THREE.JS / LIGHTS / SPOTLIGHT

A cone with a target.

A shadow-casting SpotLight projects a cookie map through a mutable cone. The lab keeps its target, shadow camera, helper geometry, and teardown boundaries visible.

INITIALIZING SPOTLIGHT—

Building a deterministic shadow scene…

intensity 100 distance 0.0 angle 30° penumbra 1.00 decay 2.00 shadow focus 1.00 shadow intensity 1.00

cookie map cone + camera helpers move light

light: SpotLight
map: 16×16 RGBA
target: marker @ 0, 0, −1.2
shadow: 512² / focus 1
helpers: hidden
draw calls: —
frames: 0
sample: NOT RUN

The frame-time sample is local WebGL2 preview evidence only; whole-example fidelity remains separate.

Sources: SpotLight · SpotLightShadow · SpotLightHelper · official example