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Geometry Nodes: Propagate geometry component limitation on group declaration #109394

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Iliya Katushenock wants to merge 3 commits from mod_moder/blender:group_declaration_geo_sup into main
pull from: mod_moder/blender:group_declaration_geo_sup
merge into: blender:main

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Iliya Katushenock commented 2023-06-27 02:50:11 +02:00
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Function for node groups. When user want to put geometry
to group socket, information about type of components to
support can be added to tooltip by author. This not too
automatic, error-prone and the data may no longer be
up-to-date when the nodes capabilities are expanded.

This PR added automatic mechanism to deduce list of supported
types of geometry component for socket of node group.

image

Right now list of supported geometry component is not
propagated as field interfacing in a node tree. If a Curve
only socket connected to group input node via some general
node without limitation, this group socket will be marked
as support everything. This too complex task and not solved
in this PR.

Supported components is any component, what can be taken by
at least one socket. So, even if only one socket from all
connected can take Point Cloud, it going be displayed as
supported in node group interface tooltip.

Function for node groups. When user want to put geometry to group socket, information about type of components to support can be added to tooltip by author. This not too automatic, error-prone and the data may no longer be up-to-date when the nodes capabilities are expanded. This PR added automatic mechanism to deduce list of supported types of geometry component for socket of node group. ![image](/attachments/71f3c566-9bc9-4d8d-a403-c15d1d0559a1) Right now list of supported geometry component is not propagated as field interfacing in a node tree. If a Curve only socket connected to group input node via some general node without limitation, this group socket will be marked as support everything. This too complex task and not solved in this PR. Supported components is any component, what can be taken by at least one socket. So, even if only one socket from all connected can take Point Cloud, it going be displayed as supported in node group interface tooltip.
image.png
17 KiB
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Iliya Katushenock added the
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Geometry Nodes
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Iliya Katushenock added 1 commit 2023-06-27 02:50:19 +02:00
Iliya Katushenock added this to the Nodes & Physics project 2023-06-27 02:50:41 +02:00
Iliya Katushenock added 2 commits 2023-06-28 21:48:10 +02:00
Iliya Katushenock changed title from WIP: Geometry Nodes: Propagate geometry component limitation on group declaration to Geometry Nodes: Propagate geometry component limitation on group declaration 2023-06-28 21:48:16 +02:00
Iliya Katushenock requested review from Jacques Lucke 2023-07-12 15:35:54 +02:00
Iliya Katushenock requested review from Hans Goudey 2023-07-12 15:35:54 +02:00
Hans Goudey reviewed 2023-07-12 16:14:27 +02:00
Hans Goudey left a comment
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I think this generally makes sense, but it's probably not complete without propagating the supported types forwards and backwards, and without considering field input nodes. I'm not sure how much it makes sense to add this if it's not "complete," it might be misleading.

I think this generally makes sense, but it's probably not complete without propagating the supported types forwards and backwards, and without considering field input nodes. I'm not sure how much it makes sense to add this if it's not "complete," it might be misleading.
source/blender/nodes/intern/node_common.cc
@ -134,0 +140,4 @@
const bNodeSocket &output = input_node->output_by_identifier(socket_name);
for (const bNodeSocket *input : output.logically_linked_sockets()) {
const bNode &owner_node = input->owner_node();
bke::nodeDeclarationEnsureOnOutdatedNode(const_cast<bNodeTree *>(&tree),
Hans Goudey commented 2023-07-12 16:13:09 +02:00
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I don't think it's okay to call this on a const node. Is this actually necessary? The declarations would ideally be up to date already at this point.

I don't think it's okay to call this on a const node. Is this actually necessary? The declarations would ideally be up to date already at this point.
Hans Goudey requested changes 2023-10-31 11:02:09 +01:00
Hans Goudey left a comment
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Just requesting changes based on my previous comment.

Just requesting changes based on my previous comment.
This pull request has changes conflicting with the target branch.
  • source/blender/nodes/NOD_socket_declarations_geometry.hh
  • source/blender/nodes/intern/node_common.cc
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