Hi. I am curious about how to manipulate the subdivisions of an primitive, in this case, a plane. When you create the plane primitive, you're asked how many width and height segments you'd like to have. What is the purpose of these parameters? As far as i know, regardless of the number of segments, a plane have only one submeshe and subgeometry (the plane itself), and you can't get the segments (faces) as if they were one of those.
What i wanted to do was to get the faces (or segments) of a primitive and detect collisions with mouse and change it's material when this happens. How can i do it? I'm betting that i have to get the individual vertices forming the face/segment i want to change. If that's the way, it seems like a lot of work (specially identifying the vertices). Is that so? Any ideas? Thanks!
