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Erik H L
Erik H L
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Problem with CC Page Turn Effect

Jul 15, 2010 4:01 AM

Hi,

 

I have a problem with the CC Page turn effect in After effects. I am trying to make a movie where a book folds up and you can see the two spreads.

 

The cover image that I apply the effect to, is scaled down because I need to scale the book up later. From the CC Page Turn panel, I have set a background to the cover, wich of course is my left spread, and the right spread is an image that is positioned behind the cover.

 

When I use the Page turn effect, the result is that as the cover image folds up, it disappear "out of" the layer border. I tried to correct this with the "Grow Bounds" effect... only to see that this causes the background, set in the CC Page Turn effect panel, to be scaled for some reason? If I lower the Grow Bounds pixel amount, the background scales down again, and if I remove Grow Bounds completely, the background seems to be in the correct scale.

 

But then if I don't use Grow Bounds, I can't see the cover nor the background when the Page turn is complete. Because they are to the left of the original cover image's layer border.


Anyone else who has had the same problem, and does anyone have a hint how to solve it?

 

Most grateful for help,

/Erik

4854 Views   6 Replies   Latest reply: Andrew Yoole, Dec 21, 2010 3:27 PM
 
Replies
  • Mylenium
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    1. Mylenium,
    Jul 15, 2010 7:07 AM   in reply to Erik H L
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    Your thinking is simply flawed. The effect works correct in every way - it cannot exist outside layer bounds. What you want is impossible with just one layer and one instance of the effect. You need to use multiple instances and place them in such a way that the illusion is retained while also matching their timing.

     

    Mylenium

     
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  • Erik H L
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    2. Erik H L,
    Jul 15, 2010 7:22 AM   in reply to Mylenium
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    Apparently the effect can exist outside layer bounds, since it works when I use Grow Bounds. I am not using one layer/instance, for the whole book I have a single layer for each page now. How exactly do you mean that I should use multiple instances to achieve the effect?

    See this example video for instance:

     

    http://www.youtube.com/watch?v=K4HlbJDzsoE&feature=channel

     

    as you see, I can only fold the book with a spread to the right, but I would want to have a spread to the left also, i.e. a back side for the cover, that I have Page turn applied to.

     
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  • Mylenium
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    3. Mylenium,
    Jul 15, 2010 8:27 AM   in reply to Erik H L
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    Apparently the effect can exist outside layer bounds, since it works when I use Grow Bounds.

     

    When using Grow Bounds you expand the layer in terms of the processing, so like it or not, it only exists within the layer bounds - hence the cunning name of the effect *boohoo*. As I wrote, you must work with multiple layers to get what you want or employ pre-composing techniques. It's inherent in how the effect auto-calculates its spread relative to the absolute boundary dimensions of the layer, no matter by what those bounds are defined.

     

    Mylenium

     
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  • Ruth E. Cruz
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    4. Ruth E. Cruz,
    Dec 20, 2010 11:14 PM   in reply to Erik H L
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    Try http://www.axmag.com/

    This may not be exactly "Page Turn effect" that you're looking for, but it you submit pdf files to these folks they'll put them together for you FREE. I've been on the same quest that you are but I only need a very limited number of pages to turn so this will work for me. Maybe it'll work for you too!!

     

     

     
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  • Ian9114
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    5. Ian9114,
    Dec 21, 2010 11:28 AM   in reply to Erik H L
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    Try hitting the "collapse transformations" checkbox on the page turn layer.  If is the same issue that I had on my last project, it may work for you.

     
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  • Andrew Yoole
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    6. Andrew Yoole,
    Dec 21, 2010 3:27 PM   in reply to Erik H L
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    Always precompose content for use in CC Page Turn.  As Mylenium mentioned, using Grow Bounds in the effect will have unexpected consequences.

     
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