Does anyone know how to recreate this effect in photoshop or illustrator?
Here's another example of what I mean.
I think you can achieve this effect using some of these free ones, with som minor tweaking of your original work.https://www.freepik.com/search?format=search&last_filter=selection&last_value=1&query=vhs%20glitch&selection=1&type=psd
>>455549It's called "rutt etra effect". You can find a lot of tutorials how to recreate it. You can recreate it in Touchdesigner
>>455549the original guy that makes this polygon1999 I think uses an actual old TV, scans it and edits it from there.
>>455650its actually just 'scan lines'and rutt etra apparently was an old synthesizer for videodidnt know they had video synthscool
>>455549>>455550I feel like you could write a script for this, I've seen others making these. Loose in dark pixels, but dense in light pixels. I'm not so sure if a shader could achieve the same effect without lagging (there could be some tricks).>>455650Except that's more like the bumps in the Joy Division album cover. It's hard to explain the differences, but you just know when you see it. Maybe I could say the difference is that one's based on bump/height mapping while OP's based on the spaciousness between lines, but both are dependent on the value of brightness.
>>456537you are seeing these at a point in time very different from the scan line / old tv / old green /yellow monitor cathode ray shit where it comes from.you are seeing it mixed with point cloud, projective and topographic datums. there are a number of features going on here.for what its worth - the joy division image is a repeating signal, a 2d wave somewhat accidentlly laid out as layers describing a 3d topogrphy. but its just an illusion
>>456537>>456538It also reminds me of error diffusion dithering.
>>456539>the fuck is this?ive never heard of this?
>>456540I was interested in Photoshop's dithering methods back then for GIFs when I was writing Python snippets, thus I learned about the Floyd–Steinberg dithering which is very beautiful IMO and reminds me of 90s computer graphics.
>>456541so this is like a "tweening" between a grid array and a pixel image of 3D objects?thanks for the reply
>>456539you get those lines only on big slow gradients sadly
It must be something easy to do because you see a lot of before and after images floating around the Internet.
>>456711>posts zero of those images
>>456820This is the latest instance I have seen. Can't remember where I saw the others.
>>455549i can do it in blender in 30 seconds
>>456862wht do you do to do it?
Hmmm.... Well it kinda looks like .. If you had some edge detection algorithm output the edge as a curve, then computed a point "within" the area enclosed by the curve that was equidistant from the curve and used that as a control point to drag the curve inwards towards the point, rastering it on specific lengths
The 'volumetric' stripes pattern is basically doing this densely to the brightness levels.You can very poorly do it manually clicking through Gradient Map or Levels tools.Or write a Python script maybe.Maybe generate a Photoshop/Krita high frequency repeating B&W gradient that can be imported and applied to images.
>>456965Can you dumb it down so I just have to press a button.
This is a rudimentary error diffusion effect. Floyd-Steinberg dithering diffuses error to the four pixels to the right and bottom, whereas this is from only diffusing to the right.Source code: https://pastebin.com/raw/ZyqmDkZd
>>457019so how do I make something like the gif you posted?
Not sure, sorry!
