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Fix: Explicitly prevent capturing built-in attribute with bad mata data #110433

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Iliya Katushenock wants to merge 7 commits from mod_moder/blender:tmp_fix_rewrite_builtin_attr into main
pull from: mod_moder/blender:tmp_fix_rewrite_builtin_attr
merge into: blender:main

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Conversation 1 Commits 7 Files Changed 9 +197 -103
Iliya Katushenock commented 2023-07-24 23:26:01 +02:00
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Add metadata validation for built-in attributes to fix the crash.

New error message in modifier panel:
image

Add metadata validation for built-in attributes to fix the crash. New error message in modifier panel: ![image](/attachments/c9949c1e-11a7-4dbb-842b-9a2635d6e49c)
image.png
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Iliya Katushenock added the
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Iliya Katushenock added 1 commit 2023-07-24 23:26:11 +02:00
Iliya Katushenock requested review from Hans Goudey 2023-07-24 23:26:17 +02:00
Iliya Katushenock added this to the Nodes & Physics project 2023-07-24 23:26:21 +02:00
Lukas Tönne commented 2023-08-17 13:07:07 +02:00
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Do we have existing tests where a regression test could be added? This particular case would be fixed, but since most attributes don't have validators adding some code coverage there could help in future.

Do we have existing tests where a regression test could be added? This particular case would be fixed, but since most attributes don't have validators adding some code coverage there could help in future.
Lukas Tönne requested changes 2023-08-17 13:58:03 +02:00
source/blender/blenkernel/intern/geometry_fields.cc Outdated
@ -510,6 +510,12 @@ bool try_capture_field_on_geometry(GeometryComponent &component,
}
}
if (!attribute_matches) {
Lukas Tönne commented 2023-08-17 13:43:57 +02:00
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Can use else {, we already check for attribute_matches above.

Can use `else {`, we already check for `attribute_matches` above.
mod_moder marked this conversation as resolved
source/blender/blenkernel/intern/geometry_fields.cc Outdated
@ -511,2 +511,4 @@
}
if (!attribute_matches) {
if (attributes.is_builtin(attribute_id)) {
Lukas Tönne commented 2023-08-17 13:57:36 +02:00
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I feel like such a check should be performed on a lower level. Maybe always return a default (no-op) validator from lookup_validator when there is no metadata match. It feels like try_capture_field_on_geometry is the wrong place to do such sanity checks.

If added here, then it needs a comment for explanation. Why can builtin attributes only be captured with matching metadata?

I feel like such a check should be performed on a lower level. Maybe always return a default (no-op) validator from `lookup_validator` when there is no metadata match. It feels like `try_capture_field_on_geometry` is the wrong place to do such sanity checks. If added here, then it needs a comment for explanation. Why can builtin attributes only be captured with matching metadata?
mod_moder marked this conversation as resolved
Iliya Katushenock added 2 commits 2023-08-17 17:38:48 +02:00
Iliya Katushenock requested review from Lukas Tönne 2023-08-17 17:39:03 +02:00
Iliya Katushenock added 2 commits 2023-08-25 00:29:22 +02:00
Iliya Katushenock added 1 commit 2023-08-25 00:39:09 +02:00
Iliya Katushenock added 1 commit 2023-08-31 20:06:51 +02:00
This pull request has changes conflicting with the target branch.
  • source/blender/blenkernel/BKE_attribute.hh
  • source/blender/blenkernel/intern/geometry_component_curves.cc
  • source/blender/blenkernel/intern/geometry_component_mesh.cc
  • source/blender/blenkernel/intern/geometry_fields.cc
  • source/blender/editors/geometry/node_group_operator.cc
  • source/blender/modifiers/intern/MOD_nodes.cc
  • source/blender/nodes/NOD_geometry_nodes_execute.hh
  • source/blender/nodes/intern/geometry_nodes_execute.cc
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