haha, cool ...had to give that a quick try - thx Alexandre Devaux - nice idea! ;-)

@AlexandreDevaux Nice idea Florian😍

@AlexandreDevaux ...idea was acutally Alexandre's ;-)

Waoo!!! Insane :) Something I did in test that add realism is to have a fake small light on the side to give more depth on the sphere, feel free to use the normals!

actually i used only vNormal here (directly as view-dir into the scene). guess the real sphere would not have much specularity or the like, especially when lighted. hmm, but not sure... maybe light intensity could even be slightly higher on the borders?!