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MaterialsIII.md

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Materials III: Material Instances

A summarised guide on parent (master) materials and their children, creating and using material instances and overriding parent material functionality.

Parent - Child Relationship

  • This relationship mimics that of a parent (master) material and a child (instance) of that material.

  • The child can inherit any of the properties of the parent, but not combine them (i.e parent with red and blue produces child with red or blue).

Creating Material Instances

  • There are two methods of creating a material instance within unreal.

  • The first involves right clicking on the target master material and select Create Material Instance within the Content browser pane.

  • The second involves right clicking within the Content browser pane and selecting Material Instance from the Materials & Textures group. Thereafter, open the material instance and select the parent material from the Parent parameter under the General section of the Details pane.

Using Material Instances

  • The material instances do not make use of any inherited parameters by default.

  • These can be enabled and configured within the Parameter Groups section of the Details pane within the material viewer.

Overriding Parent Material Functionality

  • Certain functionalities of the parent material can be overridden by the material instance.

  • The overridable parameters can be found in the Material Property Overrides group under the General section of the Details pane.

  • These are use-case specific, where the Two Sided property, for example, is helpful in ensuring that the material is always rendered even when facing away.