public override bool canDraw(Triangle3D obj) // wypelniony
 {
     return(obj.GetTransparencyLevel() == 0);
 }
 public override bool canDraw(Triangle3D obj) // wypelniony
 {
     return(obj.GetColorspace() == Colorspace.RGB || obj.GetColorspace() == Colorspace.Default);
 }
 public abstract bool canDraw(Triangle3D obj);
 public override bool canDraw(Triangle3D obj) // wypelniony
 {
     return(false);
 }