Grease Pencil: Strength sculpt brush does not work at small sizes, since 2.81 #73327

New Issue

Lionel Fiévet · 2020-01-22T21:48:04+01:00

Lionel Fiévet commented

2020-01-22 21:48:04 +01:00

System Information
Operating system: Windows-7-6.1.7601-SP1 64 Bits
Graphics card: AMD Radeon HD 5700 Series ATI Technologies Inc. 4.5.13417 Core Profile Context 15.301.1901.0

Blender Version
Broken: version: 2.82 (sub 5), branch: master, commit date: 2019-12-13 20:35, hash: c6ba941339
Worked: 2.80

Short description of error
The "Strength" brush in Grease Pencil Sculpt Mode does not work unless the radius is turned very high.
This bug seems to be specific to my setup in some way, as other users I've asked don't encounter it.

I first noticed this bug using an early build of 2.81. The strength sculpt tool worked properly in 2.80. I tried the current beta of 2.82 and the 2.83, and the bug still persists

Exact steps for others to reproduce the error

Create a new "2D Animation" file
Draw a Grease Pencil line
Go into Grease Pencil sculpt mode
Select the "Strength" tool
Using various settings of brush strength, "add" or "substract", fall off or pressure, try sculpting the strength of the line drawn in 2.
The strength (opacity) should barely change, mostly not at all.
Turn up the brush size to something around 300px
Try sculpting the strength of the line. It should now react as expected.

Here are a few files I saved testing the bug. The first file is from 2.80 where Strength sculpt worked as expected, the others are from later versions where the bug occurs:

20200122_gp_strength_sculpting_2.80_(WORKS).blend
20200122_gp_strength_sculpting_2.81_(DOESN'T_WORK).blend
20200122_gp_strength_sculpting_2.83_alpha_(DOESN'T_WORK).blend

**System Information** Operating system: Windows-7-6.1.7601-SP1 64 Bits Graphics card: AMD Radeon HD 5700 Series ATI Technologies Inc. 4.5.13417 Core Profile Context 15.301.1901.0 **Blender Version** Broken: version: 2.82 (sub 5), branch: master, commit date: 2019-12-13 20:35, hash: `c6ba941339` Worked: 2.80 **Short description of error** The "Strength" brush in Grease Pencil Sculpt Mode does not work unless the radius is turned very high. This bug seems to be specific to my setup in some way, as other users I've asked don't encounter it. I first noticed this bug using an early build of 2.81. The strength sculpt tool worked properly in 2.80. I tried the current beta of 2.82 and the 2.83, and the bug still persists **Exact steps for others to reproduce the error** 1. Create a new "2D Animation" file 2. Draw a Grease Pencil line 3. Go into Grease Pencil sculpt mode 4. Select the "Strength" tool 5. Using various settings of brush strength, "add" or "substract", fall off or pressure, try sculpting the strength of the line drawn in 2. 6. The strength (opacity) should barely change, mostly not at all. 7. Turn up the brush size to something around 300px 8. Try sculpting the strength of the line. It should now react as expected. Here are a few files I saved testing the bug. The first file is from 2.80 where Strength sculpt worked as expected, the others are from later versions where the bug occurs: [20200122_gp_strength_sculpting_2.80_(WORKS).blend](https://archive.blender.org/developer/F8295505/20200122_gp_strength_sculpting_2.80__WORKS_.blend) [20200122_gp_strength_sculpting_2.81_(DOESN'T_WORK).blend](https://archive.blender.org/developer/F8295506/20200122_gp_strength_sculpting_2.81__DOESN_T_WORK_.blend) [20200122_gp_strength_sculpting_2.83_alpha_(DOESN'T_WORK).blend](https://archive.blender.org/developer/F8295507/20200122_gp_strength_sculpting_2.83_alpha__DOESN_T_WORK_.blend)

Lionel Fiévet commented

2020-01-22 21:48:04 +01:00

Added subscriber: @Nelfie

Richard Antalik commented

2020-01-23 12:44:56 +01:00

Added subscriber: @iss

Richard Antalik commented

2020-01-23 12:44:56 +01:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Richard Antalik commented

2020-01-23 12:44:56 +01:00

Tested 2.80 and 2.81 file and got same behavior

@Nelfie can you click on File > Defaults > Load Factory Settings and test your files?

Tested 2.80 and 2.81 file and got same behavior @Nelfie can you click on File > Defaults > Load Factory Settings and test your files?

Antonio Vazquez self-assigned this 2020-01-23 16:47:21 +01:00

Antonio Vazquez commented

2020-01-23 16:47:21 +01:00

Changed status from 'Needs User Info' to: 'Confirmed'

blender-admin commented

2020-01-23 16:55:37 +01:00

This issue was referenced by d9d11e2faf

This issue was referenced by d9d11e2faf0502eab215f8f13661972f9b459d3a

Antonio Vazquez commented

2020-01-23 16:56:03 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Antonio Vazquez closed this issue

2020-01-23 16:56:03 +01:00

Jack Humbert commented

2020-08-09 18:40:20 +02:00

Added subscriber: @jackhumbert

Jack Humbert commented

2020-08-09 18:40:20 +02:00

I was experiencing a similar issue to this, related to the zoom level as well (small brushes seemed to work when zoomed out), but when trying to isolate the lines for a test file, I realised some of my geometry was out of the working plane (not entirely sure how this happened). Once I flattened everything, the issue went away. I don't know if this is a separate issue, or tracked elsewhere - just wanted to add some additional information!

Richard Antalik commented

2020-08-10 09:08:23 +02:00

In #73327#993458, @jackhumbert wrote:
I was experiencing a similar issue to this, related to the zoom level as well (small brushes seemed to work when zoomed out), but when trying to isolate the lines for a test file, I realised some of my geometry was out of the working plane (not entirely sure how this happened). Once I flattened everything, the issue went away. I don't know if this is a separate issue, or tracked elsewhere - just wanted to add some additional information!

Please create new report for this

> In #73327#993458, @jackhumbert wrote: > I was experiencing a similar issue to this, related to the zoom level as well (small brushes seemed to work when zoomed out), but when trying to isolate the lines for a test file, I realised some of my geometry was out of the working plane (not entirely sure how this happened). Once I flattened everything, the issue went away. I don't know if this is a separate issue, or tracked elsewhere - just wanted to add some additional information! Please create new report for this

Sign in to join this conversation.

No Label

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Grease Pencil: Strength sculpt brush does not work at small sizes, since 2.81 #73327