A physic material is a type of Asset that allows you to control how to surface of a PhysicObject will behave. It is used to adjust friction and bouncing effects (restitution) of two colliding objects (RigidBody). For SoftBody a physic material will allow you to control the flexibility (the linear stiffness) of each primitive.

Static Variables

Name Description

asset Parent Asset where the PhysicMaterial structure is maintained.

Declaration

Asset *asset

Variables

Name	Description
`friction`	Coulomb coefficient to use for the Collider (RigidBody only).
Declaration float friction Range 0.0 to 1.0
`restitution`	Controls the elasticity of the collision (RigidBody only).
Declaration float restitution Range 0.0 to 1.0
`friction_combiner`	The Combiner to use for friction.
Declaration Combiner friction_combiner
`restitution_combiner`	The Combiner to use for restitution.
Declaration Combiner restitution_combiner
`linear_stiffness`	Controls how stiff the faces attached to this PhysicMaterial should be (SoftBody only).
Declaration float linear_stiffness Range 0.0 to 1.0

Combiner

Constant values that enumerate the type of combiner the PhysicMaterial should use from friction and restitution.

kMultiply: Multiply the two Collider PhysicMaterial values.
kAverage: Average the two Collider PhysicMaterial values.
kMinimum: Select the minimum PhysicMaterial values between the two Collider.
kMaximum: Select the maximum PhysicMaterial values between the two Collider.

Note: If one of the Collider does not have any PhysicMaterial attached default friction (0.5) and restitution (0.0) values will be used.