This article has described several techniques to model LEDs and other complex sources:

  • The easiest method, and best when experimental data is scarce, is to use the source_radial or other built-in sources
  • Experimental data, such as provided by Radiant Imaging and Opsira, gives the highest accuarcy and is very easy to use
  • Complex source models can be useful when rays are re-imaged onto the source object