3 ms·
Try filling a large square image with thin vertical lines, interpolated for smoothness, but still visibly separate from each other. The width of each line shoul
by gbh444g 6y ago
Try filling a large square image with thin vertical lines, interpolated for smoothness, but still visibly separate from each other. The width of each line should be about 1-3 pixels. Then map the image onto polar coordinates, so the lines would meet in the middle. Finally, downscale it a couple times with a basic avg(2x2) -> 1x1 mapping. Observe an elaborate "shadow shape" in the middle that looks like r=cos(4 pi a), but with a lot more nuanced details.
- enriquto 6y agoThis is oddly specific. Can you point to a realistic scenario where this makes sense?
- BATHING 6y agoA Square, Lines... polarise... A Landscape maybe ? Good News, talking about Art, um someone did... (-; http://www.bildschirmarbeiter.com/content/images/coole_graffiti_3/coole_graffiti_3-008.jpg http://www.bildschirmarbeiter.com/content/images/coole_graff... maybe it is just my humor but... ^^
- gbh444g 6y agoI'm just working on a very particular app in the webgl rendering space and noticed this mysterious glitch in this very case. First I though I've discovered something interesting, but turned out it was just the antialiasing bug being discussed here. I'll share a link to that demo on HN a little later: my account is still green and I'm afraid HN would shadowban me and my domain for sharing links now.