Paper Title: Number: 1. Briefly Describe the Paper and its contribution to computer graphics and interactive techniques. 2. Is the exposition clear? Can the work be reproduced by a skilled graduate student? How could it be improved? 3. Are the references Adequate? 4. How would you rank this paper for the SIGGRAPH 99 Papers program on a continuous scale from 1-5, where: Reject = 1, Doubtful = 2, Possibly Accept = 3, Probably Accept = 4, Accept = 5? 5. Explain your ranking. Include suggestions for improvement and publication alternatives, if appropriate.