Curves sculptmode: Slide tool with Pressure Sensitivity always resets at the end of the stroke #100324

New Issue

Rodger Davis · 2022-08-10T16:10:35+02:00

Rodger Davis commented

2022-08-10 16:10:35 +02:00

System Information
Operating system: Linux-5.18.16-arch1-1-x86_64-with-glibc2.36 64 Bits
Graphics card: NVIDIA GeForce GT 1030/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 515.65.01

Blender Version
Broken: version: 3.3.0 Beta, branch: master, commit date: 2022-08-09 23:24, hash: 31e06a8c73

Short description of error
Curves will snap back to it's original coordinates after the stroke. Turning off the pressure sensitivity will allow the hair curves to stay.

Exact steps for others to reproduce the error
Use a pentablet or a screen display with pressure sensitivity

Load Factory Settings
Go to 3D Viewport
Add mesh primitive
Add curve hair object while mesh primitive is active
Go to sculpt mode
Add some hair with the [Add] tool

Slide hair with the [Slide] tool

Pentablet: XP-Pen Deco 01 V2

**System Information** Operating system: Linux-5.18.16-arch1-1-x86_64-with-glibc2.36 64 Bits Graphics card: NVIDIA GeForce GT 1030/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 515.65.01 **Blender Version** Broken: version: 3.3.0 Beta, branch: master, commit date: 2022-08-09 23:24, hash: `31e06a8c73` **Short description of error** Curves will snap back to it's original coordinates after the stroke. Turning off the pressure sensitivity will allow the hair curves to stay. **Exact steps for others to reproduce the error** *Use a pentablet or a screen display with pressure sensitivity* - Load Factory Settings - Go to 3D Viewport - Add mesh primitive - Add curve hair object while mesh primitive is active - Go to sculpt mode - Add some hair with the [**Add**] tool # Slide hair with the [**Slide**] tool ---- **Pentablet:** XP-Pen Deco 01 V2

Rodger Davis commented

2022-08-10 16:10:35 +02:00

Added subscriber: @RodDavis

blender-admin commented

2022-08-10 16:10:35 +02:00

#102541 was marked as duplicate of this issue

Pratik Borhade commented

2022-08-11 05:43:20 +02:00

Added subscribers: @lichtwerk, @PratikPB2123

Pratik Borhade commented

2022-08-11 05:43:20 +02:00

@lichtwerk , could you check with your pen tab?

Philipp Oeser commented

2022-08-11 10:11:57 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'

Philipp Oeser commented

2022-08-11 10:11:57 +02:00

Can confirm, will check.
Assume this just goes to zero pressure on releasing the stroke (thus going back to zero influence)

Can confirm, will check. Assume this just goes to zero pressure on releasing the stroke (thus going back to zero influence)

Philipp Oeser commented

2022-08-11 10:23:21 +02:00

Added subscribers: @JulienKaspar, @JacquesLucke

Philipp Oeser commented

2022-08-11 10:23:21 +02:00

Not sure if pressure sensitivity really makes sense for the slide tool.
We could only get pressure at the very beginning of the stroke, but then you will never be able to get 1.0 strength with pressure sensitivity

Reminds me of #83697 (Rotate sculpting brush may have an incorrect pen pressure behavior).

@JulienKaspar , @JacquesLucke : opinions?

Not sure if pressure sensitivity really makes sense for the slide tool. We could only get pressure at the very beginning of the stroke, but then you will never be able to get 1.0 strength with pressure sensitivity Reminds me of #83697 (Rotate sculpting brush may have an incorrect pen pressure behavior). @JulienKaspar , @JacquesLucke : opinions?

Julien Kaspar commented

2022-08-11 10:46:54 +02:00

@lichtwerk For brushes that can only use the pressure sensitivity from the start of the stroke, we should hide that option entirely.
We had the same issue with some of the sculpting brushes, which now no longer have the button to enable pressure sensitivity.
The alternative is to revive this prototype to add this functionality properly: D6603: Sculpt: Enable size/pressure in Grab Brush

Edit: I just noticed I wrote the same back then on #83697 (Rotate sculpting brush may have an incorrect pen pressure behavior)

@lichtwerk For brushes that can only use the pressure sensitivity from the start of the stroke, we should hide that option entirely. We had the same issue with some of the sculpting brushes, which now no longer have the button to enable pressure sensitivity. The alternative is to revive this prototype to add this functionality properly: [D6603: Sculpt: Enable size/pressure in Grab Brush](https://archive.blender.org/developer/D6603) Edit: I just noticed I wrote the same back then on #83697 (Rotate sculpting brush may have an incorrect pen pressure behavior)

Philipp Oeser commented

2022-08-11 11:54:38 +02:00

In #100324#1402589, @lichtwerk wrote:
Reminds me of #83697 (Rotate sculpting brush may have an incorrect pen pressure behavior).

In #100324#1402596, @JulienKaspar wrote:
Edit: I just noticed I wrote the same back then on #83697 (Rotate sculpting brush may have an incorrect pen pressure behavior)

yep :)

In #100324#1402596, @JulienKaspar wrote:
We had the same issue with some of the sculpting brushes, which now no longer have the button to enable pressure sensitivity.

Grab & Snake Hook, right?

There is sculpt_is_grab_tool which disables sensitivity for size, havent checked yet how this gets disabled for strength for those brushes...

> In #100324#1402589, @lichtwerk wrote: > Reminds me of #83697 (Rotate sculpting brush may have an incorrect pen pressure behavior). > In #100324#1402596, @JulienKaspar wrote: > Edit: I just noticed I wrote the same back then on #83697 (Rotate sculpting brush may have an incorrect pen pressure behavior) yep :) > In #100324#1402596, @JulienKaspar wrote: > We had the same issue with some of the sculpting brushes, which now no longer have the button to enable pressure sensitivity. `Grab` & `Snake Hook`, right? There is `sculpt_is_grab_tool` which disables sensitivity for size, havent checked yet how this gets disabled for strength for those brushes...

Philipp Oeser self-assigned this 2022-10-12 10:39:26 +02:00

Philipp Oeser changed title from ~~Blender 3.3.0 Beta - Hair tool slide with Pressure Sensitivity - bug~~ to Curves sculptmode: Slide tool with Pressure Sensitivity always resets at the end of the stroke

2022-10-12 10:40:58 +02:00

Philipp Oeser commented

2022-11-16 15:31:49 +01:00

Added subscriber: @KennethThomas

stefan corso commented

2022-11-21 19:32:03 +01:00

Added subscriber: @stefancorso

stefan corso commented

2022-11-21 19:32:03 +01:00

Stupid workaround: select 'Line' in the 'stroke method' of the slide tool.

I dont know if this is the right place to post workarounds, if not then im sorry.

Thanks all developers though :D

Stupid workaround: select 'Line' in the 'stroke method' of the slide tool. I dont know if this is the right place to post workarounds, if not then im sorry. Thanks all developers though :D

Philipp Oeser removed the

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Curves sculptmode: Slide tool with Pressure Sensitivity always resets at the end of the stroke #100324

Slide hair with the [Slide] tool