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Adding a solid background to a rendered animation

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Victor SoaresAdding a solid background to a rendered animation
by on Nov 16, 2011 at 6:45:53 am

Hi All,

I am Victor Soares from South Africa. I have recently started playing with After Effects CS5.5 having never used footage editing software before.

What I am trying to do is small animation clips for various projects. What I do is do the animation using 3ds max and then I wanted to use after effects to do small manipulations.

One of the things I am trying to get my head around (and this is probably really basic) is the following:
- I render my animation as a series of images in 3dsmax and export as png files
- This saves me a lot of hard drive space as the PNG files are small, but the images do not have a background (only the subject matter is rendered)
- I then stack them in AE and can render them to a .mov clip, however the missing background now just plays as a solid black background
- Is it possible to have the background rendered as invisible?
- If not, is possible to add a solid color background the the .mov clip?

Thanks
Victor


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John CuevasRe: Adding a solid background to a rendered animation
by on Nov 16, 2011 at 4:37:46 pm

- Is it possible to have the background rendered as invisible?

Yes. If you are rendering to quicktime.mov - animation codec for instance, in your lossless settings you would change your video output for channels to "RGB + Alpha" When it plays back in your quicktime player, it will still have a black background but if you import into a NLE(or back into AE) it will have an alpha channel that maintains your transparency, now you can now place it over video.

If not, is possible to add a solid color background the the .mov clip?


"Shift + Y" will will open up the solid settings, pick a color and put it on the bottom of you comp stack.

Johnny Cuevas, Editor


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Stefan HinzeRe: Adding a solid background to a rendered animation
by on Nov 19, 2011 at 5:35:59 pm

hey there,

check if there is an option in the 3D program to give the PNG´s a ALPHA-Channel.
if the have, youre fine and it should be no problem ;)
if the PNG´s are without ALPHA-Channel, use a KEY-Effect.
play i little with them and you get there!

hope this helps

greetings

(take a step back, to see the bigger picture)


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