Tips and/or documentation to help working with advanced mesh manipulation

Questions
1

Hello.

First, I have to say that this question is very specific and maybe it doesn’t even belong here.

So, I am trying to build a PWA (Progressive Web App) with Babylon.js and Angular. This app should allow the user to import a .stl or .obj file and then manipulate the imported mesh. I read the documentation and the import function is working.

The problem is that the manipulation that I want to do is quite complex. For example, I want the user to draw an area in the mesh and “cut” it, detect colisions between meshes with something like a “heat map” and so on. This is a problem because I don’t seem to find docs/examples/tips for this kind of mesh manipulation and user interaction. So, does anyone have some kind of documentation on this?

Thank you.

2

Hello and welcome!

for mesh manipulation you may have a look to CSG: https://www.babylonjs-playground.com/#T6NP3F#0

For heat maps and so on I think shaders could be the good candidates and thus NME can be your friend: How To use the Node Material - Babylon.js Documentation

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3

Thank you very much that will help me.

Maybe I am asking too much but do you happen to have some playground or docs regarding allowing the user to draw lines on a mesh?

4

gridMaterial draws lines Grid - Babylon.js Documentation, you might be able to use the source docs referenced on this page to help create your own line drawing material.

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