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140 行
3.4 KiB

Shader "Hidden/Internal-Obscurity" {
Properties {
_LightTexture0 ("", any) = "" {}
_ShadowMapTexture ("", any) = "" {}
_SrcBlend ("", Float) = 1
_DstBlend ("", Float) = 1
}
SubShader {
Pass
{
ZWrite Off
ZTest Always
Cull Off
Blend Off
//Blend [_SrcBlend] [_DstBlend]
CGPROGRAM
#pragma target 4.5
#pragma vertex vert
#pragma fragment frag
#pragma multi_compile USE_FPTL_LIGHTLIST USE_CLUSTERED_LIGHTLIST
#pragma multi_compile __ ENABLE_DEBUG
#include "UnityLightingCommon.cginc"
float3 EvalMaterial(UnityLight light, UnityIndirect ind);
// uses the optimized single layered light list for opaques only
#ifdef USE_FPTL_LIGHTLIST
#define OPAQUES_ONLY
#endif
#include "TiledLightingTemplate.hlsl"
Texture2D _CameraDepthTexture;
Texture2D _CameraGBufferTexture0;
Texture2D _CameraGBufferTexture1;
Texture2D _CameraGBufferTexture2;
Texture2D _CameraGBufferTexture3;
struct v2f {
float4 vertex : SV_POSITION;
float2 texcoord : TEXCOORD0;
};
v2f vert (float4 vertex : POSITION, float2 texcoord : TEXCOORD0)
{
v2f o;
o.vertex = UnityObjectToClipPos(vertex);
o.texcoord = texcoord.xy;
return o;
}
struct StandardData
{
float3 specularColor;
float3 diffuseColor;
float3 normalWorld;
float smoothness;
float3 emission;
};
struct LocalDataBRDF
{
StandardData gbuf;
// extras
float oneMinusReflectivity;
float3 Vworld;
};
static LocalDataBRDF g_localParams;
StandardData UnityStandardDataFromGbufferAux(float4 gbuffer0, float4 gbuffer1, float4 gbuffer2, float4 gbuffer3)
{
StandardData data;
data.normalWorld = normalize(2*gbuffer2.xyz-1);
data.smoothness = gbuffer1.a;
data.diffuseColor = gbuffer0.xyz; data.specularColor = gbuffer1.xyz;
float ao = gbuffer0.a;
data.emission = gbuffer3.xyz;
return data;
}
float3 EvalMaterial(UnityLight light, UnityIndirect ind)
{
StandardData data = g_localParams.gbuf;
return UNITY_BRDF_PBS(data.diffuseColor, data.specularColor, g_localParams.oneMinusReflectivity, data.smoothness, data.normalWorld, g_localParams.Vworld, light, ind);
}
half4 frag (v2f i) : SV_Target
{
uint2 pixCoord = ((uint2) i.vertex.xy);
float zbufDpth = FetchDepth(_CameraDepthTexture, pixCoord.xy).x;
float linDepth = GetLinearDepth(zbufDpth);
float3 vP = GetViewPosFromLinDepth(i.vertex.xy, linDepth);
float3 vPw = mul(g_mViewToWorld, float4(vP, 1)).xyz;
float3 Vworld = normalize(mul((float3x3) g_mViewToWorld, -vP).xyz); //unity_CameraToWorld
float4 gbuffer0 = _CameraGBufferTexture0.Load( uint3(pixCoord.xy, 0) );
float4 gbuffer1 = _CameraGBufferTexture1.Load( uint3(pixCoord.xy, 0) );
float4 gbuffer2 = _CameraGBufferTexture2.Load( uint3(pixCoord.xy, 0) );
float4 gbuffer3 = _CameraGBufferTexture3.Load( uint3(pixCoord.xy, 0) );
StandardData data = UnityStandardDataFromGbufferAux(gbuffer0, gbuffer1, gbuffer2, gbuffer3);
g_localParams.gbuf = data;
g_localParams.oneMinusReflectivity = 1.0 - SpecularStrength(data.specularColor.rgb);
g_localParams.Vworld = Vworld;
uint numLightsProcessed = 0;
float3 c = data.emission + ExecuteLightList(numLightsProcessed, pixCoord, vP, vPw, Vworld);
#if ENABLE_DEBUG
c = OverlayHeatMap(pixCoord & 15, numLightsProcessed, c);
#endif
return float4(c,1.0);
}
ENDCG
}
}
Fallback Off
}