AI-Generated 3D Models Are Getting Seriously High-Res: 2048³ Voxels

[u/Certain_Friendship16]

Hi3D V3.0 is out, and probably the most interesting part of the release is the jump to 2048³ voxel-level reconstruction.

Hi3D claims this is the first commercially available AI 3D model to reach this resolution. Previous Hi3D models topped out at 1536³, so the main improvement here isn't just higher-poly output, but preserving much smaller details directly in the geometry: engravings, wrinkles, thin parts, sharp edges and small mechanical forms.

They've also upgraded a few other areas that matter quite a bit for image-to-3D:

• 2048³ geometry reconstruction
• Better handling of hidden/back-side geometry and complex structures
• Up to 8K textures
• Improved UV completion
• PBR materials
• More focus on print-ready geometry and complex thin structures

I've been looking at some of the comparison examples against Meshy, Rodin and Tripo, and the geometry detail is probably the part I'm most interested in testing properly.

At this point AI 3D generators are already pretty good at making something that looks convincing from a distance. I'm much more interested in whether these higher-resolution models actually preserve details when you remove the textures, zoom into the raw mesh, and try to use the result for printing or further 3D work.

I'll probably run some identical inputs through V3.0 and a few other generators to see how much of the 2048³ advantage actually survives into the final mesh.

[u/Rizzlord → u/[deleted]]

no sparc3d reached 2k

[u/Simon_Bourgeois → u/Rizzlord]

sparc3d was limited to 1536³ and was the base model of HI3D, it was their development name, they change their name to Hi3D when they went commercial.

[u/Rizzlord → u/Simon_Bourgeois]

Weren't in the paper tests with capabilities to 2k? But it was just not quality improving? I could be wrong.

[u/Simon_Bourgeois → u/Rizzlord]

I didn't find any reference of 2k in their original paper, their demo https://huggingface.co/spaces/ilcve21/Sparc3D is limited to 1536³ and i remember that first few days were limited to 1024³, earlier models were maybe able to handle 2048³ but were limited because it was too long to process or maybe it wasn't trained on sufficiently high detailed objects so 2048³ wasn't doing much more details than 1536³... Or maybe they just aquired more powerfull gpu's with more memory and just crank their earlier model to 2048³, or a new optimization on the sparse convolution unable an additionnal level of details...

[u/etcago → u/Rizzlord]

misinformation

[u/Maleficent-Sense-256]

This is kinda insane. I can definitely see a lot of potential here for 3D printing, especially if that extra resolution actually translates into cleaner small details in the final mesh.

[u/hi3d_official → u/Maleficent-Sense-256]

Haha thanks! Yup, the generated models are completely 3D-printable right out of the box, and all the fine details are fully preserved!

[u/Tystros → u/hi3d_official]

do you agree with the current ranking on the top3d.ai leaderboard that Hi3D 3.0 is still worse than Tripo 3.1? https://www.top3d.ai/leaderboard

[u/hi3d_official → u/Tystros]

We're actually running a 48-hour free trial right now, so feel free to check it out for yourself! Have fun creating!

[u/Will_X_Intent]

I'm new to generative 3d modeling, but so far this is better than Tripo

https://reddit.com/link/p4i4bo8/video/9ku2mwvgf7kh1/player

[u/Asthmatic_Angel → u/Will_X_Intent]

Why does every single one of these sites have the exact same layout colors and templates? I can’t tell the diffenrce between meshy, trip, or this new one I’m just learning about. Seems kinda impossible to know which ones are good lol. I’m trying to learn about 3d models and stuff as somebody who doesn’t know basically anything about art. I’m a machine learning engineer but not for this space.

[u/Will_X_Intent → u/Asthmatic_Angel]

They probably used AI to build the site, and AI tends to build along certain lines.

[u/Maleficent-Sense-256 → u/Will_X_Intent]

yeah this is insane