   Questions on 3DGE
  i am reading <3D Game Engine Design> from David.i just want to summarize here any questions i have had(or you may have) and most important, their answers if possible.all sides, Plz help out, big thanks-------------------------------------------------------------------------1) What is the plane equation in Clip Space?i just know the equation in world space :N dot V + d = 0   with N is the plane's normal and V is any point on the plane in world spaceV can be written as < x, y, z | 1 > row vector, if we use homogeneous coordinates.but what should the plane equation in Clip Space look like?   