White LED

[J the Ninja]

I had gotten a bit frustrated trying mimic with appearance of white LEDs by smushing gaussian textures and RGB values together, so with some help from http://en.wikipedia.org/wiki/File:White_LED.png and LordCrc, I put together a little tabulated data file for it. Copy and paste this into a text file and load it up in the tabulated data texture, and set that texture as your emission color. Enjoy.

Code: Select all

Emission spectra of a typical "white" (GaN + Ce:YAG) LED. Reconstructed from http://en.wikipedia.org/wiki/File:White_LED.png
Intensity is relative, it is effectively a direct lamp color value.

wavelength: nm
lambda    intensity
(nm)       (relative gain)   
300 0.0
350 0.0
400 0.0
425 0.4
460 3.7
500 1.0
550 1.9
575 1.8
600 1.6
650 0.6
700 0.35
725 0.2
750 0.0
800 0.0


Example render (extra lighting provided by 6500k area lamp overhead):