#149 Implement depth from Deferred (try improve SSR)

skylicht-lab · Jun 3, 2022 · 859696d · 859696d
1 parent 5fdcb36
commit 859696d
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Showing 30 changed files with 74 additions and 42 deletions.
diff --git a/Assets/BuiltIn/Shader/SSR/GLSL/LibSSR.glsl b/Assets/BuiltIn/Shader/SSR/GLSL/LibSSR.glsl
@@ -54,7 +54,7 @@ vec3 SSR(const vec3 baseColor, const vec3 position, const vec3 reflection, const
 	z = clamp(z, 0.0, 1.0);
 
 	// convert 3d position to 2d texture coord
-	vec3 color = textureLod(uTexLastFrame, projectedCoord.xy, mipLevel).rgb;
+	vec3 color = textureLod(uTexLastFrame, projectedCoord.xy, 0).rgb;
 
 	// edge factor
 	vec2 dCoords = smoothstep(vec2(0.0, 0.0), vec2(0.5, 0.5), abs(vec2(0.5, 0.5) - projectedCoord.xy));

diff --git a/Assets/BuiltIn/Shader/SSR/HLSL/LibSSR.hlsl b/Assets/BuiltIn/Shader/SSR/HLSL/LibSSR.hlsl
@@ -54,7 +54,7 @@ float3 SSR(const float3 baseColor, const float3 position, const float3 reflectio
 	z = clamp(z, 0.0, 1.0);
 
 	// convert 3d position to 2d texture coord	
-	float3 color = uTexLastFrame.SampleLevel(uTexLastFrameSampler, projectedCoord.xy, mipLevel).rgb;
+	float3 color = uTexLastFrame.SampleLevel(uTexLastFrameSampler, projectedCoord.xy, 0).rgb;
 
 	// edge factor
 	float2 dCoords = smoothstep(float2(0.0, 0.0), float2(0.5, 0.5), abs(float2(0.5, 0.5) - projectedCoord.xy));

diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/Color.xml b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/Color.xml
@@ -3,6 +3,7 @@
 		<vs>
 			<uniform name="uMvpMatrix" type="WORLD_VIEW_PROJECTION" value="0" float="16" matrix="true"/>
 			<uniform name="uWorldMatrix" type="WORLD" value="0" float="16" matrix="true"/>
+			<uniform name="uView" type="DEFERRED_VIEW" value="0" float="16" matrix="true"/>
 			<uniform name="uUVScale" type="MATERIAL_PARAM" valueIndex="0" value="1.0,1.0,0.0,0.0" float="4"/>
 		</vs>
 		<fs>

diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/Diffuse.xml b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/Diffuse.xml
@@ -3,6 +3,7 @@
 		<vs>
 			<uniform name="uMvpMatrix" type="WORLD_VIEW_PROJECTION" value="0" float="16" matrix="true"/>
 			<uniform name="uWorldMatrix" type="WORLD" value="0" float="16" matrix="true"/>
+			<uniform name="uView" type="DEFERRED_VIEW" value="0" float="16" matrix="true"/>
 			<uniform name="uUVScale" type="MATERIAL_PARAM" valueIndex="0" value="1.0,1.0,0.0,0.0" float="4"/>
 		</vs>
 		<fs>

diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/DiffuseNormal.xml b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/DiffuseNormal.xml
@@ -3,6 +3,7 @@
 		<vs>
 			<uniform name="uMvpMatrix" type="WORLD_VIEW_PROJECTION" value="0" float="16" matrix="true"/>
 			<uniform name="uWorldMatrix" type="WORLD" value="0" float="16" matrix="true"/>
+			<uniform name="uView" type="DEFERRED_VIEW" value="0" float="16" matrix="true"/>
 			<uniform name="uUVScale" type="MATERIAL_PARAM" valueIndex="0" value="1.0,1.0,0.0,0.0" float="4"/>
 		</vs>
 		<fs>

diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/GLSL/ColorFS.glsl b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/GLSL/ColorFS.glsl
@@ -5,7 +5,7 @@ uniform float uSpec;
 uniform float uGloss;
 
 in vec2 vTexCoord0;
-in vec3 vWorldPosition;
+in vec4 vWorldPosition;
 in vec3 vWorldNormal;
 in float vTangentW;
 
