		proj_tc.x < 1.0 &&
@@ -196,11 +194,13 @@ void main()
 		proj_tc.x > 0.0 &&
 		proj_tc.y > 0.0)
 	{
-		float lit = 0.0;
 		float amb_da = proj_ambiance;
+		float lit = 0.0;
 		
 		if (da > 0.0)
 		{
+			lit = da * dist_atten * noise;
+
 			float diff = clamp((l_dist-proj_focus)/proj_range, 0.0, 1.0);
 			float lod = diff * proj_lod;
 			
@@ -208,10 +208,8 @@ void main()
 		
 			vec3 lcol = color.rgb * plcol.rgb * plcol.a;
 			
-			lit = da * dist_atten * noise;
-
 			col = lcol*lit*diff_tex;
-			amb_da += (da*0.5)*proj_ambiance;
+			//amb_da += (da*0.5)*(1.0-shadow)*proj_ambiance;
 		}
 		
 		//float diff = clamp((proj_range-proj_focus)/proj_range, 0.0, 1.0);
@@ -226,11 +224,37 @@ void main()
 		col += amb_da*color.rgb*diff_tex.rgb*amb_plcol.rgb*amb_plcol.a;
 	}
 	
-	
-	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
@@ -247,8 +271,9 @@ 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 &&
@@ -256,25 +281,7 @@ 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 (nh > 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;
-					}
+					col += color.rgb*texture2DLodSpecular(projectionMap, stc.xy, proj_lod-envIntensity*proj_lod).rgb*spec.rgb;										
 				}
 			}
 		}