1
$\begingroup$

I'm making a sequence showing how a tunnel collapsed into an old one beneath it. I've been following tutorials and experimenting with Cell Fracture to do the part where the top tunnel collapses down. That's great and I like the effects, but the problem is that it's part of a longer sequence of 800 frames, and I need this short sequence to start at frame 400 and run for 100 frames.

All the tutorials I've watched don't seem to mention how to control the start / end frame numbers. Could I ask for some assistance please?

Thanks

$\endgroup$

1 Answer 1

1
$\begingroup$

You can keyframe the Animated option of one of the objects, if the object has Animated on, it won't follow the physics. Then later on the Timeline, switch it off and keyframe again:

enter image description here

Once you've keyframed one of the objects, select all the other objects, make sure that the one with the action is the active one, and press CtrlL > Link Animation Data.

$\endgroup$
13
  • $\begingroup$ Thank you so much for this answer!! It's so easy when you know how to do it! It's working just right, so you've really made my day! $\endgroup$
    – DavidUK
    Commented Dec 30, 2022 at 17:54
  • $\begingroup$ OK - slight problem :( I've run this on a trial with just the cylinder I'm trying to collapse and the technique works. Select a piece, click animate and keyframe. Them move to later and click off animate and keyframe. As expected the selected piece drops at the correct frame, link animation data and all works. However, in my cityscape I can select one piece and keyframe as above and it will stay in place, but wont drop when animate is turned off. I've turned off visibility for all surrounding objects to avoid affecting other objects. Sorry for the total newb question! $\endgroup$
    – DavidUK
    Commented Dec 31, 2022 at 12:09
  • $\begingroup$ maybe share just one of your object so that we can see why it doesn't work? $\endgroup$
    – moonboots
    Commented Dec 31, 2022 at 12:11
  • $\begingroup$ OK - how do I do that? $\endgroup$
    – DavidUK
    Commented Dec 31, 2022 at 12:37
  • $\begingroup$ Use blend-exchange.com or another platform like workupload.com $\endgroup$
    – moonboots
    Commented Dec 31, 2022 at 13:10

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .