A GPU raytracer written using GLSL that also supports CPU rendering. Written in 2006. A much comprehensive ray-tracer could be written using todays hardware. Inspired from NVidia Cg Raytracing Demo. Nevertheless, it supports the following;

• Phong, Blinn, Minnaert, Anisotropic Ward, Cook-Torrence shading models
• 2 light sources
• Ray-trace depth up to 8 with shadow rays
• Spheres
• Every option can be altered on runtime using the GUI
• 3 different scenes