IES LIGHTS — Quan — Truc – Phuc —
Examples of light distribution Source: solidangle.com
IES Illuminating Engineering Society A standard file format created for electronic transfer of photometric data over the web. IES file is the measurement of distribution of light.
Source: cgarena.com
Same render with different IES Lights IES in 3ds Max Two built in IES Light: IES Sun & IES Sky IES Sun: Physically-based light object that simulates sunlight IES Sky: simulates atmospheric effects 3ds Max also allows to use external IES files through its Photometric Web feature. Same render with different IES Lights
Source: www.cgarena.com IES Viewer free tool Source: www.cgarena.com
DEMO