unreal.MaterialExpressionMaterialXMask

class unreal.MaterialExpressionMaterialXMask(outer: Object | None = None, name: Name | str = 'None')

Bases: MaterialExpression

Merge nodes take two 4-channel (color4) inputs and use the built-in alpha channel(s) to control the compositing of the A and B inputs. “A” and “B” refer to the non-alpha channels of the A and B inputs respectively, and “a” and “b” refer to the alpha channels of the A and B inputs. Merge nodes are only defined for float4 inputs Merge nodes support an optional float input Alpha , which can be used to mix the original B value with the result of the blend operation.

Operation: B*a Result: Lerp(B, B*a, Alpha)

C++ Source:

• Plugin: Interchange

• Module: InterchangeImport

• File: MaterialExpressionMask.h

Editor Properties: (see get_editor_property/set_editor_property)

• const_alpha (float): [Read-Write] only used if Alpha is not hooked up

• desc (str): [Read-Write] A description that level designers can add (shows in the material editor UI).

• material_expression_editor_x (int32): [Read-Write]

• material_expression_editor_y (int32): [Read-Write]