OnGUI without graphics?

Unity Engine
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1

So I assume OnGUI is slow because of the drawcalls.

But if you use OnGUI without actually drawing any graphics, is it still a performance issue?

Like just use GUI.Button and whatnot to specify touchzones, and then have it move around planes in the 3D scene.

2

i would just check for the touchzones in Update, perhaps with Rect.Contains()

regardless of the speed, what you proposed seems “hackish”

3

i tend to be pretty ‘hackey’

makes me feel 1337