Latest update causes lag and painting issues | Blockbench | Page 1

glossy agate Apr 4, 2026, 4:50 PM

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halcyon roverBOT Apr 4, 2026, 4:50 PM

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glossy agate Apr 4, 2026, 4:50 PM

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@warped python

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Latest update causes lag and painting issues

warped python Apr 4, 2026, 5:06 PM

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Can you verify if the performance is different between here and 5.1.1? I can repro slow performance on complex meshes, but in my test and from looking at code changes it should not have changed recently

glossy agate Apr 4, 2026, 5:07 PM

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how can i go to previous bb version?

warped python Apr 4, 2026, 5:07 PM

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What you might be seeing is brush lines no longer connecting between points that are far apart as a result of the fix for #1487151035389841670 message

glossy agate Apr 4, 2026, 5:08 PM

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in that area that i showed the uvs are connected

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even so, if the uvs were seperated it should still be consider a bug if there were skips like these in my opinion

warped python Apr 4, 2026, 5:08 PM

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You can download it here: https://www.blockbench.net/downloads#v5.1.1
You can download the portable version for testing

warped python Apr 4, 2026, 5:11 PM

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glossy agate in that area that i showed the uvs are connected

In #1487151035389841670 message the UVs were also connected, although the direct line between points wasn't the direct line on the 3D model. So it isn't as easy as that.

glossy agate Apr 4, 2026, 5:19 PM

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@warped python

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in the older version the lag is significantly more but the lines stay connected

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also it randomly goes smooth and starts lagging again

warped python Apr 4, 2026, 5:20 PM

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Okay, I'm looking into optimizing that

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It caches faces that were already painted in a given brush stroke, so on some it's faster

warped python Apr 5, 2026, 1:59 PM

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It's much faster now!

glossy agate Apr 5, 2026, 2:02 PM

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Nice

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Is it ready to test?

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Ill go test it

warped python Apr 5, 2026, 3:03 PM

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Yeah, it's in the latest update

#Latest update causes lag and painting issues