Hot Spot Studio

Program: Hot Spot Studio
License: Freeware

Description:
From Hot Spot Studio website:

This fun little freeware toy lets you create stunning looking images. Place your "spotlights" on the work canvas and let the program render the lights using its advanced lightning formulas. You'll be surprised at how much fun it is to play with!

Hot Spot Studio is not available in PortableApps.com Format.
Portable zip file is avaliable

Website: rlvision.com/spots/about.asp