The model simplifier
What happens to heavy geometry on import, and how to choose quality levels.
Industrial CAD is made for manufacturing, not live 3D visualization. Machinery Twin provides an in-browser preparation workflow: preview triangle reduction, filter small geometry by size, and compress the saved model without a separate preprocessing application.
What the pipeline does
- Tessellation control, STEP/IGES surfaces are triangulated at a density set by the quality level (Draft / Normal / Fine).
- Decimation, over-dense meshes are reduced while preserving silhouettes.
- Small-part stripping, geometry insignificant at the chosen quality (washers, fillets, tiny fasteners) is dropped.
- Compression, the stored GLB is compressed, keeping your project's local storage small.
Choosing quality
The right question is: how close will the camera get?
| Use | Recommended |
|---|---|
| Machine frame, guards, background structure | Draft |
| Moving parts, product flow | Normal |
| Hero part in a client demo close-up | Fine |
Mixed quality across one scene is normal and encouraged: a Draft frame plus Normal mechanisms reads perfectly and renders fast.
When results look wrong
- Missing small parts, intentional at Draft; re-import that part at Normal/Fine.
- Faceted curves, tessellation too coarse for a close-up; go one level up.
- Still slow, check the triangle count with the performance monitor; consider splitting the assembly and using Draft for the static bulk.