Split up massive templates automatically to avoid OOM

[adudyak]

Once I open settings with template https://ua.rocks/img/canvas.png - page crashes.


Chrome Version 114.0.5735.248 (Official Build) (64-bit)
Version 115.0.5790.102 (Official Build) (64-bit)
Win 10

[LittleEndu]

That image is 2500x1500 and the overlay script needs to turn it into 7500x4500 image to display it, your GPU would need to allocate a 16k texture to save it in memory.

[Yay295]

Is there a reason you copy the templates to a canvas instead of using mask directly on the template images?

[LittleEndu]

Because we want the "show only every Nth pixel" feature.

[LittleEndu]

In addition we currently support variable amounts of dithering if you use the priority mask. I don't think anyone besides us actually used it so we can probably drop the support for priority masks and just find a way to generate a mask that shows every Nth pixel but is also infinitely repeating

[Yay295]

Ah, right. A mask wouldn't be able to do randomness.

[LittleEndu]

I think they can, I think you can use SVG as mask so the only thing we would need to do is generate our own SVGs.

[LittleEndu]

The other thing to consider with the mask is animated templates. If animated template wants to spend time being dithered then any template overlapping with the animate template needs a part of it masked out. idk if we can stack masks like that, probably can if we use <div> elements with different masks applied to each

[Yay295]

It looks like Bocchi used a priority mask: https://nyaan.moe/bocchiplace2023.json

MLP also used a priority mask, but only when using their own overlay script: https://github.com/r-ainbowroad/2023-minimap
They provided a template compatible with this template manager, but it didn't include the priority mask.