class TLAS

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

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

Methods

Return type

Description

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

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

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

void
AddInstance ( const BLAS * pBlas, const Mat4 & transform, const uint32_t instanceID ) = 0
Adds a transformed BLAS instance to the TLAS instance.

Detailed description

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

Methods

CreateTLAS

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static TLAS* CreateTLAS ()

TLAS 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.

Build

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virtual void Build (CommandList * pCmdList) = 0

Builds the top level acceleration structure.

AddInstance

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virtual void AddInstance (
    const BLAS * pBlas,
    const Mat4 & transform,
    const uint32_t instanceID
) = 0

Adds a transformed BLAS instance to the TLAS instance.