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racer-x
Just passing by.
Joined: 24 Mar 2003
Location: 3rd Rock from the Sun
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I posted this clip with fluid slow-motion at various speeds. I used Avisynth with MVtools to slow it down in stages all the way down to 1/16 speed. I also included a variable speed ramp at the end, that I made with Vegas Velocity Envelopes on the 8x slo-mo. Here is my clip:
http://www.vimeo.com/794158
We are having a challenge over at HV20.com about what S/W can create the best fluid slow-mo effect. If you'd like to participate go here:
http://www.hv20.com/showthread.php?t=8459
_________________
Never argue with an idiot.......he'll only bring you down to his level and beat you with experience.
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Soopafresh
Dismember
Joined: 01 Jan 2004
Location: United States
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Looks really great! I hope you post your script 
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racer-x
Just passing by.
Joined: 24 Mar 2003
Location: 3rd Rock from the Sun
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Sure, I'll post the script I used for 1/4 speed. You'll need to download the MVtools plugin. Get it here:
http://avisynth.org/warpenterprises/
Put the mvtools.dll into the Avisynth Plugins folder. Then you can use a script like this, substitute for your favorite BOB Deinterlacer. Load up the m2t in DGindex and create a project .d2v.
| Code: |
MPEG2Source("HDV50i_source.d2v", cpu=0)
AssumeTFF.Bob(b=0.33, c=0.33, height=720)
LanczosResize(1280,720)
smoothfps(100) # (This is how many frames you want to create)
assumefps(24) # (This is the play back framerate)
function smoothfps(clip source, float fps) {
fp=fps*100
backward_vec = source.MVAnalyse(isb = true, truemotion=true, pel=2, idx=1)
# we use explicit idx for more fast processing
forward_vec = source.MVAnalyse(isb = false, truemotion=true, pel=2, idx=1)
cropped = source.crop(4,4,-4,-4) # by half of block size 8
backward_vec2 = cropped.MVAnalyse(isb = true, truemotion=true, pel=2, idx=2)
forward_vec2 = cropped.MVAnalyse(isb = false, truemotion=true, pel=2, idx=2)
return source.MVFlowFps2(backward_vec,forward_vec,backward_vec2,forward_vec2,num=int(fp),den=100, idx=1,idx2=2)
} |
_________________
Never argue with an idiot.......he'll only bring you down to his level and beat you with experience.
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Soopafresh
Dismember
Joined: 01 Jan 2004
Location: United States
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Hey, I tried it out on some footage. Works nicely. It's cool the movement doesn't turn into jello - everything still retains it's form. Thanks so much. Which parameters do you tweak to get 1/2 and 1/8 speeds ?
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racer-x
Just passing by.
Joined: 24 Mar 2003
Location: 3rd Rock from the Sun
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This might help:
_________________
Never argue with an idiot.......he'll only bring you down to his level and beat you with experience.
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2Bdecided
Member
Joined: 21 Nov 2007
Location: United Kingdom
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The "disconnected" images in the source (due to the fast shutter speed) make it a challenge for MVAnalyse to track the motion. It can't "join" the movement of the water between frames. A longer shutter speed would create more blur, but allow better motion estimation. Pick your poison.
Yadif would be better than bob.
Cheers,
David.
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sksavis
Member
Joined: 13 May 2008
Location: United States
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Soopafresh
Dismember
Joined: 01 Jan 2004
Location: United States
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Mvtools is better than the MSU Frame rate conversion tool. If you're unfamiliar with Avisynth, just cut and paste existing scripts until they work for you.
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