3-way radial symmetry problems with Radiant
Ok, ok, I know what you guys are going to say: "it's your own fault for trying to do something this complicated."
However, I really don't want to compromise my architectural vision for ease-of-construction; that means I need to work out a decent method for getting 3-way radial symmetry that doesn't result in z-fighting, vertex mis-alignment, or non-congruent brush sizes. My current method involves constructing one "group" of elements, then duplicating that "group" twice and rotating the duplicates 120° and 240°, respectively.
It's the next part where I start running into trouble. Radiant (any version, it seems--I've tried this in JK2Rad as well as Gtk) seems to be perfectly fine with brush/curve vertexes ending up at a non-gridplane set of coordinates (say, due to a brush "arbitrary" rotation of any amount other than 90°); what I can't figure out is how to convince Radiant to allow me to move a vertex back onto the construction grid.
I suppose my question can be boiled down to this: is there any way to disable "snap to grid" in Radiant?
Aside from that, can you guys think of any suggestions for making an easier job of creating 3-way radial symmetry (besides "give up on it alltogether")?