Add > Fade on scene strip doesn't work #120370

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opened 2024-04-07 14:49:11 +02:00 by olivier-leclere · 5 comments

System Information
Operating system: Windows 10 Professionnel N 22H2
Graphics card: Nvidia GTX 1060 3g

Blender Version
Broken: (3.3 to 4.1)
Worked: ()

Short description of error

  • I have a scene inside a scene to avoid complications in video editing, well that's what I think
  • I have 2 scenes which contain a montage of a logo with "fade in" etc.
  • when I import my scene inside the other once there the scene import set to sequencer I can see the scene
  • but when I do a "fade in fade out" or when I adjust the alpha key 0 to 1 at the beginning, and 1 to 0 at the end the sequence does anything putting alphas at zero anywhere and the scene reappears later the alpha changes by itself going from 0 to 1 and from 1 to 0
  • if I only put a fade in or a fade out I have the problem to
  • and if I put on another sequence which is not another scene I have not the problem

Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).

**System Information** Operating system: Windows 10 Professionnel N 22H2 Graphics card: Nvidia GTX 1060 3g **Blender Version** Broken: (3.3 to 4.1) Worked: () **Short description of error** - I have a scene inside a scene to avoid complications in video editing, well that's what I think - I have 2 scenes which contain a montage of a logo with "fade in" etc. - when I import my scene inside the other once there the scene import set to sequencer I can see the scene - but when I do a "fade in fade out" or when I adjust the alpha key 0 to 1 at the beginning, and 1 to 0 at the end the sequence does anything putting alphas at zero anywhere and the scene reappears later the alpha changes by itself going from 0 to 1 and from 1 to 0 - if I only put a fade in or a fade out I have the problem to - and if I put on another sequence which is not another scene I have not the problem **Exact steps for others to reproduce the error** Based on the default startup or an attached .blend file (as simple as possible).
olivier-leclere added the
Priority
Normal
Type
Report
Status
Needs Triage
labels 2024-04-07 14:49:12 +02:00

I fixed the problem by reversing the scenes
rather than making the imported scene disappear I did fade out fade in on the one which was a simple video

I fixed the problem by reversing the scenes rather than making the imported scene disappear I did fade out fade in on the one which was a simple video

ok even like that I have problems I will submit my scene before...

ok even like that I have problems I will submit my scene before...
Member

I'm not sure I fully understood the description.

Looks like from here the fade operator only added Volume fade on scene strips but not Opacity. So confirming this for now.

I'm not sure I fully understood the description. Looks like from here the fade operator only added `Volume` fade on scene strips but not `Opacity`. So confirming this for now.
YimingWu added
Module
VFX & Video
Status
Confirmed
Interest
Video Sequencer
and removed
Status
Needs Triage
labels 2024-04-08 05:18:55 +02:00
Member

Looks like in sequencer.py the logic isn't actually correct:

animated_property = "volume" if hasattr(sequence, "volume") else "blend_alpha"

This means a scene strip which has both volume and blend_alpha won't have blend_alpha added into the fade animation.

@iss

Looks like in `sequencer.py` the logic isn't actually correct: ``` animated_property = "volume" if hasattr(sequence, "volume") else "blend_alpha" ``` This means a scene strip which has both `volume` and `blend_alpha` won't have `blend_alpha` added into the fade animation. @iss
YimingWu changed title from problem scene to scene fade in fade out to Add > Fade on scene strip doesn't work 2024-04-08 05:21:58 +02:00

I think that volume property for scenes was introduced after fades. So that should implemented here as well.

I think that volume property for scenes was introduced after fades. So that should implemented here as well.
Richard Antalik added
Type
Bug
and removed
Type
Report
labels 2024-04-16 23:03:25 +02:00
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Reference: blender/blender#120370
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