Test Scenes

One of the primary goals in creating these models was simplicity. For that reason, the geometric primitives are all polygons, there are two triangles in one scene (that could be ignored if needed), and the rest are rectangles. The objects are all solid, except for the lights which are represented as single rectangles that emit only on the front facing side. There are a total of three different materials in the scenes. In the first four there are only two, a diffuse reflector with reflectivity of .5 and a diffuse (Lambertian) emitter with reflectivity of 0 and an emitted radiance of 1 (all results are for a single wavelength). In the final scene there is also a perfect mirror, with specular reflectivity of 1.

All of the reference images have been rendered using path tracing [3] with 100000 samples per pixel and with a resolution of 256x256.