Does runtime 3d modeling asset exist.

News & General Discussion
1

I am working on exactly that and was wondering if something exists already. I am thinking extremely cut down version of Blender’s 3d modeling. Cut, Loop Cut, subdivide, proportional editing and some more.
I am aware that pro builder has some runtime abilities but I think it would require a lot of effort to make it do what I want. Long time ago I found a paid asset that looked good but since they I lost track of it.
So does something already exist that I should take a look at?

2

Try
Probuilder
https://docs.unity3d.com/Packages/com.unity.probuilder@5.0/manual/index.html
Or
3D World Building

Also look into asset store.
Maybe there are other ones.

3

ProBuilder isn’t runtime, is it?

Anyhow, I’m currently working on GMesh, the basis for that which is a graph-based mesh format like Blender’s BMesh in order to enable all kinds of mesh editing features (with just vertices & triangles mesh editing is extremely limited and/or complex).

It supports Euler operators (or will, eventually - it’s been only two weeks so far) to enable splitting and merging edges and faces and all that. On top of that, you can build an editing tool. But I don’t know any that enable runtime editing. Unless you aim to make a standalone model editor that’s built on Unity as a renderer, I can’t think of a good use-case for a runtime model editor.

Perhaps you are looking for BMeshUnity which is also a graph mesh editing framework, but it won’t be threadable and I’ve encountered various issues with it so I began writing my own.

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4

I think there used to be realtime CSG, but not realtime polygonal mesh modeling asset.

5

Probuilder does have a run time API. This page seems to indicate that all of Probuilder’s mesh creation and editing functionallity is available at runtime, but the two libraries specified have dead links, so I can’t find any further info.

Anyway, I imagine that you’d still need to write your own UI for any editing features that you want to have.

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6

While not exactly what you described, if you want some ingame feature that allows the user to build things freely, take a look at Clayxels and MudBun:

7

Interesting - BMeshUnity looks slow - the more flexibility, the slower it gets.

I use simple code to add to lists of vertices and triangles to then apply to a Unity Mesh for runtime generation, but having a more useful intermediate definition to work with like this would be great.

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