I make my robot using cyberbotics webots. I can’t figure out how to make a beautiful 3D model. At least at the mantis hexapod level. I understand that you can import ready-made fraud only in vrml97 format, but it is not supported by fusion 360 and other programs. But in webots itself, I did not find a way to build a model more complicated than using cubes, pyramids, and other simple objects. There was also an idea to assemble a model from a large number of rectangles using grouping, but it seems to me that such a model will greatly slow down. Is it possible to see how the finished robots are made, and make changes to them?
The node you are looking for is the IndexedFaceSet https://www.cyberbotics.com/doc/reference/indexedfaceset, it allows you to efficiently model a shape using a set of triangle faces, you will find an example of this in this simulation world: https://cyberbotics.com/doc/guide/samples-geometries#high_resolution_indexedfaceset-wbt
One possible workflow to do this is to use Blender to create your mesh and then use the Webots exporter to export it to Webots: https://github.com/cyberbotics/blender-webots-exporter