Maniphest T80200

Scene strip to cache/prefetching
Confirmed, NormalBUG
Actions

Assigned To
None
Authored By
luke tallarida (tallaridaj)
Aug 28 2020, 6:27 PM
Tags
  • VFX & Video
  • Video Sequencer
  • BF Blender (2.93)
Subscribers
Dalai Felinto (dfelinto)
Janne Aliu (Jaydead)
luke tallarida (tallaridaj)
Peter Fog (tintwotin)
Richard Antalik (ISS)
Sergey Sharybin (sergey)

Description

System Information
Operating system: windows 10
Graphics card: rtx2060

Blender Version
v2.83.0

32:22 - 36:00
https://www.youtube.com/watch?v=MW-wn9htHFM

I posted a question for "blender today" where Pablo Vazquez and @Dalai Felinto (dfelinto) reviewed what I was talking about, and at the end, they mentioned to report it as a bug. i put the time stamps for the video above. my original post read: "i was wondering how to load a scene strip to cache (like prefetch it) in the vse. currently i have to scroll over the clip multiple times, because pressing play and letting it play doesn't load the whole thing to cache."

just to reiterate, I am talking about scene strips. I'm not sure if this is actually a bug or a feature request, but considering that they were messing around with it and told me to report it as a bug, that's all i wanted to do. thank you!

Related Objects

Event Timeline

luke tallarida (tallaridaj) created this task.Aug 28 2020, 6:27 PM
Peter Fog (tintwotin) added a subscriber: Peter Fog (tintwotin).EditedAug 28 2020, 8:50 PM

Currently, it is not possible to prefetch cache the scene strips: https://developer.blender.org/T54259
However it should be possible to cache to disk(Preferences-System-Video Sequencer), but you'll need to use the "No Sync" trick and be patient - since it is very slow - unless you have a SSD?

Richard Antalik (ISS) changed the task status from Needs Triage to Confirmed.Aug 31 2020, 2:34 PM
Richard Antalik (ISS) changed the subtype of this task from "Report" to "Bug".
Richard Antalik (ISS) added projects: VFX & Video, Video Sequencer.
Richard Antalik (ISS) added a subscriber: Richard Antalik (ISS).

With prefetching scene strips the issue is that there is conflict in running threads. This issue is very much on edge between bug and "known issue", but I will dare to classify this as a bug.

Currently only option is as @Peter Fog (tintwotin) said, press play and "go have a coffee", until strip is cached, which is not very nice and limiting workflow.

Sergey Sharybin (sergey) added a subscriber: Sergey Sharybin (sergey).Aug 31 2020, 2:50 PM

@Richard Antalik (ISS), are you planning to work on this in the near-future (2.91/2.92) ?

Richard Antalik (ISS) edited projects, added BF Blender (2.91); removed BF Blender.Aug 31 2020, 3:04 PM
In T80200#1005774, @Sergey Sharybin (sergey) wrote:

@Richard Antalik (ISS), are you planning to work on this in the near-future (2.91/2.92) ?

I think it is worth having a look at this.

I will tag 2.91, if this is more complicated than it looks, I can change status to known issue and at least document what is biggest issue and what needs to be done to implement this.

Sergey Sharybin (sergey) moved this task from Backlog to Blender 2.91 on the VFX & Video board.Sep 1 2020, 11:18 AM
Janne Aliu (Jaydead) added a subscriber: Janne Aliu (Jaydead).Sep 8 2020, 11:04 PM
Bastien Montagne (mont29) moved this task from Backlog to bcon3: Bugs on the BF Blender (2.91) board.Oct 20 2020, 2:42 PM
Dalai Felinto (dfelinto) moved this task from Blender 2.91 to Blender 2.92 on the VFX & Video board.Nov 17 2020, 12:33 PM
Sergey Sharybin (sergey) edited projects, added BF Blender (2.92); removed BF Blender (2.91).Nov 18 2020, 11:46 AM
Bastien Montagne (mont29) moved this task from Backlog to bcon3: Bugs on the BF Blender (2.92) board.Dec 21 2020, 12:31 PM
Bastien Montagne (mont29) edited projects, added BF Blender (2.93); removed BF Blender (2.92).Mar 1 2021, 3:54 PM
Bastien Montagne (mont29) moved this task from Backlog to bcon3: Bugs on the BF Blender (2.93) board.Mar 1 2021, 3:59 PM
Sergey Sharybin (sergey) moved this task from Blender 2.92 to Short-Term on the VFX & Video board.Mar 22 2021, 9:47 AM