/// <summary>
/// Performs an occlusion query on this scene.
/// </summary>
/// <param name="ray">The ray structure to use.</param>
public unsafe void Occlusion(RayStruct1 *ray)
{
#if DEBUG
CheckDisposed();
if (!AlgorithmFlags.HasFlag(AlgorithmFlags.Intersect1))
{
throw new InvalidOperationException("AlgorithmFlags.Intersect1 not set.");
}
#endif
RTC.Occluded(NativePtr, ray);
}