i have a 3d object and 2 orthographical cameras with the same aspect ratio. The object is seen by only one camera. I need to calculate the projection of the object on the second camera. how can i do so?
More specific details: i have a 3d menu viewable by the first camera but not the second. I can zoom on to various positions with the second camera. The thing is that when i click a 3d object on the first camera, i need to create another 3d object on the second camera (even when zoomed) so that it looks like the newly created object is coming from the 3d menu object.