Inconsitency in channel pinning mechanic (animation/drivers) #83479

New Issue

Vas · 2020-12-06T18:45:23+01:00

Vas commented

2020-12-06 18:45:23 +01:00

System Information
Operating system: Windows-10-10.0.17763-SP0 64 Bits
Graphics card: GeForce GTX 1050 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 457.30

Blender Version
Broken: version: 2.91.0, branch: master, commit date: 2020-11-25 08:34, hash: 0f45cab862
Worked: (newest version of Blender that worked as expected)

Short description of error
Apparently pinning function is a bit broken, here's the issue:
Here's list of data blocks that don't trigger channel pinning icon:

Shape keys
Materials
Object data > Autosmooth
Object data > Remesh
Particles > Physics
Particles > Render
Particles > Emission > Seed
Particles > Emission >Lifetime
Particles > Emission >Lifetime Randomness
Particles > Viewport Display > Display as
Particles > Viewport Display > Color
Particles > Viewport Display > Amount
Particles > Viewport Display > Size
Particles > Children
Particles > Field Weights
World > (All nodes don't display pins)
World > Viewport display
Scene > (All scene settings can't be pinned)
View Layer properties > (all settings can't be pinned)
Output properties > (all settings can't be pinned)
Render properties > (all settings can't be pinned)

Here's list of data blocks that do trigger channel pinning icon:

Object data transforms (location rotation scale)
Modifiers
Constraints
Rigid body constraints
Particles >Render > Show Emitter
Particles > Viewport Display > Show emitter
Physics properties (all modifiers)

The issue:Currently there's a limitation where channel pinning mechanic is only available onObjectlevel datablocks (feature introduced in 98c7e75897), but apparently its possible to circumvent this limitation to deeper types of datablocks (materials, particles, etc.) by adding a keyframe to any type of object level value (Eg. Location data). Even after removing that keyframe, the object keeps pin functionality (that previously was inaccessible)Also same issue persists in Drivers window too

Solution
Just keep pinning option always available

Here's the video demonstrating in detail this issue
2020-12-06 17-20-58_1.mp4

Exact steps for others to reproduce the error
[Please describe the exact steps needed to reproduce the issue]
[Based on the default startup or an attached .blend file (as simple as possible)]

**System Information** Operating system: Windows-10-10.0.17763-SP0 64 Bits Graphics card: GeForce GTX 1050 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 457.30 **Blender Version** Broken: version: 2.91.0, branch: master, commit date: 2020-11-25 08:34, hash: `0f45cab862` Worked: (newest version of Blender that worked as expected) **Short description of error** Apparently pinning function is a bit broken, here's the issue: Here's list of data blocks that **don't** trigger channel pinning icon: - Shape keys - Materials - Object data > Autosmooth - Object data > Remesh - Particles > Physics - Particles > Render - Particles > Emission > Seed - Particles > Emission >Lifetime - Particles > Emission >Lifetime Randomness - Particles > Viewport Display > Display as - Particles > Viewport Display > Color - Particles > Viewport Display > Amount - Particles > Viewport Display > Size - Particles > Children - Particles > Field Weights - World > (All nodes don't display pins) - World > Viewport display - Scene > (All scene settings can't be pinned) - View Layer properties > (all settings can't be pinned) - Output properties > (all settings can't be pinned) - Render properties > (all settings can't be pinned) Here's list of data blocks that **do** trigger channel pinning icon: - Object data transforms (location rotation scale) - Modifiers - Constraints - Rigid body constraints - Particles >Render > Show Emitter - Particles > Viewport Display > Show emitter - Physics properties (all modifiers) **`The issue:`**Currently there's a limitation where channel pinning mechanic is only available on**Object**level datablocks (feature introduced in 98c7e75897), but apparently its possible to circumvent this limitation to deeper types of datablocks (materials, particles, etc.) by adding a keyframe to any type of object level value (Eg. Location data). Even after removing that keyframe, the object keeps pin functionality (that previously was inaccessible)**Also same issue persists in Drivers window too** ![image.png](https://archive.blender.org/developer/F9490227/image.png) **`Solution`** Just keep pinning option always available Here's the video demonstrating in detail this issue [2020-12-06 17-20-58_1.mp4](https://archive.blender.org/developer/F9480852/2020-12-06_17-20-58_1.mp4) **Exact steps for others to reproduce the error** [Please describe the exact steps needed to reproduce the issue] [Based on the default startup or an attached .blend file (as simple as possible)]

Vas commented

2020-12-06 18:45:23 +01:00

Added subscriber: @Alumx

Robert Guetzkow commented

2020-12-07 11:59:12 +01:00

Added subscriber: @rjg

Robert Guetzkow commented

2020-12-07 11:59:12 +01:00

@Alumx am I understanding your video correctly that the pin option and visibility option is sometimes not displayed in the Graph Editor, e.g. when adding a shape key, but it is displayed when adding an action? Removing the action however, does not remove the pin and visibility option?

