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API > API/Runtime > API/Runtime/GeometryFramework > API/Runtime/GeometryFramework/Components
References
| Module | GeometryFramework |
| Header | /Engine/Source/Runtime/GeometryFramework/Public/Components/MeshRenderDecomposition.h |
| Include | #include "Components/MeshRenderDecomposition.h" |
Syntax
class FMeshRenderDecomposition
Remarks
FMeshRenderDecomposition represents a decomposition of a mesh into "chunks" of triangles, with associated materials. This is passed to the rendering components to split a mesh into multiple RenderBuffers, for more efficient updating.
Variables
| Type | Name | Description | |
|---|---|---|---|
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TArray< TUniquePtr< FGroup > > | Groups | |
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TArray< int32 > | TriangleToGroupMap | Mapping from TriangleID to Groups array index. |
Constructors
| Type | Name | Description | |
|---|---|---|---|
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TArray |
||
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Movable. | ||
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FMeshRenderDecomposition
(
const FMeshRenderDecomposition& |
Functions
| Type | Name | Description | |
|---|---|---|---|
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int32 | AppendGroup () |
|
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void | BuildAssociations
(
const FDynamicMesh3* Mesh |
Construct mappings between mesh and groups (eg TriangleToGroupMap) |
  |
void | BuildChunkedDecomposition
(
const FDynamicMesh3* Mesh, |
Build per-material decomposition, and then split each of those into chunks of at most MaxChunkSize (actual chunk sizes will be highly variable and some may be very small...) |
  |
void | BuildMaterialDecomposition
(
const FDynamicMesh3* Mesh, |
Build decomposition with one group for each MaterialID of mesh |
 |
FGroup & | GetGroup
(
int32 Index |
|
  |
const FGroup & | GetGroup
(
int32 Index |
|
  |
int32 | GetGroupForTriangle
(
int32 TriangleID |
|
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void | Initialize
(
int32 Count |
|
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bool | IsGroup
(
int32 Index |
|
  |
int32 | Num () |
Operators
| Type | Name | Description | |
|---|---|---|---|
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FMeshRenderDecomposition & | ||
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FMeshRenderDecomposition & | operator=
(
const FMeshRenderDecomposition& |
Classes
| Type | Name | Description | |
|---|---|---|---|
 |
FGroup |