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so gpu renderers
show user profile  Mr_Stabby
now that more serious ones have started emerging, how do they stack up to their cpu based counterparts? personally ive only tried MR's iray and while i find it does its thing very nice and fast i was disappointed to find out that it in fact only does one thing(final render with all the bells and whistles). While most of the MR essential material/lighting options were present, its complete lack of control over desired shading options has pretty much ruled it out as a production renderer for me which given its main advantage - speed if was kind of hoping to use it for. Anyways, do other vendors such as vray rt suffer the same issues?

read 870 times
2/4/2011 7:41:58 PM (last edit: 2/4/2011 7:41:58 PM)
show user profile  BishBashRoss
RT sufferers from similar problems. GPU memory issues, lack of shader support, displacement, etc.

read 867 times
2/4/2011 7:45:11 PM (last edit: 2/4/2011 7:45:11 PM)
show user profile  Nik Clark
Same with iray.

read 858 times
2/4/2011 8:04:36 PM (last edit: 2/4/2011 8:04:36 PM)
show user profile  advance-software
give it time - it's early first generation tech.
read 851 times
2/4/2011 8:24:54 PM (last edit: 2/4/2011 8:25:04 PM)
show user profile  Nik Clark
I expect third generation by now.

read 847 times
2/4/2011 8:26:17 PM (last edit: 2/4/2011 8:26:51 PM)
show user profile  Vivifyer
so.. its still to early to actually use GPU's to render out animations. Only really useful for testing shaders in a simple environment?
Vivifyer - Lastpixel

read 714 times
4/11/2011 9:48:05 AM (last edit: 4/11/2011 9:48:05 AM)
show user profile  Mr_Stabby
cant even do that really since they act different to a degree in cpu renders

read 695 times
4/11/2011 10:37:54 AM (last edit: 4/11/2011 10:37:54 AM)
show user profile  Nik Clark
While Iray. etc are impressive. I feel let down. I just want my renders to be faster because the GPU is also used for calculations.

Please, AS, don't give me an explanation of why this isn't that easy, and blah blah blah. I just want faster renders. GPU's are amazingly fast. I want to use this power without having to use an unbiased render engine. I want mental ray to use the GPU as well as the CPU's.

unbiased renders are of no use to me at all, and won't be until the gpu is at least ten times faster and graphic cards have ten plus GB.


read 688 times
4/11/2011 10:47:48 AM (last edit: 4/11/2011 10:48:39 AM)
show user profile  advance-software
/does not give explanation, as requested :)

read 673 times
4/11/2011 11:30:48 AM (last edit: 4/11/2011 11:33:38 AM)
show user profile  BishBashRoss
I thought Iray was pretty quick when I tested it, but only set up a very basic scene. Has anyone got a test scene so we can compare with mental ray and different hardware?

read 672 times
4/11/2011 11:31:09 AM (last edit: 4/11/2011 11:31:09 AM)
show user profile  BishBashRoss
I'm kinda interested in a reason AS in layman's terms if possible. :)

read 661 times
4/11/2011 11:44:45 AM (last edit: 4/11/2011 11:44:45 AM)
show user profile  advance-software
da programmaz need to do mor shit.
read 659 times
4/11/2011 11:47:21 AM (last edit: 4/11/2011 11:47:21 AM)
show user profile  BishBashRoss

read 657 times
4/11/2011 11:48:38 AM (last edit: 4/11/2011 11:48:38 AM)
show user profile  Nik Clark
Programming different architecture chips, with different memory systems to run parallel tasks apparently not a trivial matter.

I had hoped that CUDA would simply make this work. Since Nvidia bought MI, and started working on this, I had very high expectations.

These high expectations have not been met in the slightest.

read 648 times
4/11/2011 11:56:52 AM (last edit: 4/11/2011 11:56:52 AM)
show user profile  advance-software
OpenCL not CUDA. CUDA is vendor specific (nvidia).
read 645 times
4/11/2011 12:00:15 PM (last edit: 4/11/2011 12:00:15 PM)
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