I've set the camera lens to 60 (or a angle of view of 33.4). Sorry, but I didn't have time to do a similar demo in Moho, but you can easily reproduce this demo in Moho, the tools are all there. So I've rendered out a really quick and dirty demo using Maya. Ok, so maybe the real problem here is that we either aren't talking about the same thing or I'm not explaining the solution clearly enough. That will only occur when you physically translate the camera. I think you'll find that changing the FOV or lens does not change the relationship of objects in screen space. Select the zoom tool and change the value, I believe it's set up to approximate a 35mm camera.Īgain, I seriously encourage you to actually try this with a real camera or look again at that 3d program. If you want to change the field of view, viewing angle, lens, etc. Then try to dolly the camera forward (change the z value in translation). Just out of curiosity, what 3d program are you using that changes how things look when you change the field of view.Īlso, check to see that you have 3d enabled in the project settings and make sure that you have several layers separated in 3d space. Dollying, or changing the camera's location is the only way to change how objects in 3d relate to each other. Zooming, changing the FOV, the lens, whatever you want to call it, only zooms. Changing the relationship of objects (ie paralax) is solely the result of moving the camera. And zooming may cause a very small shift in the nodal point (again causing paralax), this does not happen in 3D. *Take note that the zoom expirement is far from being as precise as doing it with a virtual camera, as every camera has its quirks and tendancies. I can get even more technical if you'd like, but it may just be easier to do a search on Nodal Point in Google. Still objects will not change their relationship when the camera does not move. Or if objects are moving around in frame, but again this only shows the paralax between the objects, which is accentuated due to lens changes. There are some things that will, and may cause you to believe the relationship changed, like depth of field changes while zooming, creating a narrower depth of field when you zoom in (less in focus) and a wider depth of field when you zoom out (more in focus). Take notice where things intercect with each other visually and you'll find that relationship doesn't change. You can try it out with a camera with zoom capabilities.* Lock the camera down on a tripod or tape it to a table (don't let it move). Since zooming or changing the FOV does not change the nodal point's location, it will not change the paralax between objects. A virtual camera is always (at least the ones I know of) a nodal camera, that resides at the camera is the nodal point. This paralax, however, will show up when a real world camera pans if the nodal point (where the light rays cross in the lens or camera body before hitting the image plane) is not centered on the tripod, thus allowing it to translate. This is due to the fact that again the camera's nodal point isn't translating while rotating (a truely nodal camera). It also won't show up with rotations on the camera (at least not a virtual camera). The relationship between objects only becomes apparent due to paralax, which only shows up when the camera's postion changes. The camera is working exactly as it should. A true camera viewing angle adjustment would change the relationship between objects at different depths.Īctually, this is incorrect.
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