[Bf-committers] PyNodes branch merge

Brecht Van Lommel brechtvanlommel at pandora.be
Tue Mar 19 12:20:02 CET 2013


Maybe add a page in the release notes:
http://wiki.blender.org/index.php/Dev:Ref/Release_Notes/2.67

On Tue, Mar 19, 2013 at 10:50 AM, Lukas Tönne <lukas.toenne at gmail.com> wrote:
> Made a temporary wiki page to collect API changes. Is there a
> preferred place to put this other than my personal pages?
>
> http://wiki.blender.org/index.php/User:Phonybone/Python_Nodes/API_changes
>
> On Mon, Mar 18, 2013 at 5:35 PM, Lukas Tönne <lukas.toenne at gmail.com> wrote:
>> It's finally happening, "PyNodes" branch (aka "custom nodes") ready
>> for merge into trunk.
>>
>> PyNodes opens up the node system in Blender to scripters and adds a
>> number of UI-level improvements.
>>
>> === Dynamic node type registration ===
>> Node types can now be added at runtime, using the RNA registration
>> mechanism from python. This enables addons such as render engines to
>> create a complete user interface with nodes.
>>
>> Examples of how such nodes can be defined can be found in my personal
>> wiki docs atm [1] and as a script template in
>> release/scripts/templates_py/custom_nodes.py [2].
>>
>> === Node group improvements ===
>> Each node editor now has a tree history of edited node groups, which
>> allows opening and editing nested node groups. The node editor also
>> supports pinning now, so that different spaces can be used to edit
>> different node groups simultaneously. For more ramblings and rationale
>> see (really old) blog post on code.blender.org [3].
>>
>> The interface of node groups has been overhauled. Sockets of a node
>> group are no longer displayed in columns on either side, but instead
>> special input/output nodes are used to mirror group sockets inside a
>> node tree. This solves the problem of long node lines in groups and
>> allows more adaptable node layout. Internal sockets can be exposed
>> from a group by either connecting to the extension sockets in
>> input/output nodes (shown as empty circle) or by adding sockets from
>> the node property bar in the "Interface" panel. Further details such
>> as the socket name can also be changed there.
>>
>>
>> For the next release (2.67) i will update the official wiki pages as
>> well. The wiki node docs are totally outdated anyway (still on 2.49
>> level in many parts). I'd like to make a general section about common
>> node editor tools. Docs about the python API and registration should
>> probably go to the bpy reference docs as examples [4]
>>
>> Please report any possible bugs you encounter to the bug tracker [5].
>>
>> Regards,
>> Lukas Tönne
>>
>>
>> [1] http://wiki.blender.org/index.php/User:Phonybone/Python_Nodes
>> [2] http://projects.blender.org/scm/viewvc.php/trunk/blender/release/scripts/templates_py/custom_nodes.py?view=markup&root=bf-blender
>> [3] http://code.blender.org/index.php/2012/01/improving-node-group-interface-editing/
>> [4] http://www.blender.org/documentation/blender_python_api_2_66a_release/bpy.types.NodeTree.html
>> [5] http://projects.blender.org/tracker/?atid=498&group_id=9&func=browse
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