You run BMRT by typing rendrib -d ribfile . BMRT output is a good guideline to what your ray tracer should output for the same rib file. Once you've set up lrt and BMRT, you should be ready to do this assignment. We'll be building your submissions ourselves, and those just take up space. Full credit on this assignment means your program properly renders our test files.
Extra credit is truly extra credit.
Extra credit is not curved. Extra credit is for people that really want to impress us. Implement an efficient scheme for ray tracing height fields. The system should be capable of rendering 1K x 1K height images. Read Musgrave et al. on ray tracing height fields.