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Camera affects only objects, not the background.

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Krista van der WilkCamera affects only objects, not the background.
by on Jun 17, 2013 at 1:20:32 pm

Is there a way to set up a composition with a camera and lights and some objects, where the cameramovement does NOT affect the background, but does only affect the objects.

When I make the background go 2D ( so the background stays staidy like I want it to ) the shadows and light effects are not visible on the background since it is not 3D anymore.

Thanks in advance !

Krista

No knowledge is a Statement


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Roland R. KahlenbergRe: Camera affects only objects, not the background.
by on Jun 17, 2013 at 2:42:32 pm

Todd's got the Lights covered - ie Accept Lights property. For the Camera part of your Q, simply parent the background layer (3D layer) to the camera.

HTH
RoRK

Intensive mocha & AE Training in Singapore and Other Dangerous Locations

Imagineer Systems (mocha) Certified Instructor
& Adobe After Effects CS6 ACE


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Krista van der WilkRe: Camera affects only objects, not the background.
by on Jun 17, 2013 at 3:04:08 pm

the parenting is very helpfull thanks !
Only Todd deleted his message so I couldnt see what he said, any way you could repeat it ?

Thanks !


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Roland R. KahlenbergRe: Camera affects only objects, not the background.
by on Jun 18, 2013 at 12:13:26 am

Darby's solution is also viable - actually I've used it quite often but forgot to mention it in my earlier post. BTW, Todd mentioned using the Material Options property Accept Lights. You can set the BG 's Accept Lights property to Off.

HTH
RoRK

Intensive mocha & AE Training in Singapore and Other Dangerous Locations

Imagineer Systems (mocha) Certified Instructor
& Adobe After Effects CS6 ACE


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Walter SoykaRe: Camera affects only objects, not the background.
by on Jun 17, 2013 at 2:43:02 pm

Make the background 3D, position is backwards in Z-space as necessary to clear foreground elements, scale it up to fit the frame, and parent it to the camera. When the camera moves, the background will move with it. From the camera's perspective, it will remain steady.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
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Darby EdelenRe: Camera affects only objects, not the background.
by on Jun 17, 2013 at 6:20:39 pm

What I'd usually do in this situation is set the background 2D and position it as you like.

Then you can use a 3D white solid (or several) with Accepts Lights: Off and Accepts Shadows: On set to the Multiply blend mode above your 2D background. You can position the 3D white solids as you see fit to get the best shadows possible.

This separates the shadowing and the color/transform properties of your background.

Darby Edelen


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Barry RubinRe: Camera affects only objects, not the background.
by on Jun 18, 2013 at 2:49:01 pm

Yes you can. Make the footage you to be effected as 3d layers and make the images you don't want to be effected 2d layers.


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