Grease Pencil Multiframe Scale affects stroke thickness inversely #103293

Closed
opened 2022-12-17 13:00:27 +01:00 by Thomas Torr · 8 comments

System Information
Operating system: Windows 10

Graphics card: Nvidia Geforce GTX 1060 3GB
AMD FX(tm)-4300 Quad-Core Processor 3.80 GHz
16,0 GB (7,98 GB usable)
ASUStek M5A78L-M LX V2

Blender Version
Broken: 3.4
Worked: 3.0

When I use multi-frame with falloff on strokes using the scale tool will cause the stroke thickness to be inversely effected, meaning that if I am scaling the lines up the stroke thickness of some frames will shrink. This is completely unexpected and unwanted behavior, and I used to use this technique all the time. It's actually impeding my workflow.

Exact steps for others to reproduce the error
Add a new stroke, duplicate several frames, select the grease pencil frames, go into multi-frame edit mode, enable falloff of multi-frame mode, scale up the strokes in the end or beginning frame.

**System Information** Operating system: Windows 10 Graphics card: Nvidia Geforce GTX 1060 3GB AMD FX(tm)-4300 Quad-Core Processor 3.80 GHz 16,0 GB (7,98 GB usable) ASUStek M5A78L-M LX V2 **Blender Version** Broken: 3.4 Worked: 3.0 When I use multi-frame with falloff on strokes using the scale tool will cause the stroke thickness to be inversely effected, meaning that if I am scaling the lines up the stroke thickness of some frames will shrink. This is completely unexpected and unwanted behavior, and I used to use this technique all the time. It's actually impeding my workflow. **Exact steps for others to reproduce the error** Add a new stroke, duplicate several frames, select the grease pencil frames, go into multi-frame edit mode, enable falloff of multi-frame mode, scale up the strokes in the end or beginning frame.
Author

Added subscriber: @ThomasTorr

Added subscriber: @ThomasTorr
Author

If I were to guess I would say that the factor for muti-frame changed but they forgot to change the factor for stroke thickness, so it's scaling the thickness by the falloff using an incorrect factor which causes points at the extremes to be over-scaled. Just my thoughts, I know nothing of what's happening under the hood.

If I were to guess I would say that the factor for muti-frame changed but they forgot to change the factor for stroke thickness, so it's scaling the thickness by the falloff using an incorrect factor which causes points at the extremes to be over-scaled. Just my thoughts, I know nothing of what's happening under the hood.
Author

In other words, stroke thickness values that should be multiplied by 1 are being multiplied by values less than one

In other words, stroke thickness values that should be multiplied by 1 are being multiplied by values less than one
Antonio Vazquez self-assigned this 2022-12-17 13:10:07 +01:00

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

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

This issue was referenced by ae5b912f78

This issue was referenced by ae5b912f7800978275a4c13502400c6217b6b231

This issue was referenced by b64a80edd5

This issue was referenced by b64a80edd5807f6f1f3800836cbf2996dcdf5230

This issue was referenced by 8709a51fa9

This issue was referenced by 8709a51fa9073884510a546ca99de45321f1d26f

Changed status from 'Confirmed' to: 'Resolved'

Changed status from 'Confirmed' to: 'Resolved'
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Reference: blender/blender#103293
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