@@ -17,7 +17,7 @@ layout(location = 3) out vec4 SG;
 void main(void)
 {
 	Diffuse = uColor;
-	Position = vec4(vWorldPosition, 1.0);
+	Position = vWorldPosition;
 	Normal = vec4(vWorldNormal, 1.0);
 	SG = vec4(uSpec, uGloss, 1.0, 1.0);
 }
diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/GLSL/DiffuseFS.glsl b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/GLSL/DiffuseFS.glsl
@@ -6,7 +6,7 @@ uniform float uSpec;
 uniform float uGloss;
 
 in vec2 vTexCoord0;
-in vec3 vWorldPosition;
+in vec4 vWorldPosition;
 in vec3 vWorldNormal;
 in float vTangentW;
 
@@ -20,7 +20,7 @@ void main(void)
 	vec3 baseMap = texture(uTexDiffuse, vTexCoord0.xy).xyz;
 
 	Diffuse = vec4(baseMap, 1.0);
-	Position = vec4(vWorldPosition, 1.0);
+	Position = vWorldPosition;
 	Normal = vec4(vWorldNormal, 1.0);
 	SG = vec4(uSpec, uGloss, 1.0, 1.0);
 }
diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/GLSL/DiffuseNormalFS.glsl b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/GLSL/DiffuseNormalFS.glsl
@@ -7,7 +7,7 @@ uniform float uSpec;
 uniform float uGloss;
 
 in vec2 vTexCoord0;
-in vec3 vWorldPosition;
+in vec4 vWorldPosition;
 in vec3 vWorldNormal;
 in vec3 vWorldTangent;
 in vec3 vWorldBinormal;
@@ -30,7 +30,7 @@ void main(void)
 	n = normalize(n);
 
 	Diffuse = vec4(baseMap, 1.0);
-	Position = vec4(vWorldPosition, 1.0);
+	Position = vWorldPosition;
 	Normal = vec4(n, 1.0);
 	SG = vec4(uSpec, uGloss, 1.0, 1.0);
 }
diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/GLSL/DiffuseSpecularGlossinessVS.glsl b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/GLSL/DiffuseSpecularGlossinessVS.glsl
@@ -5,16 +5,20 @@ in vec2 inTexCoord0;
 
 uniform mat4 uMvpMatrix;
 uniform mat4 uWorldMatrix;
+uniform mat4 uView;
 uniform vec4 uUVScale;
 
 out vec3 vWorldNormal;
-out vec3 vWorldPosition;
+out vec4 vWorldPosition;
 
 out vec2 vTexCoord0;
 
 void main(void)
 {
-	vWorldPosition = (uWorldMatrix*inPosition).xyz;
+	vWorldPosition = uWorldMatrix*inPosition;
+
+	vec4 sampleFragPos = uView * vWorldPosition;
+	vWorldPosition.w = sampleFragPos.z;
 
 	vec4 worldNormal = uWorldMatrix * vec4(inNormal, 0.0);
 	vWorldNormal = normalize(worldNormal.xyz);

diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/GLSL/SpecularFS.glsl b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/GLSL/SpecularFS.glsl
@@ -7,7 +7,7 @@ uniform sampler2D uTexSpec;
 uniform float uGloss;
 
 in vec2 vTexCoord0;
-in vec3 vWorldPosition;
+in vec4 vWorldPosition;
 in vec3 vWorldNormal;
 in vec3 vWorldTangent;
 in vec3 vWorldBinormal;
@@ -31,7 +31,7 @@ void main(void)
 	n = normalize(n);
 
 	Diffuse = vec4(baseMap, 1.0);
-	Position = vec4(vWorldPosition, 1.0);
+	Position = vWorldPosition;
 	Normal = vec4(n, 1.0);
 	SG = vec4(specMap.r, uGloss, 1.0, 1.0);
 }
diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/GLSL/SpecularGlossinessFS.glsl b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/GLSL/SpecularGlossinessFS.glsl
@@ -5,7 +5,7 @@ uniform sampler2D uTexNormal;
 uniform sampler2D uTexSpecGloss;
 
 in vec2 vTexCoord0;
-in vec3 vWorldPosition;
+in vec4 vWorldPosition;
 in vec3 vWorldNormal;
 in vec3 vWorldTangent;
 in vec3 vWorldBinormal;
@@ -29,7 +29,7 @@ void main(void)
 	n = normalize(n);
 
