Learning Blender: so I have a cube mesh in edit mode. I duplicated its vertices and my mesh is technically two cubes now:
It may be redundant, but I would like to combine the two cubes to end up with something like this:
I've searched for things like "merge two meshes" or "combine vertices". In general, the posts I find are:
Use CTRL + J
But I feel this answers a different question. It just doesn't work.
Select the vertices, then press X, and select dissolve.
Doesn't work - dissolve removes the geometry since these are two different meshes (and I think it is suppose to be used on a single mesh).
Note: No, I'm not trying to make a rectangular prism (I could simply translate the cube's face). It's just an example - I might want to do this with two spheres etc.