public D3D11Texture(Texture2D existingTexture)
{
DeviceTexture = existingTexture;
Width = (uint)existingTexture.Description.Width;
Height = (uint)existingTexture.Description.Height;
Depth = 1;
MipLevels = (uint)existingTexture.Description.MipLevels;
ArrayLayers = (uint)existingTexture.Description.ArraySize;
Format = D3D11Formats.ToVdFormat(existingTexture.Description.Format);
SampleCount = D3D11Formats.ToVdSampleCount(existingTexture.Description.SampleDescription);
}