3D renderer screen question

i have a rather strange question and i am not sure if it is possible in vvvv.

is it possible to have a “screen” in the renderer, and when there are objects in the 3D space moving about, can i extract the information of whatever is on this “screen” at anytime? it is basically like taking cross-sections of a 3d object.

it is acutally similar to the shadow effect that i found under girlpower folder, but i want to get the cross section of the objects at specific location.