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  1. Member racer-x's Avatar
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    It's been a long time since I've used it, but today I shot some slow-shutter-speed shots with my trusty 50 mm Canon Lens (aka "Nifty Fifty") mounted on my t2i. The target was a WaterFall, I shot with an F22 @ 2.5 sec shutter-speed for motion blur on the falling water. I think it looks pretty darn cool...........
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    Got my retirement plans all set. Looks like I only have to work another 5 years after I die........
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  2. Beautiful picture, thanks for that.

    Mind you, I'm not much of a photographer, but I've noticed that falling water motion blur before in pictures of waterfalls. Yours is very good.
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  3. Very nice, racer. Can we do that effect in video?
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  4. Originally Posted by TreeTops View Post
    Can we do that effect in video?
    The effect requires long exposures/slow shutter speeds. In video it's essentially done as a time-lapse.
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  5. Originally Posted by smrpix View Post
    Originally Posted by TreeTops View Post
    Can we do that effect in video?
    The effect requires long exposures/slow shutter speeds.
    As long as the camera wasn't moving you can simulate that by merging successive frames.

    Single frame from a random Youtube waterfall video:
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    64 frames merged together (6 successive Merge(SelectEven(),SelectOdd()) command in AviSynth):
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    Last edited by jagabo; 27th Oct 2014 at 11:47.
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  6. Member racer-x's Avatar
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    Very nice, jagabo...
    Got my retirement plans all set. Looks like I only have to work another 5 years after I die........
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  7. Good, I will try that on one of our local waterfalls here.
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  8. Here's ten seconds in motion using a lightly different technique. And the original Youtube video:
    http://www.youtube.com/watch?v=Qo3OM5sPUPM
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    Last edited by jagabo; 27th Oct 2014 at 15:16.
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  9. Member racer-x's Avatar
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    I like the effect. Could you post the script you used?

    Thanks.
    Got my retirement plans all set. Looks like I only have to work another 5 years after I die........
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  10. I did this:

    Code:
    # first add motion interpolated frames to give smoother blends
    AssumeFPS(30000,1001) # make it exact
    SmoothFPS2(120000,1001) # motion interpolate 4x
    Merge(SelectEven(),SelectOdd()) # blend down to 2x
    Merge(SelectEven(),SelectOdd()) # blend down to 1x
    
    #now blend frames together
    Interleave(last, last.trim(1,0), last.trim(2,0), last.trim(3,0), last.trim(4,0), last.trim(5,0), last.trim(6,0), last.trim(7,0), last.trim(8,0), last.trim(9,0), last.trim(10,0), last.trim(11,0), last.trim(12,0), last.trim(13,0), last.trim(14,0), last.trim(15,0)) # 16x frames
    Merge(SelectEven(),SelectOdd()) # 8x frames
    Merge(SelectEven(),SelectOdd()) # 4x frames
    Merge(SelectEven(),SelectOdd()) # 2x frames
    Merge(SelectEven(),SelectOdd()) # 1x frames
    The result is the same frame rate as the 29.97 fps source and the same running time. But each frame is a sliding average of 16 frames. Ie, the first source frame is average of source frames 0-15, the second output frame is average of source frames 1-16, the third output frame is average of source frames 2-17, etc.
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  11. Member racer-x's Avatar
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    Thanks, I will try that one out next time.

    I played around a little and got this interesting look:
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    Got my retirement plans all set. Looks like I only have to work another 5 years after I die........
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  12. Member racer-x's Avatar
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    This one looks much better and it's fully loopable if anyone wants to use it in a project. It's a variation on jagabo's script. Source was 1080/60p.

    I'm uploading a 720p version:
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    Got my retirement plans all set. Looks like I only have to work another 5 years after I die........
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  13. Nice. The technique works for other stuff too. Downtown traffic (another random video from Youtube):
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  14. Member racer-x's Avatar
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    Using multiple merge commands in Avisynth with video frames is proving to be a very good way to cheat motion blur...........
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    Got my retirement plans all set. Looks like I only have to work another 5 years after I die........
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  15. That looks freaky like the ground is covered in spoookkky Halloween fog
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  16. Member racer-x's Avatar
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    Yeah, it looks more like creepy fog than water. It certainly doesn't look natural, more like supernatural.......?

    It is Halloween after all. I like the look however.
    Got my retirement plans all set. Looks like I only have to work another 5 years after I die........
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  17. Member racer-x's Avatar
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    I really like the blending frames effect using Avisynth on video. I like it so much I find myself looking for excuses to use it. I used it today and the results are just awesome....
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    Got my retirement plans all set. Looks like I only have to work another 5 years after I die........
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