A very interest John Carmack interview ...

[dpephd]

www.pcper.com/reviews/Editorial/John-Carmack-Interview-GPU-Race-Intel-Graphics-Ray-Tracing-Voxels-and-more

Larrabee, ray tracing, and how he thinks x86-based ray tracing wins,
even in the face of better GPGPU processing times ..

"Interestingly, Carmack discussed using ray tracing and x86 CPUs for
the back end processing and mega-texture generation on RAGE. While
performance per watt and per processor was still better using the
GPGPU implementation id Software created at the beginning of
development, the fact that development, maintenance and upkeep were
significantly easier when using the x86 ray tracing method made the
decision easy for him. In short, he says “in terms of results per
developer hour, it is much, much better.” "

ispc is going to reduce that x86-GPGPU performance gap based upon what
I'm seeing with Matt's examples.

Doug

[dpephd]

That link should be
http://www.pcper.com/reviews/Editorial/John-Carmack-Interview-GPU-Race-Intel-Graphics-Ray-Tracing-Voxels-and-more

(Hopefully this works!)

On Aug 12, 10:06 pm, dpephd <dpep...@gmail.com> wrote:
> www.pcper.com/reviews/Editorial/John-Carmack-Interview-GPU-Race-Intel...