Insert and modify keyframes on evaluation time for path animation with linear interpolation impossible #59178
Labels
No Label
Interest
Alembic
Interest
Animation & Rigging
Interest
Asset Browser
Interest
Asset Browser Project Overview
Interest
Audio
Interest
Automated Testing
Interest
Blender Asset Bundle
Interest
BlendFile
Interest
Collada
Interest
Compatibility
Interest
Compositing
Interest
Core
Interest
Cycles
Interest
Dependency Graph
Interest
Development Management
Interest
EEVEE
Interest
EEVEE & Viewport
Interest
Freestyle
Interest
Geometry Nodes
Interest
Grease Pencil
Interest
ID Management
Interest
Images & Movies
Interest
Import Export
Interest
Line Art
Interest
Masking
Interest
Metal
Interest
Modeling
Interest
Modifiers
Interest
Motion Tracking
Interest
Nodes & Physics
Interest
OpenGL
Interest
Overlay
Interest
Overrides
Interest
Performance
Interest
Physics
Interest
Pipeline, Assets & IO
Interest
Platforms, Builds & Tests
Interest
Python API
Interest
Render & Cycles
Interest
Render Pipeline
Interest
Sculpt, Paint & Texture
Interest
Text Editor
Interest
Translations
Interest
Triaging
Interest
Undo
Interest
USD
Interest
User Interface
Interest
UV Editing
Interest
VFX & Video
Interest
Video Sequencer
Interest
Virtual Reality
Interest
Vulkan
Interest
Wayland
Interest
Workbench
Interest: X11
Legacy
Blender 2.8 Project
Legacy
Milestone 1: Basic, Local Asset Browser
Legacy
OpenGL Error
Meta
Good First Issue
Meta
Papercut
Meta
Retrospective
Meta
Security
Module
Animation & Rigging
Module
Core
Module
Development Management
Module
EEVEE & Viewport
Module
Grease Pencil
Module
Modeling
Module
Nodes & Physics
Module
Pipeline, Assets & IO
Module
Platforms, Builds & Tests
Module
Python API
Module
Render & Cycles
Module
Sculpt, Paint & Texture
Module
Triaging
Module
User Interface
Module
VFX & Video
Platform
FreeBSD
Platform
Linux
Platform
macOS
Platform
Windows
Priority
High
Priority
Low
Priority
Normal
Priority
Unbreak Now!
Status
Archived
Status
Confirmed
Status
Duplicate
Status
Needs Info from Developers
Status
Needs Information from User
Status
Needs Triage
Status
Resolved
Type
Bug
Type
Design
Type
Known Issue
Type
Patch
Type
Report
Type
To Do
No Milestone
No project
No Assignees
7 Participants
Notifications
Due Date
No due date set.
Dependencies
No dependencies set.
Reference: blender/blender#59178
Loading…
Reference in New Issue
No description provided.
Delete Branch "%!s(<nil>)"
Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?
System Information
Operating system: Win 10 Home
Graphics card: NVIDIA GTX 1050
Blender Version
Broken: 2.80,
9a8b6d51c1
, blender2.8, 2018-12-11Short description of error
Insert / modify keyframe values in evaluation time for path animation on bezier curve with linear interpolation impossible. Value resets to first value for first set keyframe.
Exact steps for others to reproduce the error
Added subscriber: @comvico
Added subscriber: @ZedDB
I can not reproduce this. However, I think this might be related to an other issue perhaps.
Could you give me a minimal .blend file with this issue? That way I can see if I can reproduce this on a blend file you created.
Hi Sebastian.
Please find two files attached. Once you opened the .blend file, just click into the Time Evaluation field and try to change it.
bug-evaluation-time-lin-interpol.blend
Added subscriber: @Sergey
I can reproduce the issue on the .blend file you gave me!
@Sergey I'm guessing it's the same root cause as in issue #58739
It reads somehow similar. In my case the bug is just present once I change the interpolation from bezier to linear. It's when it breaks the function.
I got so far a plenty of plugins installed - it might be related. I didn't check though.
Added subscriber: @camomiles
This is caused by various areas of Blender doing drivers animation explicitly. This is something what should be left to dependency graph nowadays. Without this the old system which is based on checking RECALC flags on animation data fails dramatically (there is no reliable way we can set that flag within context of copy-on-write).
Here is a patch for this specific issue, but it might potentially introduce another ones, so need some more testing first:
P898: Fix for #59178
Added subscriber: @angavrilov
@Sergey IIRC the problem here is that there is a magic recalc flag that makes that call to evaluate drivers also update keyed animation, and that flag is never cleared once set - so presumably the solution is to get rid of adt->recalc?
@angavrilov , yes. But that's part of the issue. Other part is that animation shouldn't be evaluated from object/object data/particles update.
This issue was referenced by
83f8f44791
Changed status from 'Open' to: 'Resolved'