I sold my star like that and went to the 3 layer RGB stare from Christmas Light Show. I used just 3 AC channels and modeled it as 3 separate stars and put them on the layout close together. In my opinion the layout is only to give you an approximation of the show and to give you visual feedback that the lights are going on and off at the right time. Trying to get 3D stuff to look realistic is an exercise in futility, IMHO. The layout is for you and your audience is not going to see it. You model it as 6 straight lines and get what you need out of it to assist you in sequencing.