P3D-Bench: Benchmarking MLLMs for Parametric 3D Generation and Structural Reasoning

arXiv:2606.11152 · cs.CV · Submitted 2026-06-09 · Read on arXiv

cs.CV

Submitted: 2026-06-09

Updated: 2026-10-14

Comments: 26 pages, including appendix. v4: optimized figure compression; content and results unchanged from v3. v3: updated model evaluations, fixed 100-case subsets per task, and revised score aggregation. Project page: https://spatiaos.github.io/projects/P3D-Bench/

Code: https://github.com/CadQuery/cadquery

Project page: https://spatiaos.github.io/projects/P3D-Bench

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Benchmark — 3× in this paper · explained in 2 episodes
• Alignment — 1× in this paper
• Benchmarking — 1× in this paper · explained in 4 episodes
• Fidelity — 1× in this paper · explained in 2 episodes
• Semantic Alignment — 1× in this paper · explained in 4 episodes
• Structural Reasoning — 1× in this paper · explained in 2 episodes

Sources

• CADSmith: Multi-Agent CAD Generation with Programmatic Geometric Validation
• UniCAD: A Unified Benchmark and Universal Model for Multi-Modal Multi-Task CAD
• Evaluating Large Language Models Trained on Code
• MUSE: Benchmarking Assembly Structure and Interface Geometry in Multi-Component Text-to-CAD Generation
• CAD-Coder: An Open-Source Vision-Language Model for Computer-Aided Design Code Generation
• 3DCodeBench: Benchmarking Agentic Procedural 3D Modeling Via Code
• T$^3$Bench: Benchmarking Current Progress in Text-to-3D Generation
• LL3M: Large Language 3D Modelers
• ArtiCAD: Articulated CAD Assembly Design via Multi-Agent Code Generation
• Text2CAD-Bench: A Benchmark for LLM-based Text-to-Parametric CAD Generation
• Text-to-CadQuery: A New Paradigm for CAD Generation with Scalable Large Model Capabilities
• SkexGen: Autoregressive Generation of CAD Construction Sequences with Disentangled Codebooks
• Vision-as-Inverse-Graphics Agent via Interleaved Multimodal Reasoning
• Clarify Before You Draw: Proactive Agents for Robust Text-to-CAD Generation
• BenchCAD: A Comprehensive, Industry-Standard Benchmark for Programmatic CAD
• 3DGen-Bench: Comprehensive Benchmark Suite for 3D Generative Models
• VoxelCodeBench: Benchmarking 3D World Modeling Through Code Generation
• Articraft: An Agentic System for Scalable Articulated 3D Asset Generation

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