Rasagar/Library/PackageCache/com.unity.render-pipelines.high-definition/Editor/RenderPipeline/CustomPass/CustomPassFullScreenShader.template

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2024-08-26 13:07:20 -07:00
Shader "FullScreen/#SCRIPTNAME#"
{
HLSLINCLUDE
#pragma vertex Vert
#pragma target 4.5
#pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
#include "Packages/com.unity.render-pipelines.high-definition/Runtime/RenderPipeline/RenderPass/CustomPass/CustomPassCommon.hlsl"
// The PositionInputs struct allow you to retrieve a lot of useful information for your fullScreenShader:
// struct PositionInputs
// {
// float3 positionWS; // World space position (could be camera-relative)
// float2 positionNDC; // Normalized screen coordinates within the viewport : [0, 1) (with the half-pixel offset)
// uint2 positionSS; // Screen space pixel coordinates : [0, NumPixels)
// uint2 tileCoord; // Screen tile coordinates : [0, NumTiles)
// float deviceDepth; // Depth from the depth buffer : [0, 1] (typically reversed)
// float linearDepth; // View space Z coordinate : [Near, Far]
// };
// To sample custom buffers, you have access to these functions:
// But be careful, on most platforms you can't sample to the bound color buffer. It means that you
// can't use the SampleCustomColor when the pass color buffer is set to custom (and same for camera the buffer).
// float4 CustomPassSampleCustomColor(float2 uv);
// float4 CustomPassLoadCustomColor(uint2 pixelCoords);
// float LoadCustomDepth(uint2 pixelCoords);
// float SampleCustomDepth(float2 uv);
// There are also a lot of utility function you can use inside Common.hlsl and Color.hlsl,
// you can check them out in the source code of the core SRP package.
float4 FullScreenPass(Varyings varyings) : SV_Target
{
UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(varyings);
float depth = LoadCameraDepth(varyings.positionCS.xy);
PositionInputs posInput = GetPositionInput(varyings.positionCS.xy, _ScreenSize.zw, depth, UNITY_MATRIX_I_VP, UNITY_MATRIX_V);
float3 viewDirection = GetWorldSpaceNormalizeViewDir(posInput.positionWS);
float4 color = float4(0.0, 0.0, 0.0, 0.0);
// Load the camera color buffer at the mip 0 if we're not at the before rendering injection point
if (_CustomPassInjectionPoint != CUSTOMPASSINJECTIONPOINT_BEFORE_RENDERING)
color = float4(CustomPassLoadCameraColor(varyings.positionCS.xy, 0), 1);
// Add your custom pass code here
// Fade value allow you to increase the strength of the effect while the camera gets closer to the custom pass volume
float f = 1 - abs(_FadeValue * 2 - 1);
return float4(color.rgb + f, color.a);
}
ENDHLSL
SubShader
{
Tags{ "RenderPipeline" = "HDRenderPipeline" }
Pass
{
Name "Custom Pass 0"
ZWrite Off
ZTest Always
Blend SrcAlpha OneMinusSrcAlpha
Cull Off
HLSLPROGRAM
#pragma fragment FullScreenPass
ENDHLSL
}
}
Fallback Off
}