Initial stroke delay - clay strips #110794
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Reference: blender/blender#110794
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System Information
Operating system: Windows-10-10.0.22621-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 535.98
Blender Version
Broken: version: 3.6.1, branch: blender-v3.6-release, commit date: 2023-07-17 12:50, hash:
8bda729ef4dcWorked: (newest version of Blender that worked as expected)
Short description of error
When you start a stroke in sculpt mode with the clay strips brush, it takes some movement for it to start registering. Previous versions of Blender didn't have this problem. See video to understand better (sorry for the low audio volume, if you can, wear headphones or raise the volume).
Exact steps for others to reproduce the error
Just start a stroke with clay strips, it will take a drag to appear. It can be reproduced in default room.
I think the video didn't upload. Here it is in youtube: https://youtu.be/Y-IQiyD5zIw
Can confirm it's becoming this way between 3.3 and 3.5.
Not sure if it's entirely intentional since the clay brush is square-looking and the longer initial stroke may give it a better direction hint so there won't be a random twist at the beginning due to mouse position jitter.
I have the same problem since version 3.6 +. It sometimes won't even lay down strokes for me until I lift the pen and retry the spot and then it adds displacement unexpectedly. I can open the same file in 3.5 and the clay strips works as expected.
Thank you in advance to the developers looking into this. ❤️
Yeah I can confirm this. It's less noticeable with radius pressure sensitivity and low pressure.
But it's definitely too noticeable otherwise.
I talked with @Sergey. It would be good to check what the minimum needed distance is to reliably calculate the direction of the brush. Right now it just seems way to high.
Hi Julien,
Is this something you want us users to check?
If so, how would we go about checking the distance as you mentioned?
Forgive me I'm new at this. Maybe your comment was towards other developers... 😅
@JulienKaspar I would suggest also scale that value with interface scale factor too, that way we adapt better with high dpi situations.
@Claudio-Setti Yes sorry. That comment was more towards the developers on how we should approach a fix.
@ChengduLittleA Taking dpi into account is a good note!
I opened a problem #112194 a while ago. I just tested with 3.2 and it didn't happen. Version 3.3 seems to be have a bit of this problem but a lot less severe. So it seems to be also something that happens after 3.2.
After a thorough test on the clay strips in version 3.6.4, the same erratic behaviours present in previous versions of 3.6 persist. Additionally, I observed a noticeable delay when using the control-z command to undo a stroke.