Ray Tracing in Graphics Hardware

Results

�Ray Engine GH02

�200K rays/s for highly
coherent, small (2.5K) scenes

�115K rays/s for large (34K)
complicated scenes

�Wald et al. EGRW01

�P3 SSE: 200K � 1.5M rays/s

�CPU-SSE tightly coupled

�Purcell et al. S02

�300K rays/s large (35K)

�up to 4M rays/s small (35)

�

207K rays/s

150K rays/s

115K rays/s

128K rays/s

131K rays/s


	Stanford GPURT:
	Quake scene: 35K tri, 256^2 pixels, eye+shadow, 3-5 fps -> 32K rays at 5fps -> 160K rays/s
	Cornell box: 35 tri, 256^2 pixels, eye+shadow, 10-15 fps -> 32K rays at 15fps -> 1.6M rays/s