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56e0701f51
This notably implements new r.Test.Alpha.* cvars to more easily generate and debug an alpha channel in any project #jira UE-179496 [FYI] eric.renaudhoude [CL 28613389 by guillaume abadie in ue5-main branch]
42 lines
986 B
Plaintext
42 lines
986 B
Plaintext
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "../Common.ush"
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//------------------------------------------------------- PARAMETERS
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uint DebugModeId;
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float OpaqueWorldDistance;
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float OpaqueLerpWorldRange;
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Texture2D<float4> SceneColorTexture;
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Texture2D<float> SceneDepthTexture;
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RWTexture2D<float4> SceneColorOutput;
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//------------------------------------------------------- ENTRY POINT
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[numthreads(8, 8, 1)]
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void MainCS(uint2 DispatchThreadId : SV_DispatchThreadID)
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{
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int2 PixelPos = View.ViewRectMinAndSize.xy + DispatchThreadId;
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float DeviceZ = SceneDepthTexture[PixelPos];
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float4 SceneColor = SceneColorTexture[PixelPos];
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float WorldDepth = ConvertFromDeviceZ(DeviceZ);
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float4 Output = SceneColor;
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BRANCH
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if (DebugModeId == 0)
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{
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float IsTranslucent = saturate((WorldDepth - OpaqueWorldDistance) * rcp(OpaqueLerpWorldRange));
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SceneColor.rgb *= 1.0 - IsTranslucent;
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SceneColor.a = IsTranslucent;
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}
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SceneColorOutput[PixelPos] = SceneColor;
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}
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