Trying to create a roof generator: some questions

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@marcatore

Have you some tips how to select and measure the edge lenghts of a mesh

This gives you each edge’s length and from there you might get to what you want.

@marcatore

I’d like to use mesh islands as the roof mesh could have some segmentation, so I have to be safe and consider as one element every mesh, both with mesh subdivision. Is it a too safe approach?

I don’t get what you’re trying to do, sorry But it seems to go in the right direction.
What I was doing is to instance a giant grid and remove what is outside the base mesh using geometry proximity. But as said, it’s not that simple in the end…

Here a some retrieved posts where I show a bit of that technique, that might give you some hints !

Buildings and streets with some geometry nodes

Hey Thanks ! That’s fun, I had a similar , semi-failed attempt before going wild with the abandoned house a bit later, [image] What you’ve done looks pretty cool already, it’s a bit weird around the tiles but that’s still an achievement. If you’ll get back at it a bit latter you’ll have new ideas and hopefully it will work better ! And it’s quite fun to see similar concepts developed in different ways, well done !! It’s actually the trickiest part, I’ll try to describe it as best as I can…

Procedural Abandoned House with Geometry Nodes

I’m sorry to bother you with more questions. I’m finding the grid instancing approach super useful, but I’m having troubles removing left over parts where the grids intersect. I saw that you mentioned storing IDs of the original faces, but where and how do I use those IDs later?

Good luck !