chickadee » hyperscene » node-needs-update!

node-needs-update! NODEprocedure

Nodes need to be informed when they have been modified in such a way that they need to be updated. Most node modification functions (set-node-position!, move-node!, set-node-bounding-sphere!) call this automatically, but Hyperscene cannot tell when a node’s rotation quaternion has been modified. Make sure to call node-needs-update! after modifying node-rotation’s return value.