enter image description hereenter image description hereenter image description hereenter image description hereHi Blender StackExchange, can you help? I'm currently trying to create glass from a solid object by turning transmission up to 1.0. The rendered image I'm getting is a solid dark grey and not transparent at all. Thank you.

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    $\begingroup$ Welcome to Blender on Stack Exchange. It would be extra helpful if you can upload a sample blend file and/or some screenshots of your material setup to help us solve this. $\endgroup$
    – Moog
    Oct 14, 2019 at 19:57
  • $\begingroup$ Thanks Merlin, screen grab added. Any help gratefully received. $\endgroup$ Oct 16, 2019 at 10:54

1 Answer 1


So "this just works" when rendering with Cycles, but Eevee requires a bit more setup.

Try the following settings:

  1. Render → Screen Space Reflections ON
  2. Render → Screen Space Reflections → Refraction ON
  3. Material → Surface → Principled BSDF → Transmission 1.000
  4. Material → Surface → Principled BSDF → Roughness [Cycles Only]
  5. Material → Settings → Blend Mode OPAQUE [or ADDITIVE]
  6. Material → Settings → Screen Space Refraction ON
  7. Material → Settings → Refraction Depth PLAY WITH IT

You can also check out the documentation for:

You should get something like this in Render Mode, I didn't have the patience to model a teacup, so the default cube is all you get :)

enter image description here

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    $\begingroup$ Thanks Merlin, it certainly looks better but it's still pretty weird. Is there a way I can share another screen grab with this response on StackExchange do you know? $\endgroup$ Oct 16, 2019 at 12:01
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    $\begingroup$ I am in lock dev mode, as it looks so much better than render mode. See new edit above. $\endgroup$ Oct 16, 2019 at 12:21
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    $\begingroup$ bing to the o. Except what's the difference in my shadow? Also please can I get help with one more thing Merlin? As you can't copy an object over to another Blender doc, can you please tell me how to take off/reset whatever I've weirdness I've managed to appy to my model so that I can apply this new set? Or do I just start again? $\endgroup$ Oct 16, 2019 at 12:40
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    $\begingroup$ thank you for the links. They're very informative. $\endgroup$ Oct 16, 2019 at 12:52
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    $\begingroup$ Aha! Brilliant! I can't chat in the chatroom until I have 20 reputation but I have a few more questions. Is there I way I can ask them? $\endgroup$ Oct 16, 2019 at 13:04

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