LiteFX::Rendering::IGraphicsDevice::computeAccelerationStructureSizes

computeAccelerationStructureSizes overloads

Synopses

Declared in <litefx/rendering_api.hpp>

Computes the required amount of device memory for an IBottomLevelAccelerationStructure.

[[dllimport, dllexport]] void computeAccelerationStructureSizes(
    IBottomLevelAccelerationStructure const& blas,
    UInt64& bufferSize,
    UInt64& scratchSize,
    bool forUpdate = false) const;

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Computes the required amount of device memory for an ITopLevelAccelerationStructure.

[[dllimport, dllexport]] void computeAccelerationStructureSizes(
    ITopLevelAccelerationStructure const& tlas,
    UInt64& bufferSize,
    UInt64& scratchSize,
    bool forUpdate = false) const;

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Parameters

Name	Description
blas	The bottom-level acceleration structure to compute the memory requirements for.
bufferSize	The size of the acceleration structure buffer.
scratchSize	The size of the scratch memory buffer.
forUpdate	If set to true, scratchSize will contain the amount of scratch memory required for an update.
tlas	The top-level acceleration structure to compute the memory requirements for.