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    Home » Manuals » FidelityFX SDK » Reference documentation » SDK » GPU » FidelityFX GPU References » FidelityFX Parallel Sort » FfxParallelSortConstants

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  • FidelityFX SDK
    FidelityFX SDK

    • FfxParallelSortConstants

    Constant buffer information needed for the execution of each pass in parallel sort.

    File location: sdk/include/FidelityFX/gpu/parallelsort/ffx_parallelsort.h

    Detailed description

    Constant buffer information needed for the execution of each pass in parallel sort.

    Data fields

    Type

    Description

    FfxUInt32
    numKeys
    The number of keys to sort.

    FfxInt32
    numBlocksPerThreadGroup
    How many blocks of keys each thread group needs to process.

    FfxUInt32
    numThreadGroups
    How many thread groups are being run concurrently for sort.

    FfxUInt32
    numThreadGroupsWithAdditionalBlocks
    How many thread groups need to process additional block data.

    FfxUInt32
    numReduceThreadgroupPerBin
    How many thread groups are summed together for each reduced bin entry.

    FfxUInt32
    numScanValues
    How many values to perform scan prefix (+ add) on.

    FfxUInt32
    shift
    What bits are being sorted (4 bit increments)

    FfxUInt32
    padding
    Padding – unused.

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