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c489d646df
#summary UV offsets are now correctly calculated. This was previously blocking shadow game [CL 2039548 by Joe Tidmarsh in Main branch]
135 lines
2.9 KiB
Plaintext
135 lines
2.9 KiB
Plaintext
// Copyright 1998-2014 Epic Games, Inc. All Rights Reserved.
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/*=============================================================================
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OneColorShader.usf: 2D shader for drawing a single constant color.
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=============================================================================*/
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#include "Common.usf"
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/*=============================================================================
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* Vertex shader
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=============================================================================*/
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struct FOneColorVertexOutput
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{
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float4 Position : SV_POSITION;
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};
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#ifndef USING_NDC_POSITIONS
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#define USING_NDC_POSITIONS 1
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#endif
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void MainVertexShader(
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in float4 InPosition : ATTRIBUTE0,
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out FOneColorVertexOutput Output
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)
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{
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Output.Position = InPosition;
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#if !USING_NDC_POSITIONS
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DrawRectangle( InPosition, Output.Position);
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#endif
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}
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/*=============================================================================
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* Pixel shader
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=============================================================================*/
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float4 DrawColorMRT[8];
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#ifndef NUM_OUTPUTS
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#define NUM_OUTPUTS 1
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#endif
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void MainPixelShaderMRT(
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out float4 OutColor[NUM_OUTPUTS] : SV_Target0)
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{
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for (int i = 0; i < NUM_OUTPUTS; i++)
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{
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OutColor[i] = DrawColorMRT[i];
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}
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}
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void MainPixelShader(
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out float4 OutColor : SV_Target0)
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{
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OutColor = DrawColorMRT[0];
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}
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/**
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* Designed to take about 100ms of GPU time (depending on resolution and GPU),
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* To make sure that we're not CPU bound when profiling the GPU, as we can't isolate GPU idle time on PC.
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*/
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void MainLongGPUTask(out float4 OutColor : SV_Target0)
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{
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OutColor = 0;
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#if FEATURE_LEVEL >= FEATURE_LEVEL_SM4
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for (int i = 0; i < 4000; i++)
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{
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OutColor += .0001f * cos(i * .0001f) * sin(i * i * .00001f);
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}
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#else
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for (int i = 0; i < 255; i++)
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{
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OutColor += .0001f * cos(i * .0001f) * sin(i * i * .00001f);
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}
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#endif
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OutColor *= .000001f;
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}
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#if FEATURE_LEVEL >= FEATURE_LEVEL_SM5
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float4 FillValue;
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RWTexture2D<float4> FillTexture;
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float4 Params0; // Texture Width,Height (.xy); Use Exclude Rect 1 : 0 (.z)
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float4 Params1; // Include X0,Y0 (.xy) - X1,Y1 (.zw)
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float4 Params2; // ExcludeRect X0,Y0 (.xy) - X1,Y1 (.zw)
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[numthreads(8,8,1)]
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void MainFillTextureCS(uint2 XY : SV_DispatchThreadID)
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{
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float Width = Params0.x;
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float Height = Params0.y;
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bool bUseExcludeRect = (Params0.z != 0);
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float X = XY.x;
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float Y = XY.y;
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float IncludeX0 = Params1.x;
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float IncludeY0 = Params1.y;
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float IncludeX1 = Params1.z;
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float IncludeY1 = Params1.w;
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if (X < Width && Y < Height)
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{
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if (X >= IncludeX0 && X <= IncludeX1 && Y >= IncludeY0 && Y <= IncludeY1)
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{
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bool bDoWrite = true;
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/*
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if (bUseExcludeRect)
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{
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float ExcludeX0 = Params2.x;
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float ExcludeY0 = Params2.y;
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float ExcludeX1 = Params2.z;
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float ExcludeY1 = Params2.w;
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if (X >= ExcludeX0 && X <= ExcludeX1 && Y >= ExcludeY0 && Y <= ExcludeY1)
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{
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bDoWrite = false;
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}
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}
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*/
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if (bDoWrite)
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{
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FillTexture[XY] = FillValue;
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}
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}
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}
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}
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#endif
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