Struct AccelerationStructureInstance

This data structure is used in GPU memory during acceleration structure build. This struct definition is useful if generating instance data on the CPU first then uploading to the GPU. But apps are also free to generate instance descriptions directly into GPU memory from compute shaders for instance, following the same layout.

Inherited Members

ValueType.Equals(object)

ValueType.GetHashCode()

ValueType.ToString()

object.Equals(object, object)

object.GetType()

object.ReferenceEquals(object, object)

Namespace: Evergine.Common.Graphics.Raytracing

Assembly: Evergine.Common.dll

Syntax

public struct AccelerationStructureInstance

Fields

BottonLevel

the bottom-level acceleration structure that is being instanced.

Declaration

public BottomLevelAS BottonLevel

Field Value

Type	Description
BottomLevelAS

Flags

Flags from AccelerationStructureInstanceFlags to apply to the instance.

Declaration

public AccelerationStructureInstanceFlags Flags

Field Value

Type	Description
AccelerationStructureInstanceFlags

InstanceContributionToHitGroupIndex

Per-instance contribution to add into shader table indexing to select the hit group to use. It is the offset of the instance inside the sahder-binding-table.

Declaration

public uint InstanceContributionToHitGroupIndex

Field Value

Type	Description
uint

InstanceID

An arbitrary 24-bit value that can be accessed via InstanceID() in shader.

Declaration

public uint InstanceID

Field Value

Type	Description
uint

InstanceMask

An 8-bit mask assigned to the instance, which can be used to include/reject groups of instances on a per-ray basis.

Declaration

public byte InstanceMask

Field Value

Type	Description
byte

Transform4x4

A 4x4 transform matrix in row major layout representing the instance-to-world transformation.

Declaration

public Matrix4x4 Transform4x4

Field Value

Type	Description
Matrix4x4

Extension Methods

ReflectionHelper.GetMemberAssembly(object)

ReflectionHelper.GetTypeName(object)