Scopes in Image Editor make masking painfully slow #44761

New Issue

Sebastian Koenig · 2015-05-19T10:24:15+02:00

Sebastian Koenig commented

2015-05-19 10:24:15 +02:00

System Information
OSX 10.10.2 GTX 660ti
Blender Version
Broken: 2.74.5 (183b643)
Worked: (optional)

Short description of error
Scopes in Image Editor make masking with Viewer Node as input painfully slow. I realize that this issue has been brought up in other instances before, with the simple answer "close the scopes panel". But the scopes are a Tab in the toolshelf, and for masking the user needs the masking tools as well, so the toolshelf has to be open. But scopes seem to be calculated even though the scopes tab isn't visible.
So maybe one way to fix this would be to make scopes aware if their tab is open. Or just make them smarter on when to update. Or make a button "use scopes".
Apart from that I think it is also annoying how much scopes slow down rendering. Even if the "Lock interface" button in Dimensions panel is pressed...

Exact steps for others to reproduce the error
Open attached file, do a render, try to edit the mask. Notice how slow it responds to user input. It gets a lot better when toolshelf is closed.

masking_scopes.blend

**System Information** OSX 10.10.2 GTX 660ti **Blender Version** Broken: 2.74.5 (183b643) Worked: (optional) **Short description of error** Scopes in Image Editor make masking with Viewer Node as input painfully slow. I realize that this issue has been brought up in other instances before, with the simple answer "close the scopes panel". But the scopes are a Tab in the toolshelf, and for masking the user needs the masking tools as well, so the toolshelf has to be open. But scopes seem to be calculated even though the scopes tab isn't visible. So maybe one way to fix this would be to make scopes aware if their tab is open. Or just make them smarter on when to update. Or make a button "use scopes". Apart from that I think it is also annoying how much scopes slow down rendering. Even if the "Lock interface" button in Dimensions panel is pressed... **Exact steps for others to reproduce the error** Open attached file, do a render, try to edit the mask. Notice how slow it responds to user input. It gets a lot better when toolshelf is closed. [masking_scopes.blend](https://archive.blender.org/developer/F177414/masking_scopes.blend)

Sebastian Koenig commented

2015-05-19 10:24:15 +02:00

Changed status to: 'Open'

Campbell Barton was assigned by Sebastian Koenig

2015-05-19 10:24:15 +02:00

Sebastian Koenig commented

2015-05-19 10:24:15 +02:00

Added subscriber: @sebastian_k

Antonis Ryakiotakis commented

2015-05-19 12:09:00 +02:00

Added subscriber: @Psy-Fi

Antonis Ryakiotakis commented

2015-05-19 12:09:00 +02:00

I've looked at tab detection in the past and it's not so easy. Other possibility is to disable them completely just like in paint mode

Sergey Sharybin commented

2015-05-19 18:25:18 +02:00

Added subscriber: @Sergey

Sergey Sharybin commented

2015-05-19 18:25:18 +02:00

Co-incidentally enough was looking into making scopes more realtime, but it's quite tricky to do actually -- computation is not so difficult, so even making it threaded makes it so worse CPU cache utilization kills all the performance. So started to think that it could make sense to make scopes a job, similar to the material update. This way it'll be possible to suspend actual scopes calculation for a few moment, allowing other tool to work and re-trigger update. And actual update will happen after tool started modifying the image.

Bastien Montagne commented

2015-05-26 19:50:35 +02:00

Added subscriber: @mont29

Bastien Montagne commented

2015-05-26 19:50:35 +02:00

Changed status from 'Open' to: 'Archived'

Bastien Montagne closed this issue

2015-05-26 19:50:35 +02:00

Bastien Montagne commented

2015-05-26 19:50:35 +02:00

Scopes are painfully slow , this is old known TODO, no need to keep a report about it. ;)

Sebastian Koenig commented

2015-05-26 23:09:30 +02:00

Just for the sake of completeness, I am not complaining that scopes are slow (well, sure, I would love to have them faster). I am complaining that they slow down masking even if I don't have the scopes open.

Sign in to join this conversation.

No Label

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Scopes in Image Editor make masking painfully slow #44761