VSE: Changes in F-curve noise modifier are not shown #109579

New Issue

Frank · 2023-07-01T11:45:05+02:00

Frank commented

2023-07-01 11:45:05 +02:00

System Information
Operating system: Windows-10-10.0.18363-SP0 64 Bits
Graphics card: AMD Radeon HD 6800 Series ATI Technologies Inc. 4.5.13399 Core Profile Context 15.201.1151.1008

Blender Version
Broken: version: 3.6.0, branch: blender-v3.6-release, commit date: 2023-06-27 08:08, hash: c7fc78b81ecb
Worked: (newest version of Blender that worked as expected)

Short description of error
When you animate the Y-position of a strip in the VSE and put a noise modifier on the F-curve, any later changes to the settings are not shown in the VSE preview window (preview cache not emptied??).

Exact steps for others to reproduce the error

Open the attached blend file.
Play the animation. You see the cube shake heavily.
Change the strength of the F-curve noise modifier from 1000 to 1.
Play the animation. The heavy shaking is still there, while it should be gone.
Save the updated blend file and reload it.
Play the animation. The shaking is gone now. So you need to save and reload the file to see the effect of the changes that were made in the F-curve noise modifier. This is very inconvenient.

NOTE: When you play only the first 100 frames of the animation, set the noise strength to 1 and play the animation again, frame 101-250 play correctly (without the shaking), but frame 1-100 still show the shaking.
It looks like the preview cache is not being emptied when a change it made in the noise modifier.

**System Information** Operating system: Windows-10-10.0.18363-SP0 64 Bits Graphics card: AMD Radeon HD 6800 Series ATI Technologies Inc. 4.5.13399 Core Profile Context 15.201.1151.1008 **Blender Version** Broken: version: 3.6.0, branch: blender-v3.6-release, commit date: 2023-06-27 08:08, hash: `c7fc78b81ecb` Worked: (newest version of Blender that worked as expected) **Short description of error** When you animate the Y-position of a strip in the VSE and put a noise modifier on the F-curve, any later changes to the settings are not shown in the VSE preview window (preview cache not emptied??). **Exact steps for others to reproduce the error** 1. Open the attached blend file. 2. Play the animation. You see the cube shake heavily. 3. Change the strength of the F-curve noise modifier from 1000 to 1. 4. Play the animation. The heavy shaking is still there, while it should be gone. 5. Save the updated blend file and reload it. 6. Play the animation. The shaking is gone now. So you need to save and reload the file to see the effect of the changes that were made in the F-curve noise modifier. This is very inconvenient. NOTE: When you play only the first 100 frames of the animation, set the noise strength to 1 and play the animation again, frame 101-250 play correctly (without the shaking), but frame 1-100 still show the shaking. It looks like the preview cache is not being emptied when a change it made in the noise modifier.

Noise modifier bug.blend

900 KiB

👀 1

Frank added the

labels 2023-07-01 11:45:06 +02:00

Iliya Katushenock added the