blender/blender

No socket description will be shown in the "VIEW_3D" "UI" Panel #113517

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opened 2023-10-10 20:45:57 +02:00 by Andrea Donati · 9 comments

Andrea Donati commented

2023-10-10 20:45:57 +02:00

System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 4090/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 528.49

Blender Version
Broken: version: 4.0.0 Beta, branch: blender-v4.0-release, commit date: 2023-10-04 23:50, hash: 2f71d9f80795
Worked: (newest version of Blender that worked as expected)

Short description of error
No description when touching the property with the mouse in a "VIEW_3D" "UI" Panel

Exact steps for others to reproduce the error

import bpy

from bpy.types import Panel

class MYADDON_PT_MyPanel(Panel):

    bl_label = "My Panel"
    bl_idname = "MYADDON_PT_MyPanel"
    bl_space_type = 'VIEW_3D'
    bl_region_type = 'UI'
    bl_category = "My Addon"

    def draw(self, context):
        
        ob = context.object
        if not ob:
            return
        mat = ob.active_material
        if not mat:
            return
        
        if not mat.use_nodes:
            return
        
        node_tree = mat.node_tree
        
        nodes = node_tree.nodes

        my_node = nodes.get("My Node")
        if not my_node:
            return


        layout = self.layout
        for n_input in my_node.inputs:
            layout.prop(n_input, 'default_value', text=n_input.name)
            
            
def register():
    bpy.utils.register_class(MYADDON_PT_MyPanel)
    
def unregister():
    bpy.utils.unregister_class(MYADDON_PT_MyPanel)
    

if __name__ == "__main__":
    register()

**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 4090/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 528.49 **Blender Version** Broken: version: 4.0.0 Beta, branch: blender-v4.0-release, commit date: 2023-10-04 23:50, hash: `2f71d9f80795` Worked: (newest version of Blender that worked as expected) **Short description of error** No description when touching the property with the mouse in a "VIEW_3D" "UI" Panel **Exact steps for others to reproduce the error** ```Py import bpy from bpy.types import Panel class MYADDON_PT_MyPanel(Panel): bl_label = "My Panel" bl_idname = "MYADDON_PT_MyPanel" bl_space_type = 'VIEW_3D' bl_region_type = 'UI' bl_category = "My Addon" def draw(self, context): ob = context.object if not ob: return mat = ob.active_material if not mat: return if not mat.use_nodes: return node_tree = mat.node_tree nodes = node_tree.nodes my_node = nodes.get("My Node") if not my_node: return layout = self.layout for n_input in my_node.inputs: layout.prop(n_input, 'default_value', text=n_input.name) def register(): bpy.utils.register_class(MYADDON_PT_MyPanel) def unregister(): bpy.utils.unregister_class(MYADDON_PT_MyPanel) if __name__ == "__main__": register() ```

Andrea Donati added the

labels 2023-10-10 20:45:57 +02:00

Iliya Katushenock added the

Nodes & Physics

labels 2023-10-10 20:47:12 +02:00

Richard Antalik commented

2023-10-10 23:38:39 +02:00

Member

Is the provided script all I need to reproduce the issue? I get

Traceback (most recent call last):
  File "/home/me/Desktop/bugs/113517.blend/Text", line 22, in draw
AttributeError: 'ShaderNodeTree' object has no attribute 'use_nodes'

Is the provided script all I need to reproduce the issue? I get ``` Traceback (most recent call last): File "/home/me/Desktop/bugs/113517.blend/Text", line 22, in draw AttributeError: 'ShaderNodeTree' object has no attribute 'use_nodes' ```

Richard Antalik added

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labels 2023-10-10 23:38:49 +02:00

Andrea Donati commented

2023-10-11 00:34:12 +02:00

Author

Lo script fornito è tutto ciò di cui ho bisogno per riprodurre il problema? Ottengo ``` Traceback (most latest call last): File "/home/me/Desktop/bugs/113517.blend/Text", riga 22, in draw AttributeError: L'oggetto 'ShaderNodeTree' non ha attributo 'use_nodes' `` `

Yes You are right, Apologies for the script, I provided a more complete version. Make sure to rename the node to "My Node" and that the node is of type Group and that a description is inserted in the group socket (Now items_tree).

