I am using FlightGear 0.9.4 Simulation Software.
We are reading a data file which is in binary format(*.btg) and adding every object
in scene graph(Tree structure).
Now our scene graph contains all the objects which will be used further for culling
Object contained in the scene graph are: modal branch, aircraft branch , terrain branch
and different lightening.
We are using frustum culling technique . In constuctor we are setting the frustum values
I have lot of doubts………
- How are we setting the frustums six plane and where (are we placing in the scene
- How are we selecting part of the objects from scene graph and placing it in frustum
Which is being used for further culling and rendering.
- A concept called extend sphere over sphere is used. I didn’t get the concept.
If any one knows about culling and rendering plz explain me in detail .
Plz explain me the concept of Bounding Box also