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Geometry Nodes: Sample by ID node #118092

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Iliya Katushenock wants to merge 14 commits from mod_moder/blender:sample_by_id into main
pull from: mod_moder/blender:sample_by_id
merge into: blender:main

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Iliya Katushenock commented 2024-02-10 21:56:01 +01:00
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Sample by ID is node to find index of ID in some geometry. It is useful for associative mapping, so index attribute can be used even if geometry was changes and indices are out of date. Result of node is index of element in selected domain. If there is no such ID of domain element then 0 index will be retrieved (and Is Valid output also indicate this). If multiple elements have the same ID, only first is considered. Index of element can be used next to sample attribute, for index math and etc.
image

See: #114278.

Sample by ID is node to find index of ID in some geometry. It is useful for associative mapping, so index attribute can be used even if geometry was changes and indices are out of date. Result of node is index of element in selected domain. If there is no such ID of domain element then 0 index will be retrieved (and `Is Valid` output also indicate this). If multiple elements have the same ID, only first is considered. Index of element can be used next to sample attribute, for index math and etc. ![image](/attachments/6474d3ed-ec3a-47a2-be2f-1a1b7ef4526a) See: #114278.
Sample by ID.blend
952 KiB
image.png
25 KiB
👍 2 ❤️ 3
Iliya Katushenock added the
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Iliya Katushenock added 2 commits 2024-02-10 21:56:11 +01:00
Iliya Katushenock added 1 commit 2024-02-10 23:14:40 +01:00
Iliya Katushenock added this to the Nodes & Physics project 2024-02-10 23:30:06 +01:00
Shmuel Israel commented 2024-02-11 01:07:33 +01:00
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why are we going through so many implementations lol 😆. we have the Index Map the Sample by Group ID and now Sample by ID 🤔.

for the record I still like the first Implementation the best (with the multi sockets) 👌.

I wish you success.

why are we going through so many implementations lol 😆. we have the `Index Map` the `Sample by Group ID` and now `Sample by ID` 🤔. for the record I still like the first Implementation the best (with the multi sockets) 👌. I wish you success.
Hans Goudey requested review from Jacques Lucke 2024-02-14 16:49:57 +01:00
Hans Goudey requested review from Simon Thommes 2024-02-14 16:49:57 +01:00
Hans Goudey requested review from Hans Goudey 2024-02-14 16:49:58 +01:00
Iliya Katushenock added 2 commits 2024-02-14 23:10:05 +01:00
Iliya Katushenock added 1 commit 2024-02-14 23:51:54 +01:00
Iliya Katushenock added 1 commit 2024-02-14 23:53:16 +01:00
Simon Thommes reviewed 2024-02-19 11:50:53 +01:00
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Just want to mention that I give it an initial test and it seems to be working great!

I do want to stress test it a bit more though later this week.

Just want to mention that I give it an initial test and it seems to be working great! I do want to stress test it a bit more though later this week.
Iliya Katushenock added 2 commits 2024-02-20 21:13:57 +01:00
Iliya Katushenock added 2 commits 2024-02-24 17:32:04 +01:00
010a7866e6 progress 
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Iliya Katushenock commented 2024-02-26 19:04:52 +01:00
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Image of node is added.

Image of node is added.
Iliya Katushenock added 2 commits 2024-02-27 21:57:49 +01:00
Iliya Katushenock added 1 commit 2024-02-29 19:12:32 +01:00
Frizi commented 2024-04-02 00:06:44 +02:00
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Is there anything that could be done to help make this node a part of the 4.2 release?

Is there anything that could be done to help make this node a part of the 4.2 release?
This pull request has changes conflicting with the target branch.
  • source/blender/blenkernel/BKE_node.hh
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From your project repository, check out a new branch and test the changes.
git fetch -u sample_by_id:mod_moder-sample_by_id
git checkout mod_moder-sample_by_id
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