Stop motion look to sims

[andyhowell]

Just wondering if there is a solution to this

I have some simulation. I need to export this on 2's (So every other frame is a copy of the pervious one) This is to match animation being done in Maya.

It's to replicate a stop motion style that the project requires.

My solution is to us a timewarp node and initially speeding the input by 2, then adding a secondary timewarp node to then half it's input, then going back to the original speed. My problem is that somewhere along the line it seems to interpolate the frames on the second time warp node. Even with interpolation off. The solution I have found is to cache the first timewarp node and then half it's speed when reading in. Then when I step through the animation, everything is now on 2's. Just wondering if there is a better way of getting this staccato motion, to have it on 2's but without the need to cache before the final timewarp. Alternitaively exporting the sim/animation on 2's via Alembic and missing the timewarps altogether.

[Ziyad]

Hey, 

what if you use a timeshift after the original sim/anim and offset by 1 frame, then add them both (original and offseted) to switch node where you put an expression to switch every 2nd frame. Meaning every 2 frames will be the same, although you'll also lose every 2nd frame of the orginal animation so not sure if that's something you want. 

stopmotion_test.hiplc

[andyhowell]

Hey Ziyad,

 

Thanks very much for your reply. Works perfectly. Brilliant !!!

Thanks very much.

Checked out your website, amazing work on there, and also some of the testing stuff, looks great.

Thanks again. Much appreciated

 

Andy

[AndreaDD]

Hi,

I'm a bit late, but you can try also using only a Time shift with this expression $F-($F%2). It will hold the even frames, if you wanna hold the odd, you can add a +1 at the end.