Mesh formats
Render a 3MF file in your browser
3MF is what modern slicers and print services take, and unlike STL it keeps parts separate. Rendermio reads it in the browser and renders each object with its own material — the print job, photographed before it is printed.
How Rendermio reads 3MF
Accepted as .3mf. 3MF is a zipped container with a mesh model inside, parsed in the browser. Each object in the file becomes a part, so an assembly saved for printing arrives already divided. Colours defined in the file are read where present; material assignment is still yours in the studio.
What comes through
- Every object as a separate part — 3MF's main advantage over STL
- Units, which 3MF requires and STL lacks
- Object names
What does not
- Print settings, supports and slicer data — none of it is geometry
- Textures, in the current reader
Exporting 3MF from your CAD program
- Save as 3MF instead of STL from your CAD tool if you can — same mesh, with parts and units kept
- One object per part you want to dress differently
3MF files typically come from PrusaSlicer, Cura and Bambu Studio, Fusion 360, SolidWorks, Windows 3D Builder. Working in SolidWorks, Fusion, CATIA, Inventor or Creo? Their native files are not readable in a browser — here is what to export instead.
Then what happens
Once the file is in, the steps are the same for every format: tell the studio what the object is, and it dresses it — one click finds the stones in a ring and makes the rest gold. Pick a Look, which sets lighting, backdrop, pose and camera together. Export a listing pack up to 8K or a 360° turntable video. Everything runs on your own GPU; the file never leaves the page.
Questions
3MF or STL for rendering — which should I export?
3MF. It carries separate objects, names and units, all of which STL throws away. The geometry is the same, so there is no downside for rendering.
Can I render a multi-colour 3MF?
The objects arrive separately and any file-defined colours are read, so each part can be dressed on its own. Fine per-triangle colouring is not preserved.
Does Rendermio need the slicer settings in the file?
No, and it ignores them. Only the meshes are read.
Free · runs in your browser · your file is never uploaded