Rendering the SAME vrscene on WinXP64 and Fedora15 producing different output

[ultrasonic]

On which side is VRay on Mac ?
Windows speed or Linux speed ?
Thanks.

I would guess it's slower on the mac as well since it is using GCC...am i right?

[alainfx]

I would guess it's slower on the mac as well since it is using GCC...am i right?

Yes, t.petrov confirmed it at 12:38 PM :

GCC speed + slower processors most of the time

[ultrasonic]

Hmmm...10%-20% is about the decrease i noticed...since speed is everything i would beg u to look how you can improve mac & linux builds...i have no idea how hard this is, but it is kind of a NOGO for me to switch to linux when i know that all my renders are going to take that much longer...would it be possible to have two different builds for linux using the intel compiler AND gcc as a fallback? I think houdini is offering a similar option.

I think this question slipped through...what about the idea of having an additional intel-compiler linux version to get back to speed again? This would really save us a lot of time! And it would also save the environment

regards
Oli