statictriangle(this:Flat3x9, ax_:Float, ay_:Float, az_:Float, bx_:Float, by_:Float, bz_:Float, cx_:Float, cy_:Float, cz_:Float):Bool
statictriangleUV(this:Flat3x9, uA_:Float, vA_:Float, uB_:Float, vB_:Float, uC_:Float, vC_:Float, ?windAdjust_:Bool):Bool