Blender's UI and Runtime: Much Faster Than GPUI

ppmpreetham 690 points 281 comments November 06, 2026
github.com · View on Hacker News

Discussion Highlights (20 comments)

scotty79

That sounds like an amazing idea. I've been using a lot of Rust+GPUI and sometimes behaviors that I'm expecting to be there just aren't. Swapping it for UI that's as battle tested as Blender might improve things.

chiroyce

always liked blenders design language, looks cool!

cultofmetatron

Ive been thinking this would be amazing to do for ages. happy someone finally did it. its the perfect system for interfaces where speed matters. hope to see more 3d modellers, video editors, daws and simulation systems built on this.

felixthehat

It would be such a boon if GIMP and Inkscape could adopt blender's fantastic GUI

dev0p

I love the general idea behind Blender's UI. And I do appreciate the effort that goes into it, especially in the latest versions as it got much better, But I really really really REALLY don't want that UI in anything else other than Blender. Please don't.

IshKebab

Definitely a worthy goal but they've gone down a super weird route by providing clones of other GUI toolkit APIs on top of this. Your target audience is people that are ok with vibe coding. They don't care about switching to a proper Blender-style API. Just because you can...

andsoitis

Use the native widget toolkit if the platform you target; your users will love you more.

antman

License of GPUI is Apache and BlenderUI is GPL, which is limiting for adoption.

Groxx

> Who wrote it? > The repository is built entirely using LLMs, with no human-written code. ...

xiange

It looks good, but the GPL license restricts the use cases

p-e-w

I’ve thought many times “Man, those widgets look terrible!” I’ve not once thought “Man, those widgets are slow!”

keyle

It's obviously vibe coded, but it's quite well done by the look of the ideas and implementation.

gostsamo

not a single mention of a11y or accessibility, so please be careful before using it for general purpose applications.

hn_submit

This is excellent. I thought about this years ago for an OpenGL based desktop UI. Apple's UI is using something similar I believe. And the Windows UI too is mostly rendered using Direct3D (which is comparable to OpenGL) since Vista. I hope someone else uses this for a new Linux distro.

petterroea

The readme suggests it's a port of the blender code, at least the renderer is claimed to be so: > The drawing code is a C port of Blender's own widget code How can we guarantee BUI is still performant?

bvrmn

I have a python "DSL" which allows to create a simple UI for synth parameters you also make in python. It uses Tk and looks like, mmm, Tk with all other Tk issues. Project was abandoned because of it. Looks like it's time to revive!

pythonRon

I gave it a quick try (Fedora 44/Python/pyenv) with some Tkinter code which is supposed to just work... It doesn't.

luckydata

This project would benefit from a longer Readme.

Washuu

I have been remaking a Blender style UI in Kotlin for my Umamo project because I love Blender's UI that much. I think I will keep going with my own efforts, but this looks nice!

phillc73

It'd be awesome if kitty[1] and calibre[2] adopted the Blender UI. [1] https://github.com/kovidgoyal/kitty [2] https://calibre-ebook.com/

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