Ray Tracing with GPU

  • 22 August 2020
  • 4 replies

Is there a way to accelerate ray tracing using Nvidia- GPU ?


Best answer by Allie 4 August 2021, 18:47

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4 replies

Userlevel 7
Badge +2

Hi Aditya,

If your question relates to OpticStudio, then the answer is no for raytracing, to the best of my knowledge. However, if you are talking about the raytracing problem in general, its a different story. In my opinion, I think raytracing can be parallelized using GPU, and depending on the number of rays to be traced there might be a significant speed improvement.

Hope this helps.

Take care,


Userlevel 6
Badge +2

Hi Aditya and David,

OpticStudio does not have GPU ray tracing built in, but other customers have been able to utilize CUDA for large ray traces. In fact, we have a webinar on this here:

In the webinar, the OpticStudio ray trace and the CUDA ray trace are performed separately, but they show it is possible to link the two processes. 

Userlevel 7
Badge +2

Hi Allie,


This sounds intresting, it sounds like a kind of hybrid way of splitting the work across the GPUs.

Thanks for sharing this resource.

Take care,



Userlevel 1

Does zemax have any plans to update opticstudio to include natively utilizing graphics cards in the future?