How to create fluid slow motion video

[Adriano Apefos]

shoot in 60i and put the footage in a 24p composition in after effects and render it. you will have a nice slow...

[Eugenia Loli-Queru]

I wrote a tutorial about how to do butter smooth slow-mo:
http://eugenia.gnomefiles.org/2009/0...h-slow-motion/
Works fine for me the way it is described there, although some color conversions seem to be going on...

[imster]

Really appreciate you taking the time to completely dish out yo knowledge onto yo blog for us to learn. But i just feel instead of all that effort if ya just made a video tutorial it would've been so much simpler for us to learn and would save so much time for yourself as well! just a thought!

[Eugenia Loli-Queru]

I am not big on video tutorials, as english is not my native language, I may forget things while working live (while I can always edit text), and it actually takes more time to produce.

[suitelife123]

Try Mike Krumlauf's method, produces great results, no ghosting, with very little work. I just did a video, of slow motion with the technique, check it in the footage section.

[Eugenia Loli-Queru]

I don't know how Mike Krumlauf does it, but I didn't see anything in your latest video that the 60i-to-60p ways described in this thread here can't do.

[brankulo]

i have been following this thread for a while, trying to use hints you guys are sharing. now that i feel little comfortable creating slow motion videos, i would like to move little forward and try something more. i would like to start with original speed , than gradually reduce to slow motion, and after a while go back to original speed. lance has posted something like this before (one of his videos of drifting car in snow). i have no idea though how. i am using method described in this thread for slow motion. i also use vegas 9 for editing. thanks

[TequilaKez]

See this too.

http://www.hv20.com/showthread.php?t=24204

[Video Frank]

i would like to move little forward and try something more. i would like to start with original speed , than gradually reduce to slow motion, and after a while go back to original speed. i also use vegas 9 for editing. thanks

right click on the clip on the vegas timeline and insert a velocity envelope.

[Raw]

Hi

Well, here is another question on my mind

After Effects got an inbuilt plugin for making smooth slowmotion. And for people who doesn't use AE there is a completely other way of making smooth slowmotion. That progress needs AviSynth to script video, so there are no render needed. Here is a tutorial I can really recommend: http://eugenia.gnomefiles.org/2009/0...h-slow-motion/

But my question is: which of those to ways are producing the best fluid slowmotion? AE or AviSynth process?

[Raw]

Cause really, I have paid a lot of money to get After effects but AviSYnth is free ..so I'm confused :S

[ejolson]

Cause really, I have paid a lot of money to get After effects but AviSYnth is free ..so I'm confused :S

Either After Effects or AviSynth can be used to obtain quality slow motion. However, each program does other things, too.

[simm]

Anyone else thinking this should be a sticky?

Yes, I was just looking for this thread all over the place then finally did a search...I thought this already was a sticky! Why not? It really should be a sticky, because it's a GREAT resource and very likely a common question..

[Lance Campeau]

Yes, I was just looking for this thread all over the place then finally did a search...I thought this already was a sticky! Why not? It really should be a sticky, because it's a GREAT resource and very likely a common question..

I would like to this to be a sticky... I really get a lot of email about this topic...

[Northern Lights]

Excuse me for arriving excruciatingly late to the party, but...a cursory look at the procedure at the top of this thread (great demonstration footage on YouTube, BTW!) indicates that it is dependent on reducing the vertical resolution by 50%, and then scaling back the horizontal resolution to match. Not being able to follow all the discussion (and especially the many examples of scripting) thereafter, I have to ask, as a quick summary: do any of the methods mentioned here result in full 1080-vertical-line resolution slow-motion? Because I'm looking at doing a film at that resolution, and slow-motion would be a large part of it. I would need to know on which procedures (mentioned here or elsewhere) I should concentrate. Thanks in advance!

[Janke]

If you slow down 60i or 50i to 30p or 25p you do lose half of the vertical resolution.

If you slow down 30p or 25p, you get a bit jerky motion at 15 or 12.5 frames/sec, but still full resolution.

I'd prefer the former, myself. The resolution difference doesn't bother me as much as the jerky motion.

[Khaver]

There's no way to get 60 full res frames per second from interlaced material. You might look at getting a cam that does 60p for those shots. Or better yet, there are cams that can do bursts of more than 60fps.

