Baking Normal and Displacement from Multires is different than previous versions #109042

New Issue

Daniel · 2023-06-16T05:20:32+02:00

Daniel commented

2023-06-16 05:20:32 +02:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 535.98

Blender Version
Broken: version: 3.5.1, branch: blender-v3.5-release, commit date: 2023-04-24 18:11, hash: e1ccd9d4a1d3 & 4.0 alpha
Worked: Blender 3.3.7 LTS & 3.4.1

Caused by 1af62cb3bf

Short description of error
Hi, so the error is about Baking from Multires. when Level Viewport parameter on the Multires modifier is set to 0 and Render to max (on .blend shared 4), the result look pretty much equal; but as Level Viewport parameter gets closer to the max there should be more "blank space" on the normal baked images as there are less differences between low and high versions; it works that way on 3.3.7 LTS and 3.4.1, but the result changes from 3.5.1, and on 4.0 it takes much longer to bake and the same error appears.

It happens on Normal and Displacement baking

Here some examples on a course project (which I can't provide as it is too large) and on UDIM Monster project:

Personal Project Normal Map

UDIM Monster Normal Map 1001

UDIM Monster Displacement Map 1002

Exact steps for others to reproduce the error
1- Open the attatched file, it has been modified to have a Multires modifier with 4 subs, viewport level is on 2.
2- Go to Properties Tab, Bake section, select Normals or Displacement and hit Bake.

That's all, thank you very much. saludos :)/

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 535.98 **Blender Version** Broken: version: 3.5.1, branch: blender-v3.5-release, commit date: 2023-04-24 18:11, hash: `e1ccd9d4a1d3` & 4.0 alpha Worked: Blender 3.3.7 LTS & 3.4.1 Caused by 1af62cb3bf46f0cd328ab0840a1363eca938c628 **Short description of error** Hi, so the error is about Baking from Multires. when Level Viewport parameter on the Multires modifier is set to 0 and Render to max (on .blend shared 4), the result look pretty much equal; but as Level Viewport parameter gets closer to the max there should be more "blank space" on the normal baked images as there are less differences between low and high versions; it works that way on 3.3.7 LTS and 3.4.1, but the result changes from 3.5.1, and on 4.0 it takes much longer to bake and the same error appears. It happens on Normal and Displacement baking Here some examples on a course project (which I can't provide as it is too large) and on UDIM Monster project: ![Illustration](/attachments/1b7d6345-5880-4442-b215-27231cb43174) *Personal Project Normal Map* ![Illustration2](/attachments/16a4ef6f-06fe-4060-a259-54dbbf9a412c) *UDIM Monster Normal Map 1001* ![Illustration3](/attachments/e35b235f-3efc-4042-8ea1-c96144721ef9) *UDIM Monster Displacement Map 1002* **Exact steps for others to reproduce the error** 1- Open the attatched file, it has been modified to have a Multires modifier with 4 subs, viewport level is on 2. 2- Go to Properties Tab, Bake section, select Normals or Displacement and hit Bake. That's all, thank you very much. saludos :)/

Illustration.jpg

7.7 MiB

udim-monster.blend

71 MiB

Illustration3.jpg

1.4 MiB

Illustration2.jpg

3.1 MiB

Daniel added the

labels 2023-06-16 05:20:32 +02:00

YimingWu commented

2023-06-16 05:23:34 +02:00

Hi @Daniel-Verduzco-Villanueva , The blend file is not attaching, could you try uploading it again? Thanks!

Daniel commented

2023-06-16 05:44:26 +02:00

Hi @Daniel-Verduzco-Villanueva , The blend file is not attaching, could you try uploading it again? Thanks!

Aaaah Sorry ;-;
There it goes

> Hi @Daniel-Verduzco-Villanueva , The blend file is not attaching, could you try uploading it again? Thanks! Aaaah Sorry ;-; There it goes

udim-monster.blend

71 MiB

YimingWu commented

2023-06-16 09:06:38 +02:00

I haven't been able to bake it at such high level of details, but I managed to test baking it under level 1 with blender 4.0. 3.3 does not read the UV information in udim-monster properly.

Does this look too "strong"? I can't really get a proper reference for what's "correct".

@PratikPB2123 could you try this file and see if anything weird happening?

I haven't been able to bake it at such high level of details, but I managed to test baking it under level 1 with blender 4.0. 3.3 does not read the UV information in `udim-monster` properly. ![图片](/attachments/8873ca7f-f80c-4d61-853a-cfa26990a960) Does this look too "strong"? I can't really get a proper reference for what's "correct". @PratikPB2123 could you try this file and see if anything weird happening?

图片.png

415 KiB

图片.png

298 KiB

Daniel commented

2023-06-16 23:46:20 +02:00

Hi @ChengduLittleA , I faced the same problem on 3.3, this message appears:

As the mesh actually has been Unwrapped it's just necesary to enter Edit Mode and go back to Object Mode, then it detects it. Later this message appears:

For it I filled every tile and then baking worked ^^

I don't know if it counts as another bug ^^'
Hope it helps :3

Hi @ChengduLittleA , I faced the same problem on 3.3, this message appears: ![image](/attachments/d2ebb00e-761c-4870-8b73-7ea4cc55f4fb) As the mesh actually has been Unwrapped it's just necesary to enter Edit Mode and go back to Object Mode, then it detects it. Later this message appears: ![image](/attachments/b1e2e374-227a-4f0e-b156-a36c96345a3b) For it I filled every tile and then baking worked ^^ ![image](/attachments/8ac56691-cc98-4b7a-8c80-67c1b0700424) I don't know if it counts as another bug ^^' Hope it helps :3

image.png

16 KiB

image.png

6.4 KiB

image.png

5.4 KiB

YimingWu commented

2023-06-17 11:14:03 +02:00

@Daniel-Verduzco-Villanueva Will check this way, thanks, although I suspect that doing it like this would lose UV info? Did you make the file in 3.3 or later version? It's however best to have a more simplified file, makes it easier to investigate since baking would take some time.

Philipp Oeser commented

2023-06-20 14:57:41 +02:00

Will check

Philipp Oeser added

and removed

labels 2023-06-20 14:59:40 +02:00

Philipp Oeser commented

2023-06-20 15:49:09 +02:00

Caused by 1af62cb3bf

CC @HooglyBoogly

NOTE: baking UDIMs from multires totally freezes in main atm. will report that separately

Caused by 1af62cb3bf46f0cd328ab0840a1363eca938c628 CC @HooglyBoogly NOTE: baking UDIMs from multires totally freezes in main atm. will report that separately

Philipp Oeser added

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Baking Normal and Displacement from Multires is different than previous versions #109042