SAM 3 - 3D Align

Reconstruct full 3D scenes with people and objects aligned in unified space.

Generated Result

Generated

Create a 3D model from your image in seconds

10,000+ generations this month

📄 About SAM 3 - 3D Align

SAM 3 - 3D Align is an advanced AI-powered model designed for seamless full-scene 3D reconstructions, expertly placing both human bodies and objects within a unified, context-rich 3D space. Leveraging state-of-the-art depth estimation and mesh alignment technology, this model transforms 2D images and mesh data into highly accurate 3D visualizations, making it an essential tool for industries that require precise spatial understanding and immersive scene creation. At its core, SAM 3 - 3D Align processes an input image along with body and object mesh files (in .ply or .glb formats), automatically estimating or accepting provided focal length data to achieve lifelike proportions and placements. The model can utilize an optional human mask to improve segmentation or work with the full image when necessary. By aligning body meshes with object meshes in a shared 3D context, it enables the creation of comprehensive scenes where the relationships between people and objects are spatially accurate and visually coherent. This powerful AI model is ideal for 3D artists, VR/AR developers, animators, game designers, and professionals in architecture or robotics who seek to generate or analyze realistic digital environments. Whether you're reconstructing a physical space, preparing assets for virtual staging, or developing interactive simulations, SAM 3 - 3D Align offers a streamlined workflow that delivers reliable, high-quality outputs in multiple formats, including PLY, GLB, visualizations, metadata, and combined scene files. Key capabilities include automated depth estimation, flexible input handling via URLs or file uploads, and fast processing times (typically 30-60 seconds per scene). The model's robust mesh alignment ensures that human and object elements maintain accurate spatial relationships, crucial for applications like animation, robotics training, scene understanding, and digital twin creation. With support for optional body masks and object meshes, users have granular control over the scene composition, enhancing both the accuracy and versatility of their 3D projects. Supported by a user-friendly credit-based platform, SAM 3 - 3D Align is accessible to professionals and creators looking to elevate their 3D workflows with AI-driven automation. Explore new possibilities in digital content creation, spatial analysis, and immersive visualization, all powered by cutting-edge 3D scene alignment technology.

✨ Key Features

Performs full 3D scene reconstruction by aligning body and object meshes within a unified spatial context.

Accepts input images and mesh files via URL or direct file upload, supporting .ply and .glb formats.

Automatically estimates the camera's focal length for realistic depth representation, with manual override available.

Supports optional human mask images for enhanced segmentation and precision.

Delivers multiple output formats including aligned body PLY, GLB mesh, combined scene GLB, visualization, and metadata.

Processes each scene quickly, typically within 30-60 seconds, streamlining 3D content workflows.

Flexible integration for various 3D generation, visualization, and analysis applications.

💡 Use Cases

⚡Creating immersive 3D scenes for virtual reality (VR) and augmented reality (AR) experiences.

⚡Automating the alignment of human and object meshes for game asset preparation.

⚡Generating precise digital twins for architectural visualization and spatial analysis.

⚡Assisting robotics development through accurate spatial mapping of environments.

⚡Enhancing animation pipelines with realistic human-object spatial relationships.

⚡Facilitating rapid prototyping of interactive 3D simulations.

⚡Supporting research in computer vision and scene understanding.

🎯 Best For

🎯 3D artists, animators, VR/AR developers, game designers, and professionals in architecture, robotics, or digital content creation.

👍 Pros

✓Delivers highly accurate 3D alignment for both human and object meshes.

✓Supports a wide range of file formats and flexible input methods.

✓Fast processing enables efficient project workflows.

✓Offers multiple output types for diverse 3D applications.

✓Automated depth and focal length estimation reduces manual setup.

✓Enables detailed, context-aware scene reconstructions ideal for professional use.

⚠️ Considerations

△Requires high-quality input images and meshes for best results.

△Optional features (like human masks) may need additional data preparation.

△Output quality can depend on the accuracy of provided mesh files.

△Currently optimized for specific mesh formats (.ply, .glb) only.

