[Plib-devel] Nested LOD selectors almost works...

[Vallevand, M. K <Mar...@UN...>]

Nested LOD selectors almost works.

In my program, I recursively partition a tile into sub-tiles at
at higher level of detail.  If a tile can be partitioned, I create
a LOD selector with 2 kids - one for the lower level of detail
tile and a second one that is a branch containing the higher
level of detail sub-tiles.  Every thing works together really
nice.  The tree seems to be correct, all the leaf nodes at all
levels of details are correct, and their bounding spheres
have the correct center and radius.  Lots of brute force
debugging and print statements makes me believe things
are correct.

But, the same debugging and print statements show me
that the range calculated in the cull of each LOD selector
is the same for each selector.  As I move the camera
around the terrain, the range changes and I get different
culling, but it is funny because the range calculated seems
to be wrong.

So, my questions...
How is the range calculated when culling to the viewing fustrum?
What could I be doing wrong?
What should I look at to get more info?

Regards.
Mark K Vallevand   ma...@rs...
Outside of a dog, a book is man's best friend.
 Inside of a dog, its too dark to read.  - Groucho