Cannot use Shade Smooth on Geometry Node generated geometries. #88252

New Issue

Florian Delarque · 2021-05-13T09:59:08+02:00

Florian Delarque commented

2021-05-13 09:59:08 +02:00

System Information
Operating system: Windows 10 Professionnal 64 bits
Graphics card: NVIDIA GeForce RTX 2060

Blender Version
Broken: 2.93.0 Beta
Worked: No idea

Short description of error
When using geometry node, I cannot use Shade Smooth option as in this screenshot :

I don't know Blender enough to this day to tell if it's normal or not.

Exact steps for others to reproduce the error
Use Geometry node to generate custom geometry.
Left clic + Shade Smooth

Here is the file where I tested it :
geometryNodes_and_shadeSmooth.blend

Thank you again for all of your work. :)

**System Information** Operating system: Windows 10 Professionnal 64 bits Graphics card: NVIDIA GeForce RTX 2060 **Blender Version** Broken: 2.93.0 Beta Worked: No idea **Short description of error** When using geometry node, I cannot use Shade Smooth option as in this screenshot : ![Capture d’écran (10).png](https://archive.blender.org/developer/F10091469/Capture_d_écran__10_.png) I don't know Blender enough to this day to tell if it's normal or not. **Exact steps for others to reproduce the error** Use Geometry node to generate custom geometry. Left clic + Shade Smooth Here is the file where I tested it : [geometryNodes_and_shadeSmooth.blend](https://archive.blender.org/developer/F10091488/geometryNodes_and_shadeSmooth.blend) Thank you again for all of your work. :)

Florian Delarque commented

2021-05-13 09:59:08 +02:00

Added subscriber: @Chokmah

Himanshi Kalra commented

2021-05-13 13:21:56 +02:00

Added subscriber: @Calra

Himanshi Kalra commented

2021-05-13 13:21:56 +02:00

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

Himanshi Kalra commented

2021-05-13 13:21:56 +02:00

I can confirm this issue on 2.93.

I tested it for a simple Group Input -> Group Output setup and it works fine on that.
Using a Point Distribute Node, it looks like the distributed mesh is already shaded smooth.

Needing information from developers regarding if this really is a bug or it is supposed to work this way.

I can confirm this issue on 2.93. I tested it for a simple Group Input -> Group Output setup and it works fine on that. Using a Point Distribute Node, it looks like the distributed mesh is already shaded `smooth`. Needing information from developers regarding if this really is a bug or it is supposed to work this way.

Erindale commented

2021-05-13 15:26:32 +02:00

Added subscriber: @Erindale

Erindale commented

2021-05-13 15:26:32 +02:00

Using an attribute fill node set to Boolean with the attribute shade_smooth let's you assign smooth shading to specific parts.
I assume this is intended behaviour as the tree needs to know to shade smooth every time it recalculates.

Using an attribute fill node set to Boolean with the attribute shade_smooth let's you assign smooth shading to specific parts. I assume this is intended behaviour as the tree needs to know to shade smooth every time it recalculates.

Hans Goudey commented

2021-05-13 16:10:04 +02:00

Added subscriber: @HooglyBoogly

Hans Goudey commented

2021-05-13 16:10:04 +02:00

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

Hans Goudey closed this issue

2021-05-13 16:10:04 +02:00

Hans Goudey commented

2021-05-13 16:10:04 +02:00

Right, it's a bit confusing but this is not a bug. The "Shade Smooth" operator sets the value on the original mesh, but during modifier evaluation you remove the original mesh and replace it with something else, with a different data type in between, so it can't carry over that value.

Regardless, thanks for the report @Chokmah

Right, it's a bit confusing but this is not a bug. The "Shade Smooth" operator sets the value on the original mesh, but during modifier evaluation you remove the original mesh and replace it with something else, with a different data type in between, so it can't carry over that value. Regardless, thanks for the report @Chokmah

Florian Delarque commented

2021-05-13 21:41:55 +02:00

Thanks to all for your informations. @Erindale , I'll try this workaround pretty soon :)

Florian Delarque commented

2021-05-14 00:31:20 +02:00

@Erindale it works fine !

I think we should get a message when trying to use llegacy 'Shade Smooth' to tell the user that it must be taken into acount in Geometry Nodes. Like said before I find it confusing as it is.

Anyway, thanks again for your help :)

@Erindale it works fine ! I think we should get a message when trying to use llegacy 'Shade Smooth' to tell the user that it must be taken into acount in Geometry Nodes. Like said before I find it confusing as it is. Anyway, thanks again for your help :)

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Cannot use Shade Smooth on Geometry Node generated geometries. #88252