Glass Beads craft(Tonbodama) is made of glass beads. Wrapped around melted rod-shaped glass on the core rod. It is a typical molding techniques. Make two marble pattern using that technique by POV-Ray. First, put on another color line on the based glass ball, then like vortex pattern is created. Second, Wrapped around over two colors melted rod-shaped glass on the core rod, then layer and vortex like tree rings is created. I focused on the transparency and the two types of techniques. I have set the goal that looks like a real representation. It assumed it as the simulation tool which beginners use.