3D book with different image for the back of the front cover?

[Jon Geddes]

You need a separate layer for the reverse side of the Book. You should read this tutorial that explains the expression you need to use:

https://www.motionscript.com/design-guide/invisible-facing-away.html

Basically, you need to give an expression to the opacity of each layer so its not visible when facing away from the camera:

if (toCompVec([0, 0, 1])[2] > 0 ) value else 0

Jon Geddes
Motion Graphics Designer
http://www.precomposed.com

[Mark Fogarty]

I don’t know much about expressions, but what I did was to put the back side of the page/cover 1 pixel deeper in Z space. Then I parented the back side to the front side. Now when I turn the front page, the back page moves with it.

While it doesn’t show the back side of the pages very much, I used this technique to create this video…

https://www.youtube.com/watch?v=Q5xXZ1zFqfc

Mark Fogarty
Media Missionary
Muddy River Media
http://www.MuddyRiverMedia.org

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[David Del]

I tried parenting the front and the back cover, but found when I turned the cover over, the back would sometimes show through at certain points of its turn, and then not at others. I had to manually keyframe it to work.

[David Bogie]

Mark, delightful, thanks for putting up the movie.

bogiesan