Inspect separate pieces
Break up an AI-generated prop or character and inspect the returned meshes individually. Use the parts view to see where the model was separated.
AI Mesh Segmentation
Separate an existing 3D model into mesh parts. Inspect the pieces before further editing or reusing them in Blender. See a saved example ↓
Add a model to start
Upload a model, choose an example, or select a model from History.
- Choose a source model
Upload a supported file or load the robot or character example. Select a processing model that accepts your format.
- Set the split options
Choose the general detail level or available character template. Check the displayed credits before starting the task.
- Inspect the parts
Review the returned model in the parts view. Check the boundaries and export supported output for your next editing step.
See a model become separate mesh parts
Inspect a robot separated into twelve meshes and a character separated into six body regions. Display colors identify the returned pieces so you can review the boundaries before editing in Blender.
Robot · 1 source mesh
Robot · 12 returned meshes
Character · 1 source mesh
Character · 6 returned meshes
- Robot
- 1 → 12 meshes
- Character
- 1 → 6 meshes
- Display colors
- Identify returned meshes
- Next step
- Inspect and edit in Blender
How this example was made
Robot · general split
The saved robot uses Hi3D Split with General split and Medium detail. Choose Robot in the tool to inspect the source and the returned parts from different angles.
Character · body regions
The saved character uses the character template with six body regions and no joints. Choose Full-body character in the tool to inspect the actual saved result. Boundaries and returned parts vary with the source.
Rendered directly from the existing source and result GLBs. Each pair uses the same camera angle and studio setup, with each model centered and fitted for display. Neutral shading and per-mesh display colors help inspect geometry; the colors are not a retexture result.
Inspect each part before the next edit
Use part separation when you need to work on an existing model one piece at a time. Review shared edges, grouping and materials before reusing the parts in a scene or passing them to another tool.
Prepare for further editing
Bring the result into Blender to rename parts, refine boundaries and assign materials. Check shared edges and part placement before assembling the asset.
Choose the right split
General detail settings and character templates offer different ways to group a model. The source geometry and selected model affect the output.
Choose the right workflow
Separate a prop or character into parts
Use AI mesh segmentation to inspect and edit individual meshes. Check boundaries and materials before reusing them.
Reduce the source model's polygon count
Use Remesh when you need a different face budget or topology rather than separate pieces. Simplify an existing model →
Make an exact cut for printing
Use a slicer or mesh editor for a positioned plane cut and alignment connectors. AI part separation does not guarantee these features.
Formats, compatibility and processing limits
| Part separation | This is AI-based separation into meshes. The output may need cleanup and does not provide guaranteed semantic labels or stable part identifiers. |
|---|---|
| Cutting an oversized print | This is not a plane-cut STL editor with custom cut positions and guaranteed alignment pins. Use a slicer or mesh editor for precise printable cuts. |
| Input formats | Hi3D Split accepts GLB, OBJ and STL. Hunyuan Part Splitter accepts FBX with a 30,000-triangle limit. Check the selected model's current limits. |
Questions about AI Mesh Segmentation
What is 3D mesh segmentation?
Mesh segmentation groups an existing mesh into parts that can be inspected or edited separately. This tool uses AI-based part separation; it does not segment medical images or create a new 3D object from a photo.
Can I split a 3D model into editable parts?
Yes. The tool separates supported source models into multiple meshes. Inspect the result and refine it in a 3D editor when exact boundaries or named components matter.
Can I split an STL file?
Hi3D Split accepts STL as well as GLB and OBJ. It performs model-part separation. For a precise planar cut, printer-bed tiling or alignment connectors, use a slicer or dedicated mesh editor.
Can I separate a character's body parts?
Character templates are available on supported models. A saved example contains six body-region meshes. Results depend on the input and are not a replacement for checking anatomy, joints or rigging.
More questions (2)
Will the pieces be ready for a game engine?
Review them first. Names, origins, scale, materials, collision and any animation need to be checked in Blender and your engine. A separated mesh is one step in preparing a reusable asset.
Is splitting free?
New AI splitting tasks use credits. You can inspect the available controls and saved examples before running. The selected model's cost is shown before submission.