light camera computer-graphics ray-tracer sphere openmp triangle bmp scene refraction ray raycasting ray-tracing reflectivity phong-lighting reflections shadows total-internal-reflection supersampling

physical-modeling teaching-materials total-internal-reflection optics-simulation

computer-graphics ray-tracer refraction barycentric-coordinates texture-mapping depth-of-field total-internal-reflection smooth-shadow blinn-phong-model intersection-math subtractive-shadow vertex-normal recursive-ray-tracer