 	Diffuse = vec4(baseMap, 1.0);
-	Position = vec4(vWorldPosition, 1.0);
+	Position = vWorldPosition;
 	Normal = vec4(n, 1.0);
 	SG = vec4(sgMap, 1.0);
 }
diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/GLSL/SpecularGlossinessMaskFS.glsl b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/GLSL/SpecularGlossinessMaskFS.glsl
@@ -8,7 +8,7 @@ uniform sampler2D uTexMask;
 uniform float uCutoff;
 
 in vec2 vTexCoord0;
-in vec3 vWorldPosition;
+in vec4 vWorldPosition;
 in vec3 vWorldNormal;
 in vec3 vWorldTangent;
 in vec3 vWorldBinormal;
@@ -36,7 +36,7 @@ void main(void)
 	n = normalize(n);
 
 	Diffuse = vec4(baseMap, 1.0);
-	Position = vec4(vWorldPosition, 1.0);
+	Position = vWorldPosition;
 	Normal = vec4(n, 1.0);
 	SG = vec4(sgMap.r, max(sgMap.g, 0.01), sgMap.b, 1.0);
 }
diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/GLSL/SpecularGlossinessVS.glsl b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/GLSL/SpecularGlossinessVS.glsl
@@ -8,10 +8,11 @@ in vec2 inTangentW;
 
 uniform mat4 uMvpMatrix;
 uniform mat4 uWorldMatrix;
+uniform mat4 uView;
 uniform vec4 uUVScale;
 
 out vec3 vWorldNormal;
-out vec3 vWorldPosition;
+out vec4 vWorldPosition;
 out vec3 vWorldTangent;
 out vec3 vWorldBinormal;
 
@@ -20,7 +21,10 @@ out float vTangentW;
 
 void main(void)
 {
-	vWorldPosition = (uWorldMatrix*inPosition).xyz;
+	vWorldPosition = uWorldMatrix*inPosition;
+
+	vec4 sampleFragPos = uView * vWorldPosition;
+	vWorldPosition.w = sampleFragPos.z;
 
 	vec4 worldNormal = uWorldMatrix * vec4(inNormal, 0.0);
 	vec4 worldTangent = uWorldMatrix * vec4(inTangent, 0.0);

diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/HLSL/ColorFS.hlsl b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/HLSL/ColorFS.hlsl
@@ -2,7 +2,7 @@ struct PS_INPUT
 {
 	float4 pos : SV_POSITION;
 	float2 tex0 : TEXCOORD0;
-	float3 worldPosition: WORLDPOSITION;
+	float4 worldPosition: WORLDPOSITION;
 	float3 worldNormal: WORLDNORMAL;
 };
 
@@ -26,7 +26,7 @@ PS_OUTPUT main(PS_INPUT input)
 	PS_OUTPUT output;
 
 	output.Diffuse = uColor;
-	output.Position = float4(input.worldPosition, 1.0);
+	output.Position = input.worldPosition;
 	output.Normal = float4(input.worldNormal, 1.0);
 	output.SG = float4(uSpec, uGloss, 0.0, 1.0);
 

diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/HLSL/DiffuseFS.hlsl b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/HLSL/DiffuseFS.hlsl
@@ -5,7 +5,7 @@ struct PS_INPUT
 {
 	float4 pos : SV_POSITION;
 	float2 tex0 : TEXCOORD0;
-	float3 worldPosition: WORLDPOSITION;
+	float4 worldPosition: WORLDPOSITION;
 	float3 worldNormal: WORLDNORMAL;
 };
 
@@ -30,7 +30,7 @@ PS_OUTPUT main(PS_INPUT input)
 	float3 baseMap = uTexDiffuse.Sample(uTexDiffuseSampler, input.tex0).xyz;
 
 	output.Diffuse = float4(baseMap, 1.0);
-	output.Position = float4(input.worldPosition, 1.0);
+	output.Position = input.worldPosition;
 	output.Normal = float4(input.worldNormal, 1.0);
 	output.SG = float4(uSpec, uGloss, 0.0, 1.0);
 

diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/HLSL/DiffuseNormalFS.hlsl b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/HLSL/DiffuseNormalFS.hlsl
@@ -8,7 +8,7 @@ struct PS_INPUT
 {
 	float4 pos : SV_POSITION;
 	float2 tex0 : TEXCOORD0;
-	float3 worldPosition: WORLDPOSITION;
+	float4 worldPosition: WORLDPOSITION;
 	float3 worldNormal: WORLDNORMAL;
 	float3 worldTangent: WORLDTANGENT;
 	float3 worldBinormal: WORLDBINORMAL;
@@ -44,7 +44,7 @@ PS_OUTPUT main(PS_INPUT input)
 	n = normalize(n);
 
