What does OpenCL do and how do I use it in Capture One?

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6 comments

  • Nicolas Det

    Hello,

    Using MacOS 10.13.6 on MBP 2012 i7 13 Zoll, since CaptureOne Pro 20.1 (13.1.0.172) GPU acceleration does not work anymore.

    I applied this guide but did not help.. Any fix ?

    Export is a lot of slower using CPU.. Display slower too.

    Regards

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  • Paul O.

    Hello,

    I recommend to deactivate this option on computers with onboard graphics.

    On my computer  (Intel core i5 9500, Intel UHD630, CaptureOne 20 / 13.1.0.162) this option is active by default, it works without problems (jpeg export: 100% GPU Load, 40% CPU load), but slows down the process - CPU only performance is almost twice faster.

    Maybe a future update can provide some kind of Auto / Never / Best performance setting

    Regards

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  • Nicolas Det

    Hi!

    On my system, the GPU is about as fast as the CPU. So I do prefer to use the GPU as it freed the CPU to achieve other tasks.

     

    Regards

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  • Filip Van Wulpen

    Hi Capture One,

    I have a quite recent professional grade graphics card (Radeon Pro W5500) with a decent CPU (AMD Ryzen 3700X). Installation of Capture One is flawless as well as initialization of hardware acceleration. Preferences indicate hardware acceleration is being used. Also the recommended check using the Focus Mask confirms everything is fine.

    But when making adjustments by dragging a slider I get strange artefacts (looks like clipping of colors). I already tried the suggested approaches like clearing ImageCore folder, but without success.

    Any help is appreciated.

    Regards

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  • FirstName LastName

    Dear Lily, I'm using CaptureOne 13.1.3.13 and NVIDIA GTX 1660Ti but during editing or when I save and process the image, CaptureOne uses only the integrated Intel GPU.

    In the NVIDIA control panel I've forced the use of the NVIDIA GPU for the APP CaptureOne, but still the system uses only the Intel GPU. Currently I'm using Windows 10 ver 2004 build 19041.508

    I've already tried to rebuild the kernel delating the ImageCore but without any sucess. However in the log file of captureone I've found this error:

    2020-10-20 01:11:03.094> (ERROR) bin file failed parse [C:\Users\Archimede\AppData\Local\CaptureOne\ImageCore\13.1.3.13\ICOCL.bin] (verificationCode=2)
    2020-10-20 01:11:03.094> (ERROR) bin file failed parse [C:\Users\Archimede\AppData\Local\CaptureOne\ImageCore\13.1.3.13\ICOCL1.bin] (verificationCode=2)

    And for some reason the Intel GPU is the device zero, instead of NVIDIA:

    Found 1 OpenCL devices on platform 0 (Intel(R) OpenCL)

    Found 1 OpenCL devices on platform 1 (NVIDIA CUDA)

    OpenCL Device 0 : Intel(R) UHD Graphics 630

    OpenCL Device 1 : GeForce GTX 1660 Ti

    Please help me to have a good performance when using captureone.

    Thanks.

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  • Lily

    Hi,

    Thank you for the details provided.

    I see that you have also submitted a similar request, so please follow the troubleshooting steps provided by the Support Team.

    Also, it would be helpful if you send logs in the request #58882.

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