Embedding a design in a website

hrgdavor

@platypii that is excellent news. If you could share the code in some way, so other jscad users could make use of it

regl has an advantage over threejs as it has less features, so can easily be more compact.

I was also able to reduce threejs to 420k (minimized, not gzipped) for the needs of rendering jscad models.

Some may need full set of features form threejs and maybe already have included full threejs in their website, but others will also likely want a small optimized version of any of those libs (regl, threejs), so sharing both types of examples will benefit the community. We will just need to see where to put links to them.

platypii

@z3dev said:

Also, please take a look at the minimal viewer, which is really compact.
https://github.com/jscad/OpenJSCAD.org/blob/master/packages/utils/regl-renderer/demo.html

This is exactly what I was looking for! Talk about an under-hyped feature

I'm now able to render my design in the browser, live, in less than 300kb total, using the regl-renderer! Even less bytes when gzipped.

And what's cool is these are my actual CAD files used in production, rendered in the browser super efficiently.

THANK YOU!

hrgdavor

@OrganicPanda that is neat example of jscad integrated into react-fiber. @z3dev it would be cool to mention that one too as example of integration.

https://codesandbox.io/s/react-three-fiber-threejscad-m2w4c?file=/src/App.js

hrgdavor

@OrganicPanda those scripts are a bloody mess. Next iteration is to make them little better and to separate out the code that is bridge between jscad and threejs so it can be independently used to render jscad in any webgl lib (regl, threejs, babylon, etc...)

And those will be part of jscad, so yes on npm

I am looking forward to cooperating with you to make demos that do stuff with less megabytes ... so don't give up, stay tuned, and lets make some fun stuff,

z3dev

@platypii if interested there's an outstanding issue to add a new OBJ serializer, which would be pretty easy.

Also, please take a look at the minimal viewer, which is really compact.

https://github.com/jscad/OpenJSCAD.org/blob/master/packages/utils/regl-renderer/demo.html

platypii

The thing that I don't like about my approach so far:

Size of my jscad code: 12.4kb
Size of rendered obj file: 1.8mb
Size of three.module.js: 1.2mb
Size of jscad-web.min.js: 1.2mb

So now I'm thinking about how to render a relatively simple object without increasing the page size by megabytes. That being said, jscad viewer looking more attractive by the above math...

OrganicPanda

@hrgdavor Those scripts are amazing - thank you for that! Would you consider publishing them to npm for consumption? I put together a codesandbox showing a model from the jscad docs rendering in threejs via react-three-fiber https://codesandbox.io/s/react-three-fiber-threejscad-m2w4c?file=/src/App.js

platypii

Thanks for the ideas! I'm leaning more toward using three.js to render the file.

Currently the best path I've found after some experimentation:

Use jscad to export as .x3d
Convert that to .obj using external program (meshlab)
Render obj with three.js directly using OBJLoader

Color is preserved. Not terrible workflow. Ideal would be a OBJ or GLTF serializer in jscad so I could directly export to a format supported by three.js. I may look into how complicated that would be to write...

z3dev

@platypii You can also try one of the components that other users have built, based on common reactive frameworks.

VUE framework : https://github.com/z3dev/vue-components
REACT framework : https://github.com/kenianbei/jscad-react

hrgdavor

Unfortunately, things that would make this possible easily are still in develompment.

option1 (future)

3mf serializer is on the way and with it you would be able to export colors I think and then use threjs 3mf import

Option 2 (you can do right now)

you can use my nasty coded(below linked) jscad prototype to load jscad script(only single file scripts currently) and do 3mf export there(it does have a bug with instances right now, but I could get to fixing it if you rly need this).

Option 3 (you can do right now)

If you are eager to do it and not have time to wait these things in jscad core, here is a link to my nasty code that runs jscad using threejs instead of regl
http://3d.hrg.hr/jscad/three/threejscad2.html?

You need to export json (it is just JSON.stringify of the geometries)

Make a page with threejs, load json, and then convert those to BufferGeometry

code I have to convert from jscad to threejs is in these 2 scripts:

http://3d.hrg.hr/jscad/three/CSGToBuffers.js
http://3d.hrg.hr/jscad/three/CSG2Object3D.js

I have cleaning to do to bring this to jscad, along with some other changes needed in jscad inernally.

If you want to use this right now, and you have questions about the scripts I can also be reached on discord.

z3dev

If the visualization doesn't need the input of parameters then a static design can be loaded, i.e. json. You can try this by exporting to JSON, and then drag and drop the JSON file to the WEB UI.

The benefit is there's no compilation of code, no conversion of format, just loading of the geometries (objects) from the JSON file.