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Online 3D Model Preview: Tools Tutorial for GLB, FBX, OBJ
Introduction
Online preview of 3D models requires no professional software installation, facilitating quick viewing, sharing, and collaboration. This tutorial will introduce several popular online 3D viewers and demonstrate how to upload and preview models.
Recommended Tools
- **Sketchfab**: The most popular 3D showcase platform, supports many formats, large community.
- **Three.js Editor**: Browser-based editor, can import models.
- **Clara.io**: Online 3D modeling and rendering platform, supports preview.
- **Model Viewer**: Browser extension or simple web page, suitable for quick viewing.
- **Autodesk Viewer**: Free online viewer, supports many CAD and 3D formats.
Using Sketchfab for Preview
Step 1: Register and Log In
Visit sketchfab.com and register a free account.
Step 2: Upload Model
Click the "Upload" button, select files (supports GLB, GLTF, FBX, OBJ, STL, etc.), fill in title and description.
Step 3: Preview and Settings
After upload, a preview is generated automatically; adjust lighting, background, materials, etc. Supports VR viewing.
Step 4: Share or Embed
Copy the model link to share, or use the embed code to embed in a webpage.
Using Three.js Editor for Quick Preview
Step 1: Access Editor
Open threejs.org/editor.
Step 2: Import Model
Click "File" menu, select "Import", supports GLTF, OBJ, FBX (requires plugin), etc.
Step 3: View and Manipulate
Use mouse to rotate, zoom, and inspect the model. Add lights and modify materials.
Step 4: Export Scene
Can export as GLB or JSON.
Using Autodesk Viewer
Step 1: Visit Website
Open viewer.autodesk.com.
Step 2: Upload Model
Click "Upload file", supports over 50 formats including FBX, OBJ, STEP, etc.
Step 3: Preview and Measure
Provides advanced features like sectioning, measurement, and exploded views.
Supported File Formats
- **GLB/GLTF**: Modern standard, best for online transmission.
- **FBX**: May need conversion to intermediate format; some viewers support directly.
- **OBJ**: Widely supported, but requires MTL and textures.
- **STL**: Commonly used for 3D printing preview.
Notes
- **File Size**: Online platforms often limit file size, free tiers have smaller limits.
- **Textures and Materials**: Ensure all texture files are included when uploading, otherwise display may be incorrect.
- **Privacy**: Publicly uploaded models may be viewed by others; be mindful of copyright.
- **Browser Compatibility**: Requires WebGL support.
Summary
There are many online 3D preview tools. Sketchfab is great for showcasing and sharing, Three.js Editor for quick testing, and Autodesk Viewer for engineering applications. Choose based on needs.
FAQ
How to preview FBX models online?
Use Sketchfab or Autodesk Viewer; they support direct upload of FBX. If the viewer doesn't support it, convert to GLB first.
What if the uploaded model has no textures?
Check if texture files are included. OBJ requires MTL and image files, FBX may embed textures, GLB usually bundles all assets.
Is online model preview safe?
Depends on the platform. If uploaded publicly, the model can be accessed by others. For sensitive models, use local tools or private deployment.
How to embed a Sketchfab model into my website?
On the Sketchfab model page, click "Embed", copy the iframe code and paste it into your webpage HTML.
Which browsers are supported?
Modern browsers like Chrome, Firefox, Edge support WebGL and can preview normally.