Real-time generation of CG and sound of liquid with bubble

Recently, we can render real-time CG of liquid which shows various phenomena by global lighting and physical simulation according to the improvement of the computing power. However, the effect sound for real-time CG of liquid should be made corresponding to all the behavior of the liquid beforehand. Therefore, it is difficult for high reproducibility to be made for all sounds by hand. In liquid, the sound is generated according to the change of the radius of the moving bubble. Therefore, making the effect sound of liquid should consider the movement of bubbles.