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  • Published 11 Jun 2025

Relative IOR for physically accurate refractions

This is not my idea and is outlined in this YouTube video: youtu.be/fJrHq9Z2iig

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Development Status: Open

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jayden
11 Jun 2025

1 Comment

nanospawn

I want to add a couple comments:

  1. Please don't be lazy and don't refer to an outside site to submit the idea. Yes, we can all click and watch a video, I just did, and this led me to 2.

  2. "Relative IOR for..." is a poor renaming of what the video calls, correctly, nested dielectrics. Which is the actual and accurate name of the phenomenon.

  3. I am fairly sure they know about nested dielectrics and are fully aware of those, but it seems is not that easy to implement, anyway, I am sure they'll eventually get to it.

This being said, I am all about nested dielectrics, those improve renders a lot, but the Cycles devs have other priorities that are probably more important than this.

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