[skocznymroczny]

Tried it on my 2016 Macbook Pro. Has some performance issues, I don't know how many exactly, but I'd say I'm getting around 10 FPS or less.

[hugoamnov]

The PBR pipeline of toy is not well optimized yet: I'll have more time to tackle this issue now that the heavy lifting work has been done !

Framerates are much better in the non-web version somehow: I suspect some unnecessary texture sampling ops are to blame, but I need to investigate.

Resizing the window to a smaller helps greatly improve the framerate, which tends to show that the bottleneck is in the fragment shaders.

[wlkr]

Seconding the performance issues (at least on web). For comparison, https://kripken.github.io/misc-js-benchmarks/banana/ these demos run fairly smooth for me on their highest settings.