iOS prints VK_ERROR_FEATURE_NOT_PRESENT: vkCmdDrawIndexed():


This topic contains 2 replies, has 2 voices, and was last updated by  necktwi 1 year, 11 months ago.

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  • #1176

    necktwi
    Participant

    When I tried running hologram example on my iPhone 5s(iOS 10.2), Xcode keeps printing
    [***MoltenVK ERROR***] VK_ERROR_FEATURE_NOT_PRESENT: vkCmdDrawIndexed(): The current device does not support drawing with a non-zero base vertex.

    The kettles don’t look like they are kettles. zig-zagged edges and low frame rate.

    #1177

    Bill Hollings
    Keymaster

    @necktwi

    As the error suggests, the Metal device that you are using does not support drawing with a non-zero vertex or instance base, which is used by the Hologram demo.

    You require an A9X GPU (iOS_GPUFamily3_v1), or OS X/macOS (OSX_GPUFamily1_v1) to support that feature.

    In your app, you can determine the availability of this feature by calling the vkGetPhysicalDeviceMetalFeaturesMVK() function as defined in vk_mvk_moltenvk.h.

    …Bill

    #1179

    necktwi
    Participant

    I hope Molten makes me forget about Metal in near future. It is its purpose right?

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