SNAP3D: Physically Grounded 3D Parts for Assembly from a Single Image
SNAP3D uses physics simulation feedback to make single-image 3D part generation produce valid, stable assemblies, validated through 3D printing.
The framework improves part-aware 3D generation by resolving inter-part penetration, recovering contact graphs between neighboring parts, and placing parameterized connectors at contact surfaces. Physical simulation feedback refines connector placement, orientation, and dimensions to improve assembly stability while preserving geometry. A physics-based evaluation protocol tests assembly validity and stability under gravity, and results are validated through 3D printing and real-world assembly.
- Resolves interpenetration and missing connections in generated 3D parts
- Simulation feedback refines connector geometry for stable assemblies
- New physics-based protocol complements geometric evaluation metrics
- Validated via 3D printing and real-world assembly
From the original article
1 min read at huggingface.co
Part-aware 3D asset generation enables applications such as editing, articulation, simulation, and fabrication, yet existing methods can generate visually complete individual parts without ensuring that they form a valid physical assembly. Consequently, generated neighboring parts may interpenetrate, lack valid connections, or collapse under gravity.
By Yu-Rou Tuan, Hao-Tang Tsui, Nicolas Ugrinovic · huggingface.co
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