Get Attribute: collisionEventCount

Menu Path : Operator > Attribute > Get Collision Event Count

The Get Collision Event Count operator outputs the number of times a particle has hit a surface since it was spawned.

To write to the Get Collision Event Count attribute, add a Collision Shape Block to your graph and set its Collision Attributes property to Write Punctual Content 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 Count	uint	The value of the collisionEventCount attribute, which is the number of times the particle has hit a surface, based on Location. If the particle hasn't collided with any surfaces, the operator returns the default attribute value.

Details

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