📚 How to Use SAM 3 - 3D Align

Prepare your source image and ensure you have compatible body mesh and (optionally) object mesh files in .ply or .glb format.

Upload or provide URLs for the image and mesh files in the model interface.

Optionally, upload a human mask image to improve segmentation, or leave blank to use the full image.

Enter the camera focal length if known, or allow the model to auto-estimate it.

Submit your inputs and wait for processing (typically 30-60 seconds).

Download the aligned mesh outputs, visualizations, and combined scene files for use in your 3D projects.

💡 Pro Tips for SAM 3 - 3D Align

★

Capture High-Quality Source Images First Use stable camera angles and good lighting when photographing your scene. Avoid motion blur and ensure the person or object is clearly visible. High-resolution input images produce more accurate depth estimation and better mesh alignment. If your source photo is grainy or poorly lit, the model may struggle to place meshes correctly in 3D space, leading to misalignment or distorted spatial relationships.

★

Generate Body Meshes with Compatible Models Before aligning, create your body mesh using a dedicated 3D body reconstruction tool that outputs clean .ply or .glb files. Ensure the mesh has proper scale and topology. If you're starting from scratch and need to generate a 3D model from text or images, consider Meshy v6 Image to 3D or Hunyuan 3.1 Rapid Image to 3D to produce compatible mesh assets quickly.

★

Use Human Masks for Complex Scenes When your source image includes cluttered backgrounds or multiple people, upload a high-contrast human mask to isolate the target figure. This optional input significantly improves segmentation accuracy, ensuring the body mesh aligns only with the intended person. Clean masks with sharp edges prevent the model from misinterpreting background objects as part of the human form, resulting in cleaner, more professional 3D reconstructions.

★

Provide Focal Length Metadata When Available If your body mesh includes camera focal length metadata, input that value manually for optimal depth accuracy. Auto-estimation works well in most cases, but precise focal length data ensures realistic proportions and correct spatial scaling. This is especially important for professional architectural visualization, digital twins, or VR experiences where accurate measurements matter. Check your mesh metadata or camera EXIF data before uploading.

★

Combine Object Meshes for Rich Scenes Take advantage of the optional object mesh input to create composite 3D environments. Upload furniture, props, or environmental elements as .glb files to build context-aware scenes where humans and objects coexist in unified space. This feature is ideal for virtual staging, game asset preparation, or robotics simulations. For generating object meshes, explore Meshy v6 Text to 3D or Hunyuan 3.1 Pro Text to 3D first.

★

Export Multiple Formats for Flexible Workflows SAM 3 - 3D Align outputs aligned body PLY, GLB mesh, combined scene GLB, visualization images, and metadata. Download all formats to maximize compatibility with your 3D pipeline. Use GLB files for game engines and web viewers, PLY for scientific analysis or mesh editing software, and visualizations for client presentations. Keeping all outputs ensures you can adapt your scene for different platforms without re-processing.

Ready to try SAM 3 - 3D Align?

Get 10 free credits — no credit card required

Start Free →

Frequently Asked Questions

SAM 3 - 3D Align accepts images in standard image formats and mesh files in .ply or .glb formats. Object meshes should be .glb files, and you can also provide an optional human mask image for better segmentation.

Providing the focal length from your body mesh metadata can improve accuracy, but the model can auto-estimate this value if it is not specified, ensuring realistic depth and scale.

Typical processing time for a scene is around 30-60 seconds, making it efficient for rapid prototyping and iterative 3D workflows.

Yes, SAM 3 - 3D Align is designed for professional use and supports commercial 3D content creation, architectural visualization, game development, and more.

Pricing varies by model and is based on a pay-as-you-go credit system, allowing you to pay only for the resources you use.

SAM 3 - 3D Align operates on JAI Portal's pay-as-you-go credit system, charging per scene alignment based on input complexity and processing time. Typical scenes process in 30-60 seconds, with credit costs reflecting the computational resources required for depth estimation and mesh alignment. This model is priced competitively for specialized scene reconstruction tasks. For simpler 3D generation from text or single images, models like Hunyuan 3.1 Rapid Text to 3D may cost fewer credits but won't offer the same multi-mesh alignment capabilities. Check the model page for current per-use credit pricing, and remember JAI Portal never requires subscriptions—you only pay for what you generate.

