THREE.JS / FOUNDATIONS 269
The fixture has a fingerprint.
A spotlight is not just a cone. IES data gives the fixture an angular intensity profile, turning a generic beam into a measured distribution.
Initializing IES spotlights—
Parsing IES-format photometric profiles.
Study issue
- BACKEND
- —
- SELECTED FIXTURE
- —
- PROFILE
- —
- INTENSITY
- —
- BEAM ANGLE
- —
Photometric controlsWAITING
IES contract LIGHT PROFILE
parserIESLoader.parse()
lightIESSpotLight
mapiesMap
falloffdecay = 2
helpershidden
fallbackdirect SpotLight
The selected fixture owns one parsed angular profile; the other three profiles remain visible for comparison.
The renderer will report whether the IES node path is active after initialization.
Derived from the official IES Spot Light example, IESSpotLight, SpotLight, and IESLoader contracts.