Edge Group support

Hey. I had such a situation. When you select the assigned edge groups, the entire object is selected.
GIF 24.12.2019 13-27-55
This is inconvenient because if you forgot to select an edge, you have to do it all over again.
For example, in Maya, the selection of edges is preserved when selecting a faces.
In Blender

Maybe there is some kind of addon?


That is because the vertices in your vertex group belong to more than one edge or face, so when you select them from vertex group, you select all edges/faces that are formed from the assigned vertices in the vertex group.

One way around this would be to have Edge Groups and Face Groups, but we don’t have that yet. I don’t know a way to do this in Blender, but I will look into it, bear in mind it is Christmas though.

Cheers, Clock.

there are addons that can solve the problem you’re having- 3dsmax calls them ‘selection sets’, so most of the addons I see are named something similar: https://blendermarket.com/products/selection-sets-addon

(edit: looking closer, that addon maybe only works in object mode, I know I have seen some that work in edit mode however- might take a bit of searching)

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Use two or more vertex groups.

If i may explain,

Blender does only support vertex assign for groups, its very deeply rooted into the code/architecture of blender, reason why it has not been rewritten until now as it would require a large rewrite of the blender code.

If we ever get edge/face group support it would only happen when the large code rewrite happens.
Since blender 3.0 is on the horizon i wonder if it can be changed, since that version might break a lot of stuff codewise, so a break in compatibility might be acceptable.


With attributes we already have edge groups, face groups, etc! The only missing part is adjusting them in edit mode (which admittedly is quite important), but that is planned.

Here is the original mesh in the property editor, and those same attributes are accessible in geometry nodes.


That missing part is a fairly big one, though, right? Edge marks (bevels, creases, seams, sharps) are currently drawn as a part of the edges themselves, with just a width and color change, and not as an overlay. I can’t really see a way to visualize arbitrary attributes using that approach, which means there’s a whole overlay system (in addition to the actual workflow stuff) that needs to be hashed out before edge groups can be added to the Soon™ list.

Yes, right. I’d say half of the work has been done. We now have a system that can actually use these arbitrary domains and types, now we need to be able to edit them on original data.