4 ms·

Now I'm curious. How does BSP encode the orientation of a plane wrt its normal?

• webkike 2y ago
  The normal is the orientation
  • Maken 2y ago
    It is the orientation of the plane, but not the orientation inside the plane. How does BSP decides in which direction it must display the textures inside a plane?
    • cmovq 2y ago
      The BSP file stores faces, which define a number of edges (or vertices). Faces are used in rendering, and contain the texture being drawn. Faces also refer to a plane and a “side”. If the side is 1, the normal of the plane is flipped which has the effect of using the back side of the plane.