Setting nonexistent properties on AnimationTree fails silently

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
52/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Quiet
Tech stack
cpp
Domain
game-dev

Research direction

Start by tracing how AnimationTree handles set() for an unknown property and compare it with the valid parameters/headbob_intensity/blend_amount path shown in the issue. Use the linked minimal reproduction project to reproduce the silent failure; done means setting a nonexistent property reports an error while valid property setting still works.

Written by the indexing model from the issue text.

Description

discussion topic:animation
Tested versions

Reproducible in Redot 26.2

System information

N/A affects all systems

Issue description

animation_tree.set("headbob_intensity", headbob_amt)
should produce an error but instead fails silently. This property does not exist. The correct code should be:
a_tree.set("parameters/headbob_intensity/blend_amount", headbob_amt)

Steps to reproduce

Call set() on any animation tree using a nonexistent property. This will fail silently.

Minimal reproduction project (MRP)

fail.zip

Dominant language
C++
Stars
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Forks
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Avg merge
4d 1h
Merged PRs (30d)
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Getting set up

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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