Mesh formats
Render a 3DS file in your browser
The .3ds format is thirty years old and still everywhere in model libraries. Rendermio reads it in the browser and renders it with materials that did not exist when the file was made.
How Rendermio reads 3DS
Accepted as .3ds. 3DS is a binary chunk format from the DOS era, parsed in the page. Its objects become parts. It stores triangles only, with 16-bit indices, so any single object is capped at 65,536 vertices — large models are split across objects by the exporter, which suits the studio fine. Its materials are set aside.
What comes through
- Objects as separate parts
- Smoothing groups, as normals
- UVs
What does not
- Materials and textures — 1990s shading, replaced by the studio's
- Object names longer than 10 characters, which the format truncates
- Precision on very small or very large models, from the format's limits
Exporting 3DS from your CAD program
- If the source model still exists, export FBX or glTF from it instead — 3DS is lossy by design
- Library downloads in .3ds render fine; just expect to reassign materials
3DS files typically come from 3ds Max archives, TurboSquid and CGTrader legacy models, old architectural libraries. 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
Can Rendermio open old .3ds models?
Yes. The format is read in the browser and its objects become parts. Expect to assign materials, since 3DS materials predate physically based rendering.
Why are my 3DS object names cut short?
The format stores at most 10 characters per name. Rendermio shows what the file has.
Is 3DS worth using in 2026?
Only when it is all you have. It renders correctly, but FBX and glTF carry more and lose less.
Free · runs in your browser · your file is never uploaded