/// <summary>
/// Builds the vertex array.
/// </summary>
/// <param name="geometry">The geometry.</param>
/// <returns></returns>
private DefaultVertex[] BuildVertexArray(MeshGeometry3D geometry)
{
//var geometry = this.geometryInternal as MeshGeometry3D;
var positions = geometry.Positions.GetEnumerator();
var vertexCount = geometry.Positions.Count;
var normals = geometry.Normals != null?geometry.Normals.GetEnumerator() : Enumerable.Repeat(Vector3.Zero, vertexCount).GetEnumerator();
var tangents = geometry.Tangents != null?geometry.Tangents.GetEnumerator() : Enumerable.Repeat(Vector3.Zero, vertexCount).GetEnumerator();
var bitangents = geometry.BiTangents != null?geometry.BiTangents.GetEnumerator() : Enumerable.Repeat(Vector3.Zero, vertexCount).GetEnumerator();
var array = ThreadBufferManager <DefaultVertex> .GetBuffer(vertexCount);
for (var i = 0; i < vertexCount; i++)
{
positions.MoveNext();
normals.MoveNext();
tangents.MoveNext();
bitangents.MoveNext();
array[i].Position = new Vector4(positions.Current, 1f);
array[i].Normal = normals.Current;
array[i].Tangent = tangents.Current;
array[i].BiTangent = bitangents.Current;
}
normals.Dispose();
tangents.Dispose();
bitangents.Dispose();
positions.Dispose();
return(array);
}
/// <summary>
/// Called when [build vertex array].
/// </summary>
/// <param name="geometry">The geometry.</param>
/// <returns></returns>
private PointsVertex[] OnBuildVertexArray(Geometry3D geometry)
{
var positions = geometry.Positions;
var vertexCount = geometry.Positions.Count;
var array = ThreadBufferManager <PointsVertex> .GetBuffer(vertexCount);
var colors = geometry.Colors != null?geometry.Colors.GetEnumerator() : Enumerable.Repeat(Color4.White, vertexCount).GetEnumerator();
for (var i = 0; i < vertexCount; i++)
{
colors.MoveNext();
array[i].Position = new Vector4(positions[i], 1f);
array[i].Color = colors.Current;
}
colors.Dispose();
return(array);
}
