(Using Blender 2.90)
I have a model that has lots of extra geometry (polygons) that I want to delete. I know that I can drag select geometry and then use
Ctrl+X to "Dissolve Vertices". My question is, how do I drag select such that I can select all of the hidden faces/vertices as well as the visible geometry so that when I delete, any and all geometry that fit inside that drag-selected box goes away?
In essence, the problem I am trying to solve is that I have to drag and select the exact same box multiple times to actually delete all of the geometry, and that is a waste of time as well as prone to errors in mouse movement.
How do I drag-select and include all visible and non-visible geometry? Better yet, is there a toggle to switch between visible geometry only and both visible and non-visible when using drag-select?
I see this answer here that looks like what I want, but it references a version of blender that does not match what I have, and I am a noob at Blender, so I do not know how to translate that question into something I can operate on.