-primitives: shere, plane, triangle
-triangle surface (mesh)
-obj format support
-lights: point light
-camera lens: planar, cylindrical, spherical
-lighting: ambient, diffuse, specular (Phong, Blinn-Phong)
-shadows: simple soft shadows
-ray types: reflection, transmission
-internal memory manager and profiler
-internal code profiler
-acceleration structure (KDTree)
-photon map
-multi-threading support (ThreadPool)