Performance question renderer

ive a very basic question about the ex9 renderer

the question is if the renderer is just calculating the stuff in the “visible” area of the renderer window or if its also wasting performance on stuff that is outside the render window ?

how does it work ?!

thanks for replies

(as far as i know:)
only geometry that lies within the viewing frustrum is rendered; no performance will be lost on any geometry ‘outside’ of the render window. however, besides the view frustrum culling, no other fancy stuff is performed par default.

see also:
ViewFrustumCulling (EX9.Geometry) Mesh
Cull (EX9.RenderState)