 	output.Diffuse = float4(baseMap, 1.0);
-	output.Position = float4(input.worldPosition, 1.0);
+	output.Position = input.worldPosition;
 	output.Normal = float4(n, 1.0);
 	output.SG = float4(uSpec, uGloss, 0.0, 1.0);
 

diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/HLSL/DiffuseSpecularGlossinessVS.hlsl b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/HLSL/DiffuseSpecularGlossinessVS.hlsl
@@ -10,14 +10,15 @@ struct VS_OUTPUT
 {
 	float4 pos : SV_POSITION;
 	float2 tex0 : TEXCOORD0;
-	float3 worldPosition: WORLDPOSITION;
+	float4 worldPosition: WORLDPOSITION;
 	float3 worldNormal: WORLDNORMAL;
 };
 
 cbuffer cbPerObject
 {
 	float4x4 uMvpMatrix;
 	float4x4 uWorldMatrix;
+	float4x4 uView;
 	float4 uUVScale;
 };
 
@@ -30,7 +31,10 @@ VS_OUTPUT main(VS_INPUT input)
 	float4 worldPos = mul(input.pos, uWorldMatrix);
 	float4 worldNormal = mul(float4(input.norm, 0.0), uWorldMatrix);
 
-	output.worldPosition = worldPos.xyz;
+	float4 sampleFragPos = mul(worldPos, uView);
+	float sampleDepth = sampleFragPos.z;
+
+	output.worldPosition = float4(worldPos.xyz, sampleDepth);
 	output.worldNormal = normalize(worldNormal.xyz);
 
 	return output;

diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/HLSL/SpecularFS.hlsl b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/HLSL/SpecularFS.hlsl
@@ -11,7 +11,7 @@ struct PS_INPUT
 {
 	float4 pos : SV_POSITION;
 	float2 tex0 : TEXCOORD0;
-	float3 worldPosition: WORLDPOSITION;
+	float4 worldPosition: WORLDPOSITION;
 	float3 worldNormal: WORLDNORMAL;
 	float3 worldTangent: WORLDTANGENT;
 	float3 worldBinormal: WORLDBINORMAL;
@@ -47,7 +47,7 @@ PS_OUTPUT main(PS_INPUT input)
 	n = normalize(n);
 
 	output.Diffuse = float4(baseMap, 1.0);
-	output.Position = float4(input.worldPosition, 1.0);
+	output.Position = input.worldPosition;
 	output.Normal = float4(n, 1.0);
 	output.SG = float4(specMap.r, uGloss, 0.0, 1.0);
 

diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/HLSL/SpecularGlossinessFS.hlsl b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/HLSL/SpecularGlossinessFS.hlsl
@@ -11,7 +11,7 @@ struct PS_INPUT
 {
 	float4 pos : SV_POSITION;
 	float2 tex0 : TEXCOORD0;
-	float3 worldPosition: WORLDPOSITION;
+	float4 worldPosition: WORLDPOSITION;
 	float3 worldNormal: WORLDNORMAL;
 	float3 worldTangent: WORLDTANGENT;
 	float3 worldBinormal: WORLDBINORMAL;
@@ -42,7 +42,7 @@ PS_OUTPUT main(PS_INPUT input)
 	n = normalize(n);
 
 	output.Diffuse = float4(baseMap, 1.0);
-	output.Position = float4(input.worldPosition, 1.0);
+	output.Position = input.worldPosition;
 	output.Normal = float4(n, 1.0);
 	output.SG = float4(sgMap, 1.0);
 

diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/HLSL/SpecularGlossinessMaskFS.hlsl b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/HLSL/SpecularGlossinessMaskFS.hlsl
@@ -14,7 +14,7 @@ struct PS_INPUT
 {
 	float4 pos : SV_POSITION;
 	float2 tex0 : TEXCOORD0;
-	float3 worldPosition: WORLDPOSITION;
+	float4 worldPosition: WORLDPOSITION;
 	float3 worldNormal: WORLDNORMAL;
 	float3 worldTangent: WORLDTANGENT;
 	float3 worldBinormal: WORLDBINORMAL;
@@ -54,7 +54,7 @@ PS_OUTPUT main(PS_INPUT input)
 	n = normalize(n);
 
 	output.Diffuse = float4(baseMap, 1.0);
-	output.Position = float4(input.worldPosition, 1.0);
+	output.Position = input.worldPosition;
 	output.Normal = float4(n, 1.0);
 	output.SG = float4(sgMap.r, max(sgMap.g, 0.01), sgMap.b, 1.0);
 

diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/HLSL/SpecularGlossinessVS.hlsl b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/HLSL/SpecularGlossinessVS.hlsl
@@ -13,7 +13,7 @@ struct VS_OUTPUT
 {
 	float4 pos : SV_POSITION;
 	float2 tex0 : TEXCOORD0;
-	float3 worldPosition: WORLDPOSITION;
+	float4 worldPosition: WORLDPOSITION;
 	float3 worldNormal: WORLDNORMAL;
 	float3 worldTangent: WORLDTANGENT;
 	float3 worldBinormal: WORLDBINORMAL;
@@ -24,6 +24,7 @@ cbuffer cbPerObject
 {
 	float4x4 uMvpMatrix;
 	float4x4 uWorldMatrix;
+	float4x4 uView;
 	float4 uUVScale;
 };
 
@@ -38,7 +39,10 @@ VS_OUTPUT main(VS_INPUT input)
 	float4 worldNormal = mul(float4(input.norm, 0.0), uWorldMatrix);
 	float4 worldTangent = mul(float4(input.tangent, 0.0), uWorldMatrix);
 
-	output.worldPosition = worldPos.xyz;
+	float4 sampleFragPos = mul(worldPos, uView);
+	float sampleDepth = sampleFragPos.z;
+
+	output.worldPosition = float4(worldPos.xyz, sampleDepth);
 	output.worldNormal = normalize(worldNormal.xyz);
 	output.worldTangent = normalize(worldTangent.xyz);
 	output.worldBinormal = normalize(cross(worldNormal.xyz, worldTangent.xyz));

diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/Specular.xml b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/Specular.xml
@@ -3,6 +3,7 @@
 		<vs>
 			<uniform name="uMvpMatrix" type="WORLD_VIEW_PROJECTION" value="0" float="16" matrix="true"/>
 			<uniform name="uWorldMatrix" type="WORLD" value="0" float="16" matrix="true"/>
+			<uniform name="uView" type="DEFERRED_VIEW" value="0" float="16" matrix="true"/>
 			<uniform name="uUVScale" type="MATERIAL_PARAM" valueIndex="0" value="1.0,1.0,0.0,0.0" float="4"/>
 		</vs>
 		<fs>

diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/SpecularGlossiness.xml b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/SpecularGlossiness.xml
@@ -3,6 +3,7 @@
 		<vs>
 			<uniform name="uMvpMatrix" type="WORLD_VIEW_PROJECTION" value="0" float="16" matrix="true"/>
 			<uniform name="uWorldMatrix" type="WORLD" value="0" float="16" matrix="true"/>
+			<uniform name="uView" type="DEFERRED_VIEW" value="0" float="16" matrix="true"/>
 			<uniform name="uUVScale" type="MATERIAL_PARAM" valueIndex="0" value="1.0,1.0,0.0,0.0" float="4"/>
 		</vs>
 		<fs>

diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/SpecularGlossinessMask.xml b/Assets/BuiltIn/Shader/SpecularGlossiness/Deferred/SpecularGlossinessMask.xml
@@ -3,6 +3,7 @@
 		<vs>
 			<uniform name="uMvpMatrix" type="WORLD_VIEW_PROJECTION" value="0" float="16" matrix="true"/>
 			<uniform name="uWorldMatrix" type="WORLD" value="0" float="16" matrix="true"/>
+			<uniform name="uView" type="DEFERRED_VIEW" value="0" float="16" matrix="true"/>
 			<uniform name="uUVScale" type="MATERIAL_PARAM" valueIndex="0" value="1.0,1.0,0.0,0.0" float="4"/>
 		</vs>
 		<fs>

diff --git a/Assets/BuiltIn/Shader/SpecularGlossiness/Lighting/GLSL/SGDirectionalLightBakeFS.glsl b/Assets/BuiltIn/Shader/SpecularGlossiness/Lighting/GLSL/SGDirectionalLightBakeFS.glsl
@@ -123,7 +123,8 @@ vec3 SG(
 void main(void)
 {
 	vec3 albedo = texture(uTexAlbedo, varTexCoord0.xy).rgb;
-	vec3 position = texture(uTexPosition, varTexCoord0.xy).xyz;
+	vec4 posdepth = texture(uTexPosition, varTexCoord0.xy);
+	vec3 position = posdepth.xyz;
 	vec3 normal = texture(uTexNormal, varTexCoord0.xy).xyz;
 	vec3 data = texture(uTexData, varTexCoord0.xy).rgb;
 	vec4 light = texture(uTexLight, varTexCoord0.xy);