A Unity implementation of the Bubble Shader paper found in the book
ShaderX : Vertex and Pixel Shader Tips and Tricks.
You can find the original paper inside the repo.
I should have all the other papers in another repository. They're great, you should take a look. EDIT: none are up yet
Cubemaps and rainbow map were extracted from the PDF. Using legacy cubemaps for the time being. Feel free to make a texture out of it.
This repo includes a surface shader that mimics the effect of a Soap Bubble.
To use it, apply it to a sphere or whatever mesh you want.
You can play around with the Fresnel settings in order to achieve the best look for your bubbles. eheh
Currently, there's a weird problem with Fresnel Term calculation, most likely because of the arrangement of the normals of the sphere.
Will have to try with a different mesh when i have the time.
But hey, it works fine if you only view it from a certain angle!