Yes, all outputs generated with paid credits on JAI Portal come with full commercial-use rights, including scenes created by SAM 3 - 3D Align. You can integrate the aligned body meshes, object meshes, combined scene GLB files, and visualizations into commercial games, VR/AR experiences, architectural presentations, digital marketing assets, or any revenue-generating project. This makes the model suitable for professional studios, freelance 3D artists, and enterprises building interactive content. Ensure you own or have rights to the input images and meshes you upload, as the commercial license applies to the AI-generated alignment and reconstruction, not the source materials themselves. For full terms, review JAI Portal's licensing documentation.

SAM 3 - 3D Align delivers multiple output formats to suit diverse workflows: aligned body PLY files for scientific analysis and mesh editing in tools like MeshLab or Blender; GLB mesh files for game engines (Unity, Unreal), web-based 3D viewers, and AR/VR platforms; combined scene GLB files that merge body and object meshes into a single asset; visualization images for client presentations or documentation; and metadata JSON files containing alignment parameters, focal length, and spatial coordinates. Use GLB for real-time rendering and interactive applications, PLY for high-fidelity editing or research, and visualizations for quick reviews. The combined scene GLB is ideal when you need a ready-to-deploy environment with all elements pre-aligned.

If your aligned meshes appear distorted or incorrectly placed, first verify your input image quality—blurry photos, extreme lighting, or motion blur degrade depth estimation. Next, check that your body and object meshes have clean topology and proper scale; broken geometry or inconsistent units cause alignment errors. If the model auto-estimated focal length, try providing the exact value from your camera metadata or body mesh source for better accuracy. Uploading a high-contrast human mask can also improve segmentation when the scene is cluttered. For persistent issues, ensure your mesh files are valid .ply or .glb formats without corrupted data. If you're generating meshes from other models, Meshy v6 Image to 3D and Hunyuan 3.1 Pro Image to 3D produce reliable outputs compatible with SAM 3 - 3D Align.

Currently, SAM 3 - 3D Align processes scenes individually through the JAI Portal web interface, with each scene taking approximately 30-60 seconds. For users managing large-scale 3D reconstruction projects—such as architectural firms digitizing multiple properties or game studios aligning hundreds of character meshes—JAI Portal's API access may be available for enterprise accounts. API integration allows you to automate scene alignment workflows, submit batches of image and mesh pairs programmatically, and retrieve outputs in bulk. Contact JAI Portal support to inquire about API access, batch discounts, and custom credit packages for high-volume use. For smaller projects, the web interface provides a streamlined, user-friendly experience with immediate results and flexible pay-as-you-go pricing.

⚖️ How SAM 3 - 3D Align Compares

SAM 3 - 3D Align occupies a specialized niche within JAI Portal's 3D generation suite, focusing on precise spatial alignment of body and object meshes within unified scenes—a capability distinct from standalone 3D model generators. Unlike Meshy v6 Text to 3D or Hunyuan 3.1 Rapid Text to 3D, which create individual 3D assets from text prompts, SAM 3 - 3D Align reconstructs full environments by aligning pre-existing meshes with depth-estimated scenes. This makes it ideal for users who already have body scans or object meshes and need to place them accurately in spatial context—think VR scene composition, digital twin creation, or robotics training simulations. If you're starting from scratch and need to generate a 3D model first, consider Meshy v6 Image to 3D or Hunyuan 3.1 Pro Image to 3D to create compatible meshes, then bring them into SAM 3 - 3D Align for scene assembly. For projects requiring optimized topology or part segmentation, Hunyuan 3.1 Smart Topology 3D or Hunyuan 3.1 Part Splitter 3D offer complementary workflows. Choose SAM 3 - 3D Align when spatial accuracy, multi-mesh coordination, and context-aware reconstruction are priorities. JAI Portal's side-by-side compare view lets you test multiple 3D models with the same inputs, and with pay-per-use credits, you can experiment risk-free to find the right tool for your workflow.