---
title: "Hi3DGen: workflow fit, costs and terms"
description: "Exploring local source geometry through a normal-map intermediate"
language: en
canonical: https://bestadultgames.io/en/developers/models/hi3dgen
---

[Developers](https://bestadultgames.io/en/developers.md) / [3D models](https://bestadultgames.io/en/developers/models?category=3d)

model · Documentation reviewed · 5 October 2026

B

# Hi3DGen

Exploring local source geometry through a normal-map intermediate

- **Availability**: available
- **Where it runs**: local
- **Costs**: No project-code license fee; budget for GPU compute and asset finishing. Hosted pricing, account access and billing are unverified.
- **Adult content policy**: conditional

Hi3DGen estimates surface directions in a normal map, then uses that map to generate a mesh. Consider it for source geometry that will pass through sculpting, material work and game-ready cleanup. Fine detail is the attraction, but generated details can disagree with the input. Check thin structures and hidden surfaces against your reference: a sharper ridge only helps if it belongs there. For mobile assets, plan to simplify geometry or bake useful detail into textures. Materials and rigging remain separate work, and the cited local demo has a checkpoint-path mismatch to resolve. Generation speed, memory needs and output fidelity have not been independently tested here.

## Commercial use & license

ByteDance's project code is MIT, with copyright and permission notices required in redistributed copies. The pinned NiRNE submodule has no top-level license; its licensing scope and the exact checkpoint terms need clarification before production use.

## Adult content rules

The MIT project license does not grant rights to reference images, people's likenesses or third-party assets. Adult-content permission is not established for the full dependency chain: the pinned NiRNE submodule lacks a top-level license, and exact checkpoint terms still need review. Any hosted deployment adds its own terms.

[Read the policy](https://github.com/bytedance/Hi3DGen/blob/main/LICENSE)

## What you need

The cited setup uses CUDA, PyTorch 2.4.0, torchvision 0.19.0, spconv 2.3.6 and xformers 0.0.27.post2, plus a recursive clone for NiRNE. Resolve the demo's normal-checkpoint path mismatch and reconcile dependency versions before running it. No universal VRAM minimum is verified.

Ranks are recommendations for the task described, based on reviewed documentation. Model ranks cover non-explicit development work. We have not run practical benchmarks. Check content policies and commercial terms separately. [How the ranks work](https://bestadultgames.io/en/developers/methodology.md)

### Sources & further reading

- [Hi3DGen official repository](https://github.com/bytedance/Hi3DGen)
- [Hi3DGen official project paper](https://stable-x.github.io/Hi3DGen/hi3dgen_paper.pdf)
- [Cited Hi3DGen demo loader](https://github.com/bytedance/Hi3DGen/blob/2b12d057e82bdeb751edfe7fab82632f7df2c7ba/app.py)
- [Pinned NiRNE checkpoint loader](https://github.com/lzt02/NiRNE/blob/38bb09fbfc6808d1f422326a5356fb172b59c722/hubconf.py)
- [Pinned NiRNE repository](https://github.com/lzt02/NiRNE/tree/38bb09fbfc6808d1f422326a5356fb172b59c722)

Last checked 5 October 2026.

## Why consider it

- Normal maps give the geometry stage explicit surface-direction cues
- Local demo offers mesh export in OBJ, GLB, PLY and STL
- Geometry-only workflow suits artists with an existing material pipeline

## Tradeoffs to plan for

- Materials, rigging and runtime mesh cleanup remain separate work
- Cited local demo downloads and loads different normal-checkpoint paths
- Fine detail may need simplifying or baking for mobile scenes

The tier reflects documented fit for the workflow described here and availability. No numeric score or hands-on performance results are provided.

[Compare with other models](https://bestadultgames.io/en/developers/compare?model=hi3dgen)

## Related guides

AI 3D · Intermediate · 6 min read

### [Choose AI 3D tools with a production acceptance matrix](https://bestadultgames.io/en/developers/guides/choose-ai-3d-tools.md)

Choose hosted or local AI 3D tools by cost per usable asset, commercial rights, editable structure and performance in your game.

Read the guide → A reading priority

AI 3D · Advanced · 6 min read

### [Turn a generated mesh into a game-ready asset](https://bestadultgames.io/en/developers/guides/generated-mesh-to-game-ready.md)

A practical pipeline for cleaning a generated mesh, checking materials and animation, and accepting its runtime cost on target devices.

Read the guide → B reading priority

AI 3D · Intermediate · 6 min read

### [Keep 3D characters consistent and choose generation or Blender authoring](https://bestadultgames.io/en/developers/guides/consistent-3d-characters.md)

Keep a recurring 3D character recognizable across poses and outfits, with an editable source, clear permissions and a practical choice of production tools.

Read the guide → A reading priority