# Create Low-poly from CAD Models

For making your CAD file to low-poly you need first to convert it into .obj or .stl. It is described in [this ](https://apertus.gitbook.io/vr/tutorials/convert-cad-models)tutorial.

If you have and .obj or .stl file you can use the [**Fast-Quadric-Mesh-Simplification**](https://github.com/sp4cerat/Fast-Quadric-Mesh-Simplification) tool. You need to clone the git repository (<https://github.com/sp4cerat/Fast-Quadric-Mesh-Simplification>) or use the online version, found [here.](https://myminifactory.github.io/Fast-Quadric-Mesh-Simplification/)

With the online version you can easily upload your file and then to select the simplification rate. After downloading the low-poly file it is Apertus ready.