Cannot reverse event?

Terry Esslinger wrote on 9/11/2009, 9:27 PM
Tried to reverse event. Help file says to right click event and choose reverse but revese is greyed out. Also says you can insert a velocity envelope and reverse it by dropping it to the bottom (-100%). Also did not work. I thought it might be that I had several special effects and pan and zooms working on the event so I dropped a simple nothing video in and found out thta you can apparently reverse video footage but you cannot reverse pan/crop/zoom action that you add to stills.

I had found it easier to build an fx (still sliding onto surface with reflection) by starting with what I wanted to end up with and reverse engineering it. I was going to save it as a template for photo montages. Oh well.

Comments

Grazie wrote on 9/11/2009, 11:06 PM
. . . and the Last shall be First . .

" . . you can apparently reverse video footage but you cannot reverse pan/crop/zoom action that you add to stills." Well, I know you realise you can't reverse action on a still 'cos there ain't any. Nothing is happening from Frame to Frame to the content of a still. But Video which has action is used to hang changes on. But we DO have a Timeline within Pan/Crop: This must mean we are able to control Changes across Time. I realised this sometime back. When I NOW need to do what you wanted I select ALL Pan/Crop Keyframes ( and that is CTRL+Scrub); hold done ALT; click on the first OR last keyframe and start squishing/bunching them all together; and here's the leap of faith . . . I continue UNTIL THEY ALL CROSSOVER! I keep going until the LAST KF is now first and the FIRST is now LAST. Click on that now LAST ( or the first) KF and drag along the timeline until I have completed this reversal. And there you have it - Reserved Keyframes on a Still. This approach, of course, also works with FXs too.

ALT+Drag on Keyframes allows us to proportionally reduce or extend the distance between Keyframes. Going this one stage further, "leap of faith" above has the effect of swapping out the keyframes

Adding effects to video gets reversed, 'cos there are changes across time. A still doesn't have this. But in Pan/Crop we are applying changes across time, and it is HERE we can change the ordering of functions across time.

I just did this in VP9b, just to make sure it is working . . .

Grazie
Chienworks wrote on 9/12/2009, 4:52 AM
Reverse applies to the media event itself, not to anything you have added to it.

If you have a complex set of keyframes and events added that you need reversed and it would be onerous to do so by hand you could render that event with the added keyframes out to a new file, then bring that new file in to replace the old event, then reverse the new event. This is only a case-by-case solution though. It still wouldn't give you a template.

I submit though that if you want to have a template of all the keyframes in reverse order then it's probably worth the trouble of doing it once by hand and then saving it.
Terry Esslinger wrote on 9/12/2009, 11:45 AM
Grazie,
I could not get your method to work. I could not get the keyframes to squish together when they were all selected. They acted in unison, as I would expect.

Kelly
I thought I would just leave the template backwards. Then when I used it in a project I would render out that event and replace it in the project and reverse it. However, after reading Grazies post I decided to play with the keyframes a little bit. I felt like one of those carnival guys with the shells and the pea. But it only took about 30 seconds and I had it reversed. Works great.
Thanks
Terry
Grazie wrote on 9/12/2009, 12:03 PM
So you dragged them past each other? YEs?

Grazie
Grazie wrote on 9/12/2009, 12:37 PM
So you DIDN'T use it??

I must be explaining incorrectly . . .

Grazie