Grease Pencil modifier properties don't update in realtime when linked to a driver #62514

New Issue

heini · 2019-03-12T22:33:25+01:00

heini commented

2019-03-12 22:33:25 +01:00

System Information
Operating system: win 64
Graphics card: gforce gtx 1060

Blender Version
Broken: 2.80, 936014ea8c
Worked: former builds (tried with 2.80, a77b63c569, 04.01.2019)

Short description of error
When assigning a driver to the value of a GP modifier setting, it doesn't update in real time

Exact steps for others to reproduce the error

add a modifier to a GP object and link one of its properties it to another object's transform channel
it will not update until forced by pressing update dependencies

00_GP_driven_modifier.blend

notes:
I made this demonstration file and it works just fine in the newest build, but when I try to isolate the issue, at some point it breaks and I have to manually update in order to see the correct result.
( This is how it should look like )
also the dotted white lines in the driver editor will only change position in x-direction (might be a different issue though)

I used to be able to add tags to a bug report but not anymore?

**System Information** Operating system: win 64 Graphics card: gforce gtx 1060 **Blender Version** Broken: 2.80, 936014ea8c74 Worked: former builds (tried with 2.80, a77b63c56943, 04.01.2019) **Short description of error** When assigning a driver to the value of a GP modifier setting, it doesn't update in real time **Exact steps for others to reproduce the error** - add a modifier to a GP object and link one of its properties it to another object's transform channel - it will not update until forced by pressing update dependencies [00_GP_driven_modifier.blend](https://archive.blender.org/developer/F6811420/00_GP_driven_modifier.blend) notes: I made this [demonstration file ](http://weizenkeim.org/blendfiles/GP_timeoffset.blend) and it works just fine in the newest build, but when I try to isolate the issue, at some point it breaks and I have to manually update in order to see the correct result. ( [This ](https://www.youtube.com/watch?v=etoy9mgbR2g) is how it should look like ) also the dotted white lines in the driver editor will only change position in x-direction (might be a different issue though) ![drivercrosshair.jpg](https://archive.blender.org/developer/F6811450/drivercrosshair.jpg) I used to be able to add tags to a bug report but not anymore?

heini commented

2019-03-12 22:33:25 +01:00

Added subscriber: @heini

blender-admin commented

2019-03-12 22:33:25 +01:00

#63119 was marked as duplicate of this issue

Antonio Vazquez commented

2019-03-12 23:06:35 +01:00

Added subscribers: @lichtwerk, @antoniov

Antonio Vazquez commented

2019-03-12 23:06:35 +01:00

@lichtwerk I think we have already a bug open for this, no?

Edited: I think the related task is #57483

@lichtwerk I think we have already a bug open for this, no? Edited: I think the related task is #57483

heini commented

2019-03-14 02:43:59 +01:00

weird thing is, that it used to work flawlessly in earlier builds from this year. It even works with the current build if I load the demo file I linked until I delete some of the modifiers to single it out.