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Fix swizzle edge cases in version upgrade #1957

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nadult
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@nadult nadult commented Aug 1, 2024

This PR fixes 2 edge cases when upgrading materials from version 1.38 to 1.39 involving swizzle nodes:

  • swizzle xyz -> xyz, rgb -> rgb wasn't handled properly, because convert nodedefs were missing for such cases
  • swizzle xy -> xxx is incorrectly changed to convert node

Tests are also added to cover these cases.

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The committers listed above are authorized under a signed CLA.

Signed-off-by: Jonathan Stone <jstone@lucasfilm.com>
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nadult commented Aug 2, 2024

@jstone-lucasfilm sorry for the formatting errors. I actually thought that the code was properly formatted, because I'm using an automatic formatting plugin in Visual Studio based on clang-format. But it turns out, that I'm using a newer version (16) than the version which is used in MaterialX (13 I guess?). Unfortunately even with the same .clang-format configuration file, there are slight differences in formatting between different versions...

In this case, I think it's fine to omit the new unit test for these specific swizzle patterns, following the approach we use for validating earlier version upgrades.

If there are production examples of materials leveraging these swizzle patterns, it would be fine to include them in our test suite with other version upgrade examples:

https://github.com/AcademySoftwareFoundation/MaterialX/tree/main/resources/Materials/TestSuite/stdlib/upgrade

Signed-off-by: Jonathan Stone <jstone@lucasfilm.com>
Signed-off-by: Jonathan Stone <jstone@lucasfilm.com>
Signed-off-by: Jonathan Stone <jstone@lucasfilm.com>
Signed-off-by: Jonathan Stone <jstone@lucasfilm.com>
Signed-off-by: Jonathan Stone <jstone@lucasfilm.com>
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Thanks for this fix, @nadult!

@jstone-lucasfilm jstone-lucasfilm changed the title Fix edge cases in version upgrade (swizzles) Fix swizzle edge cases in version upgrade Aug 8, 2024
@jstone-lucasfilm jstone-lucasfilm merged commit 3ec6e87 into AcademySoftwareFoundation:main Aug 8, 2024
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2 participants