Probably I vibe coded a lil startup here? 😭 It has been such a loooong wish of mine to build some kind of 3D experience where I could customize a T-shirt in literally any way possible and it’s finally here. Built with Three.js using GPT 6 Astra, this is... a full 3D T-shirt customization studio where you can visualize and customize a realistic shirt directly in the browser. That T-shirt itself was modeled by Astra using Tripo right inside Codex through Tripo Plugin. And you can pretty much do anything with it. You can paint directly on any side of the shirt using different brushes and colors, or even spray paint it in real time just like you would spray on a wall. There are also stickers generated using GPT Image 2.5 that you can place anywhere on the T-shirt, resize, reposition, recolor, layer, and customize however you want. On top of that, there’s support for things like fabric customization, sizing, layers, colors, and even wind simulation to push the realism a little further. Once you’re done, you can export the entire design as a 3D view or export individual images of the T-shirt so you could technically take the design, print it, and maybe even sell it. One of my favorite parts is how the spray painting effect works directly on the 3D T-shirt in real time. I also loved seeing how Astra managed to keep the whole experience performant across devices using a custom BVH implementation along with several CPU side optimizations. And the process of building it was super simple. I generated the initial studio design using GPT Image 2.5, gave that image to Astra with the Tripo Plugin enabled, and it basically handled everything from there. I didn’t have to separately generate a 3D reference, upload it to Tripo, download the asset, give it back to Astra, or manually coordinate any of that. Astra handled the entire flow on its own without needing any additional input from me. Really happy with both the process and how the final result turned out. Live:show more

@threejs Yep, you have. It has a lot of potential. But actually building the product will be challenging, as there will be many things to consider.

@threejs I agree, but I would say none is harder than marketing 😂

@threejs True 😔

@threejs That's super cool

@threejs Thank you so much :)

@threejs very cool! what reasoning level?

@threejs Thank you. It's high reasoning :)

@threejs You are full of ideas man.

@threejs And yet, I somehow feel like I’m running low on ideas 😂

@threejs 🤣 naa, more will come. For me, I keep feeling like my ideas aren’t worth building because I always focus on all the ways the idea might not work.

@threejs you should probably sell it at envato/codecanyon

@threejs I've heard about them a little but never really explored, I will try 🤔

@threejs JSM you're too good❤️

@threejs JSM is ♥️

@threejs Really cool

@threejs Thank you :)

@threejs customizing T-shirts in 3D is gonna change how people shop online

@threejs If that happens, it'll almost be a new revolution in the shopping industry :D

@threejs customizing a T-shirt in 3D sounds cool, but user experience is key to success

@threejs That's needed or must for all kinds of websites anyway :)

@threejs building a 3D T-shirt customizer sounds like a cool project, especially with GPT-6

@threejs Thank you :D

@threejs My wife’s cousin did this on mobile shipped direct from china. It didn’t work.

@threejs This same concept?

@threejs Bro putting good stuff with entire prompt. But how you gona scale it , as more users will join you need to handle a lot of things. If you can build in public , it will be a great startup for sure. Btw great design taste :)

@threejs Thank you. I don't have any full plans for it yet, I'm just happy building prototypes for now :D

@threejs how are you keeping sticker layers aligned when the shirt is resized or reshaped, especially after exporting the design for printing?

@threejs chased LMSYS for a month — users still cared about latency

@threejs full 3D shirt customizer is sick

@threejs principle: ship the eval your customers actually feel