Zhihu Youtube Twitter Mastodon Rss
HOME
SOFTWARE
DOCS

  • FidelityFX SDK
    FidelityFX SDK

    • AMD FidelityFX SDK documentation

    Manuals home

  • FidelityFX SDK
    FidelityFX SDK

    • FidelityFX SPD

    FidelityFX Single Pass Downsampler 2.0 GPU documentation.

    Functions

    Return type

    Description

    FFX_STATIC void
    ffxSpdSetup ( FfxUInt32x2 dispatchThreadGroupCountXY, FfxUInt32x2 workGroupOffset, FfxUInt32x2 numWorkGroupsAndMips, FfxUInt32x4 rectInfo, FfxInt32 mips )
    Setup required constant values for SPD (CPU).

    FFX_STATIC void
    ffxSpdSetup ( FfxUInt32x2 dispatchThreadGroupCountXY, FfxUInt32x2 workGroupOffset, FfxUInt32x2 numWorkGroupsAndMips, FfxUInt32x4 rectInfo )
    Setup required constant values for SPD (CPU).

    Detailed description

    FidelityFX Single Pass Downsampler 2.0 GPU documentation.

    Global functions

    ffxSpdSetup

    Copied!

    FFX_STATIC  void ffxSpdSetup (
    FfxUInt32x2  dispatchThreadGroupCountXY,
    FfxUInt32x2  workGroupOffset,
    FfxUInt32x2  numWorkGroupsAndMips,
    FfxUInt32x4  rectInfo,
    FfxInt32  mips
)

    Setup required constant values for SPD (CPU).

    Parameters:

    dispatchThreadGroupCountXY

    CPU side: dispatch thread group count xy. z is number of slices of the input texture

    workGroupOffset

    GPU side: pass in as constant

    numWorkGroupsAndMips

    GPU side: pass in as constant

    rectInfo

    left, top, width, height

    mips

    optional: if -1, calculate based on rect width and height

    ffxSpdSetup

    Copied!

    FFX_STATIC  void ffxSpdSetup (
    FfxUInt32x2  dispatchThreadGroupCountXY,
    FfxUInt32x2  workGroupOffset,
    FfxUInt32x2  numWorkGroupsAndMips,
    FfxUInt32x4  rectInfo
)

    Setup required constant values for SPD (CPU).

    Parameters:

    dispatchThreadGroupCountXY

    CPU side: dispatch thread group count xy. z is number of slices of the input texture

    workGroupOffset

    GPU side: pass in as constant

    numWorkGroupsAndMips

    GPU side: pass in as constant

    rectInfo

    left, top, width, height

    Related pages

    • Visit the FidelityFX SDK product page for download links and more information.

    Looking for more documentation on GPUOpen?

    AMD GPUOpen software blogs

    Our handy software release blogs will help you make good use of our tools, SDKs, and effects, as well as sharing the latest features with new releases.

    GPUOpen Manuals

    Don’t miss our manual documentation! And if slide decks are what you’re after, you’ll find 100+ of our finest presentations here.

    AMD GPUOpen Performance Guides

    The home of great performance and optimization advice for AMD RDNA™ 2 GPUs, AMD Ryzen™ CPUs, and so much more.

    Getting started: AMD GPUOpen software

    New or fairly new to AMD’s tools, libraries, and effects? This is the best place to get started on GPUOpen!

    AMD GPUOpen Getting Started Development and Performance

    Looking for tips on getting started with developing and/or optimizing your game, whether on AMD hardware or generally? We’ve got you covered!

    AMD GPUOpen Technical blogs

    Browse our technical blogs, and find valuable advice on developing with AMD hardware, ray tracing, Vulkan®, DirectX®, Unreal Engine, and lots more.

    Find out more about our software!

    AMD GPUOpen Effects - AMD FidelityFX technologies

    Create wonder. No black boxes. Meet the AMD FidelityFX SDK!

    AMD GPUOpen Samples

    Browse all our useful samples. Perfect for when you’re needing to get started, want to integrate one of our libraries, and much more.

    AMD GPUOpen developer SDKs

    Discover what our SDK technologies can offer you. Query hardware or software, manage memory, create rendering applications or machine learning, and much more!

    AMD GPUOpen Developer Tools

    Analyze, Optimize, Profile, Benchmark. We provide you with the developer tools you need to make sure your game is the best it can be!