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1. What's the likelihood of seeing a Unity wrapper for this in my lifetime? I imagine the takeup of it if it plugged into Unity or Unreal would be massively increased.

2. How does it compare with what OTOY are working on for realtime? I imagine they are focused on quality over performance and aren't even considering mobile.

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Unity and Unreal both support Android and PBR so I don't see an obvious benefit to being able to use this alternative renderer. Because of the license and the fact that it's a newish codebase written in simple C++ I can see it being popular as a starting point for in-house engines.

PBR is already enabled in most game engines, it's even supported out of the box by Three.js

I'm asking about this specific engine - not PBR in general.

Why would Unity use Filament? They have a PBR solution that works for them and is in active development. OTOY's OctaneRenderer is an unbiased path tracer. It's not comparable to Filament, two different use cases.

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