Steve Troughton-Smith
Some more things to show off here on this iPad mini 6!
• Longpress band gesture
• Multi-select
• Vertex editing
• Subdividing
• My 'generate a Cornell Box' button
• (And the raytracer, of course)
There is a lot of really neat stuff in this app. Still using Codex 5.3 Medium, still haven't touched a line of code myself
I never really thought about it before, but multitouch is actually legit for 3D modeling tools, maybe even better than a desktop. On a Mac, you need to hold modifier keys (or buy a multi-button mouse) to do everything you want with the viewport, but on touch you can orbit, pan, zoom, and multi-select very easily. If you special-case the stylus too, like I am, it feels very powerful.
Almost all of this extends to spatial computing, though visionOS struggles a bit with two-hand gestures
iPadOS has never been better for rich, complex, desktop-class apps. Almost all of the old barriers and blockers are gone.
Sadly, Apple waited until most developers had run out of patience with the platform.
If this thing had Xcode, a real Xcode, it would be effectively complete
Even my iPhone 12 Pro Max can raytrace!
Which I guess is not all that surprising, considering the A14 chip is the same generation as the M1
That’s a whole lot of raytracing from a little iPad. Biggest render to date, at 5120x2880 — took about an hour to get to the final pass.
Crashed right at the end, so I didn’t get to take a picture of the final output 🥲
The raytracer still needs a bunch of work, but it’s more and more capable day by day
This 3D modeling app and the switch to the more-expensive GPT 5.4 model might finally be the thing that burns through my weekly usage budget. It's now 25K lines of code; the more-complex renderer really ballooned things a bit, but it's worth it.
I finally moved it out of my temp folder and into my projects folder, and handed it off to a fresh GPT 5.4 session with a bunch of documented context about the intricacies of the project. Hopefully that's enough to jump-start it
I know how to use Photoshop, and I wish 3D tools were as easy to use as a Photoshop. So I think that's the kind of app I want to create*. Not knowing what I don't know, I'm sure to stumble across features that no self-respecting modeling tool would add, but are great for people like me. That's the beauty of cross-domain knowledge, I guess.
Anyway here's a pen tool.
(*you know, if this ever actually becomes something I would want to ship and put my name to)
The Logitech Muse hardware does feel like a piece of junk. Connecting it to the headset is really flakey — you pretty much have to unpair it and re-pair it every time you want to use it, before visionOS will recognize it and account for it in passthrough, but I suspect that's Apple's bug. Together, though, it makes it feel pretty lame to use.
Anyway, my stylus-drawing code works on visionOS too
✈️ If you've been curious about this 3D modeling tool, and just want to check it out yourself, I have pushed a build to TestFlight for iOS, macOS, and visionOS.
It's not a product, it doesn't have a name, it has many obvious bugs and issues that haven't had a polish pass, and it doesn't save anything to disk. It may never be something I finish; it's just a snapshot in time of the development, to play with
Sim
Quentin Zervaas