I wanted the character to hold a bubble gun. Because vr is boring if nothing happens.
Creating the texture for the bubble was pretty hard…
I wanted to use a crater, 3D texture and a ramp, but somehow it was impossible to render this. It turned black all the time. I found the problem and it should be rendered in Arnold or with mental ray. Arnold doesn’t support transparent textures. Mental ray shouldn’t be a problem… unless you have the new maya and are unable to downgrade -_- So no mental ray or Arnold for me.

I ended up creating the texture the easy way. Get a texture from a soap bubble, add it to a blinn and give it some opacity.