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How do I make background NOT to zoom with camera?

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Alex PhongphachoneHow do I make background NOT to zoom with camera?
by on Dec 18, 2010 at 6:12:14 pm

Hi there. Newbie here again. I am currently working on a project in CS5 and is pulling my hair out. I have a mask of a map with several other objects, all in 3D and some parent to other footages. The background is a solid color. I then added a camera movement from afar and flies towards the map. After all of this hard work and trial/error, the action is starting to look good.

The problem?? Now I want to add a new background of an outer space photo ( JPEG ). When I add the photo to my timeline in 3D, I can't figure out how to make the outer space background photo NOT to zoom in when the camera flies towards my map ( giving the effect of BIG outer space ) It has to be in 3D because the camera angle will move again. The action of adding this new photo also makes other items in the timeline to go a little " wacky ". I tried placing a keyframe, tried footage replacement, layers, masking, etc.

Any help will be greatly appreciated. Simple to others, but hard for this newbie to figure out. Thanks


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Dave LaRondeRe: How do I make background NOT to zoom with camera?
by on Dec 18, 2010 at 8:51:14 pm

What happens if you keep the star background as a 2D layer, scale it to taste and make it the bottom layer?

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Graham MacfarlaneRe: How do I make background NOT to zoom with camera?
by on Dec 18, 2010 at 10:45:57 pm

If you need the space BG to react to camera turning but not to zooming perhaps the easiest method might be to make the space BG a 3D layer and push it really far away in Z then scale it up to fill the comp. This way when your camera zooms in there wont be much change in the BG but when you turn the camera it will work just fine.

Graham Macfarlane
3D animator and VFX specialist
London UK


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Dave LaRondeRe: How do I make background NOT to zoom with camera?
by on Dec 19, 2010 at 1:03:11 am

...and if that doesn't work, put the 3D layers, lights & camera in its own composition. Nest it in a 2D comp above a 2D star background layer.

That oughta do it.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Henry CobboldRe: How do I make background NOT to zoom with camera?
by on Dec 20, 2010 at 10:22:17 am

Dave is always right!


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Alex PhongphachoneRe: How do I make background NOT to zoom with camera?
by on Dec 22, 2010 at 12:55:41 am

Thanks for the help folks. Looks like the way to go is to push the Z axis way back and further than the distance of the camera. Another is just to leave the background space in 2D. Any of these will do for me for now.

Thanks


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