Design and Implementation of an Energy-Efficient Ray Tracing Unit

• Main Authors: Wu, Tzung-Han, 吳宗翰
• Other Authors: Van, Lan-Da
• Format: Others
• Language: en_US
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/93998058770181266205

碩士 === 國立交通大學 === 資訊科學與工程研究所 === 102 === In this thesis, an energy-efficient ray tracing unit for sphere primitive is proposed. To reach energy-efficiency, we implement the following techniques. 1) Dual mode intersection unit supports triangle intersection and sphere intersection with hardware sharing; 2) Ray generator unit reduces a large amount external memory access and power; 3) Ray accumulator prevents stall caused by waiting for primitive data. From the synthesis implementation result in TSMC 90nm process technology, the energy-efficiency is 156.78 (ray/uJ), where the peak performance of frame rate is 4.54 and the resulting power is 13.9mW at 100MHz