/// <summary>
/// Creates a new <see cref="VertexUnit"/>.
/// </summary>
/// <param name="format">The <see cref="VertexFormat"/> of the new format.</param>
public VertexUnit Clone(VertexFormat format)
{
VertexUnit unit = new VertexUnit(format, size);
for (int i = 0; i < format.Size; i++)
{
IGraphicsStream stream = unit[i];
if (this.format.Contains(stream.GetType(), format.GetUsageIndex(i)))
{
IGraphicsStream from = this[stream.GetType(), format.GetUsageIndex(i)];
Array.Copy(from.Data, stream.Data, from.Size);
}
}
return(unit);
}
/// <summary>
/// Changes the format of the <see cref="VertexUnit"/> to fit the given
/// semantics.
/// </summary>
/// <param name="semantics">Semantics to fit.</param>
public void ChangeFormat(Semantic[] semantics)
{
VertexFormat newFormat = format.Clone(semantics);
IVertexStream[] newStreams = new IVertexStream[semantics.Length];
for (int i = 0; i < newFormat.Size; i++)
{
int index = format.GetIndex(newFormat.GetType(i), newFormat.GetUsageIndex(i));
newStreams[i] = this[index];
}
this.vertexStreams = newStreams;
format = newFormat;
}
