Yep, the occlusion effect is pretty large for colored images, that’s why I use a layering system (e.g. 20% of all white threads, then 20% of all blue, then 20% of black, and cycle through). I go in reverse order, so the ones found first by the algorithm are the last ones to be placed. I also put black on top and white lowest down, cause white on top looks super jarring. The effect is that the In the colab you can play around with the order of the threads. If you reverse the order then the image looks really bad. You can also create gifs of the image forming, and see that the first threads to be added always look like random noise (because at the time the algorithm picks those lines, it’s probably already matched all the important features of that color).
The pieces do get pretty thick, usually about 1cm. Actually, for the gantry (the one shown in the video) I had to intervene to raise its height every hour or so, otherwise the arm would get snagged on the threads.
Multi-color dithering looks cool, I hadn’t come across that before, although I suspect it wouldn’t be much of an improvement (e.g. because you can apply a Gaussian blur to the monochrome images you get from dithering without it really changing the result much).
I would have expected the effect from occlusion of new lines over old ones to be big, but maybe you include that effect.
How thick do the pictures usually get? Can you post a photo from an angle?
I’m surprised you didn’t do multi-color dithering. Was that because you wanted to weave in phases?
Yep, the occlusion effect is pretty large for colored images, that’s why I use a layering system (e.g. 20% of all white threads, then 20% of all blue, then 20% of black, and cycle through). I go in reverse order, so the ones found first by the algorithm are the last ones to be placed. I also put black on top and white lowest down, cause white on top looks super jarring. The effect is that the In the colab you can play around with the order of the threads. If you reverse the order then the image looks really bad. You can also create gifs of the image forming, and see that the first threads to be added always look like random noise (because at the time the algorithm picks those lines, it’s probably already matched all the important features of that color).
The pieces do get pretty thick, usually about 1cm. Actually, for the gantry (the one shown in the video) I had to intervene to raise its height every hour or so, otherwise the arm would get snagged on the threads.
Multi-color dithering looks cool, I hadn’t come across that before, although I suspect it wouldn’t be much of an improvement (e.g. because you can apply a Gaussian blur to the monochrome images you get from dithering without it really changing the result much).