A Bubble

I’m interesting in doing something like a bubble. The problem is that I don´t Know how to do a good transparence effect.

If someone knows any form to do this?

I’ve tried with blending, but the results haven’t been very good.


Try this…, there is a bubble there


One way is to modulate the opacity with the magnitude of the specular component…

Thanks for all.

I’ll try to do it.