progress of the mentioned prototype with suport for different wegl libs can be found here:
https://github.com/jscad/OpenJSCAD.org/discussions/944

I have just made another step forward: mesh support (but with some quirks ATM)
I have some lighting to fix, and also babylonjs for some weird rason uses left handed system (this adds a bit of complexity to the worker to support it properly)

Also when switching viewers, if they are different orioentation currently I need to run the script again manually to get properly oriented triangles

https://user-images.githubusercontent.com/2480762/162638934-7a945625-420d-4041-98fc-5735fcc34c6b.mp4

@jin-kim Welcome!

I don't know of anyone porting the JSCAD modeling library to Java, but it should be possible.

A few years back, someone ported V1 to C++ but I don't have the link.

And very recently, someone has ported the JSCAD modeling library to C# , and there will be an announcement shortly.

@gilboonet Well, actually I figured out! I was using earcut.js to create indice, and with little bit of touch with the result of CAG union/subtract/intersect it worked well. Thanks for the reply.

@hrgdavor Thank you, I will try from this demo.html file. I already used that file at early stage of V2 to take snapshots of a scene to create an animation, but I'm not sure I understood it all.

🎂

I changed my obj importer code to make it work with obj without groups. Now I can start to colorize my models by code. And there's one nice thing about that : I can use that faces coloring to store a volume's unfold pattern.
Capture d’écran de 2022-03-26 21-48-08.png

@udif great question!

There are three main objects; geom3, geom2, and path2. You can create empty versions of these…

const a = geom3.create() const b = geom2.create() const c = path2.create()

@z3dev hi, yes, it can be found in Apple App Store if you search for "Rukkou". Or use this link directly on a Mac OS. Do let me know your feedbacks 🙂

For those wondering, @platypii is a new member of the development team. He’s already put together some super nice fixes. In addition, he never sleeps so things are moving along at light speed. 😎

So, please let him know if there’s something missing from JSCAD.

@mark-hahn super thanks!

There’s still a little wizardry going on here. But I’ll try this with VSCODE, and then ask a few more questions.

@gilboonet that is excellent, it may be possible later on to integrate that one with jscad or at least take your experience for ideas how to improve 2D use-cases in jscad.

@gilboonet yes, specification for sort functions is to

return zero if a==b return neg or positive number depending if u want to sort ASC or DESC

@gilboonet I finally take advantage of geometries id and class preservation, and created a small js node script that creates a group for all paths having the same class, and at the same time I solve another annoyance that was the impossibility to search by numbers by creating id. That's very nice.

@z3dev You can also change the model, Venus has 1000 triangles and takes 30 sec. on my laptop to unfold (ubuntu with Firefox).

@gilboonet that is definitely something worth considering either as part of jscad or an addon library. I think we will have better idea after I have some time to cooperate with you on your project. It is definitely an interesting use-case, and a real project will give much needed insight on how to proceed with it.