Code

For ray tracing assignments:

• Parser for my rayshade-derived model description language. Model1 and model2 for the first assignment.
• A couple of simple procedural models (in C), one without transparency, another with transparent a glass ball. The functions are declared in a header file.  They are the same as model1 and model2 above.  I'm providing these in case you have some bugs or want to get started without messing around with the parser.
• A bigger model that mimics the cover of Glassner's ray tracing book (image).  You'll need the wood texture (tiff, targa).  The result will look better if you tile the wood floor at about 2 by 2.
• I made a version of model1 with an area light source (image). You can also modify the other lights and change the sizes to affect the soft shadows.
• Another couple of textures:  bricks and checkerboard (the latter is good for debugging).
• Vince Scheib's TGA image read write and Vector classes
• Kenny Hoff's 3D and 4D vector, as well as PPM image output code.
• Another possible library for writing image files is Intel's jpeg library.

• Suzanne Vogel suggested that the code for vector and matrix routines from the Graphics Gems Repository might be useful for the ray tracer.  She points out that there's also a lot of other useful code.