Geometry Nodes: Evaluate node tree for get dependencies #102881

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opened 2022-11-30 18:02:41 +01:00 by Iliya Katushenock · 0 comments

To know if node tree requires something external (like object data or update for animation play) we have to evaluate node tree in general case. But we can not combine evaluation of node tree and dependency graph building together. This is issue of design of dependency graph.
Cases to handle:

  1. Muted node. We still need to handle sockets update for muted node though, see: #109088
  2. Properties of node that is unused for connected node outputs.
  3. Nodes which is connected to something but not in branch of nodes that is connected to output.
    3.1. Node can be connected to just one reroute..
    3.2. Nodes that connected to Viewer node. This should depend on the fact that modifier output or viewer outputs are used.
  4. Node can be connected to output, but result of node can be unused due to switch node or something similar.
  5. Modifier panel inputs should check if socket in any instance of groups are used.
To know if node tree requires something external (like object data or update for animation play) we have to evaluate node tree in general case. But we can not combine evaluation of node tree and dependency graph building together. This is issue of design of dependency graph. Cases to handle: 1. Muted node. We still need to handle sockets update for muted node though, see: https://projects.blender.org/blender/blender/pulls/109088 2. Properties of node that is unused for connected node outputs. 3. Nodes which is connected to something but not in branch of nodes that is connected to output. 3.1. Node can be connected to just one reroute.. 3.2. Nodes that connected to Viewer node. This should depend on the fact that modifier output or viewer outputs are used. 4. Node can be connected to output, but result of node can be unused due to switch node or something similar. 5. Modifier panel inputs should check if socket in any instance of groups are used.
Iliya Katushenock self-assigned this 2022-11-30 18:19:53 +01:00
Iliya Katushenock added
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labels 2023-02-10 01:03:34 +01:00
Iliya Katushenock added this to the Nodes & Physics project 2023-02-10 01:03:43 +01:00
Iliya Katushenock added
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labels 2023-04-17 22:53:37 +02:00
Iliya Katushenock changed title from Geometry Node: Smart relations for used nodes to Geometry Node: Evaluate node tree for get dependencies 2023-04-22 09:57:16 +02:00
Iliya Katushenock changed title from Geometry Node: Evaluate node tree for get dependencies to Geometry Nodes: Evaluate node tree for get dependencies 2023-04-22 09:58:00 +02:00
Iliya Katushenock removed the
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label 2023-08-17 14:12:44 +02:00
Iliya Katushenock removed the
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Nodes & Physics
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Reference: blender/blender#102881
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