Get Attribute: collisionEventNormal

Menu Path : Operator > Attribute > Get Collision Event Normal

The Get Collision Event Normal operator returns the surface normal at the point of impact during the current frame.

To write to the collisionEventNormal attribute, add a Collision Shape Block to your graph and set its Collision Attributes property to Write Punctual Contact Only or Write Always.

Operator settings

Setting	Type	Description
Location	Enum	The location of the attribute. The options are: • Current: Gets the value of the attribute from the current system data container. For example, particle data from a Particle System. • Source: Gets the value of the attribute from the previous system data container read from. You can only read from this Location in the first Context of a system after a system data change. For example, in an Initialize Particle Context.

Operator settings

Setting	Type	Description
Location	Enum	The location of the attribute. The options are: • Current: Gets the value of the attribute from the current system data container. For example, particle data from a Particle System. • Source: Gets the value of the attribute from the previous system data container read from. You can only read from this Location in the first Context of a system after a system data change. For example, in an Initialize Particle Context.

Operator properties

Output	Type	Description
Collision Event Normal	Vector3	The value of the collisionEventNormal attribute, which represents the surface normal at the point of impact, based on Location. If the particle hasn't collided with any surfaces, this operator returns (0,0,0).

Details

The value the operator returns uses the system's space, either local space or world space.