SHOWSTOPPER: Geometry nodes tree can't be recreated anymore, in any scenes! #90910

New Issue

Christoph Werner · 2021-08-25T10:44:08+02:00

Christoph Werner commented

2021-08-25 10:44:08 +02:00

System Information
version: 2.93.3, branch: master, commit date: 2021-08-17 18:30, hash: 8b80d19f36, type: release
build date: 2021-08-17, 23:47:11
platform: Windows
renderer: 'NVIDIA GeForce RTX 3090/PCIe/SSE2'
vendor: 'NVIDIA Corporation'
version: '4.5.0 NVIDIA 471.68'

Short description of error
Please open my example scene first.
I was able to create the geometry nodes setup named "working" just one time.

I'm not able to recreate the same setup anymore, even in completely empty scenes or within the origin scene as a new setup.
For comparism the second cube in my scene has a recreated geometry setup named "not-working". The "not-working" setup has identical nodes, but doesn't work.

The bug appears also on other blender installations (2.93.3) on other PCs.
This seem to be a heavy bug.

Exact steps for others to reproduce the error
Try to recreate my setup in a new geometry nodes tree. The result behaves completely different/wrong.

What is wrong here?

Example scene
cw-object-coordinates-bug-001.blend

Thank you
Chris

**System Information** version: 2.93.3, branch: master, commit date: 2021-08-17 18:30, hash: 8b80d19f3641, type: release build date: 2021-08-17, 23:47:11 platform: Windows renderer: 'NVIDIA GeForce RTX 3090/PCIe/SSE2' vendor: 'NVIDIA Corporation' version: '4.5.0 NVIDIA 471.68' **Short description of error** Please open my example scene first. I was able to create the geometry nodes setup named "working" just one time. I'm not able to recreate the same setup anymore, even in completely empty scenes or within the origin scene as a new setup. For comparism the second cube in my scene has a recreated geometry setup named "not-working". The "not-working" setup has identical nodes, but doesn't work. The bug appears also on other blender installations (2.93.3) on other PCs. This seem to be a heavy bug. **Exact steps for others to reproduce the error** Try to recreate my setup in a new geometry nodes tree. The result behaves completely different/wrong. What is wrong here? **Example scene** [cw-object-coordinates-bug-001.blend](https://archive.blender.org/developer/F10323319/cw-object-coordinates-bug-001.blend) Thank you Chris ![cw-gn-bug-001.png](https://archive.blender.org/developer/F10323342/cw-gn-bug-001.png)

Christoph Werner commented

2021-08-25 10:44:08 +02:00

Added subscriber: @ChristophWerner

Pratik Borhade commented

2021-08-25 10:59:19 +02:00

Added subscriber: @PratikPB2123

Dalai Felinto commented

2021-08-25 11:19:20 +02:00

Added subscriber: @dfelinto

Dalai Felinto commented

2021-08-25 11:19:20 +02:00

Changed status from 'Needs Triage' to: 'Archived'

Dalai Felinto closed this issue

2021-08-25 11:19:20 +02:00

Dalai Felinto commented

2021-08-25 11:19:20 +02:00

In the "not-working" the second node is a Vector Multiply, while in the "working" it is a "Vector Add". So I'm closing this since this is not a bug.

That said, your report helped me to identify another issue (#90914), thanks for that.

In the "not-working" the second node is a Vector Multiply, while in the "working" it is a "Vector Add". So I'm closing this since this is not a bug. That said, your report helped me to identify another issue (#90914), thanks for that.

Philipp Oeser commented

2021-08-25 11:28:23 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2021-08-25 11:28:23 +02:00

Well, multiply by (0,0,0) is not such a good idea in this context:

Change it back to Add and you should be good to go.
Does not seem to be a bug here, will close.

Well, multiply by (0,0,0) is not such a good idea in this context: ![image.png](https://archive.blender.org/developer/F10323567/image.png) Change it back to `Add` and you should be good to go. Does not seem to be a bug here, will close.

Christoph Werner commented

2021-08-25 11:34:25 +02:00

Thank you guys.

Yes it was my fault to not to use Multiply, but I've seen it doesn't work as expected nevertheless.
Reason: The second object is not subdivided.

Please try to scale the texture of the second "not-working" model. It doesn't work.

Seem the geometry nodes distribution node need a highly subdivided quad model to work? Streched faces results in stretched distribution. So the object texture coordinates seem to be ignored?

@dfelinto You're welcome.

Thank you guys. Yes it was my fault to not to use Multiply, but I've seen it doesn't work as expected nevertheless. Reason: The second object is not subdivided. Please try to scale the texture of the second "not-working" model. It doesn't work. Seem the geometry nodes distribution node need a highly subdivided quad model to work? Streched faces results in stretched distribution. So the object texture coordinates seem to be ignored? @dfelinto You're welcome.

Christoph Werner commented

2021-08-25 11:42:28 +02:00

Here's a version, where the second "not-working" object isn't working. Reason: No subdivisions.
But subdividing objects is not an option.

Is there a way to get object world coordinates in geometry nodes? (2.93.3 LTS)

cw-object-coordinates-bug-002.blend

Here's a version, where the second "not-working" object isn't working. Reason: No subdivisions. But subdividing objects is not an option. Is there a way to get object world coordinates in geometry nodes? (2.93.3 LTS) [cw-object-coordinates-bug-002.blend](https://archive.blender.org/developer/F10323639/cw-object-coordinates-bug-002.blend)

Lloyd commented

2021-08-25 11:52:15 +02:00

Added subscriber: @LloydAlmeida

Lloyd commented

2021-08-25 11:52:15 +02:00

Not a bug, User error.

1 Objects UVs are different
2 Attributes are different.

Not a bug, User error. 1 Objects UVs are different 2 Attributes are different. ![cw-gn-bug-001.png](https://archive.blender.org/developer/F10323662/cw-gn-bug-001.png)

Dalai Felinto commented

2021-08-25 11:53:58 +02:00

In your original file one object had the subdivision modifier while the other didn't have.

For general support see https://www.blender.org/community .

In your original file one object had the subdivision modifier while the other didn't have. For general support see https://www.blender.org/community .

Christoph Werner commented

2021-08-25 12:00:43 +02:00

In #90910#1211206, @LloydAlmeida wrote:
Not a bug, User error.

1 Objects UVs are different
2 Attributes are different.

Yes, I know. I was in hurry... sorry for this.
Here's an updated version. cw-object-coordinates-bug-003.blend

@dfelinto Ok. I take a look into it. Thank you.

> In #90910#1211206, @LloydAlmeida wrote: > Not a bug, User error. > > 1 Objects UVs are different > 2 Attributes are different. > ![cw-gn-bug-001.png](https://archive.blender.org/developer/F10323662/cw-gn-bug-001.png) Yes, I know. I was in hurry... sorry for this. Here's an updated version. [cw-object-coordinates-bug-003.blend](https://archive.blender.org/developer/F10323747/cw-object-coordinates-bug-003.blend) @dfelinto Ok. I take a look into it. Thank you.

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SHOWSTOPPER: Geometry nodes tree can't be recreated anymore, in any scenes! #90910