How would I go about filling in the plane equation (Ax+By+Cz+D=0)? I am going to use it for collision detection, but I haven''t figured out how to fill in the equation as you can probably tell. Anyhow, please help me! If thispost = 0 Then GoBack() Else Read() End If

Hi

the vector (A,B,C) is the ''normalized normal'' of the plane. D is the distance from the plane to the origin.
So the usual practice is to just hold the normal and D in a plane struct/class. Filling it in goes then like this:




where v1, v2 and v3 are three arbitrary points on the plane

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Runicsoft -- home of my open source Function Parser and more

Don''t think it has to be normalized (A,B,C). You may want it normalized for other reasons though

http://astronomy.swin.edu.au/~pbourke/geometry/planeeq/

google, first hit..

google("Plane Equation Ax+By+Cz+D=0");

"take a look around" - limp bizkit
www.google.com