Chaos Corona for Cinema 4D > [C4D] I need help!

Ask for help with reflection problem of glass material

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15845646656@163.com:
I have a problem when rendering the glass material. The refraction of the glass material seems to be incorrect, and there will be some uncontrollable bending and light and shadow in the refraction. Why do you ask for help

burnin:
Hello & Welcome!

Care to make it easier to help you and provide a scene with a reference image? 
Since issue can be anything from bad geo, lighting, materials...

15845646656@163.com:

--- Quote from: burnin on 2022-12-04, 19:16:56 ---Hello & Welcome!

Care to make it easier to help you and provide a scene with a reference image? 
Since issue can be anything from bad geo, lighting, materials...

--- End quote ---

Thanks for your help

burnin:
What about your visual reference? What should it look like?

romullus:
Check if bottom of the glass doesn't touch ground plane. It should float slightly above the ground, otherwise there's a risk to run in z-fighting, which leads to visual artifacts similar to that in your attached picture.

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