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1. Re: Long Render Times Using Timewarp
Jeff Bellune Jun 13, 2012 8:03 AM (in response to Saad Khan)[Branched and moved to After Effects forum]
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2. Re: Long Render Times Using Timewarp
Mylenium Jun 13, 2012 8:31 AM (in response to Saad Khan)Yes, perfectly normal. Timewarp makes no use of any acceleration and liek any temporal effects, it runs in a single thread to ensure temporal constency.
Mylenium
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3. Re: Long Render Times Using Timewarp
Dave LaRonde Jun 13, 2012 8:37 AM (in response to Mylenium)I'd also think the nature of the footage would make a difference, too. Long-gop codecs like H.264 and MPEG would not be kind to render times, I think.
First AE would have to reconstruct the missing information between the codec's keyframes (not AE keyframes, mind you), and THEN do the Time Warping. To me that sounds like a lot of unnecessary thinking on AE's part.
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4. Re: Long Render Times Using Timewarp
Rick Gerard Jun 13, 2012 8:46 AM (in response to Jeff Bellune)Am I seeing this correctly? You want to slow down a 3 hour clip? That means your composition is going to have to be 12 hours long. The maximum length of an After Effects composition is 3 hours so you won't be able to render the entire movie.
I can't imagine anyone wanting to watch a 12 hour, or even a 3 hour movie that's been slowed down to 1/4 speed. Asside from that, if that's what you really want to do, Timewarp may not be your best option. It's a slow to render effect that does a whole bunch of calculations to try and manufacture the extra pixels and put them in the right spot.
I'd look at using an NLE. PPro has speed functions that render very quickly and would probably be better suited to a project of this length.
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5. Re: Long Render Times Using Timewarp
Saad Khan Jun 13, 2012 9:09 AM (in response to Rick Gerard)Hi everyone. Thank you for the helpful information.
The total length of the clip after being slowed down is 3 hours. I would then cut the rendered clip up in after effects and edit it down to a fifteen minute clip.
So Nick. If I were to do it in Premiere, could you please give me an example of a work flow you would use that would give me a nice smooth playback after slowing down the footage anywhere from 25% and 50%. Thank you
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6. Re: Long Render Times Using Timewarp
Dave LaRonde Jun 13, 2012 9:19 AM (in response to Saad Khan)Saad Khan wrote:
The total length of the clip after being slowed down is 3 hours. I would then cut the rendered clip up in after effects and edit it down to a fifteen minute clip.
This is very, Very, VERY bad workflow. It's a tremendous waste of time & computer resources.
Cut out the parts you don't want BEFORE you slow it down. Leave edit handles on the desired clips for subsequent editing. You'll save so much time you won't believe it.
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7. Re: Long Render Times Using Timewarp
Saad Khan Jun 13, 2012 9:24 AM (in response to Dave LaRonde)ok. So if I edit in Premiere and not move it into after effects, what workflow would you reccomend? It's much easier for me to slow the whole clip down and then cut and use what I need.
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8. Re: Long Render Times Using Timewarp
Dave LaRonde Jun 13, 2012 9:33 AM (in response to Saad Khan)It's your choice, but I wouldn't do it your way. I would figure out first what I wanted to slow down.
If you want to spend more than a day simply slowing it down, then knock yourself out. I think it's a gigantic waste of time.
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9. Re: Long Render Times Using Timewarp
Saad Khan Jun 13, 2012 9:37 AM (in response to Dave LaRonde)Thanks Dave. You mentioned me looking at doing it In Ppro. So were you reccomending?
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10. Re: Long Render Times Using Timewarp
Saad Khan Jun 13, 2012 9:38 AM (in response to Jeff Bellune)hi Jeff. I think this should have been left in the original forum. I guessed it would of ended back up a Premiere topic
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11. Re: Long Render Times Using Timewarp
Dave LaRonde Jun 13, 2012 9:47 AM (in response to Saad Khan)Okay, here's a step-by-step on how I would do it:
Use Premiere to cut out the extraneous video.
Export the individual clips to AE using a lossless codec like Quicktime'sPNG codec.
Slow down each clip in AE in an individual comp.
Add the comps to the render queue and render in the media container & codec of your choice.
You do what you want to do.
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12. Re: Long Render Times Using Timewarp
Saad Khan Jun 13, 2012 9:53 AM (in response to Dave LaRonde)ok Thank you. I'll try just that.
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13. Re: Long Render Times Using Timewarp
Saad Khan Jun 13, 2012 10:38 PM (in response to Dave LaRonde)




