EngineCore::MeshGeometryData Struct Reference

Shared geometry metadata - one per unique MeshAsset primitive. Allows multiple instances to reference the same geometry data. More...

#include <RenderData.h>

Public Attributes
uint32_t	meshletStartIndex
	First meshlet in shared meshlet buffer.
uint32_t	meshletCount
	Number of meshlets for this geometry.
uint32_t	pipelineIndex
	Material pipeline index.
uint32_t	singleMeshletGeoIndex
	Index into SingleMeshletGeometryData (0xFFFFFFFF if multi-meshlet)
uint32_t	clusterStartIndex
	First ClusterLodData (0xFFFFFFFF if no LOD)
uint32_t	clusterCount
	Total clusters (all LOD levels)
uint32_t	groupStartIndex
	First ClusterGroupData.
uint32_t	groupCount
	Total groups in LOD hierarchy.

Detailed Description

Shared geometry metadata - one per unique MeshAsset primitive. Allows multiple instances to reference the same geometry data.

Extended with LOD cluster data for Nanite-style per-cluster LOD selection.

Layout matches GLSL std430 MeshGeometryData struct (32 bytes).

Date

2026-01-17

Author

Konstantin Passig

Definition at line 260 of file RenderData.h.

Member Data Documentation

clusterCount

uint32_t EngineCore::MeshGeometryData::clusterCount

Total clusters (all LOD levels)

Definition at line 268 of file RenderData.h.

Referenced by EngineCore::RenderingDataManager::updatePrimitiveDataInstanced().

clusterStartIndex

uint32_t EngineCore::MeshGeometryData::clusterStartIndex

First ClusterLodData (0xFFFFFFFF if no LOD)

Definition at line 267 of file RenderData.h.

Referenced by EngineCore::RenderingDataManager::updatePrimitiveDataInstanced().

groupCount

uint32_t EngineCore::MeshGeometryData::groupCount

Total groups in LOD hierarchy.

Definition at line 270 of file RenderData.h.

Referenced by EngineCore::RenderingDataManager::updatePrimitiveDataInstanced().

groupStartIndex

uint32_t EngineCore::MeshGeometryData::groupStartIndex

First ClusterGroupData.

Definition at line 269 of file RenderData.h.

Referenced by EngineCore::RenderingDataManager::updatePrimitiveDataInstanced().

meshletCount

uint32_t EngineCore::MeshGeometryData::meshletCount

Number of meshlets for this geometry.

Definition at line 263 of file RenderData.h.

Referenced by EngineCore::RenderingDataManager::updatePrimitiveDataInstanced().

meshletStartIndex

uint32_t EngineCore::MeshGeometryData::meshletStartIndex

First meshlet in shared meshlet buffer.

Definition at line 262 of file RenderData.h.

Referenced by EngineCore::RenderingDataManager::updatePrimitiveDataInstanced().

pipelineIndex

uint32_t EngineCore::MeshGeometryData::pipelineIndex

Material pipeline index.

Definition at line 264 of file RenderData.h.

Referenced by EngineCore::RenderingDataManager::updatePrimitiveDataInstanced().

singleMeshletGeoIndex

uint32_t EngineCore::MeshGeometryData::singleMeshletGeoIndex

Index into SingleMeshletGeometryData (0xFFFFFFFF if multi-meshlet)

Definition at line 265 of file RenderData.h.

Referenced by EngineCore::RenderingDataManager::updatePrimitiveDataInstanced().

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The documentation for this struct was generated from the following file:

• /home/magerbeton/Documents/gl3-vulkan/Engine/include/Engine/Renderer/RenderData.h