![]() ![]() That's something you could've written down. The video you linked to takes about 2/3 minutes to describe what Datamoshing does. What else is there to describe? it's a basic question: can it be done in fusion, end of story I'd happily get sidetracked into playing with this but I'm supposed to be working ¯\_(ツ)_/¯ I note that there's an Optical Flow node: I'm guessing that it produces the motion vectors you need by analysing incoming footage you can probably then apply those motion vectors to something different, or the same footage but delayed in time, to produce those weird effects. ![]() These effects oughta be possible in Fusion, but as a relative noob I'll leave it to others to hammer out. It's used by Twixtor / FCP etc for retiming footage. Motion Vector Analysis is sometimes known as optical flow: take two frames, and produce a vector for each chunk of pixels that records how they've moved between frames. Simplistically speaking it means that a snippet of video of, say, a car driving past, only needs to store the image of the car once, and can then just store information about how that chunk of the picture needs to be moved in the following frames to reconstitute the video. This type of compression relies on motion vector analysis: spotting where a chunk of the image has merely moved within the frame. Rather than storing every single video frame completely (intra-coding), the files are made up of relatively few i-frames - full frames - and the rest as p- and b-frames, which store just the changes that need to be made to the nearest i-frame(s) to reconstitute a full frame. It's the sorta thing that happens if an mpeg video gets corrupted. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |