FirePlace: Geometric Refinements of LLM Common Sense Reasoning for 3D Object Placement

Fuente: arXiv
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Hauptverfasser: Huang, Ian, Bao, Yanan, Truong, Karen, Zhou, Howard, Schmid, Cordelia, Guibas, Leonidas, Fathi, Alireza
Format: Preprint
Veröffentlicht: 2025
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author Huang, Ian
Bao, Yanan
Truong, Karen
Zhou, Howard
Schmid, Cordelia
Guibas, Leonidas
Fathi, Alireza
author_facet Huang, Ian
Bao, Yanan
Truong, Karen
Zhou, Howard
Schmid, Cordelia
Guibas, Leonidas
Fathi, Alireza
contents Scene generation with 3D assets presents a complex challenge, requiring both high-level semantic understanding and low-level geometric reasoning. While Multimodal Large Language Models (MLLMs) excel at semantic tasks, their application to 3D scene generation is hindered by their limited grounding on 3D geometry. In this paper, we investigate how to best work with MLLMs in an object placement task. Towards this goal, we introduce a novel framework, FirePlace, that applies existing MLLMs in (1) 3D geometric reasoning and the extraction of relevant geometric details from the 3D scene, (2) constructing and solving geometric constraints on the extracted low-level geometry, and (3) pruning for final placements that conform to common sense. By combining geometric reasoning with real-world understanding of MLLMs, our method can propose object placements that satisfy both geometric constraints as well as high-level semantic common-sense considerations. Our experiments show that these capabilities allow our method to place objects more effectively in complex scenes with intricate geometry, surpassing the quality of prior work.
format Preprint
id arxiv_https___arxiv_org_abs_2503_04919
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle FirePlace: Geometric Refinements of LLM Common Sense Reasoning for 3D Object Placement
Huang, Ian
Bao, Yanan
Truong, Karen
Zhou, Howard
Schmid, Cordelia
Guibas, Leonidas
Fathi, Alireza
Computer Vision and Pattern Recognition
Scene generation with 3D assets presents a complex challenge, requiring both high-level semantic understanding and low-level geometric reasoning. While Multimodal Large Language Models (MLLMs) excel at semantic tasks, their application to 3D scene generation is hindered by their limited grounding on 3D geometry. In this paper, we investigate how to best work with MLLMs in an object placement task. Towards this goal, we introduce a novel framework, FirePlace, that applies existing MLLMs in (1) 3D geometric reasoning and the extraction of relevant geometric details from the 3D scene, (2) constructing and solving geometric constraints on the extracted low-level geometry, and (3) pruning for final placements that conform to common sense. By combining geometric reasoning with real-world understanding of MLLMs, our method can propose object placements that satisfy both geometric constraints as well as high-level semantic common-sense considerations. Our experiments show that these capabilities allow our method to place objects more effectively in complex scenes with intricate geometry, surpassing the quality of prior work.
title FirePlace: Geometric Refinements of LLM Common Sense Reasoning for 3D Object Placement
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2503.04919