Hi everyone.
I’m trying to create a glass render but having these dark parts on the edge of the bottle. What can I do to remove those dark lines?
That often happens when internal reflections reaches its limit. Try to increase Total, Glossy, and Transmission bounces to 64 or higher. Also make sure there is an actual environment for the material to react to. Hard to say from the image.
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Seems the problem was with the environment.
I placed the whole composition inside a very large cube and increased the total bounces. And it fixed the issue. Thanks!!