[krita] [Bug 363739] Brush lag at zoom level 50 below

[Boudewijn Rempt]

https://bugs.kde.org/show_bug.cgi?id=363739

--- Comment #16 from Boudewijn Rempt  ---
Yes... We worked really hard on improving performance already.

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[krita] [Bug 363739] Brush lag at zoom level 50 below

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=363739

--- Comment #15 from kirrin.artemi...@gmail.com ---
Good morning sires.

I would like to report that I just downloaded Version 3.1.1 and observed a much
better performance in rendering fast and large strokes, with lags that are much
more manageable. I would also like to note that it seems there are tools that
lag pretty much (i.e. Bristles_hairy and Hatch_cross_small) and tools that
don't lag (i.e. Basic_mix_soft), which may be expected given the inherent
complexity of programming the other tools.

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[krita] [Bug 363739] Brush lag at zoom level 50 below

[Boudewijn Rempt]

https://bugs.kde.org/show_bug.cgi?id=363739

Boudewijn Rempt  changed:

   What|Removed |Added

 Resolution|--- |DUPLICATE
 Status|UNCONFIRMED |RESOLVED

--- Comment #14 from Boudewijn Rempt  ---


*** This bug has been marked as a duplicate of bug 369349 ***

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[krita] [Bug 363739] Brush lag at zoom level 50 below

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363739

--- Comment #13 from kirrin.artemi...@gmail.com ---
Good day, sires.

I tried Krita 3.0.1 to test the presence of brush lag, and I would like to
report that the problem is partly solved for tools with small dimensions (such
as the gpen tool at px 10). On larger dimensions (such as hatches set at 128
px), the lag persists.

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[krita] [Bug 363739] Brush lag at zoom level 50 below

[Lili via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363739

--- Comment #12 from Lili  ---
hello!
i just recently started using krita but when i try to draw with zoom 50% or
below 50% it lags :( i have Windows 10,installed the 64bit ver and im using
huion tablet

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[krita] [Bug 363739] Brush lag at zoom level 50 below

[Lili via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363739

Lili  changed:

   What|Removed |Added

 CC||paradic...@gmail.com

--- Comment #11 from Lili  ---
hello!
i just recently started using krita but when i try to draw with zoom 50% or
below 50% it lags :( i have Windows 10,installed the 64bit ver and im using
huion tablet

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[krita] [Bug 363739] Brush lag at zoom level 50 below

[William Kensinger via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363739

William Kensinger  changed:

   What|Removed |Added

 CC||will89...@gmail.com

--- Comment #10 from William Kensinger  ---
Just dropping in to say that this bug might be either related to, or a
duplicate of, a bug I filed a little while ago:
https://bugs.kde.org/show_bug.cgi?id=363487 

Looking at the how the brush behaves, it does look like it performs much worse
at below 50%, though it's the issue present at higher zoom levels for me. I
haven't seen any odd behavior coming from the overview docker, but I wouldn't
rule it out either since I don't use it too much.

Most interesting to me, and what tells me that this might be the same bug, is
that we have very similar graphics cards. My card is an ASUS Radeon R9 280X,
which is apparently an AMD-based card from the same series.

On a slightly-unrelated note, the bug I linked appears to be mislabeled as
resolved, since I initially reported it as possibly fixed, when its  behavior
changed after I updated my graphics drivers. I should probably set that to
something else, but I can't figure out for the life of me what I should relabel
it to.

Regardless, thanks for your time everyone, and here's to getting this bug
solved!

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[krita] [Bug 363739] Brush lag at zoom level 50 below

[eliotJ via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363739

--- Comment #9 from eliotJ  ---
Hi again

It sad that it doesn't help...

Lately somebody else (nick from krita's IRC channel: 'Stratosfear') has
reported exactly the same issue on IRC... He also has AMD CPU. His hardware
specs:

System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: GA-MA785GT-UD3H
BIOS: Award Modular BIOS v6.00PG
Processor: AMD Phenom(tm) II X4 945 Processor (4 CPUs), ~3.0GHz
Memory: 8192MB RAM
Card name: NVIDIA GeForce GT 220

For he my solution has resolved this bug :). I also have Nvidia card (GeForce G
103M) and Intel CPU. I have some similar slow down and for me turned off "Use
texture buffer" also helps a lot... It looks like this turn off gives boost for
Nvidia only.

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[krita] [Bug 363739] Brush lag at zoom level 50 below

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363739

--- Comment #8 from kirrin.artemi...@gmail.com ---
Hello :) Turned off the texture buffer, and the delay is still there.

And oh, brush lag also happens when I make a quick line streak using the mouse.

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[krita] [Bug 363739] Brush lag at zoom level 50 below

[eliotJ via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363739

eliotJ  changed:

   What|Removed |Added

 CC||os...@jadamspam.pl

--- Comment #7 from eliotJ  ---
Hi. Try turn off: "Settings >> Configure Krita... >> Display >> Use texture
buffer". After this please give feedback :).

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[krita] [Bug 363739] Brush lag at zoom level 50 below

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363739

--- Comment #6 from kirrin.artemi...@gmail.com ---
Good day. I tried the dev build, and the brush lag is still present.

I also observed the Overview panel is the same for the dev build, acting funny
with zooming in and out. I closed the Overview panel, and the brush lag is
still there.

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[krita] [Bug 363739] Brush lag at zoom level 50 below

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363739

--- Comment #5 from kirrin.artemi...@gmail.com ---
I haven't tried yet. Let me check later.

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[krita] [Bug 363739] Brush lag at zoom level 50 below

[Boudewijn Rempt via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363739

--- Comment #4 from Boudewijn Rempt  ---
Ah -- that could be related. Does it make a difference if you hide that?

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[krita] [Bug 363739] Brush lag at zoom level 50 below

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363739

--- Comment #3 from kirrin.artemi...@gmail.com ---
Good day by the way, sir. I don't use the stabilizer. I just use basic
smoothing.

I will try the dev build ASAP to check if the issue is fixed. But I would also
like to note that whenever the brush lag happens, the Overview panel sometimes
acts funny (it zooms out for a second then zooms in to "normal") . I would not
know if this is related to the problem though.

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[krita] [Bug 363739] Brush lag at zoom level 50 below

[Boudewijn Rempt via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363739

Boudewijn Rempt  changed:

   What|Removed |Added

 CC||b...@valdyas.org

--- Comment #2 from Boudewijn Rempt  ---
Are you using the brush stabilizer by any chance? AMD GPU's seem to block the
gui for a longer period than Intel or NVidia, and we encountered a problem with
the stabilizer option coupled with AMD gpu's -- there is a fix for that in
3.0.1, with a dev build available now: 
http://files.kde.org/krita/3/windows/devbuilds/krita-3.0-da5496d-x64.zip

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[krita] [Bug 363739] Brush lag at zoom level 50 below

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363739

--- Comment #1 from kirrin.artemi...@gmail.com ---
My PC's specs, by the way:

AMD Eight-Core Processor, AMD Radeon R7 260X, 16 GB RAM, Windows 10, Krita
installed in an SSD

In short, the PC is more than capable of graphics rendering.

Hopefully this helps.

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