GH2 60p slowmo

Phenixone

Well-known member
Hi,
Does anyone has a workflow of final cut (or other) to do slow mo from 720p60 mode from the GH2?
Or if you have a better solution through a Hack?
Would greatly appreciate it.
 
In premiere, just right click the clip, go to modify, interpret footage. Then change the framerate from 60 to 30 or 24. I'm not sure how to change the framerate in final cut.
 
here are some slomos i have done with
Driftwood GOP1 AQ2 'AQUAMOTION' Experimental patch.



i have updated Driftwood GOP1 AQ2 'AQUAMOTION' Experimental patch.
To a gop 2 patch with only 1 I and 1 p frame...
But it still needs some testing..... but for slomo in post it works great.

 

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@kdawg I don't know what he's using, but the results look very similar to the pixel motion effects achieved with engines like Twixtor or MVTools2.
 
Actually, unless you need to do a lot of ramping up and down, the rendering performance of MVTools2 outperforms the (basic) Twixtor both in terms of results and speed. The advanced Twixtor allows you to mask off areas to improve performance further but is much more expensive. On the other hand, MVTools2 is free.

If you go the MVTools2 route, let me know and I'll try to help shave some time off the learning curve.
 
hmmm I like free! So MVTools2 is a plugin for AVIsynth? of which I have not used either. Shaving that learning curve would be great!
 
@kdawg That is correct. The way I normally use it is to load the AVISynth file in VirtualDub and save it from there. If you are using MVTools2 you will want an updated script, though the one @aljudy wrote should work well with older versions.

Here is a guide to getting VirtualDub setup for reading MTS files.

http://www.bikingbrian.com/2009/07/12/opening-h264-mp4-files-in-virtualdub/

Then download and install AVISynth and MVTools2. Then copy MVTools2.dll to C:\Windows\System32 (replacing "C:" with the drive letter for your system drive if you are using a different one).

Here is a script we used on this music video for some of the slow-motion shots (I seem to remember the hand moving toward the flower used a variant of it, for instance).


It is clumsy (there are parts that should be re-written to make it shorter, etc.) but I was too busy changing parameters and debugging compatibility issues on a deadline to optimize it. Copy and paste it into a text file and save it with the extension .avs into the same folder as the video file you are using.

SetMTMode(5,0)
DirectShowSource("TYPE THE INPUT FILENAME HERE")
SetMTMode(2)
Last=AVISource("TYPE THE INPUT FILENAME HERE AGAIN").ConvertToYUY2
super = MSuper(pel=2,hpad=4,vpad=4)
backward_vec = MAnalyse(super,chroma=false, blksize=16, isb = true, search=5, searchparam=1)
forward_vec = MAnalyse(super, chroma=false, blksize=16)
MFlowFps(super, backward_vec, forward_vec, num=96, \
den=1, mask=1, ml=49)

If you are using a version of AVISynth that does not support multi-threading, simply remove the lines with "SetMTMode" in them. Remember to replace "TYPE THE INPUT FILENAME HERE" with the filename you are using.

There is more to it and I may make a more complete tutorial but that will get you going and get you a straight 96 fps file out of your source footage when you open the .AVS file in VirtualDub (where you can change the output of the frame rate to something lower to get slow-motion).
 
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