Hi,
I am using Flightgear software package.
I want to know how is culling done basically.
Regards
Hemalatha
Hi,
I am using Flightgear software package.
I want to know how is culling done basically.
Regards
Hemalatha
There are a number of ways to do it, one for example is to calculate a bounding box for your objects and then do an intersection test to see if that bounding box intersects the view frustum, a simple cheating is to calculate abounding box around the view frustum and use that to do the intersection, this is simpler but will not cull everything outside the frustum of course.
I remember that there are a least a few tutorials on this using OpenGL so you should be able to find it with google.
Mikael
Hi Everybody,
Thanks for promt reply.
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
and rendering
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
Ortho=false;
nnear=SG_one
ffar=1000000.0f
hfv=SG_45
vfov=SG_45
I have lot of doubts………
If any one knows about culling and rendering plz explain me in detail .