Example shows [LINK http://library.imageworks.com/pdfs/imageworks-library-importance-sampling-of-area-lights-in-participating-media.pdf equiangular sampling technique] for multiple spherical lights
Features:
Single scattering,
Torrance-Sparrow illumination model for surfaces,
Homogeneous Media,
Depth of Field,
Motion Blur (for camera and objects)
[LINK https://www.shadertoy.com/view/ltj3zW Here] is a real-time Demo an source code on shadertoy [SMILEY :)]
[IMG #1 Image]
[IMG #1]:
![[IMG:#0]](images/7a0bb47ca7386ffc80f7de4498fe738cc333d5ce553101a1c7da23a7dca18321.png)