Dynamic socket declaration for type change #120486

New Issue

Iliya Katushenock · 2024-04-10T19:25:22+02:00

Iliya Katushenock commented

2024-04-10 19:25:22 +02:00

This is sub project of more large one which is aimed to delete any manual socket visibility change from the core and do not hide sockets if they are not used.
Instead, the modern socket declaration API should cover deletion of sockets from bmain, creation of them, maintaining of properties and links. See: #104126
This sub project is aimed to use dynamic socket declarations in context if there one certain socket that should be exist always (should not be deleted) but its type can be changed.

So, sockets of Mix node will be changes to Factor, A and B instead of Factor_vector, A_1, A_Float, and so.
This will not cover such changes like B socket of Math node that should not be there for Sin mode.

This requires changes in all node systems such as Shader Nodes and Geometry Nodes.
Compositing Nodes and Texture Nodes will not be affected.

Related changes:

For each node system list of affected nodes should be proposed.
Compatibility changes. Old blender versions should be able to correctly open files from new versions.
This requires changes in versioning of older blender branches to handle some certain nodes to change names of new sockets to old names. Next, declaration system can handle this in correct way.
In case declaration system is not used for some node, this should be fixed.
Naming of sockets will be changed as well. This will be need in case there is type of socket is part of the name.
This is additional change for a lot of old nodes systems due to the fact that previously there was all sockets with different types at the same time. Today there is no reason to have such non-trivial naming.

Current state:

Geometry Nodes:
- Design accepted.
- Related changes in compatibility is done: #113497.
- Changes accepted: #113553.
Shader Nodes:
- Design accepted.
- Related changes in compatibility is done.
- Changes accepted.

This is sub project of more large one which is aimed to delete any manual socket visibility change from the core and do not hide sockets if they are not used. Instead, the modern socket declaration API should cover deletion of sockets from bmain, creation of them, maintaining of properties and links. See: #104126 This sub project is aimed to use dynamic socket declarations in context if there one certain socket that should be exist always (should not be deleted) but its type can be changed. So, sockets of `Mix` node will be changes to `Factor`, `A` and `B` instead of `Factor_vector`, `A_1`, `A_Float`, and so. This will not cover such changes like `B` socket of `Math` node that should not be there for `Sin` mode. This requires changes in all node systems such as `Shader Nodes` and `Geometry Nodes`. `Compositing Nodes` and `Texture Nodes` will not be affected. Related changes: 1. For each node system list of affected nodes should be proposed. 2. Compatibility changes. Old blender versions should be able to correctly open files from new versions. This requires changes in versioning of older blender branches to handle some certain nodes to change names of new sockets to old names. Next, declaration system can handle this in correct way. 3. In case declaration system is not used for some node, this should be fixed. 4. Naming of sockets will be changed as well. This will be need in case there is type of socket is part of the name. This is additional change for a lot of old nodes systems due to the fact that previously there was all sockets with different types at the same time. Today there is no reason to have such non-trivial naming. Current state: 1. Geometry Nodes: - [x] Design accepted. - [x] Related changes in compatibility is done: #113497. - [x] Changes accepted: #113553. 2. Shader Nodes: - [ ] Design accepted. - [ ] Related changes in compatibility is done. - [ ] Changes accepted.

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Dynamic socket declaration for type change #120486