Cathedral Demo

This is a graphics demo featuring projection lights to create light rays streaming through a stained glass window. The technique can be adopted for any window and numerous environmental effects.

The demo also features two ways of controlling transparency which in this case is used to create a realistic reflecting floor effect. The first way is via the alpha channel in a PNG texture file. The second is via a JPG assigned to an NL2MAT file with transparency enabled. The second method allows for more control over transparency as well as shader effects.