I''m experiementing with creating additional walls in the 3D world tutorial, but I can''t seem to figure out the pattern. When I go to make a back wall, I''ll get distorted triangles. What is the rule? Seems sometimes the triangles are plotted counter-clockwise and sometimes clockwise. Can anyone shed some light on this?

open the file containing the level data , draw those coordinates on a paper and see the way triangles are created if nothing else helps

I actually did do that and it helped. But, I have found that you can''t seem to add extra walls...I''m wondering if they have to be sequenced. Sometimes the vertices are clockwise, sometimes counter-clockwise. Is there a specific algorythm involved here that I''m not seeing? Thanks for your help.