
✨ Trusted by professionals and hobbyists in 3D creation
- ⚡ ULTRA3D delivers 6.7× faster attention computation and latent generation compared to Trellis and MeshGPT.
- ⏱️ 3.3x end-to-end acceleration:
Stage 1: VecSet layout generation (< 10 seconds)
Stage 2: Sparse voxel grid generation (< 20 seconds)

Coarse-to-Fine Generation with high efficiency
68.5% win rate compared to previous SOTA works
1024-resolution meshes with fine-grained surface detail

🚫 Eliminates redundant global operations
📊 4.1 speedup-attention speedup
🌐 Significantly accelerate training and inference without compromising quality

(6.7x computation reduction)
ULTRA3D is a breakthrough framework for high-fidelity 3D generation that solves critical efficiency bottlenecks in existing pipelines.
Its core innovations include:
Hybrid Architecture: Combines VecSet-based coarse modeling with sparse voxel refinement
Part Attention: Geometry-aware attention mechanism (6.7x faster computation)
1024-Resolution Output: Industry's highest detail level
3.3x End-to-End Speedup: Generates production-ready assets in minutes
Traditional methods hit computational limites at 1024px due to:
Quadratic attention scaling with voxel count
Memory constraints in DiT architectures
ULTRA3D breaks this barrier through:
VecSet Initialization: Generates coarse layout in seconds
Resolution-Scalable Part Attention: Processes 128-res sparse voxels
Adaptive Downsampling: Full attention only at relatively low resolution