Class MeshDecimate

Progressive mesh decimation implementation using edge collapse algorithm. Reduces mesh complexity while preserving overall shape and texture coordinates.

Inheritance

object

MeshDecimate

Namespace: NWH.DWP2.MeshDecimation

Assembly: NWH.DWP2.dll

Syntax

public class MeshDecimate

Fields

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bRecalculateNormals

Whether to recalculate smooth normals after decimation.

Declaration

public bool bRecalculateNormals

Field Value

Type	Description
bool

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finalNormals

Final vertex normals after decimation.

Declaration

public Vector3[] finalNormals

Field Value

Type	Description
Vector3[]

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finalTriangles

Final triangle indices after decimation.

Declaration

public int[] finalTriangles

Field Value

Type	Description
int[]

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finalUVs

Final texture coordinates after decimation.

Declaration

public Vector2[] finalUVs

Field Value

Type	Description
Vector2[]

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finalVertices

Final vertex positions after decimation.

Declaration

public Vector3[] finalVertices

Field Value

Type	Description
Vector3[]

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lastTarget

Last target vertex count from progressive mesh operation.

Declaration

public int lastTarget

Field Value

Type	Description
int

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lockSelPoint

Whether to lock selected vertices from being collapsed.

Declaration

public bool lockSelPoint

Field Value

Type	Description
bool

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lodDataSize

Size in bytes of LOD history data for progressive mesh.

Declaration

public float lodDataSize

Field Value

Type	Description
float

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preCalculateDone

Whether pre-calculation of decimation data has been completed.

Declaration

public bool preCalculateDone

Field Value

Type	Description
bool

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ratio

Target ratio of vertices to keep (0.0 to 1.0).

Declaration

public float ratio

Field Value

Type	Description
float

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selectedVertices

List of vertices marked as selected (protected from collapse if locked).

Declaration

public List<Vector3> selectedVertices

Field Value

Type	Description
List<Vector3>

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smoothAngle

Smoothing angle threshold in degrees for normal calculation.

Declaration

public float smoothAngle

Field Value

Type	Description
float

Methods

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Calculate(Mesh)

Calculates the decimated mesh at the current ratio. Applies progressive mesh simplification and outputs final geometry arrays. PreCalculate must be called first.

Declaration

public void Calculate(Mesh tmpMesh)

Parameters

Type	Name	Description
Mesh	tmpMesh	Mesh reference (used for validation).

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PreCalculate(Mesh)

Pre-calculates all edge collapse operations and builds the progressive mesh history. Must be called once before Calculate can be used.

Declaration

public void PreCalculate(Mesh tmpMesh)

Parameters

Type	Name	Description
Mesh	tmpMesh	Input mesh to decimate.