Photopia™ is the perfect optical design software for your solar and daylighting optical design projects. Photopia is used for designing complex daylighting systems, including light shelves, skylights, tubular daylight devices, solar tracking skylights and a range of other devices. Photopia has also been used in solar applications, including PV concentrators and Stirling engine concentrators.
Photopia's library contains a wide range of materials commonly used in daylight devices as well as source models for the standard CIE sky conditions, making it easy to determine your device's performance for any time of the year for any location.
Photopia is a plug-in for both SOLIDWORKS® and Rhino®. If you are not using SOLIDWORKS, then Photopia for Rhino is the best option since it includes a full seat of Rhino and allows you to work with IGES or STEP CAD models from any other program, including CATIA®, SOLIDWORKS®, AutoCAD®, Creo Parametricngineer CREO®, SolidEdge®, and Inventor®.