Hi, all !

While rendering large number of images on server with photon mapping
techniques I discovered, that only 8 kernels are used in time of
photons calculation step, while on tracing step all 40 kernels are
loaded.

Is there a way to use more threads for photon calculation to improve
performance ?

Thanks in advance.
--
YB.

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Le 2024-05-06 à 07:54, yesbird a écrit :
> Hi, all !
> 
> While rendering large number of images on server with photon mapping
> techniques I discovered, that only 8 kernels are used in time of
> photons calculation step, while on tracing step all 40 kernels are
> loaded.
> 
> Is there a way to use more threads for photon calculation to improve
> performance ?
> 
> Thanks in advance.
> -- 
> YB.
> 
> 
> 
> 
> 
So, you have one light and 8 target objects, or 2 lights and 4 target 
objects, or 4 lights and 2 target objects or 8 lights and 1 target object.

The maximum number of threads used while photon mapping is the product 
of the number of light_source by the number of objects with a target block.
To the best of my knowledge : Currently, it is not possible to divide 
that process between several threads. The algorithm used is strictly 
linear and can't get split between multiple threads.

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On 06/05/2024 18:05, Alain Martel wrote:
> To the best of my knowledge : Currently, it is not possible to divide 
> that process between several threads. The algorithm used is strictly 
> linear and can't get split between multiple threads.

Thanks, Alan, I will take it into account.
--
YB

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