Xandi, I have done some test and it seems that the textures for those glass objects are simply too dark. This test shows what I mean:

Click image for full size.

This was done by setting the innermaterial called Liquid to Null and the gain for the trasmission texture to 8. I also set the glass material to Hyper-realistic. My suggestion is to load the textures in Photoshop and adjust the levels so that it's not so dark. The best option would be to email DT and ask for a Reality version of the textures.

Best.

Paolo

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