[Bf-cycles] Houdini export to Cyles

[Guillaume Rouault]

oups, I should have tested it on the same scene ... actually it's not that
fast at all ... I have a core i7-2600k 3.40GHz , and it computes with
cycles somewhere around 30% faster than my Nvidia GTX 580. I don't know if
that is normal. Are there some benchmarks somewhere ?

It makes me think about another thing I don't understand :
Is it an "either or" situation with Cuda and OpenCL ? (i.e when typing
    cycles.exe --help
devides listed are :
-cpu
-opencl
-multi
yet, on my system listed devices are:
-cpu
-cuda

How do I get access to openCL capabilities ?
And could it be faster than Cuda ?

Guillaume


On Wed, Dec 9, 2015 at 12:23 PM, Guillaume Rouault <
guillaume.rouault.fx at gmail.com> wrote:

> Thank you so much Nathan
> I copy all the .cubin files in a lib directory along cycles.exe , ( I
> wouldn't have guessed it in a million years :) ) and it works nicely. I
> have a pretty "crappy" GTX 580, and it's already pretty fast.
>
> thanks again
>
> Guillaume
>
> On Wed, Dec 9, 2015 at 11:57 AM, Nathan Letwory <nathan at mcneel.com> wrote:
>
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA256
>>
>> Hi,
>>
>> You probably need to ensure cycles.exe can find the lib/ directory
>> containing the .cubin files. AFAIK by default that'd be a lib/
>> directory in the directory where your cycles.exe is.
>>
>> /Nathan
>>
>> On 09/12/2015 12:51, Guillaume Rouault wrote:
>> > Hi everyone, I have successfully compile a working version of
>> > cycles. using last availaible sources. I can render the examples
>> > scenes, no problems, runs fine.
>> >
>> > But when I type : cycles.exe --list-devices I can only see my cpu.
>> > Does that mean there something wrong the compilation process ?
>>
>> - --
>> Nathan Letwory
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