UltraTex

UltraTex: Aligning Physical Knowledge for High-Fidelity PBR Texture Generation

SIGGRAPH Asia (TOG) 2026

Jingzhi Bao, Xiaohe Ma, Hong Li, Yuanming Hu, Xiaoguang Han

Model description

UltraTex is a method for high-fidelity physically based rendering (PBR) texture generation for 3D assets. It focuses on aligning physical knowledge to generate detailed surface textures, with albedo, metallic, and roughness channels for rendering workflows.

<div style="line-height: 0;"> <img src="assets/ultratex-hero.jpg" width="1000" style="display: block; margin: 0;" alt="A detailed scene rendered with UltraTex-generated materials."> <img src="assets/pbr-showcase.jpg" width="1000" style="display: block; margin: 0;" alt="UltraTex-generated PBR materials rendered in Blender, with material-channel views on the right."> </div>

Usage

The model weights are organized as follows:

UltraTex/
├── UltraTex-MV-Albedo/
│   ├── scheduler/
│   ├── transformer/
│   └── vae/
├── UltraTex-MV-MR/
│   ├── Qwen3.5-9B/
│   ├── scheduler/
│   ├── transformer/
│   └── vae/
├── UltraTex-SR/
│   ├── 4x-upscaler-lite/
│   ├── 2x-RealESRGAN/
│   ├── dit_bf16/
│   ├── dit_fp8_e4m3fn/
│   └── vae_pruned_fp16/
└── UltraTex-Converter-Normal/

The four components handle multi-view albedo generation, multi-view metallic/roughness generation, texture super-resolution, and normal-map conversion, respectively. The tree shows the main directories; keep all accompanying configuration and weight files.

Evaluation

UltraTex outperforms all evaluated baselines in arena ratings and pairwise preference comparisons.

License

The model license is not yet specified. Project figures carry the website's CC BY-NC-SA 4.0 notice; see asset sources for attribution.