Make them square, ideas to create 3/4 view in 3D?

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:bust_in_silhouette: Asked By Wurzelpilz

I make it short, this is what I’m aiming for:
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and in Godot:
enter image description here

Not very square, I solved this in Blender by changing the aspect ratio, which is not quite desirable in a game. A working option in Godot would be to scale the depth and the height by a multitude of 1,414 or √2 but I don’t know, I’m lazy and don’t want change scale for every object, can it be done via shader? I searched for aspect ratio and scaling shaders but no result so far. Or maybe someone has a more elegant way to solve this?