UDIM Packing internally : Tiles appears black after reopening #107646

New Issue

xavier.pothron · 2023-05-05T10:55:28+02:00

xavier.pothron commented

2023-05-05 10:55:28 +02:00

System Information

Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3070 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 528.02

Blender Version

Broken: version: 3.5.1, branch: blender-v3.5-release, commit date: 2023-04-24 18:11, hash: e1ccd9d4a1d3
Worked: (newest version of Blender that worked as expected)

Short description of error

Seems that packing UDIM internally still does not work in 3.5. If you pack then close and reopen all the tiled textures appears black and cannot be unpacked.

Exact steps for others to reproduce the error

On the udim-monster.blend demo file :

Bake any map to the godzilUV
Save, close and reopen all tiles now appears black

**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3070 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 528.02 **Blender Version** Broken: version: 3.5.1, branch: blender-v3.5-release, commit date: 2023-04-24 18:11, hash: `e1ccd9d4a1d3` Worked: (newest version of Blender that worked as expected) **Short description of error** Seems that packing UDIM internally still does not work in 3.5. If you pack then close and reopen all the tiled textures appears black and cannot be unpacked. **Exact steps for others to reproduce the error** On the udim-monster.blend demo file : - Bake any map to the godzilUV - Save, close and reopen all tiles now appears black

xavier.pothron added the

labels 2023-05-05 10:55:29 +02:00

Germano Cavalcante commented

2023-05-05 23:00:03 +02:00

Blender's Save operator does not save the edited images.
For images you need to explicitly save them with their specific Save operation (in the image editor).
This works like this since old versions and it's like this by design.

Is this the problem you are seeing?

Blender's Save operator does not save the edited images. For images you need to explicitly save them with their specific Save operation (in the image editor). This works like this since old versions and it's like this by design. Is this the problem you are seeing?

xavier.pothron commented

2023-05-05 23:11:16 +02:00

Thanks for the response, I actually save the pack udim texture before saving the file, closing and reopening it.

From what I’ve seen & understood on the TODO list of Udim it is check as done and it seems that it still not working properly : #72390, https://archive.blender.org/developer/D14395, https://wiki.blender.org/wiki/Reference/Release_Notes/3.3/Sculpt

Thanks for the response, I actually save the pack udim texture before saving the file, closing and reopening it. From what I’ve seen & understood on the TODO list of Udim it is check as done and it seems that it still not working properly : https://projects.blender.org/blender/blender/issues/72390, https://archive.blender.org/developer/D14395, https://wiki.blender.org/wiki/Reference/Release_Notes/3.3/Sculpt

Jesse Yurkovich commented

2023-05-05 23:23:05 +02:00

Packing seems to work. I did the following:

Take that demo file
Pack every texture
Save that file somewhere (the file becomes very large)
Opening that new file I see that all the textures are still correct

What are you doing differently? Carefully list out your steps. It seems like you are Baking, which piece of the monster did you bake and how? Did the newly baked images work before you saved/reopened?

Packing seems to work. I did the following: - Take that demo file - Pack every texture - Save that file somewhere (the file becomes very large) - Opening that new file I see that all the textures are still correct What are you doing differently? Carefully list out your steps. It seems like you are Baking, which piece of the monster did you bake and how? Did the newly baked images work before you saved/reopened?

xavier.pothron commented

2023-05-05 23:34:22 +02:00

Sorry for being not precise enough regarding the steps.

What I did :

Simple bake of the diffuse onto the godzilluv that have a UDIM layout
After baking the image appears with all the data in the image viewer
I then pack it
Save the blender file (not a save as)
Reopen it
All the tiles are now black

Also, it works as intended with the same exact steps if the textures/images are not UDIM.

Will redo some tests and post screenshots and video as soon as I can if that can help.

Sorry for being not precise enough regarding the steps. What I did : - Simple bake of the diffuse onto the godzilluv that have a UDIM layout - After baking the image appears with all the data in the image viewer - I then pack it - Save the blender file (not a save as) - Reopen it - All the tiles are now black Also, it works as intended with the same exact steps if the textures/images are not UDIM. Will redo some tests and post screenshots and video as soon as I can if that can help.

xavier.pothron commented

2023-05-08 13:11:02 +02:00

Little update : the feature work if you previously saved externally the textures and then pack it. The problem occurs when you directly packing the texture.

As seen in the pictures, data look fine, then I save, if I reopen the file every tile are now black. Futhermore you can actually unpack the black tiles and they gonna write fine on disk but still gonna appear and render black.

Little update : the feature work if you previously saved externally the textures and then pack it. The problem occurs when you directly packing the texture. As seen in the pictures, data look fine, then I save, if I reopen the file every tile are now black. Futhermore you can actually unpack the black tiles and they gonna write fine on disk but still gonna appear and render black.

645 KiB

73 KiB

632 KiB

19 KiB

137 KiB

Germano Cavalcante commented

2023-05-08 14:54:01 +02:00

(...)

