Add CAD-like rendering style

[ghost]

Describe the solution you'd like

Add some sort of CAD-like rendering:

• https://xeogl.org/examples/#effects_demo_gearbox
  • https://github.com/xeolabs/xeogl

[kovacsv]

What do you mean "CAD-like"?

[ghost]

I'm expecting to see at least FreeCAD's FCStd (which is also OCCT-based), STEP, IGES, BREP models to be shown as in CAD Assistant and Mayo viewers.

• https://www.opencascade.com/products/cad-assistant/
• https://github.com/fougue/mayo

For example, here is FCStd file: 3d-curve_FCStd.zip

But in "Online 3D Viewer" if turn ON "Show edges" it looks fully missing solid edge info, and shows mesh faces edges instead:

Playing with "Edge Angle Treshold" setting make it looks better, but it still missing solid edges:

[yvanblanchard]

It could maybe be done by getting the faces edges from the breps model, from Iges or step for example, and rendering the lines by the engine.

[N3GIS]

https://assetstore.unity.com/packages/tools/modeling/cad-server-pro-245967 https://n3gis.github.io/CADServerPro.html

You can take a look at this product, which is about to be released with Three .js loading CAD models