A simple raytracer that mimics the procedural interface of OpenGL. SRT uses SDL for window creation and pixel operations only. It is written in completely ansi compliant C. It supports multiple shapes including polygons, spheres, and oriented boxes. Transformations can be applied to models and the camera. Phong like materials and illumination are provided, with additional support for reflectivity and transmission. Options are included for lighting, super sampling, and your choice of float or double point precision.