Simple bake of the diffuse onto the godzilluv that have a UDIM layout

After baking the image appears with all the data in the image viewer

I then pack it

Save the blender file (not a save as)

Reopen it

All the tiles are now black
(...)

These new steps seem to evince what I said before: "For images you need to explicitly save them". This needs to be done before saving Blender or Packing Resources.

This doesn't seem to have real relation to UDIM.

Be sure to save images before Packing or Saving Blender.

> (...) > - Simple bake of the diffuse onto the godzilluv that have a UDIM layout > - After baking the image appears with all the data in the image viewer > - I then pack it > - Save the blender file (not a save as) > - Reopen it > - All the tiles are now black > (...) These new steps seem to evince what I said before: "For images you need to explicitly save them". This needs to be done before saving Blender or Packing Resources. This doesn't seem to have real relation to UDIM. Be sure to save images before Packing or Saving Blender.

Germano Cavalcante added

Status

Needs Information from User

and removed

Status

Needs Triage

labels 2023-05-08 14:54:09 +02:00

xavier.pothron commented

2023-05-08 15:00:00 +02:00

If you have a texture file without UDIM/Tiles you do not need to save it locally before packing it, you just pack it and save and it works. With UDIM it does not like you can see in the images above.

Germano Cavalcante commented

2023-05-08 15:08:31 +02:00

If you have a texture file without UDIM/Tiles you do not need to save it locally before packing it

That's not really true. Try these steps for example:

Open Blender (Default Cube scene)
Go to "Texture Space" workspace
In the 3D View Sidebar, go to Tool > Texture Slots and add a "Base Color" texture
In the Image Editor, salve the "Material Base Color" image in any directory
In the 3D View, draw anything to edit the texture (see the texture changes)
Pack Resources
Save blender file
Close and Open or Click in File > Revert

The image returns to the last saved state.

> If you have a texture file without UDIM/Tiles you do not need to save it locally before packing it That's not really true. Try these steps for example: - Open Blender (Default Cube scene) - Go to "Texture Space" workspace - In the 3D View Sidebar, go to `Tool` > `Texture Slots` and add a "Base Color" texture - In the Image Editor, salve the "Material Base Color" image in any directory - In the 3D View, draw anything to edit the texture (see the texture changes) - Pack Resources - Save blender file - Close and Open or Click in `File` > `Revert` The image returns to the last saved state.

xavier.pothron commented

2023-05-08 16:47:13 +02:00

If I do the exact same steps above (bake, pack, save texture, save file, close, reopen) but on a single tile UV layout it does pack correctly without saving it locally, see images attached.

And regarding your step if I do this :

Open Blender (Default Cube scene)
Go to "Texture Space" workspace
Create a new image
Assign it to the diffuse in the cube material
Paint on the image
Pack Resources
Save image
Save blender file
Close and Open or Click in File > Revert

The texture is there and packed with the latest changes, which is not the case if the image is UDIM/Tiled.

If I do the exact same steps above (bake, pack, save texture, save file, close, reopen) but on a single tile UV layout it does pack correctly without saving it locally, see images attached. And regarding your step if I do this : - Open Blender (Default Cube scene) - Go to "Texture Space" workspace - Create a new image - Assign it to the diffuse in the cube material - Paint on the image - Pack Resources - Save image - Save blender file - Close and Open or Click in File > Revert The texture is there and packed with the latest changes, which is not the case if the image is UDIM/Tiled.

184 KiB

195 KiB

185 KiB

188 KiB

Germano Cavalcante commented

2023-07-31 20:49:07 +02:00

The texture is there and packed with the latest changes, which is not the case if the image is UDIM/Tiled.

I know exactly the steps from the last comment, and it doesn't have the behavior you described.
In fact, a message even appears saying that the last changes will be lost:

Therefore, in my POV, UDIM Packing and Image Packing are matching in behavior.

This report is already a little confusing. It doesn't have a .blend file or clear steps on how to replicate the problem.
Maybe it's better to make a new one.

A guideline for making a good bug report can be found at https://wiki.blender.org/wiki/Process/Bug_Reports

> The texture is there and packed with the latest changes, which is not the case if the image is UDIM/Tiled. I know exactly the steps from the last comment, and it doesn't have the behavior you described. In fact, a message even appears saying that the last changes will be lost: ![image](/attachments/eb18d85c-04a3-4f00-8925-b34099f5e275) Therefore, in my POV, UDIM Packing and Image Packing are matching in behavior. This report is already a little confusing. It doesn't have a .blend file or clear steps on how to replicate the problem. Maybe it's better to make a new one. A guideline for making a good bug report can be found at https://wiki.blender.org/wiki/Process/Bug_Reports

image.png

38 KiB

Thomas Dinges commented

2023-08-11 12:20:04 +02:00

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.

Thanks again for the report. If the problem persists please open a new report with the required information.

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed. Thanks again for the report. If the problem persists please open a new report with the required information.

Thomas Dinges closed this issue

2023-08-11 12:20:06 +02:00

Blender Bot added

Status

Archived

and removed

Status

Needs Information from User

labels 2023-08-11 12:20:08 +02:00

Sign in to join this conversation.