7D 1000fps

ciencin

ciencin

Well-known member
Just came across this video where it was shot with a 7D, 50fps, then converted with AE / Twixtor to extrem slow motion.

Is Twixtor really this good? I've used time remaping a lot with interlaced footage in AE and was very happy with the slow motion quality but is Twixtor so much better then the normal AE time remapping?


http://vimeo.com/13557939


My mind just doesn't understand how can you get such smooth videos from just 50 frames a second :-\
 
Watch out for complicated BG, take for example the jump at 38. You can see a "heat wave" type effects because there is too much clutter going on for hte morph.
And the shots against the soil color sky are the smoothest.
 
I did a test with a more complicated background and then the results were not as good, but still cool.
I suppose with the right scenes and and good contrasts, the results are better.

In this clip you can see the plugin struggling a bit: http://vimeo.com/14901862
 
Yea I see what you mean, but still very good considering what camera it was shot on :)

Would a higher shutter speed work better for these type of shots? I'm planning on trying this out with a hpx170 and try to keep the background as basic as it can be eg just sky/road.
I suppose these type of shots will be better on tripods as well...
 
In this clip you can see the plugin struggling a bit: http://vimeo.com/14901862
Click to expand...

Gotta admit that the effect looks damn good if we're going to consider that struggling.

I see the 'heatwave' effect you guys mentioned, but the flying water particles make it look more like a style choice than a mistake. It also seems like the kind of thing I could make less obvious with Magic Bullet.

I am curious about lens/shutter speed choice here too.
 
that video is twixtors prime example on there website...

and for the wakeboarding clip above. I thought that looke amazing! it was only noticable and or really bad for about two seconds, then the rest of the slow motion looked good. you should just ramp it and put the bits that are funky and full of artifacts to normal speed, then the bits that look good slow down.

im pretty sure thats what the guy did with the bmx video. not only that, but he also added the DOF blur effect around the detailed edges etc to cover up the artifacting.
but it came out brilliantly!
 
ciencin said:
Would a higher shutter speed work better for these type of shots?
Click to expand...

Typically, shooting a higher shutter speed does not necessarily lend to better slo-mo video. The faster the shutter, the more rigid the image because the camera is taking quicker snapshots, so water would not look like it does at 60fps if it were shot at 250 fps; something like water in motion would look like icicles falling than a blurry, organic wave. With moving figures, it would yield a stop-motion animation effect of sorts.

I have no idea how Twixtor would handle this, though, since it has to blur in new frames referenced from the reference frames. Would be cool to see someone try it out.
 
I've been playing around with Twixtor and I'm just getting choppy, ugly output.

Anybody want to post a screenshot of your settings and see if I'm doing anything wrong?

I assume one would do the usual slowing a 720/60 video to a 24fps timeline in your NLE and then slow to 40%. I then import the footage into AE.

In Twixtor my settings are:

Input: 24fps
input fields - none
motion vectors - best
image prep - contrast and edge enhance
cache last motion
frame intwerp - motion weighted blend
Output by speed, set to 20%.

My video is outputting in a weird choppy way where it pauses after every few frames. Any idea what I'm doing wrong?
 
If you own Final Cut Suite, you can do the same thing in Compressor. And I think even better quality.
 
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