I’ve added a few written tutorials to my website.
They explain the 3 methods used in PyroEvil’s Molecular Add-on to assign a color to the particle spheres:
- Set Global UV
- Bake UV at ending
- Set Active UV
http://gimblender.com/blender/tutorials/molecular/global_uv/global_uv.htm
http://gimblender.com/blender/tutorials/molecular/bake_uv/bake_uv.htm
http://gimblender.com/blender/tutorials/molecular/active_uv/active_uv.htm
Using the methods explained in the above tutorials, you should be able to make similar effects to:
If you see any mistakes or have any suggestions for improvements, please let me know.