[Bf-cycles] Cucles rendering speed difference between preview viewport and final rendering

[Le Jardin Digital]

i can't attach the exemple file, perhaps it's too big (512MB zipped file ).

For the message before, sorry, _*it was a mistake*_: the scene was 
recorded at 30samples for rendering...

For the maya-prefs bug, i've found a solution:
added the --factory-startup at the command line...

But i there's still the problem of rendering speed with the command line 
( same speed that CTRL-F12 ).

Sorry for monopolising this thread...

 


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Brecht Van Lommel a écrit :
> For rendering fairly simple images there's a CPU bottleneck with F12
> rendering, for viewport everything stays on the GPU. It will be
> addressed in one of the following weeks, it needs some bigger changes.
> Background render from the command line does not suffer from the issue
> as far as I know, that's the only work around I can suggest now.
>
> Brecht
>
> On Fri, Dec 30, 2011 at 1:05 PM, Le Jardin Digital
> <contact at lejardindigital.fr> wrote:
>   
>> Hi
>>
>> can someone explain me this:
>>
>> cycles (CUDA) render much much FASTER (x5 ) on preview viewport compared
>> to the final rendering viewport ( with of course the same window size
>> preview/rendering and the same level of samples for preview and render).
>> What is the explantion beacause i don't notice quality differences...
>> It happens on all of my computers ( CUDA + win 64 + GTX470 + nvidia
>> drivers 285.62), with every blender version (2.60, 2.61...)
>>
>> Is it a way to make the final outpout as fast as the preview one ? it
>> would be great !!
>>
>> Thank you per advance for your responses.
>>
>>
>>
>> *
>> *
>>
>>
>>
>>
>>
>>
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>>     
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