Interface IBlendShapeKey

Represents a TriLib blend shape key (a single blend shape target/frame), including delta attributes and an optional mapping to the base geometry.

Inherited Members
Namespace: TriLibCore.Interfaces
Assembly: TriLibCore.Source.dll
Syntax
public interface IBlendShapeKey : IObject

Properties

FrameWeight

Gets or sets the weight of this blend shape frame, as used by Unity when adding the frame.

Declaration
float FrameWeight { get; set; }
Property Value
Type Description
float

FullGeometryShape

Gets or sets a value indicating whether this blend shape provides data for the full geometry (i.e., deltas exist for all vertices and no index mapping is required).

Declaration
bool FullGeometryShape { get; set; }
Property Value
Type Description
bool
Remarks

When true, consumers may ignore IndexMap and treat delta arrays as aligned with the base geometry vertex order.

IndexMap

Gets or sets a mapping where the key is the original vertex index (from the base mesh) and the value is the index into the blend shape delta arrays (Vertices, Normals, Tangents).

Declaration
Dictionary<int, int> IndexMap { get; set; }
Property Value
Type Description
Dictionary<int, int>
Remarks

This mapping is used when the blend shape does not provide deltas for every vertex. When FullGeometryShape is true, this mapping may be unused.

Normals

Gets or sets the delta normals for this blend shape key.

Declaration
List<Vector3> Normals { get; set; }
Property Value
Type Description
List<Vector3>
Remarks

When not provided, normals may be calculated depending on importer options. When FullGeometryShape is false, the indices are addressed through IndexMap.

Tangents

Gets or sets the delta tangents for this blend shape key.

Declaration
List<Vector3> Tangents { get; set; }
Property Value
Type Description
List<Vector3>
Remarks

When not provided, tangents may be calculated depending on importer options. When FullGeometryShape is false, the indices are addressed through IndexMap.

Vertices

Gets or sets the delta vertex positions for this blend shape key.

Declaration
List<Vector3> Vertices { get; set; }
Property Value
Type Description
List<Vector3>
Remarks

Each entry represents the positional delta to be applied to the base mesh vertex. When FullGeometryShape is false, the indices are addressed through IndexMap.

Extension Methods