Sky Shader Object:

sky4dSky model – This parameter sets the sky model that is used in the render.. Rawa-fake – This is a fake (non-physical) sky model, which allows for easier customization (the Zenith color,Sky Balls 3D is an exhilarating two-player casual sports game where you test your reactions and reflexes by guiding a ball on a narrow track thousands of meters in the sky,