3DUNDERWORLD-SLS
3DUNDERWORLD-SLS: A capable free foundation for developers building multi-camera 3D scanners. Ranked #8 of 29 in 3D Scanning Software by our editors (7.9/10); pricing: Free plan; best for developers building structured-light scanners.
At a glance
- Editor score7.9 / 10
- PricingFree plan
- Best forDevelopers building structured-light scanners
- Free planYes
- Paid fromFree
- Supported inputsTwo or more cameras, patterned-light projector, camera image sequences
- Founded2011 · Montreal, Quebec
- Facts checked20 Sep 2026
Where it wins
- Free, open-source software with CPU and CUDA reconstruction
- Exports reconstructed point clouds in PLY and OBJ formats
- Libraries and extensible camera interfaces support integration projects
Where it doesn't
- Requires two or more cameras and a patterned-light projector
- Does not provide mesh reconstruction or real-time capture
- Distributed as source code and libraries, not a turnkey application
Our verdict on 3DUNDERWORLD-SLS
3DUNDERWORLD-SLS is open-source software for researchers and developers building structured-light 3D acquisition systems. It processes patterned-light image sequences captured by two or more cameras, reconstructing a point cloud from the camera images. The software is aimed at custom scanning systems rather than users seeking a ready-to-run desktop application, with support for camera calibration input and integration into other projects.
There is no paid tier: 3DUNDERWORLD-SLS is free and open source. Its published capabilities include CPU reconstruction and a CUDA GPU implementation, allowing developers to choose between CPU-based and GPU-based processing. OpenCV camera calibration XML input supports calibration workflows, while PLY and OBJ exports provide two formats for moving reconstructed point clouds into other tools. CMake-based compilation and test workflows are included for building the software from source.
Its main strength is flexibility for developers who need to assemble or extend a structured-light scanner. Libraries for integration and an extensible camera interface make it suitable for projects that control their own acquisition pipeline. The trade-off is system complexity: users must supply a multi-camera, patterned-light setup and work with source code rather than a hosted service or turnkey application. It also does not include mesh reconstruction or real-time capture. Choose 3DUNDERWORLD-SLS when control, extensibility, and point-cloud output matter; choose another product when you need an integrated scanning workflow or built-in mesh generation.
Your product? Our editors can test 3DUNDERWORLD-SLS in depth and publish a review, labelled as paid · from $149/mo →
3DUNDERWORLD-SLS pricing
3DUNDERWORLD-SLS fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Supported inputs | Two or more cameras, patterned-light projector, camera image sequences |
| Supported platforms | Not verified |
| Point-cloud tools | Yes |
| Mesh reconstruction | No |
| Real-time capture | No |
| Export formats | PLY, OBJ |
| API access | Yes |
| Deployment | Self-hosted |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Pricing | Free plan |
| Website | github.com |
| Facts checked | 20 Sep 2026 |
Alternatives to 3DUNDERWORLD-SLS
- Artec StudioA Windows workflow for scanner capture, photogrammetry, CAD work, and inspection.9.2
- Creaform.OSA focused acquisition and inspection environment for Creaform hardware workflows.8.6
- Autodesk ReCap ProA broad reality-capture suite for teams working across scanning, BIM, and Autodesk tools.8.2
See all 3DUNDERWORLD-SLS alternatives →
3DUNDERWORLD-SLS vs the competition
- 3DUNDERWORLD-SLS vs Artec Studio
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- 3DUNDERWORLD-SLS vs Autodesk ReCap Pro
- 3DUNDERWORLD-SLS vs Leica Cyclone REGISTER 360 PLUS
- 3DUNDERWORLD-SLS vs Trimble Inpho
- 3DUNDERWORLD-SLS vs MeshLab
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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