Hi,

Just switched over to Maya 2017 and started playing around with the Arnold Renderer. Absolutely loving it so far, however I seem to be having a problem creating glass with correct transparency. I am quite confident that my material is set up correctly, I have also unchecked the Opaque option for the mesh I want to see through.

My initial reaction was that perhaps I am using too much reflection, however turning it down does not solve anything.

The material in the Hypershade is looking correct.




Unchecked Opaque option for mesh.



I have set up a red box as a test object to more clearly see the transparency issue.



Transparency not looking correct. It only reflects the backside of the room. You can also see that I am having the exact same issue with the windows on the left hand side. They are letting light pass through, however I can't see the SkyShader outside.



Here is an example where I have disabled the visibility of the window plane - the background outside is clearly there - however for some reason I cannot see it through the glass.



Is there anything I need to do differently when modelling for the Arnold Renderer? Or perhaps a setting in the Render Options that I am not aware of?

Apologies if this has been asked before, I couldn't find anything relating to the exact problem I am experiencing. The tutorials I have watched online seem to create glass in the same way without any issues, so I am at a loss trying to figure out what it is.

I am running Maya 2017 on Win8.1 64 bit with an i7 4790 and GTX745. Let me know if you need any other information.


Thank you!