[Northern Lights]

There's no way to get 60 full res frames per second from interlaced material. You might look at getting a cam that does 60p for those shots. Or better yet, there are cams that can do bursts of more than 60fps.

I didn't say anything about "60 full res frames per second." I asked if any of the processes detailed here would provide 1080 vertical lines in the final output.

[Khaver]

When you deinterlace your 60i to 1920x540 60p just resize back to 1920x1080. There are also deinterlacers that will give you 1920x1080 60p by doing the resize for you. Avisynth with VirtualDub or one of my utilities linked in my signature (my utilities use avisynth and ffdshow along with either ffmpeg, VirtualDub or a customized version of avs2avi) can be used.

[kakomu]

I didn't say anything about "60 full res frames per second." I asked if any of the processes detailed here would provide 1080 vertical lines in the final output.

Most of the slow motion scripts will result in a full frame. As has been said above, Bob deinterlacing merely extracts the separate fields and makes them progressive frames. Of course, each field comprises 50% of the frame.

You can do a simple resize to 1920x1080. The resultant footage will look a bit blurrier than a full frame, but at 1080p, the result is typically not too bad, and at internet sizes, it's almost negligible.

The big issue with bob deinterlacing is the offset. Odd fields are shifted up by one pixel. Let's take a static scene such as a camera on tripod pointed at a book case. The odd field will comprise every other line between 1 and 1079 (1, 3, 5...1077, 1079). The even field will be every other line between 2 and 1080 (2, 4, 6...1078, 1080). After bobbing the fields and resizing to 1080, objects will appear to flicker. What's happening is that each frame is shifted by 1 pixel and objects will actually be moving up and down by 1 pixel (or multiple depending on the anti-aliasing filter applied when resizing).

I, personally, have been using an AviSynth script that attempts to eliminate the flickering associated with standard bobbing. It uses TMM, NNEDI and TDEINT:

LoadPlugin("E:\programs\Video\editing tools\avisynth filters\TDeintv11\TDeint\TDeint.dll")
LoadPlugin("E:\programs\Video\editing tools\avisynth filters\TMMv1\TMM\TMM.dll")
LoadPlugin("E:\programs\Video\editing tools\avisynth filters\nnedi_v1.3\nnedi.dll")

directshowsource("source.mts")

edi=NNEDI(field=-2)

mmask=TMM(mode=1)

TDeint(mode=1, edeint=edi, emask=mmask)

assumefps(24000, 1001)

The filters can be found at Doom9. If you want to change this to 25fps, replace assumefps(24000, 1001) with assumefps(25, 1). It's slow, which is why I encode into a lossless intermediary (e.g. FFV1), but the results tend to be much better than using a straight bob() filter.

[Khaver]

kakomu,

You might want to update to NNEDI2. I believe it's a little faster.

You're right about not just "bob"ing it. You need something to intelligently fill in the missing pixels between the shifted fields. NNEDI/NNEDI2 do this very well, although like you said, it can be slow.

[um3k]

The absolute best deinterlacer/bobber out there is TempGaussMC, but like all good things, it comes at a price: speed. With default settings, it's slower than molasses in a refrigerator on Pluto during winter at aphelion after the sun becomes a red dwarf. But test it, see how amazing it looks.

[Kenody]

I did a Slow-Mo effect on THIS CLIP of 300 fps.

Racer, I am also in the process of making some fluid-smooth & creamy slow-motions, compared to the fact that Canon's HV series WASN'T meant for slow-motion recording. It can actually be done, in a very decent way. Thank you for sharing this, I really like your videos.

May I ask, what is the music played in the 2nd one? (With the turntable menu & dog)

Kind Regards,

~ Kenody

[racer-x]

Racer, I am also in the process of making some fluid-smooth & creamy slow-motions, compared to the fact that Canon's HV series WASN'T meant for slow-motion recording. It can actually be done, in a very decent way. Thank you for sharing this, I really like your videos.

May I ask, what is the music played in the 2nd one? (With the turntable menu & dog)

Kind Regards,

~ Kenody

Wow, I did that one 9 years ago, I have no clue what music I had used.....

My dog is 9 years old now, he was only 6 weeks old when I shot that on a crummy, cheap Sharp mini-dv camera. I looked though some of my music stock, but couldn't find that piece, sorry.