There are some artifacts in images, due to the conversion of TGA files to JPEG format. One with a checkerboard texture and another one showing how bump mapping affects transparency. You can get the source here . This is the well known Cornell Box. It is used mainly for global illumination tests, but, here it is anyway.
Walls are diffuse, so they produce no reflections.
You can get the source here . You can get the source here . You can get the source here . This is the same as previous scene, with a cartoon image filter applied after rendering. You can get the source here .