Video preview disappears when scrubbing cursor over Audio (Video Sequencer) #62754

New Issue

Adam Janz · 2019-03-19T21:41:27+01:00

Adam Janz commented

2019-03-19 21:41:27 +01:00

System Information
Operating system: Windows-8.1-6.3.9600 64 Bits
Graphics card: GeForce GTX 970/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 417.22

Blender Version
Broken: version: 2.80 (sub 48), branch: master, commit date: 2019-03-15 00:41, hash: 388ff003e2

Short description of error
I've noticed this behavior in both Blender 2.79 and Blender 2.8. When scrubbing the cursor over a track containing audio, the video preview disappears, but if scrubbing over a track containing video, it remains.

From a video editing perspective, this behavior would be considered undesirable. But it also makes animation (with an open video preview window for lip sync) extremely difficult as you cannot scrub logically over the audio waveforms, you instead have to scrub over a video track or scrub on the Timeline window itself to avoid the video preview vanishing.

Generally, an editor wants to preview the entire contents of their timeline regardless of where they scrub, not just the track where their cursor is hovering. If they wanted a single track they would use a solo/mute button to achieve this. Please let me know if there is a setting to keep the video preview active at all times regardless of selected track if such functionality already exists and I am unaware of it.

Thank you so much! :-)

Sincerely,
Adam Janz

**System Information** Operating system: Windows-8.1-6.3.9600 64 Bits Graphics card: GeForce GTX 970/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 417.22 **Blender Version** Broken: version: 2.80 (sub 48), branch: master, commit date: 2019-03-15 00:41, hash: `388ff003e2` **Short description of error** I've noticed this behavior in both Blender 2.79 and Blender 2.8. When scrubbing the cursor over a track containing audio, the video preview disappears, but if scrubbing over a track containing video, it remains. From a video editing perspective, this behavior would be considered undesirable. But it also makes animation (with an open video preview window for lip sync) extremely difficult as you cannot scrub logically over the audio waveforms, you instead have to scrub over a **video track** or scrub on the **Timeline** window itself to avoid the video preview vanishing. Generally, an editor wants to preview the entire contents of their timeline regardless of where they scrub, not just the track where their cursor is hovering. If they wanted a single track they would use a solo/mute button to achieve this. Please let me know if there is a setting to keep the video preview active at all times regardless of selected track if such functionality already exists and I am unaware of it. Thank you so much! :-) Sincerely, Adam Janz

Adam Janz commented

2019-03-19 21:41:27 +01:00

Added subscriber: @AdamJanz

ChristopherAnderssarian commented

2019-03-20 00:04:53 +01:00

Added subscriber: @ChristopherAnderssarian

Richard Antalik was assigned by ChristopherAnderssarian

2019-03-20 00:04:53 +01:00

ChristopherAnderssarian commented

2019-03-20 00:04:53 +01:00

Yeah, I see where your coming from...

Generally, an editor wants to preview the entire contents of their timeline regardless of where they scrub, not just the track where their cursor is hovering. If they wanted a single track they would use a solo/mute button to achieve this.

This is where Blender is special, scrubbing over a strip is soloing that strip, it's very helpful when there are stacks of them. Maybe the same could be implemented for audio strips....

I wouldn't mind the video preview on audio scrubbing, after all you can always disable it.

Yeah, I see where your coming from... > Generally, an editor wants to preview the entire contents of their timeline regardless of where they scrub, not just the track where their cursor is hovering. If they wanted a single track they would use a solo/mute button to achieve this. This is where Blender is special, scrubbing over a strip is soloing that strip, it's very helpful when there are stacks of them. Maybe the same could be implemented for audio strips.... I wouldn't mind the video preview on audio scrubbing, after all you can always disable it.

Adam Janz commented

2019-03-20 02:37:35 +01:00

Thanks Christopher. Yes, being able to enable/disable the video preview on audio scrubbing would be extremely helpful (or a switch to toggle "full comp" vs "selected track" video preview while scrubbing). :-)

Richard Antalik was unassigned by Dalai Felinto

2019-12-23 16:34:53 +01:00

Dalai Felinto commented

2019-12-23 16:34:53 +01:00

Added subscriber: @iss

Richard Antalik commented

2020-01-28 17:01:00 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Richard Antalik closed this issue

2020-01-28 17:01:00 +01:00

Richard Antalik self-assigned this 2020-01-28 17:01:00 +01:00

Richard Antalik commented

2020-01-28 17:01:00 +01:00

Now it is impossible to do this, so I am closing as resolved.

Adam Janz commented

2020-01-28 19:29:27 +01:00

Hi @iss the issue is still occurring. I took a screen recording of it just now: https://youtu.be/a7W8NiobWpY Short clip shows how scrubbing over an audio clip causes an image sequence on the track above to disappear in the preview window, but scrubbing over a blank area or over the image sequence itself shows the video playback correctly. Thanks for looking into this bug.