How to save many frames from 3D geometries into one PDF file?

edited May 2016 in How To...

Hi there. That's my first time using the forum.

I need to save a PDF file from an 3D animation that consists of the trajectories of some spheres in the 3D space. I tried to use the PDF library, but reading the tutorial of this library I've saw that is possible to save the result of a 2D animation using the beginRecord and end Record function, as well you can save a single frame of an 3D animation using beginRaw and endRaw. However, I couldn't save many frames of an 3D animation in one file as I did with a 2D animation.

That's possible? I need to save the trajectory of the spheres in vector for an illustration. Any help would be appreciated.

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