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An option to set the default specular IOR level on materials in Anvil.

I usually like for my materials to have their IOR levels set to 0. It would be nice if I could set this by default like with the roughness setting in the plugin.

3 Comments
alex · Mar 18, 2026 at 11:19 AM

Will add with medium priority. Won't update here; keep an eye on the repo

alex · Mar 19, 2026 at 12:03 AM

Actually - in Blender it looks like 1.0 is the default lowest value. Are you sure it should be set to 0? What does this do compared to setting it to 1.0?

Xeloph · Jun 1, 2026 at 11:22 AM

sorry for never respoding, i took a couple months off from gamedev. I just downloaded the latest version and the experimental settings that you added for specular is exactly what I was asking for thanks! In Godot the specular "IOR level" can make materials look kinda shiny, so being able to have this set to 0 by default is really nice!

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