Early GPU Ray Tracing
�Implemented
on ATI
Radeon 8500 DX 8.1
Radeon 8500 DX 8.1
�Pixel
Shaders 1.4
�16-bit
fixed point
�Limited
precision
resulted in errors
resulted in errors
�114M
ray-triangle ints/s
�Much
faster than best
single CPU time
(20-40M on 800MHz P3, Wald et al. EGRW01)
single CPU time
(20-40M on 800MHz P3, Wald et al. EGRW01)
�Expect
gap to widen further
