   Creating a Frustum Shpere & Frustum Cone
  I''ve had a look at some tutorials and stuff but I can''t find one that''s D3D specific.  I also had a look on the forum but with no luck.   Maybe I can''t look properley.Basically, how do you make the bounding sphere and the cone?  I can work out the eaiser culling maths from the tutorials I''ve got but I can''d understand this part cus I can only find Pseudo code.Thanksmatt 