What it does
terrain.heightAt is a value to read rather than a call: it is written without parentheses.
Signature
terrain.heightAtArguments
It takes none.
Example · generated
function update(dt) { const heightAt = terrain.heightAt;}terrain.heightAt is called with values of the shape its signature asks for. The code sits in update(dt), which the engine calls every frame: dt is the time since the last one, in seconds.