(VIDEO) UE4's Geometry Mode is inadequate when compared with that of Quake 1

[=arbopa;442100]
No, not at all. Which sort of proves out that you are not really listening to what people are talking about with level design. Thanks for alerting to that reality.
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There’s more to level design than 3D geometry, but is only about the ability to create geometry, which is in the realm of a 3D artist. If I’m designing a level it’s as much about what it looks like as it is about if it plays well.