wacom stroke_pressure issue in H21.0.512

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Hi everyone,
I just installed H21.0.512 and immediately noticed that Attribute Paint can't sense the pressure of my Wacom tablet's pen like H20 did.
Is anyone having the same problem?
Is there anything to do?

Thanks
Livio
Livio
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Which OS? If you're on Windows, you could try adding HOUDINI_ENABLE_WINTAB = 1in your houdini.env file. This file can be found in your preferences directory.
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johnmather
Which OS? If you're on Windows, you could try adding HOUDINI_ENABLE_WINTAB = 1in your houdini.env file. This file can be found in your preferences directory.
Uh sorry,
Windows yes! obviously ;-)

I, tried uselessly HOUDINI_ENABLE_TABLET = 1.

HOUDINI_ENABLE_WINTAB = 1 works perfectly!

Many thanks
Livio
Edited by Livio - 2025年12月2日 04:28:13
Livio
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Hi,

I’m experiencing the same issue in Windows 11. but in my case, When I enable HOUDINI_ENABLE_WINTAB = 1, the curves created with the Draw Curve SOP become noticeably jagged.

The stroke_pressure attribute is being correctly registered, so pressure input seems to be working, but the curve quality degrades significantly.

I’ve attached two GIFs that show a direct comparison between both situations
wintab = 0


wintab = 1



For reference, I’m using a Wacom Intuos Pro M (2024) with the latest drivers installed. I’ve also tested several combinations, including disabling Windows Ink, but the issue persists.

Any ideas on what might be causing this or how to fix it?


Thanks in advance.
Edited by AgusGuri - 2026年2月15日 18:54:15

Attachments:
WINTAB_0.gif (3.9 MB)
WINTAB_1.gif (1.9 MB)

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I also noticed that in some context menus the buttons and switches don't work with the pen, only with the mouse.
Livio
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Please submit a bug report so that it can be forwarded to the correct developer. Thanks!
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there isn't any bug report, simply, in sop "node info" for example, checkboxes doesn't work with pen but work normally with the mouse.
Thanks
Livio
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