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> Unreal Engine API Reference > Runtime > PhysicsCore > PhysicalMaterials > UPhysicalMaterial

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UPhysicalMaterial

Physical materials are used to define the response of a physical object when interacting dynamically with the world.

Inheritance Hierarchy

UObjectBase

UObjectBaseUtility

UObject

UPhysicalMaterial

References

Module	PhysicsCore
Header	/Engine/Source/Runtime/PhysicsCore/Public/PhysicalMaterials/PhysicalMaterial.h
Include	#include "PhysicalMaterials/PhysicalMaterial.h"

Syntax

class UPhysicalMaterial : public UObject

Remarks

Physical materials are used to define the response of a physical object when interacting dynamically with the world.

Variables

	Name	Description
bool	bOverrideFrictionCombineMode	If set we will use the FrictionCombineMode of this material, instead of the FrictionCombineMode found in the project settings.
bool	bOverrideRestitutionCombineMode	If set we will use the RestitutionCombineMode of this material, instead of the RestitutionCombineMode found in the project settings.
float	Density	Object properties.Used with the shape of the object to calculate its mass properties.
float	Friction	Surface properties.Friction value of surface, controls how easily things can slide on this surface (0 is frictionless, higher values increase the amount of friction)
TEnumAsByte< EF...	FrictionCombineMode	Friction combine mode, controls how friction is computed for multiple materials.
TUniquePtr< FPh...	MaterialHandle
float	RaiseMassToPower	Used to adjust the way that mass increases as objects get larger.
float	Restitution	Restitution or 'bounciness' of this surface, between 0 (no bounce) and 1 (outgoing velocity is same as incoming).
TEnumAsByte< EF...	RestitutionCombineMode	Restitution combine mode, controls how restitution is computed for multiple materials.
float	SleepAngularVelocityThreshold	How low the angular velocity can be before solver puts body to sleep.
int32	SleepCounterThreshold	How many ticks we can be under thresholds for before solver puts body to sleep.
float	SleepLinearVelocityThreshold	How low the linear velocity can be before solver puts body to sleep.
float	StaticFriction	Static Friction value of surface, controls how easily things can slide on this surface (0 is frictionless, higher values increase the amount of friction)
FPhysicalMateri...	Strength
TEnumAsByte< EP...	SurfaceType	To edit surface type for your project, use ProjectSettings/Physics/PhysicalSurface section
FChaosUserData	UserData

Constructors

	Name	Description
	UPhysicalMaterial ( const FObjectInitializer& ObjectIn... )
	UPhysicalMaterial ( FVTableHelper& Helper )

Destructors

	Name	Description
	~UPhysicalMaterial()

Functions

	Name	Description
EPhysicalSur...	DetermineSurfaceType ( UPhysicalMaterial const* Physi... )	Determine Material Type from input PhysicalMaterial
FPhysicsMate...	GetPhysicsMaterial()	Get the physics-interface derived version of this material
void	RebuildPhysicalMaterials()
void	SetEngineDefaultDestructiblePhysMaterial ( UPhysicalMaterial* Material )
void	SetEngineDefaultPhysMaterial ( UPhysicalMaterial* Material )

Overridden from UObject

	Name	Description
void	FinishDestroy()	Called to finish destroying the object.
void	PostEditChangeProperty ( FPropertyChangedEvent& PropertyCha... )	Called when a property on this object has been modified externally
void	PostLoad()	Do any object-specific cleanup required immediately after loading an object.

Deprecated Variables

		Name	Description
	float	DestructibleDamageThresholdScale_DEPRECATED	This property is not used anywhere, use Geometry Collection damage threshold related features instead
	TObjectPtr< cla...	PhysicalMaterialProperty_DEPRECATED

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