Troubleshooting for Substrate glass material rendering...Thick glass

Hi! Fairly new to Unreal 5 rendering and material authoring. Doing product design work in Blender but trying to render it in Unreal. I am trying to make a Substrate glass material that is close to what I have in Blender. I’ve modelled a bottle with thickness, but when I bring it into Unreal, it renders the material on both surfaces instead of the mass between them–like in Blender…Not sure what I’m doing wrong; I’ve watched all the available tutorials on Substrate Glass materials I could find but still nothing. I’ve also tried the double-sided features but it didn’t look right either.





  1. Are you used to rendering in cycles or EEVEE?

  2. What version of unreal engine are you using?

  3. What’s your glass material’s lighting and blend mode?

  4. Do you have HWRT enabled, and if so, what are your translucency settings in your PPV?