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- Defines will still be there if we're dumping the shader code for debug. - This makes the code less unique in general case and also avoids unnecessary works that no one sees. #rb Lukas.Hermanns [FYI] Lukas.Hermanns, Rolando.Caloca #ROBOMERGE-SOURCE: CL 11311362 via CL 11311438 #ROBOMERGE-BOT: (v653-11302973) [CL 11311455 by arciel rekman in Main branch]
36 lines
1.3 KiB
C
36 lines
1.3 KiB
C
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "ShaderCore.h"
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/** Governs the behavior for adding shader defines to the preprocessed source. Can be helpful for the debugging, but makes the source unique
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which can prevent efficient caching.
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*/
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enum class EDumpShaderDefines : uint8
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{
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/** Will not be dumped unless Input.DumpDebugInfoPath is set */
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DontCare,
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/** No defines */
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DontIncludeDefines,
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/** Defines will be added in the comments */
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AlwaysIncludeDefines
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};
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/**
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* Preprocess a shader.
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* @param OutPreprocessedShader - Upon return contains the preprocessed source code.
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* @param ShaderOutput - ShaderOutput to which errors can be added.
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* @param ShaderInput - The shader compiler input.
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* @param AdditionalDefines - Additional defines with which to preprocess the shader.
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* @param bShaderDumpDefinesAsCommentedCode - Whether to add shader definitions as comments.
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* @returns true if the shader is preprocessed without error.
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*/
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extern SHADERPREPROCESSOR_API bool PreprocessShader(
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FString& OutPreprocessedShader,
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FShaderCompilerOutput& ShaderOutput,
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const FShaderCompilerInput& ShaderInput,
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const FShaderCompilerDefinitions& AdditionalDefines,
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EDumpShaderDefines DefinesPolicy = EDumpShaderDefines::DontCare);
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