To render or not to render

OpenGL OpenGL: Basic Coding
1

Hi all ,

Im trying to figure if the object will be render on screen befor glBegin( ) , glEnd( ).
From reading stuff i figure that :

vertex --> ModelViewMatrix -->ProjectionMatrix–>Prespective division(divaid x/w ,y/w z/w) --> Here I stuck … (ViewPort transformation ) , what is the the view port matrix ???

MSDN in glViewPort explenetion say :
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Xwin=(Xnd+1) |width/2|+Xleft
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according to my glViewPort param

and i ask:Xwin=(Xnd+1)???|width/2|+Xleft

I hope some one can help … What is the model view matrix ?

Thank u all

Arie

2

check the faq IIRC theres an explanation with code that shows how to get the 6 planes from the viewing frustum once u have theses its a simple matter to test if the point is in the ‘inside’ of all the 6 planes