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b80335aa8f
NormalMapPreview and SimpleElementNormalMap shaders are deprecated and should not be used thumbnail seemed to be the only thing using them, it no longer does use the standard texture preview shader which has a normal map flag instead #rnx [CL 30324010 by charles bloom in ue5-main branch]
48 lines
1.4 KiB
Plaintext
48 lines
1.4 KiB
Plaintext
// Copyright Epic Games, Inc. All Rights Reserved.
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/*=============================================================================
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SimpleElementNormalMapPixelShader.hlsl: Pixel shader for previewing normal
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map textures rendered as simple elements.
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Deprecated, do not use.
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Use SimpleElementTexture2DPreviewPixelShader.usf instead, with the normal map flag.
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=============================================================================*/
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#include "Common.ush"
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#define WRITE_TO_GBUFFER (FEATURE_LEVEL >= FEATURE_LEVEL_SM4 && !FORWARD_SHADING)
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Texture2D NormalMapTexture;
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SamplerState NormalMapTextureSampler;
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void Main(
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in float2 TextureCoordinate : TEXCOORD0,
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out float4 OutColor : SV_Target0
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#if WRITE_TO_GBUFFER
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,out float4 OutWorldNormal : SV_Target1
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#endif
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)
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{
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const float4 NormalSample = Texture2DSample(NormalMapTexture, NormalMapTextureSampler, TextureCoordinate);
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const float4 Normal = UnpackNormalMap(NormalSample);
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const float4 RescaledNormal = float4(Normal.xyz * 0.5 + 0.5, 1);
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OutColor = RETURN_COLOR(RescaledNormal);
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/*
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// this shader does no gamma correction
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if( Gamma != 1.0 )
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{
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// typically Gamma = 1.0/2.2
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// then this does LinearToSrgb
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OutColor.rgb = ApplyGammaCorrection(saturate(OutColor.rgb), Gamma * 2.2);
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}
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*/
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#if WRITE_TO_GBUFFER
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// Set the G buffer bits that indicate that deferred lighting and image reflections are not enabled
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OutWorldNormal = 0;
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#endif
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}
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