bool LoadSource ( const ANSICHAR * ShaderSource, const ANSICHAR * Filename, const ANSICHAR * EntryPoint, EShaderFrequency ShaderStage, const [FShaderCompilerDefinitions](API\Runtime\RenderCore\FShaderCompilerDefinitions) * Definitions, const [TArray](API\Runtime\Core\Containers\TArray)< [FString](API\Runtime\Core\Containers\FString) > * ExtraDxcArgs )