@Alumx am I understanding your video correctly that the pin option and visibility option is sometimes not displayed in the *Graph Editor*, e.g. when adding a shape key, but it is displayed when adding an action? Removing the action however, does not remove the pin and visibility option?

Luciano Muñoz Sessarego commented

2020-12-07 12:01:56 +01:00

Added subscriber: @LucianoMunoz

Luciano Muñoz Sessarego commented

2020-12-07 12:01:56 +01:00

I would argue pinning should be always present on a per channel basis not on a per channel group.

Sybren A. Stüvel commented

2020-12-07 13:32:48 +01:00

Added subscribers: @vas-1, @dr.sybren

Sybren A. Stüvel commented

2020-12-07 13:32:48 +01:00

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

Sybren A. Stüvel commented

2020-12-07 13:32:48 +01:00

@vas-1 Please fill out the bug report form completely, and don't rely on a video to convey the information. Videos are nice extras, but are not replacement for a textual description of the problem.

Vas commented

2020-12-07 19:29:14 +01:00

Removed subscriber: @vas-1

Vas commented

2020-12-07 19:37:50 +01:00

@dr.sybren added more info! (also you mentioned someone else back there :p)

In #83479#1069859, @LucianoMunoz wrote:
I would argue pinning should be always present on a per channel basis not on a per channel group.

^I agree to this, would be nice universal solution

In #83479#1069851, @rjg wrote:
@Alumx am I understanding your video correctly that the pin option and visibility option is sometimes not displayed in the Graph Editor, e.g. when adding a shape key, but it is displayed when adding an action? Removing the action however, does not remove the pin and visibility option?

yes, this issue is even more severe if you add keyframe for example in Particles > Viewport display

@dr.sybren added more info! (also you mentioned someone else back there :p) > In #83479#1069859, @LucianoMunoz wrote: > I would argue pinning should be always present on a per channel basis not on a per channel group. ^I agree to this, would be nice universal solution > In #83479#1069851, @rjg wrote: > @Alumx am I understanding your video correctly that the pin option and visibility option is sometimes not displayed in the *Graph Editor*, e.g. when adding a shape key, but it is displayed when adding an action? Removing the action however, does not remove the pin and visibility option? yes, this issue is even more severe if you add keyframe for example in Particles > Viewport display ![2020-12-07-18-34-16.gif](https://archive.blender.org/developer/F9490245/2020-12-07-18-34-16.gif)

Sybren A. Stüvel commented

2020-12-08 11:05:23 +01:00

Thanks for the update.

Channel pinning was introduced in 98c7e75897 and was limited to certain channel types.
This means that it's a known limitation of Blender, and not considered a bug.

Thanks for the update. Channel pinning was introduced in 98c7e75897 and was limited to certain channel types. This means that it's a known limitation of Blender, and not considered a bug.

Vas commented

2020-12-08 12:57:02 +01:00

In #83479#1070807, @dr.sybren wrote:
Thanks for the update.

Channel pinning was introduced in 98c7e75897 and was limited to certain channel types.
This means that it's a known limitation of Blender, and not considered a bug.

I mean, I found a way to break the functionality and keep the pin persistent even if it shouldn't be available for those kinds of data blocks
You can force pin availability by adding and removing object type animation
Isn't that literally a bug?

> In #83479#1070807, @dr.sybren wrote: > Thanks for the update. > > Channel pinning was introduced in 98c7e75897 and was limited to certain channel types. > This means that it's a known limitation of Blender, and not considered a bug. I mean, I found a way to break the functionality and keep the pin persistent even if it shouldn't be available for those kinds of data blocks You can force pin availability by adding and removing object type animation Isn't that literally a bug?

Robert Guetzkow commented

2020-12-18 11:15:48 +01:00

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

Robert Guetzkow commented

2020-12-18 11:15:48 +01:00

@dr.sybren as you've marked this as a known issue, I'm setting the status to confirmed.

Philipp Oeser removed the

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Inconsitency in channel pinning mechanic (animation/drivers) #83479