TM is sold in modules so that you can buy the exact capabilities that you need. Build mechanical and optical systems consisting of up to 1,000 geometrical components. You can model everything from simple mirrors and lenses, to complex systems of imaging and light-concentrating devices. Virtually any incoherent source can be modeled with the Basic module, starting with point sources, ray grids and fans, and ending with incandescent bulbs and high-intensity discharge lamps.
Rays can encounter surfaces in any order and any number of times.
Everything about ASAP is optimized for speed. Rays can be traced forwards, backwards, continuously, or in steps. Gives you the ability to add more geometry and spatial resolution to your analysis. The 3-D system surface geometry entered into a CAD system is directly translated into ASAP edge entities with the IGES translator. These edge entities can describe nearly any configuration, including a 10,000-point Bezier geometry.