Effects --> Time --> Posterize Time. Or anything with Time Remapping, including possibly some random timing.
Thanks for the reply.
I am not quite sure what you mean by Posterize Time. That seems to give me the option of changing the frames per second down to 1. But what I am actually looking for is a way to produce the video using for example 1 frame per 5 seconds.
The second part of your reply doesn't actually mean anything to me.
Hope that makes sense.
When you say you don't just want to speed it up, you want "time lapse" you're not understanding time lapse. Time lapse speeds up video. If you have a 2 hour clip and you want it to play back in 2 minutes it's simple mathematics. By far the easiest way to do this is to create a new comp from your video in the project panel, enable time-remapping, move the CTI to the out point of your movie, set a keyframe, then move the CTI to 2 minutes and then drag the keyframe at the out point to 2 minutes and let it snap into place.
To avoid frame blending you need you need to use math to make sure that you have whole number values for the frames. If your comp matches the frame rate for your video the easiest way to do this is to enable time remapping and then add an expression. The expression could not be easier. For your example of playing 1 frame for every 5 seconds just multiply time by the number of frames in 5 seconds. Say your footage was shot at 29.97 fps. 5 * 29.97 = 149.85 frames. Round that number to a whole number and use this expression:
time * 149
That's all there is to it. Perfect time lapse from your footage. You will always get a perfect time lapse if you use whole numbers.
Posterize time isn't going to emulate time lapse, it is going to repeat or drop frames so you can use posterize time to make things play slower, not faster. The maximum frame rate for posterize time is 99.
Thank you Rick, although the constant use of 'simple' may be wasted on me
I attempted the time remapping thing and just made it 5% of the original which is now rendering. In RAM render it seemed to work ok. So are you saying I should not have used a percentage, but precise frame rate?
I'm not sure what you mean by made it 5% of the original with time remapping. Sounds like you are using time stretch.
If your time resampling does not precisely work out to be an exact whole number of frames then you will have some frame blending somewhere. I prefer time remapping over all of the other methods because it renders faster than any other method and I can easily and accurately get whole frames using an expression.
The bottom line is that if the render looks fine to you, and if you are working for a client, looks fine to the client, then you're done. There's not much sense in fiddling with it any more.
Ah yes, you are correct. I used time stretching and made it 5%
It just rendered out and actually looks perfectly fine for what I want.
I will look at the time remapping tomorrow and see how it compares.