Rim lighting in glass sphere? light inside doesnt work? I am trying to achieve this effect with my smooth shaded spheres, but if the sphere had the glossiness of glass with something inside it: https://dribbble.com/shots/3889660-Siri-assistant-AR-Hologram

I have my spheres with a low IOR for a weird bulging effect, and put emissive objects inside. I need to achieve (just on the rim really) that emissive colored look, to differentiate the sphere from the environment. 

So I put a point light inside, but no matter the brightness nothing looks different  aside from maybe that white reflection there:



How can I achieve an emissive glow around the outer rim?
I think what you are trying to do makes no sense (to me) from a physical point of view (Fresnel equations), so I would use a node setup to "fake it". 

The texture you plug into the color input of the emssion should resemble the texture of the emission object inside (I used a noise texture for demonstration purposes).