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The Sketchfab 3D Creative Commons Collection (S3D3C)

Florian Spiess, Raphael Waltenspül, Heiko Schuldt

TL;DR

The paper addresses the need for large, diverse 3D model collections that include textures, materials, animations, and rich metadata to enable robust evaluation of modern 3D model analysis and retrieval. It introduces the Sketchfab 3D Creative Commons Collection (S3D3C), comprising $40{,}802$ CC-licensed Sketchfab models, downloaded as glTF with accompanying metadata, and filtered by license and model quality. The authors provide detailed statistics on modalities (textures, animations, sounds) and metadata coverage across licenses, and discuss category and tag distributions to illustrate dataset composition. They also acknowledge limitations such as representation bias and API constraints, and outline plans for persistence through direct downloads. Overall, S3D3C serves as a contemporary benchmark for evaluating both geometry-based and view-based 3D model analysis and retrieval methods, with practical accessibility via OSF and future direct-download support.

Abstract

The technology to capture, create, and use three-dimensional (3D) models has become increasingly accessible in recent years. With increasing numbers of use cases for 3D models and collections of rapidly increasing size, better methods to analyze the content of 3D models are required. While previously proposed 3D model collections for research purposes exist, these often contain only untextured geometry and are typically designed for a specific application, which limits their use in quantitative evaluations of modern 3D model analysis methods. In this paper, we introduce the Sketchfab 3D Creative Commons Collection (S3D3C), a new 3D model research collection consisting of 40,802 creative commons licensed models downloaded from the 3D model platform Sketchfab. By including popular freely available models with a wide variety of technical properties, such as textures, materials, and animations, we enable its use in the evaluation of state-of-the-art geometry-based and view-based 3D model analysis and retrieval techniques.

The Sketchfab 3D Creative Commons Collection (S3D3C)

TL;DR

The paper addresses the need for large, diverse 3D model collections that include textures, materials, animations, and rich metadata to enable robust evaluation of modern 3D model analysis and retrieval. It introduces the Sketchfab 3D Creative Commons Collection (S3D3C), comprising CC-licensed Sketchfab models, downloaded as glTF with accompanying metadata, and filtered by license and model quality. The authors provide detailed statistics on modalities (textures, animations, sounds) and metadata coverage across licenses, and discuss category and tag distributions to illustrate dataset composition. They also acknowledge limitations such as representation bias and API constraints, and outline plans for persistence through direct downloads. Overall, S3D3C serves as a contemporary benchmark for evaluating both geometry-based and view-based 3D model analysis and retrieval methods, with practical accessibility via OSF and future direct-download support.

Abstract

The technology to capture, create, and use three-dimensional (3D) models has become increasingly accessible in recent years. With increasing numbers of use cases for 3D models and collections of rapidly increasing size, better methods to analyze the content of 3D models are required. While previously proposed 3D model collections for research purposes exist, these often contain only untextured geometry and are typically designed for a specific application, which limits their use in quantitative evaluations of modern 3D model analysis methods. In this paper, we introduce the Sketchfab 3D Creative Commons Collection (S3D3C), a new 3D model research collection consisting of 40,802 creative commons licensed models downloaded from the 3D model platform Sketchfab. By including popular freely available models with a wide variety of technical properties, such as textures, materials, and animations, we enable its use in the evaluation of state-of-the-art geometry-based and view-based 3D model analysis and retrieval techniques.
Paper Structure (10 sections, 4 figures, 3 tables)

This paper contains 10 sections, 4 figures, 3 tables.

Table of Contents

  1. Introduction
  2. Existing 3D Model Collections
  3. The Sketchfab 3D Creative Commons Collection
  4. Collection Process
  5. Model Statistics
  6. Discussion
  7. Properties and Examples
  8. Limitations
  9. Conclusion
  10. Acknowledgments.

Figures (4)

  • Figure 1: A rendering of the model "Flower Crown" (CC-BY) by the user "Zoinks360". The model is untextured.
  • Figure 2: A rendering of the model "Apulian Red-Figured Lebes Gamikos" (CC0) by the user "The Hunt Museum". The model is textured entirely by the material without any texture files.
  • Figure 3: Three frames from the animation of the model "048 Dolch mit Scheide / Dagger with scabbard" (CC0) by the user "LWL-Archaeologie". At the beginning of the animation the blade of the dagger is completely hidden by the scabbard. Over the course of the animation, the dagger is pulled from the scabbard and moved to the side.
  • Figure 4: Different views of the model "Ship in Clouds" (CC-BY) by the user "Bastien Genbrugge". From left to right: outside render of the model, render from inside the background sphere but outside the clouds, render from inside the clouds, and render of the raw geometry with random colors from inside the clouds.