GPencil: Cached grease pencil objects renders up to 5 times faster when LineArt Modifiers are deleted after baking #99492

New Issue

Christoph Werner · 2022-07-06T17:07:49+02:00

Christoph Werner commented

2022-07-06 17:07:49 +02:00

System Information
Version: 3.2.0, branch: master, commit date: 2022-06-08 10:22, hash: e05e1e3691, type: release
Build date: 2022-06-08, 11:13:18
Platform: 'Windows-10-10.0.22000-SP0'

Short description of error
You can reduce the render time of grease pencil objects by deleting all Lineart modifiers after the caching process of grease pencil objects.
Are the Linart modifiers not deleted the render times are much slower. This seem to be a bug.

The issue happens also in blender version 3.0.1, version 3.1.2 and 3.2.1RC.

Exact steps for others to reproduce the error
This problem is happening in our production scenes. I tried to reproduce the issue inside a neutral file to publish it for you. But for any reason the problem wasn't able to be reproduced. Seem to be a special situation again...

**System Information** Version: 3.2.0, branch: master, commit date: 2022-06-08 10:22, hash: e05e1e369187, type: release Build date: 2022-06-08, 11:13:18 Platform: 'Windows-10-10.0.22000-SP0' **Short description of error** You can reduce the render time of grease pencil objects by deleting all Lineart modifiers after the caching process of grease pencil objects. Are the Linart modifiers not deleted the render times are much slower. This seem to be a bug. The issue happens also in blender version 3.0.1, version 3.1.2 and 3.2.1RC. **Exact steps for others to reproduce the error** This problem is happening in our production scenes. I tried to reproduce the issue inside a neutral file to publish it for you. But for any reason the problem wasn't able to be reproduced. Seem to be a special situation again...

Christoph Werner commented

2022-07-06 17:07:49 +02:00

Added subscriber: @ChristophWerner

Christoph Werner commented

2022-07-06 17:08:49 +02:00

Added subscriber: @ChengduLittleA

Germano Cavalcante commented

2022-07-06 18:42:50 +02:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2022-07-06 18:42:50 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Germano Cavalcante commented

2022-07-06 18:42:50 +02:00

Thanks for the report, but in order to forward the bug to the developers, we have to be able to redo them.

If you find any information that helps others to reproduce the problem, be sure to include it.

Thanks for the report, but in order to forward the bug to the developers, we have to be able to redo them. If you find any information that helps others to reproduce the problem, be sure to include it.

Christoph Werner commented

2022-07-06 18:58:52 +02:00

In #99492#1386474, @mano-wii wrote:
Thanks for the report, but in order to forward the bug to the developers, we have to be able to redo them.

If you find any information that helps others to reproduce the problem, be sure to include it.

Thank you for the reminder, but I'm in direct contact with Yiming and he asked me to place it here, to not to forget the issue... :)

> In #99492#1386474, @mano-wii wrote: > Thanks for the report, but in order to forward the bug to the developers, we have to be able to redo them. > > If you find any information that helps others to reproduce the problem, be sure to include it. Thank you for the reminder, but I'm in direct contact with Yiming and he asked me to place it here, to not to forget the issue... :)

YimingWu was assigned by Germano Cavalcante

2022-07-06 21:14:06 +02:00

Antonio Vazquez changed title from ~~Grease Pencil: Cached grease pencil objects renders up to 5 times faster when LineArt Modifiers are deleted after baking~~ to GPencil: Cached grease pencil objects renders up to 5 times faster when LineArt Modifiers are deleted after baking

2022-07-07 16:26:56 +02:00

YimingWu commented

2022-07-10 05:00:05 +02:00

I'll take a look :)

YimingWu commented

2022-07-11 04:31:36 +02:00

@ChristophWerner Hi! I couldn't reproduce this either. By any chance you added another modifier after baking existing ones? Because current logic does seem to fail if other ones are added after baking and that would trigger another calculation.

Christoph Werner commented

2022-07-11 09:06:17 +02:00

In #99492#1388495, @ChengduLittleA wrote:
@ChristophWerner Hi! I couldn't reproduce this either. By any chance you added another modifier after baking existing ones? Because current logic does seem to fail if other ones are added after baking and that would trigger another calculation.

No, I haven't added another modifier after the baking.

We bake the frames and start to render. If we delete the Line Art modifiers after baking, then the rendering is processed much faster.

If it's ok for you I'll try to create a reproducable scene and send it to you.

Best wishes
Chris

> In #99492#1388495, @ChengduLittleA wrote: > @ChristophWerner Hi! I couldn't reproduce this either. By any chance you added another modifier after baking existing ones? Because current logic does seem to fail if other ones are added after baking and that would trigger another calculation. No, I haven't added another modifier after the baking. We bake the frames and start to render. If we delete the Line Art modifiers after baking, then the rendering is processed much faster. If it's ok for you I'll try to create a reproducable scene and send it to you. Best wishes Chris

Germano Cavalcante commented

2022-08-17 20:04:29 +02:00

Changed status from 'Needs User Info' to: 'Needs Developer To Reproduce'