I never understand why unwrapping a simple rectangular cube like in the picture results in UV’s that have the wrong proportions? Why does Blender stretch the aspect ratio of the faces in the original mesh when it puts them in the uv window?
This stretching makes texturing hard because I have to try to guess the amount of stretch in my uv-map. I know I could use the project from from view option to remove all stretching, but that feels like a massive overkill for such a simple object. I would hate to have to go around all the sides of this cube in order to project each face from the right angle.
Here is a picture of what I mean by streching/wrong proportions: