My glass material isn't transparent in Eevee When using Eevee, an object with a glass material (in this case: Principled BSDF, trasmission set to 1.0) doesn't seem like it can be looked through: it's completely opaque.

See for instance the material for the blue cube in this scene:



How can I get my glass material to be transparent?
By default, some options that require extra computing efforts are turned off in Eevee and they must be turned on manually.

In the case of a refractive object, you must enable:


Under the Render settings, Screen Space Reflections and, within it, Refraction. manual.


Then, in each of your refractive materials' Material settings, you should enable Screen Space Refraction. manual.




If your material has some kind of Alpha transparency (e.g. a Transparent BSDF shader), you should also select a suitable Blend Mode. manual.