public BlendShape ToBlendShape()
{
var shapeFrames = new BlendShapeFrame[frames.Length];
for (int i = 0; i < shapeFrames.Length; i++)
{
shapeFrames[i] = frames[i].ToBlendShapeFrame();
}
return(new BlendShape(shapeName, shapeFrames));
}
/// <summary>
/// Returns the blend shapes of a mesh.
/// </summary>
/// <param name="mesh">The mesh.</param>
/// <returns>The mesh blend shapes.</returns>
public static BlendShape[] GetMeshBlendShapes(Mesh mesh)
{
if (mesh == null)
{
throw new ArgumentNullException(nameof(mesh));
}
int vertexCount = mesh.vertexCount;
int blendShapeCount = mesh.blendShapeCount;
if (blendShapeCount == 0)
{
return(null);
}
var blendShapes = new BlendShape[blendShapeCount];
for (int blendShapeIndex = 0; blendShapeIndex < blendShapeCount; blendShapeIndex++)
{
string shapeName = mesh.GetBlendShapeName(blendShapeIndex);
int frameCount = mesh.GetBlendShapeFrameCount(blendShapeIndex);
var frames = new BlendShapeFrame[frameCount];
for (int frameIndex = 0; frameIndex < frameCount; frameIndex++)
{
float frameWeight = mesh.GetBlendShapeFrameWeight(blendShapeIndex, frameIndex);
var deltaVertices = new Vector3[vertexCount];
var deltaNormals = new Vector3[vertexCount];
var deltaTangents = new Vector3[vertexCount];
mesh.GetBlendShapeFrameVertices(blendShapeIndex, frameIndex, deltaVertices, deltaNormals, deltaTangents);
frames[frameIndex] = new BlendShapeFrame(frameWeight, deltaVertices, deltaNormals, deltaTangents);
}
blendShapes[blendShapeIndex] = new BlendShape(shapeName, frames);
}
return(blendShapes);
}