Bubbles with Arnold. Nurbs and the "opaque" value.


#1

Hi, everyone!!! First thing first: sorry for my English :rolleyes:!
I would really need an explanation… I’m new with Arnold and I’m a little bit confused about the “opaque” parameter.
I downloaded a bubble shader from https://support.solidangle.com/display/AFMUG/Iridescent+Soap+Bubble+Shader and I tried to use it. It looks great but what really confuses me is that I can see through the bubble no matter if the opaque parameter is enabled or disabled. If I put an object inside the bubble I can see it too!

Maybe this can be possible beacuse the bubbles are nurbs…
Can someone help me undestand this?

Thank you!!!