Class MaterialInstance

The MaterialInstance behavior aides in tracking instance material lifetime and automatically destroys instanced materials for the user. This utility component can be used as a replacement to Renderer.material or Renderer.materials. When invoking Unity's Renderer.material(s), Unity automatically instantiates new materials. It is the caller's responsibility to destroy the materials when a material is no longer needed or the game object is destroyed. The MaterialInstance behavior helps avoid material leaks and keeps material allocation paths consistent during edit and run time.

Inheritance

Object

MaterialInstance

Namespace: Microsoft.MixedReality.Toolkit.Rendering

Assembly: cs.temp.dll.dll

Syntax

public class MaterialInstance : MonoBehaviour

Properties

Material

Returns the first instantiated Material assigned to the renderer, similar to Renderer.material.

Declaration

public Material Material { get; }

Property Value

Type	Description
Material

Materials

Returns all the instantiated materials of this object, similar to Renderer.materials.

Declaration

public Material[] Materials { get; }

Property Value

Type	Description
Material[]

Methods

AcquireMaterial(Object, Boolean)

Returns the first instantiated Material assigned to the renderer, similar to Renderer.material. If any owner is specified the instanced material(s) will not be released until all owners are released. When a material is no longer needed ReleaseMaterial should be called with the matching owner.

Declaration

public Material AcquireMaterial(object owner = null, bool instance = true)

Parameters

Type	Name	Description
Object	owner	An optional owner to track instance ownership.
Boolean	instance

Returns

Type	Description
Material	The first instantiated Material.

AcquireMaterials(Object, Boolean)

Returns all the instantiated materials of this object, similar to Renderer.materials. If any owner is specified the instanced material(s) will not be released until all owners are released. When a material is no longer needed ReleaseMaterial should be called with the matching owner.

Declaration

public Material[] AcquireMaterials(object owner = null, bool instance = true)

Parameters

Type	Name	Description
Object	owner	An optional owner to track instance ownership.
Boolean	instance	Should this acquisition attempt to instance materials?

Returns

Type	Description
Material[]	All the instantiated materials.

ReleaseMaterial(Object, Boolean)

Relinquishes ownership of a material instance. This should be called when a material is no longer needed after acquire ownership with AcquireMaterial(s).

Declaration

public void ReleaseMaterial(object owner, bool autoDestroy = true)

Parameters

Type	Name	Description
Object	owner	The same owner which originally acquire ownership via AcquireMaterial(s).
Boolean	autoDestroy	When ownership count hits zero should the MaterialInstance component be destroyed?