Meanwhile, I'm integrating xatlas (https://github.com/jpcy/xatlas ) to Bakery. So far so good, it definitely does a better job than the built-in Unity unwrapper. Comparing with identical padding herepic.twitter.com/qn782Ui2jM
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@miwanicki packs a 1 pix line to 2, with no gutters - so you get some spatial variation on small axis. Single pix chart goes to 4 with no gutters (4 values, each using 1/4 texel, etc.)
That's an interesting approach. Also expanding my original reply - with proper UV setup, charts don't need borders/gutters for bilinear interpolation.
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This example is perhaps not the most illustrative one, and padding is very large. Bruteforce packing concave shapes doesn't sound like a trivial task, and it seems to do it pretty fast. Bonus: charts are aligned to 4x4 blocks to help DXT.
Bedankt, Twitter gebruikt dit om je tijdlijn te verbeteren. Ongedaan makenOngedaan maken
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What about mipmapping?
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You can't mipmap the lightmaps. You sort-of-can to a limited minimum size by aligning the charts to the lowest mip pixel boundary, but that impacts packing efficiency at high res. Better just switch geometry lods together with lightmaps.
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