This PR changes the temporary viewers created in node groups by Connect to Output in two ways:
- Rename it, as it is currently called "tmp_viewer", which stands out
as strange and code-like. It is renamed to "(Viewer)", which can be
translated.
- Use the actual connected socket type.
Currently the viewer uses hardcoded socket types (Geometry for Geometry
Nodes, Shader for shader nodes). While in GN we can only connect
geometry to the output, in shader nodes other types can be inspected.
This change allows the tmp_viewer to use the type of the actual socket
being inspected, to have a better idea of what it contains from
outside the group.
It can be especially useful if a group is used in multiple materials
and different sockets are being previewed in each one.
It also does some cleanup, details in the commits.
Pull Request: https://projects.blender.org/blender/blender/pulls/122520
15ec49ff28