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    Home » Manuals » FidelityFX SDK » Reference documentation » Samples » Cauldron » Render » class BLAS

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  • FidelityFX SDK
    FidelityFX SDK

    • class BLAS

    The FidelityFX Cauldron Framework api/platform-agnostic representation of the Bottom Level Acceleration Structure.

    File location: framework/cauldron/framework/inc/render/rtresources.h

    Methods

    Return type

    Description

    static BLAS*
    CreateBLAS ()
    BLAS instance creation function. Implemented per api/platform to return the correct internal resource type.

    const Buffer *
    GetBuffer () const
    Returns the backing “Buffer“ resource.

    void
    AddGeometry ( const Mesh * pMesh, const std::vector<VertexBufferInformation >& vertexPositions ) = 0
    Adds a mesh to the BLAS instance.

    void
    InitBufferResources () = 0
    Initializes BLAS buffer resources.

    void
    Build (CommandList * pCmdList) = 0
    Builds the bottom level acceleration structure.

    Detailed description

    The FidelityFX Cauldron Framework api/platform-agnostic representation of the Bottom Level Acceleration Structure. Only created when “BuildRayTracingAccelerationStructure” config is set to true.

    Methods

    CreateBLAS

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    static BLAS* CreateBLAS ()

    BLAS instance creation function. Implemented per api/platform to return the correct internal resource type.

    GetBuffer

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    const Buffer * GetBuffer () const

    Returns the backing Buffer resource.

    AddGeometry

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    virtual void AddGeometry (
    const Mesh * pMesh,
    const std::vector<VertexBufferInformation >& vertexPositions
) = 0

    Adds a mesh to the BLAS instance.

    InitBufferResources

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    virtual void InitBufferResources () = 0

    Initializes BLAS buffer resources.

    Build

    Copied!

    virtual void Build (CommandList * pCmdList) = 0

    Builds the bottom level acceleration structure.

    Related pages

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

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