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> Unreal Engine API Reference > Runtime > Engine > Materials > UMaterialInstanceDynamic > UMaterialInstanceDynamic::InitializeScalarParameterAndGetIndex

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UMaterialInstanceDynamic::InitializeScalarParameterAndGetIndex

Use this function to set an initial value and fetch the index for use in the following function.

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References

Module	Engine
Header	/Engine/Source/Runtime/Engine/Classes/Materials/MaterialInstanceDynamic.h
Include	#include "Materials/MaterialInstanceDynamic.h"
Source	/Engine/Source/Runtime/Engine/Private/Materials/MaterialInstanceDynamic.cpp

Syntax

bool InitializeScalarParameterAndGetIndex
(
    const FName & ParameterName,
    float Value,
    int32 & OutParameterIndex
)

Remarks

Generally that's only if you're using an unusually high number of parameters in a material AND setting a huge number of parameters in the same frame.

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