Baking emissive still calculates all scene instead 1 object #88011

New Issue

Vyacheslav Kobozev · 2021-05-04T02:25:46+02:00

2021-05-04 02:25:46 +02:00

System Information
Operating system: Windows-8.1-6.3.9600-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 466.27

Blender Version
Broken: version: 2.93.0 Beta, branch: master, commit date: 2021-05-01 15:22, hash: 7c5e009655

In this case (and usually) emit do not depend on environment.
But in this example it is still calculate multires for nothing, consumes time and memory.

2021-05-04_03-17-04.mp4

bakeCube.blend

**System Information** Operating system: Windows-8.1-6.3.9600-SP0 64 Bits Graphics card: NVIDIA GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 466.27 **Blender Version** Broken: version: 2.93.0 Beta, branch: master, commit date: 2021-05-01 15:22, hash: `7c5e009655` In this case (and usually) emit do not depend on environment. But in this example it is still calculate multires for nothing, consumes time and memory. [2021-05-04_03-17-04.mp4](https://archive.blender.org/developer/F10052098/2021-05-04_03-17-04.mp4) [bakeCube.blend](https://archive.blender.org/developer/F10052099/bakeCube.blend)

Vyacheslav Kobozev commented

2021-05-04 02:25:46 +02:00

Added subscriber: @Vyach

blender-admin commented

2021-05-04 02:25:46 +02:00

#94576 was marked as duplicate of this issue

blender-admin commented

2021-05-04 02:25:46 +02:00

#88648 was marked as duplicate of this issue

Germano Cavalcante commented

2021-05-04 23:37:55 +02:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2021-05-04 23:37:55 +02:00

Changed status from 'Needs Triage' to: 'Needs Developer To Reproduce'

Germano Cavalcante commented

2021-05-04 23:37:55 +02:00

The Cycles engine is being reworked and certainly baking system will be reviewed,.
There are some tasks that mention this:

#87837 (Cycles X - Restoring Features)
#68925 (Baking workflow revamp)

However, I found nothing about avoiding reevaluating the entire scene for bake emissions.
(I'm not sure if the developers have planned this, and it doesn't look like something that would be ignored or overlooked).
I don't think this can be confirmed as a bug, it is one more thing that could be added to the task plans.

The Cycles engine is being reworked and certainly baking system will be reviewed,. There are some tasks that mention this: - #87837 (Cycles X - Restoring Features) - #68925 (Baking workflow revamp) However, I found nothing about avoiding reevaluating the entire scene for bake emissions. (I'm not sure if the developers have planned this, and it doesn't look like something that would be ignored or overlooked). I don't think this can be confirmed as a bug, it is one more thing that could be added to the task plans.

Vyacheslav Kobozev commented

2021-05-06 11:50:36 +02:00

@mano-wii okay, thanks for info. And I agree: even if it is not a bug, it is hit to performance and still needs attention.

Brecht Van Lommel commented

2021-05-17 20:04:26 +02:00

Added subscriber: @brecht

Brecht Van Lommel commented

2021-05-17 20:04:26 +02:00

Changed status from 'Needs Developer To Reproduce' to: 'Archived'

Brecht Van Lommel closed this issue

2021-05-17 20:04:26 +02:00

Brecht Van Lommel commented

2021-05-17 20:04:26 +02:00

Baking can certainly be optimized, but that's outside the scope of the bug tracker.

Vyacheslav Kobozev commented

2021-05-18 13:06:56 +02:00

@brecht okay, got it. I hope, it will be another one record in todo list for porformance improvement.
Such unnecessary re-evaluations in few areas pushes back Blender a lot…

@brecht okay, got it. I hope, it will be another one record in todo list for porformance improvement. Such unnecessary re-evaluations in few areas pushes back Blender a lot…

Philipp Oeser commented

2021-07-13 22:34:46 +02:00

Added subscribers: @BenoitAlexis, @lichtwerk

Philipp Oeser commented

2022-01-03 10:14:54 +01:00

Added subscriber: @Pushy

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Baking emissive still calculates all scene instead 1 object #88011