i'm making a highway based on a reference, and right now is working as a plane, but i need to make 'borders' for it, how can i make them? if i select all the edges, i can extrude them, but they still appear as planes, after that, how can i give them volume? or is there any other way to do it?
This is the highway i'm making, is a solid mesh, based on curves, but is still a plane (as you can see on the image of the right)
And this is what i want to achieve, those 'borders/blocks' around the edges of the highway itself.
Thanks in regards.