   intersection point of 3 planes ??
  Hello,The intersection of 2 planes is a line, and of 3 planes is a point (assuming none of the planes are parallel).I stumbled accross a formula for the intersection of 3 planes at http://folk.uio.no/stefanha/MAPFiles.pdfwhich looks something like this:-d1(n2 X n3) -d2(n3 X n1) -d3(n1 X n2)_____________________________________n1 dot( n2 X n3),but the result of this is obviously a Vector, not a Point. That doesnt make sense, does it? I was unable to find any other formulas for the intersection of 3 planes, so could someone maybe point me to one that actually works? thanks! 
  I dont understand the formula, but a Vector is made of an x, a y, and a z. So why the hell cant that vector be a point? ;  You have 3 formulas:a1*x + b1*y + c1*z + d1 = 0a2*x + b2*y + c2*z + d2 = 0a3*x + b3*y + c3*z + d3 = 0Three unknown variables x,y,z and three formulaes. Just solve x,y and z  ;  Yeah, point is a vector from origin to the point. So point is presented as vector. 