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Very Irritating Problem…..
It seems to me that sometimes AFX is simply illogical, but I know it has many quirks and little features that account for some of these apparent inconsisties. But in particular really irks me.
Here it is.
I set up this cool 3D scene…a chess board with chess pieces and people on it.
Suddenly I put in a picture, well behind this scene, however..the active camera keeps showing that this inserted picture is in front of my 3D scene.
Any recommendations on this one? Is it just the camera I chose has a natural focal point beyond the 3d scene?
I hope figure it out soon, cuz the picture suddenly seemed really cool!!
thanks…
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7 Replies
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Actually i meant to say the camera was nicely focussed in the middle of the chess board…….
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It seems that you’ve not read the manual or any 3rd party books or tutorials on how to work with AE’s 3D environment.
It sounds like you’ve plonked in a 2D layer over your 3D layers, in your timeline. Hence, re-ordering the 3D engine’s render order.
Put the 2D layer at the bottom of your timeline. But if you haven’t read the manual or at least tried to get going in a more steady and assured manner, chances are that you’re going to hit more walls down the road – just a gentle nudge.
Cheers
Roland Kahlenberg
https://www.broadcastGEMs.com – Adobe After Effects project files
https://www.myspace.com/rorkrgbspace -
I’ve noticed some weird 3D issues as well. I’m not sure if they’re unique to CS3 or I just didn’t encounter them in 7.0. Try putting your chess board layer below the other layers in the comp window. This usually works for me. Has anyone seen any threads that discuss the render order for 3D comps? I vaguely recall reading something some where that explained what’s going on with this problem.
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Any 2D layers, including adjustment layers and Null objects if the 3D switch isn’t on, that reside in between 3D layers will cause the 3D layers above that 2D layer to render independently of the 3D layers below that layer. This breaks lights, render order and other nice ‘logical’ 3D effects. It can sometimes be used to your advantage though.
Darby Edelen
DVD Menu Artist
Left Coast Digital
Aptos, CA -
Just click the 3d check box and place it behind the chess board in z-space.
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Hi there!! I am an Asia! And yes I had already clicked the 3D switch and I knew exactly where this layer was…it was way at the back of my 3D scene. I believe Mike P gave the suggestion to move the layer to the bottom poistion in the Comp window. Anyways..i tried that and it seems to have worked. I just woke and need to test a little more. Will do after work!!
Thanks!!
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Render order, as I understand it (someone please correct me)…
If everything’s 2d, it starts at the bottom and moves up.
If it’s all 3d, it renders the layer that’s furthest from the camera and then moves forward. (This means that it still renders a layer even if it’s completely obscured by another layer. Trimming in/out points can speed up your render.)
If you have a mix of 2d and 3d, it will treat the 3d layers in blocks. So if you have a comp like:
3d layer 4
3d layer 3
-2d layer
3d layer 2
3d layer 1It will first render layers 1&2 in standard 3d fashion (furthest to closest). Then it will render the 2d layer, and composite it over 1&2. Finally, it will render layers 3&4 in standard 3d fashion, and composite that over everything else.
Confused? I think Andrew Kramer did a tutorial about this, it’s “How to make a 3d reflection” or something.
Andy
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