> Lo script fornito è tutto ciò di cui ho bisogno per riprodurre il problema? Ottengo ``` Traceback (most latest call last): File "/home/me/Desktop/bugs/113517.blend/Text", riga 22, in draw AttributeError: L'oggetto 'ShaderNodeTree' non ha attributo 'use_nodes' `` ` Yes You are right, Apologies for the script, I provided a more complete version. Make sure to rename the node to "My Node" and that the node is of type Group and that a description is inserted in the group socket (Now items_tree).

Richard Antalik commented

2023-10-11 21:33:28 +02:00

Member

I can't reproduce here - it shows the description to me. Or is the issue something else?

I can't reproduce here - it shows the description to me. Or is the issue something else?

Untitled.png

27 KiB

Andrea Donati commented

2023-10-11 21:51:21 +02:00

Author

No Description here, I just get "Input value used for unconnected socket"

I tried both on Group nodes and on Blender nodes where the description is present.

I tried both on Group nodes and on Blender nodes where the description is present.

To be safe I also downloaded and tried Today's Build.

Unless there is something to set in the preferences, or in the code, I can't show the description in the panel like you did.

Something doesn't seem to be going as it should

No Description here, I just get "Input value used for unconnected socket" I tried both on Group nodes and on Blender nodes where the description is present. I tried both on Group nodes and on Blender nodes where the description is present. To be safe I also downloaded and tried Today's Build. Unless there is something to set in the preferences, or in the code, I can't show the description in the panel like you did. Something doesn't seem to be going as it should

Richard Antalik commented

2023-10-11 22:37:54 +02:00

Member

Ah sorry, I saw the words, but did not read them. "Input value used for unconnected socket" is what I see as well. But this is what you get even if you hover over node group. You can add description to the property, but I think this is drawn as label then, because it does not show it in Group tab in side panel still. It could be hardcoded behavior in C++, but I would assume it would be possible to implement. You would still have to either set description for the property or you would have to fetch it from connected node.
But this isn't really a bug, so will close this report.

Ah sorry, I saw the words, but did not read them. "Input value used for unconnected socket" is what I see as well. But this is what you get even if you hover over node group. You can add description to the property, but I think this is drawn as label then, because it does not show it in Group tab in side panel still. It could be hardcoded behavior in C++, but I would assume it would be possible to implement. You would still have to either set description for the property or you would have to fetch it from connected node. But this isn't really a bug, so will close this report.

Richard Antalik closed this issue

2023-10-11 22:37:56 +02:00

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labels 2023-10-11 22:37:58 +02:00

Andrea Donati commented

2023-10-11 22:44:32 +02:00

Author

Maybe I didn't explain myself well 😅

The property I'm talking about is that of the socket node_tree.items_tree['my_item'].description, this is shown on the node but not in the interface I gave the example with python.

I'll give an example:

Maybe I didn't explain myself well 😅 The property I'm talking about is that of the socket `node_tree.items_tree['my_item'].description`, this is shown on the node but not in the interface I gave the example with python. I'll give an example: ![image](/attachments/3dafee85-8bf4-4340-8468-435798e783a2)

156 KiB

Richard Antalik commented

2023-10-12 01:00:48 +02:00

Member

Will check how this is exactly drawn. As I said, it will be probably hardcoded

Will check how this is exactly drawn. As I said, it will be probably hardcoded

Richard Antalik reopened this issue

2023-10-12 01:00:51 +02:00

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Philipp Oeser commented

2023-10-23 14:54:26 +02:00

Member

Will confirm for now

Will confirm for now

Philipp Oeser added

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labels 2023-10-23 14:54:45 +02:00

Hans Goudey commented

2024-02-01 19:14:21 +01:00

Member

This is just how the node system's RNA works currently. The property isn't special for every socket in every node, it's just the NodeSocketColor default_value property. The technical changes necessary to make this work differently aren't clear, and it's not a priority currently, so I'll close this report.

This is just how the node system's RNA works currently. The property isn't special for every socket in every node, it's just the `NodeSocketColor` `default_value` property. The technical changes necessary to make this work differently aren't clear, and it's not a priority currently, so I'll close this report.

Hans Goudey closed this issue

2024-02-01 19:14:24 +01:00

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labels 2024-02-01 19:14:27 +01:00

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