protected override void InitializeInternal()
{
// todo: make sure the texture has actually loaded successfully - note that it may not be loading from a regular file, so we can't rely on FileNotFoundException bubbling up; wrap it in a local exception
using (var stream = _fileSource.OpenRead())
ShaderResourceView = ShaderResourceView.FromStream(DeviceManager.Device, stream, _fileSource.Size);
_descr = ShaderResourceView.ResourceAs <Texture2D>().Description;
}
