UVs are destroyed after applying the geometry nodes modifier when object info node is used to pass the geometry. #89570

New Issue

kursad k · 2021-07-01T01:40:31+02:00

kursad k commented

2021-07-01 01:40:31 +02:00

System Information
Operating system: Windows 10
Graphics card: RTX 2070

Blender Version
Broken: blender-3.0.0-alpha+master.2d35eed34d01-windows.amd64-release

Short description of error

It seems like the uvs are destroyed when the modifier is applied. This makes it very hard to use this to create actual geometries. Here I have a super simple use case where no instancing or fancy processing is done. The geometry is brought into the host geometry with the object info node.

QU22PPOylB.mp4

Exact steps for others to reproduce the error
See the attached video and the .blend file

Open the blend file

Select the torus

Apply the modifier

uvs_30062021_1834_53.zip

**System Information** Operating system: Windows 10 Graphics card: RTX 2070 **Blender Version** Broken: blender-3.0.0-alpha+master.2d35eed34d01-windows.amd64-release **Short description of error** It seems like the uvs are destroyed when the modifier is applied. This makes it very hard to use this to create actual geometries. Here I have a super simple use case where no instancing or fancy processing is done. The geometry is brought into the host geometry with the object info node. [QU22PPOylB.mp4](https://archive.blender.org/developer/F10207063/QU22PPOylB.mp4) **Exact steps for others to reproduce the error** See the attached video and the .blend file Open the blend file Select the torus Apply the modifier [uvs_30062021_1834_53.zip](https://archive.blender.org/developer/F10207065/uvs_30062021_1834_53.zip)

kursad k commented

2021-07-01 01:40:31 +02:00

Added subscriber: @kursadk

Pratik Borhade commented

2021-07-01 07:47:41 +02:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2021-07-01 07:47:41 +02:00

Can replicate with attached file but unable to reproduce from scratch.(Edit: I changed the texture in the attached file and still unable to replicate the issue)

texture were used to destroy completely with 2.93LTS (Commit date: 2021-06-02) but with recent build from master I fear to mark this as confirmed.

(Will leave the report for others to triage)

Can replicate with attached file but unable to reproduce from scratch.(Edit: I changed the texture in the attached file and still unable to replicate the issue) texture were used to destroy completely with 2.93LTS (Commit date: `2021-06-02`) but with recent build from master I fear to mark this as confirmed. (Will leave the report for others to triage)

Philipp Oeser commented

2021-07-01 14:24:01 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2021-07-01 14:24:01 +02:00

Think this is the same underlying issue as in #85962 (Many Nodes (Join geometry, Boolean, Object Info?) and realizing instances remove UVs (output float2, not MLoopUV).), will merge these reports.

Philipp Oeser commented

2021-07-01 14:24:11 +02:00

Closed as duplicate of #85962

Philipp Oeser closed this issue

2021-07-01 14:24:11 +02:00

kursad k commented

2021-07-01 17:28:01 +02:00

@PratikPB2123

You say you cant replicate this when you create the scene from scratch. Which version of Blender did you try with? I can replicate this issue with many different scenes from simple to complex. This was the simplest test scene.

@PratikPB2123 You say you cant replicate this when you create the scene from scratch. Which version of Blender did you try with? I can replicate this issue with many different scenes from simple to complex. This was the simplest test scene.

slowburn commented

2021-07-01 18:07:24 +02:00

Added subscriber: @slowburn

slowburn commented

2021-07-01 18:07:24 +02:00

I was able to reproduce this bug from scratch on 3.0 alpha.

Pratik Borhade commented

2021-07-02 08:23:36 +02:00

Which version of Blender did you try with?

3.0.0 (016a2707f5). Can even not replicate after changing the texture of Torus (base color -> brick texture).
What I did is:

Change base color to Brick Texture In material properties.
Then apply geometry nodes modifier.

(Issue may be with every texture and reproducible with even a simplest file, maybe I am doing in some different way than you, that could be the reason)

>Which version of Blender did you try with? 3.0.0 (`016a2707f5`). Can even not replicate after changing the texture of Torus (base color -> brick texture). What I did is: - Change base color to `Brick Texture` In material properties. - Then apply geometry nodes modifier. (Issue may be with every texture and reproducible with even a simplest file, maybe I am doing in some different way than you, that could be the reason)

kursad k commented

2021-07-02 17:46:29 +02:00

Well the brick texture probably not using the UVs, you need to use an image texture.

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UVs are destroyed after applying the geometry nodes modifier when object info node is used to pass the geometry. #89570