.new() does not work when trying to create new sockets on a group input or group output node #50417

New Issue

Jacob Morris · 2017-01-11T23:46:54+01:00

Jacob Morris commented

2017-01-11 23:46:54 +01:00

Broken: 2.75-2.78
Worked: I ran code like this before and it worked, but I cannot remember a version number

Short description of error
Adding a new input socket to a group output node and adding a new output socket to a group input node do not work. If you run the code below, the lines that try and add sockets have no affect. I found a workaround, which is linking to the NodeSocketVirtual multiple times.

Exact steps for others to reproduce the error

import bpy

mat = bpy.data.materials.new("test")
mat.use_nodes = True    
ng = bpy.data.node_groups.new(name="issue", type="ShaderNodeTree")
nodes = ng.nodes

n = mat.node_tree.nodes.new("ShaderNodeGroup")
n.node_tree = ng

group_in = nodes.new("NodeGroupInput")
group_in.location = (-200, 0)
group_out = nodes.new("NodeGroupOutput")
group_out.location = (200, 0)
diff = nodes.new("ShaderNodeBsdfDiffuse")

group_in.outputs.new("NodeSocketColor", "color")  # line has no affect
group_out.inputs.new("NodeSocketShader", "shader")  # line has  no affect


- ng.links.new(group_in.outputs[0], diff.inputs[0])
- ng.links.new(group_in.outputs[1], diff.inputs[1])

Broken: 2.75-2.78 Worked: I ran code like this before and it worked, but I cannot remember a version number **Short description of error** Adding a new input socket to a group output node and adding a new output socket to a group input node do not work. If you run the code below, the lines that try and add sockets have no affect. I found a workaround, which is linking to the NodeSocketVirtual multiple times. **Exact steps for others to reproduce the error** ``` import bpy mat = bpy.data.materials.new("test") mat.use_nodes = True ng = bpy.data.node_groups.new(name="issue", type="ShaderNodeTree") nodes = ng.nodes n = mat.node_tree.nodes.new("ShaderNodeGroup") n.node_tree = ng group_in = nodes.new("NodeGroupInput") group_in.location = (-200, 0) group_out = nodes.new("NodeGroupOutput") group_out.location = (200, 0) diff = nodes.new("ShaderNodeBsdfDiffuse") group_in.outputs.new("NodeSocketColor", "color") # line has no affect group_out.inputs.new("NodeSocketShader", "shader") # line has no affect - ng.links.new(group_in.outputs[0], diff.inputs[0]) - ng.links.new(group_in.outputs[1], diff.inputs[1]) ```

Jacob Morris commented

2017-01-11 23:46:54 +01:00

Changed status to: 'Open'

Jacob Morris commented

2017-01-11 23:46:54 +01:00

Added subscriber: @BlendingJake

Jacob Morris changed title from ~~.new does not work when trying to create new sockets on a group input or group output node~~ to .new() does not work when trying to create new sockets on a group input or group output node

2017-01-12 15:27:29 +01:00

Joey Ferwerda commented

2017-01-17 13:28:20 +01:00

Added subscriber: @TheOnlyJoey

Joey Ferwerda commented

2017-01-17 13:28:20 +01:00

I can not reproduce this working on 2.77 which does not match with the report, which version did this work on, can you retest please?

Have you tested with the 'a' releases?

I can not reproduce this working on 2.77 which does not match with the report, which version did this work on, can you retest please? Have you tested with the 'a' releases?

Jacob Morris commented

2017-01-17 20:10:42 +01:00

In #50417#412525, @TheOnlyJoey wrote:
I can not reproduce this working on 2.77 which does not match with the report, which version did this work on, can you retest please?

Have you tested with the 'a' releases?

I just tested 2.75-2.78a and none of them work. I have in the past run code that used .new() to create sockets on group input and group outputs nodes, but I cannot remember a version number.

> In #50417#412525, @TheOnlyJoey wrote: > I can not reproduce this working on 2.77 which does not match with the report, which version did this work on, can you retest please? > > Have you tested with the 'a' releases? I just tested 2.75-2.78a and none of them work. I have in the past run code that used .new() to create sockets on group input and group outputs nodes, but I cannot remember a version number.

Ray molenkamp commented

2017-01-17 20:13:07 +01:00

Added subscriber: @LazyDodo

Ray molenkamp commented

2017-01-17 20:13:07 +01:00

ng.outputs.new("NodeSocketColor", "color")  
ng.inputs.new("NodeSocketShader", "shader")

will probably work.

``` ng.outputs.new("NodeSocketColor", "color") ng.inputs.new("NodeSocketShader", "shader") ``` will probably work.

👍 1

Jacob Morris commented

2017-01-17 20:26:05 +01:00

In #50417#412596, @LazyDodo wrote:
ng.outputs.new("NodeSocketColor", "color")  
ng.inputs.new("NodeSocketShader", "shader")
will probably work.

That does seem to work! However, why would group_input.outputs.new() and group_output.inputs.new() not work?

> In #50417#412596, @LazyDodo wrote: > ``` > ng.outputs.new("NodeSocketColor", "color") > ng.inputs.new("NodeSocketShader", "shader") > ``` > will probably work. That does seem to work! However, why would group_input.outputs.new() and group_output.inputs.new() not work?

Joey Ferwerda commented

2017-01-19 17:00:54 +01:00

Changed status from 'Open' to: 'Resolved'

Joey Ferwerda closed this issue

2017-01-19 17:00:54 +01:00

Joey Ferwerda self-assigned this 2017-01-19 17:00:54 +01:00

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.new() does not work when trying to create new sockets on a group input or group output node #50417