Driver property isn't purple #47433

New Issue

Hjalti Hjálmarsson · 2016-02-16T14:35:10+01:00

Hjalti Hjálmarsson commented

2016-02-16 14:35:10 +01:00

Old driver is lingering from an older version of blender, so a value has a "driver" without being visibly there.

Sergey said he'd take a look.gamera.blend

System Information
Operating system and graphics card

Blender Version
Broken: (example: 2.69.7 4b206af, see splash screen)
Worked: (optional)

Short description of error

Exact steps for others to reproduce the error
Based on a (as simple as possible) attached .blend file with minimum amount of steps

Old driver is lingering from an older version of blender, so a value has a "driver" without being visibly there. Sergey said he'd take a look.[gamera.blend](https://archive.blender.org/developer/F283200/gamera.blend) **System Information** Operating system and graphics card **Blender Version** Broken: (example: 2.69.7 4b206af, see splash screen) Worked: (optional) **Short description of error** **Exact steps for others to reproduce the error** Based on a (as simple as possible) attached .blend file with minimum amount of steps

Hjalti Hjálmarsson commented

2016-02-16 14:35:10 +01:00

Changed status to: 'Open'

Sergey Sharybin was assigned by Hjalti Hjálmarsson

2016-02-16 14:35:10 +01:00

Hjalti Hjálmarsson commented

2016-02-16 14:35:10 +01:00

Added subscriber: @Hjalti

Joshua Leung commented

2016-02-17 06:07:30 +01:00

Added subscriber: @JoshuaLeung

Joshua Leung commented

2016-02-17 06:07:30 +01:00

What seems to contribute to the problems here is that on the properties which aren't getting indicated as being driven, the RNA Paths refer to the shapekeys by index instead of by name.

Adding a new driver to the affected properties will magically make both get detected as being driven.

After further checking, it's because to look up the driver FCurves, we call: RNA_path_from_ID_to_property()
That now only does string-based lookups, hence the driver does not get found.

To fix, we'd probably have to pass the Shapekey datablock down to shapekey_adrcodes_to_paths(), so that we could lookup the names of the shapekeys involved. That however could prove a bit messy to do.

What seems to contribute to the problems here is that on the properties which aren't getting indicated as being driven, **the RNA Paths refer to the shapekeys by index instead of by name**. Adding a new driver to the affected properties will magically make both get detected as being driven. --- After further checking, it's because to look up the driver FCurves, we call: RNA_path_from_ID_to_property() That now only does string-based lookups, hence the driver does not get found. To fix, we'd probably have to pass the Shapekey datablock down to shapekey_adrcodes_to_paths(), so that we could lookup the names of the shapekeys involved. That however could prove a bit messy to do.

Joshua Leung commented

2016-02-17 06:08:46 +01:00

(Side note: For making it easier to see what's going on, I recommend enabling "Show Sliders" in the Graph Editor)

blender-admin commented

2016-02-20 05:55:11 +01:00

This issue was referenced by 6c02c5fb09

This issue was referenced by 6c02c5fb09eae727c4db57c29c705ebe8be92b6b

Joshua Leung commented

2016-02-20 05:58:00 +01:00

Changed status from 'Open' to: 'Resolved'

Joshua Leung closed this issue

2016-02-20 05:58:00 +01:00

Sign in to join this conversation.

3 Participants

Notifications

Due Date

No due date set.

Dependencies

No dependencies set.

Reference: blender/blender#47433

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Driver property isn't purple #47433