ABSTRACT

Physically based visualization of foams improves our knowledge of optical systems. As long as the light transport mechanisms for light scattering in foams are understood, some interesting patterns observed can be connected with some concepts involving hyperbolic geometry, and this study mainly involves the classical scattering of light in foams and geometrical optics. This scattering system is an open system, in which the trajectories of light are not confined to a bound region [1]. The trajectories can leave the foam and eventually escape to infinity, as it is shown in Figure 28.1. Some transformations of the image of a square grid behind a foam. The triangles are elements of foams known as Plateau borders. We can observe some contractions and transformations showing that the foam can act as a refractive system. https://s3-euw1-ap-pe-df-pch-content-public-u.s3.eu-west-1.amazonaws.com/9781315374109/356f9d63-55e3-411c-acbc-de6b560bf29a/content/fig28_1_OB.tif"/>