# boundingBox The minimum and maximum corner points of the object’s bounding box. ``` var boundingBox: (min: SCNVector3, max: SCNVector3) { get set } ``` ## Discussion Scene Kit defines a bounding box in the local coordinate space using two points identifying its corners, which implicitly determine six axis-aligned planes marking its limits. For example, if a geometry’s bounding box has the minimum corner `{-1, 0, 2}` and the maximum corner `{3, 4, 5}`, all points in the geometry’s vertex data have an x-coordinate value between `-1.0` and `3.0`, inclusive. The coordinates provided when reading this property are valid only if the object has a volume to be measured. For a geometry containing no vertex data or a node containing no geometry, the values `min` and `max` are both zero. By default, Scene Kit automatically computes the bounding volumes of nodes and geometries and uses this information to assist in rendering. Setting a new value for this property overrides the default bounding box. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)