1. Epic GamesDeveloper
  3. FMaterialXBase::ConvertNeutralNodesToDot

FMaterialXBase::ConvertNeutralNodesToDot

Convert math nodes (add, sub, div, mul) that have a neutral input, to the MaterialX node which is simply the identity or a noop This allows us to optimize the final shader by avoiding unnecessary operation on a material (for example a*1 = a) This function should be called after the subgraphs substitution in order to search for all the nodes even in the subgraphs

API > API/Plugins > API/Plugins/InterchangeImport > API/Plugins/InterchangeImport/MaterialX > API/Plugins/InterchangeImport/MaterialX/MaterialXUtils > API/Plugins/InterchangeImport/MaterialX/MaterialXUtils/FMaterialXBase

References

   
Module InterchangeImport
Header /Engine/Plugins/Interchange/Runtime/Source/Import/Public/MaterialX/MaterialXUtils/MaterialXBase.h
Include #include "MaterialX/MaterialXUtils/MaterialXBase.h"
Source /Engine/Plugins/Interchange/Runtime/Source/Import/Private/MaterialX/MaterialXUtils/MaterialXBase.cpp 
static void ConvertNeutralNodesToDot  
&40;  
    MaterialX::ElementPtr NodeGraph  
&41;

Remarks

Convert math nodes (add, sub, div, mul) that have a neutral input, to the MaterialX node which is simply the identity or a noop This allows us to optimize the final shader by avoiding unnecessary operation on a material (for example a*1 = a) This function should be called after the subgraphs substitution in order to search for all the nodes even in the subgraphs

Parameters

Name Description
NodeGraph The node graph to retrieve the different math nodes

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