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Clockwise or counterclockwise? (psychologie-news.stangl.eu)

submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]

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[–] [email protected] 8 points 1 year ago* (last edited 1 year ago) (2 children)

This is a very unoptimized GIF. Did you know GIFs are limited to at most 256 colors (or 255+transparency) but the palette can be redefined (good export software automatically optimizes it at least according to the first frame)? As such, GIFs that are largely grayscale or sepia can do without dithering and still have smooth colors. (In this one, I would assign 248 colors for the black to white gradient plus 4 shades of red and blue. Or almost halve the file size by limiting the palette to the roughly 16 actually used colors.)

Color palette export

0: #000000 1: #999999 2: #666666 3: #cccccc 4: #669999 5: #996666 6: #336666 7: #99cccc 8: #cc9999 9: #663333 10: #996699 11: #999966 12: #663366 13: #cc99cc 14: #cccc99 15: #666633 16: #9999cc 17: #99cc99 18: #333333 19: #666699 20: #669966 21: #ffcccc 22: #003333 23: #3300cc 24: #ffffff 25: #ff0000 26: #ccffff 27: #330000 28: #333366 29: #336633 30: #333300 31: #330033 32: #ccccff 33: #ccffcc 34: #000099 35: #990000 36: #000033 37: #0033ff 38: #ff3333 39: #0033cc 40: #660000 41: #cc0000 42: #003300 43: #3333cc 44: #3333ff 45: #000066 46: #330099 47: #003399 48: #ff0033 49: #330066 50: #ff3300 51: #0000cc 52: #003366 53: #3366cc 54: #6699cc 55: #9966cc 56: #cc6666 57: #6666cc 58: #336699 59: #6633cc 60: #cc3333 61: #663399 62: #333399 63: #cc6633 64: #993333 65: #ff9999 66: #9999ff 67: #ff9966 68: #cc3366 69: #9966ff 70: #6699ff 71: #3366ff 72: #ff6666 73: #6633ff 74: #6666ff 75: #99ccff 76: #996633 77: #cc99ff 78: #660033 79: #cc0033 80: #ffcc99 81: #ffffcc 82: #ff3366 83: #ff99cc 84: #663300 85: #993300 86: #ffccff 87: transparent 88: #000000 89: #000000 90: #000000 91: #000000 92: #000000 93: #000000 94: #000000 95: #000000 96: #000000 97: #000000 98: #000000 99: #000000 100: #000000 101: #000000 102: #000000 103: #000000 104: #000000 105: #000000 106: #000000 107: #000000 108: #000000 109: #000000 110: #000000 111: #000000 112: #000000 113: #000000 114: #000000 115: #000000 116: #000000 117: #000000 118: #000000 119: #000000 120: #000000 121: #000000 122: #000000 123: #000000 124: #000000 125: #000000 126: #000000 127: #000000

At least the frame delta data is limited to the actually changing rectangle, as it should be.

I would advocate for APNG, WebP or even MP4 but not all browsers play them on a loop by default.

[–] [email protected] 3 points 1 year ago (1 children)

This is the nerdiest comment I've ever read, I love it

[–] [email protected] 3 points 1 year ago

I have been nerdier on Reddit before, and I’m happy to bring that over here. (You won’t see my Reddit nerdposts though, they have been overwritten by PowerDeleteSuite.)

[–] [email protected] -3 points 1 year ago

I agree with you. I changed it with a higher quality one.

[–] [email protected] 2 points 1 year ago

Do it fast enough and she pretty much just turns back and forth.

[–] [email protected] 1 points 1 year ago

My brain hurts

[–] [email protected] 0 points 1 year ago (1 children)

It's better to post the centre one alone. Then the coloured one in the comments.

[–] [email protected] 0 points 1 year ago* (last edited 1 year ago) (1 children)

disagree. i am having fun with them right next to each other. pairing them one side and then the next reverses the spin direction abruptly.

.... i can even get it so that that the raised leg just stays out front. cool!

[–] [email protected] 1 points 1 year ago

Yeah, this is actually much more interesting than the original.

It’s impressive how just a casual glance at the overlapping colours gives you an immediate and definite sense of direction.

And depending on the display size / viewing distance you can easily lose the direction of the left one when looking at the right (and vice versa), so they all start turning in the same direction. That’s because you only have sharp and good color vision at a rather small area (the fovea) everything outside is blurry and has less colour information, so your brain loses that trigger.