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3D/TrackMattes Query
Hi There
I’m currently building a 3D environment, where people walk around in a surreal space while the camera moves around them. I’ve come to a point where I want to transition to another part of the space by zooming into a handshake which is formed by a silouhette, within which you can see the new part of the space I’m moving to (let me know if that’s confusing). In 2D I’d just place the new space in a matte of the handshake but this doesn’t seem to work in 3D. I’ve got a few ideas of to work around it but they all seem really time consuming considering I might be wrong. Any ideas, tips or nudges in the right direction would be much appreciated.
Thanks
Simon
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4 Replies
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I’m using cameras to animate around the second shot/composition as well though, as far as I’m aware cameras don’t carry through nested comps in AE. Also, the track matte (the handshake) I’m using exists in 3D space and so dosen’t seem to work as a matte, is that correct or am I missing something?
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A quick fix would be to render out the animation at the point of the handshake with a matte channel, then use the render to track matte the layer on top of the new animation. This way the camera data for all intensive purposes is included with the animation without using a camera. For example…
1. ==Track Matte Render (2D layer so that the matte reflects accurately where the key happens.
2. ==Handshake (Inside) Animation (Probably not set to constantly rasterize, that way the animation retains it’s own camera information.)
3. ==Original Handshake Animation (This layer will still be needed for a background)Does this make sense?
-Rob
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In the first space animate the camera through to the point where the handshake is the entire frame (or larger). Create a new comp for your second space. In the second space animate you camera in that comp. In a third comp bring the two comps in and use the end of the first comp as a matte for the second.
Make a comp for each space, animate a camera in that comp and combine them in a master comp. This will help to keep things clear and manageable.
I’m sure there is a way to do it all in one comp if you wanted to.
TonyTony
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Thanks guys, I think I’ll take the pre-compose option as I’m still building the scenes at the moment and this allows me to go back and edit etc.
Cheers and god praise the cow,
Simon
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