private IImageFunction getImageFunction(IRayScene sc, int width, int height)
{
IImageFunction imf = FormSupport.getImageFunction(sc);
imf.Width = width;
imf.Height = height;
RayTracing rt = imf as RayTracing;
if (rt != null)
{
rt.DoShadows = checkShadows.Checked;
rt.DoReflections = checkReflections.Checked;
rt.DoRefractions = checkRefractions.Checked;
}
return(imf);
}