Sphere Cast

Node description and basic instructions

Description

Casts a sphere along a ray and returns detailed information on what was hit.

This is useful when a Raycast does not give enough precision, because you want to find out if an object of a specific size, such as a character, will be able to move somewhere without colliding with anything on the way. Think of the sphere cast like a thick raycast. In this case the ray is specified by a start vector and a direction.

Sphere Cast will not detect colliders for which the sphere overlaps the collider. Passing a zero radius results in undefined output and doesn't always behave the same as Raycast

bool True when the sphere sweep intersects any collider, otherwise false.

To create it, right-click on free space in AI Tree inspector and select Create Node/Tasks/Physics/Sphere Cast.

This task node has a number of fields, that are highlighted in picture below.

Fields

Name	Description
Node Name	Name of node
Ignore Abort Self	Whether node ignores abort self or not
Origin	Origin of the Sphere Cast
Direction	Direction of the Sphere Cast
Radius	Radius of the sphere
Max Distance	Max length of the cast (by default: infinity)
Culling Layer	Used to selectively ignore colliders when casting a Sphere Cast
Query Trigger Interaction	Specifies whether this query should hit Triggers

Message

Name	Description
Message	Value of message
Argument	Argument of message in Blackboard