Fix: USD Import: set active mesh color #105907

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Michael Kowalski wants to merge 1 commits from makowalski:usd_import_set_active_color into main

When changing the target branch, be careful to rebase the branch in your fork to match. See documentation.

NOTE: this is a fix to regression in 3.5, so hopefully
it can be merged into the 3.5 release branch.

Fixed a bug where the active color wasn't being set
on imported meshes, resulting in no colors displaying
in the viewport.

This bug has been in the code for a long time. However,
the colors have been displaying correctly until recently,
so this issue wasn't previously apparent.

Also, changed custom color data name from "displayColors"
to "displayColor", to match the actual USD primvar name.
(This was a typo in the original code.)

Note that pull request

#104542

addresses other issues in the color import code (e.g.,
converting all color primvars and not just "displayColor",
avoiding hard-coding of attribute names, handling all
iterpolation types, etc.).

However, the current commit is meant as a short term fix
to a regression, where the "displayColor" attribute does
not render in the viewport at all, until the above pull
can be merged.

To reproduce the issue, import the pixar Kitchen_set.usd

https://openusd.org/release/dl_kitchen_set.html

with Color Attributes enabled. The meshes render black
when displaying color attributes is enabled in the viewport.

NOTE: this is a fix to regression in 3.5, so hopefully it can be merged into the 3.5 release branch. Fixed a bug where the active color wasn't being set on imported meshes, resulting in no colors displaying in the viewport. This bug has been in the code for a long time. However, the colors have been displaying correctly until recently, so this issue wasn't previously apparent. Also, changed custom color data name from "displayColors" to "displayColor", to match the actual USD primvar name. (This was a typo in the original code.) Note that pull request https://projects.blender.org/blender/blender/pulls/104542 addresses other issues in the color import code (e.g., converting all color primvars and not just "displayColor", avoiding hard-coding of attribute names, handling all iterpolation types, etc.). However, the current commit is meant as a short term fix to a regression, where the "displayColor" attribute does not render in the viewport at all, until the above pull can be merged. To reproduce the issue, import the pixar `Kitchen_set.usd` https://openusd.org/release/dl_kitchen_set.html with `Color Attributes` enabled. The meshes render black when displaying color attributes is enabled in the viewport.
Michael Kowalski added the
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labels 2023-03-20 00:56:06 +01:00
Michael Kowalski added 1 commit 2023-03-20 00:56:17 +01:00
Fixed a bug where the active color wasn't being set
on imported meshes, resulting in no colors displaying
in the viewport.

This bug has been in the code for a long time. However,
the colors have been displaying correctly until recently,
so this issue wasn't previously apparent.

Also, changed custom color data name from "displayColors"
to "displayColor", to match the actual USD primvar name.
(This was a typo in the original code.)

Note that pull request

#104542

addresses other issues in the color import code (e.g.,
converting all color primvars and not just "displayColor",
avoiding hard-coding of attribute names, handling all
iterpolation types, etc.).

However, the current commit is meant as a short term fix
to a regression, where the "displayColor" attribute does
not render in the viewport at all, until the above pull
can be merged.
Michael Kowalski requested review from Matt McLin 2023-03-20 00:56:45 +01:00
Michael Kowalski requested review from Bastien Montagne 2023-03-20 00:57:23 +01:00
Bastien Montagne requested changes 2023-03-20 11:52:31 +01:00
Bastien Montagne left a comment
Owner

Patch LGTM, can you please create a new PR with proper base (3.5 branch rather than main) though? will make it easier to merge.

Patch LGTM, can you please create a new PR with proper base (3.5 branch rather than main) though? will make it easier to merge.
Brecht Van Lommel added this to the 3.5 milestone 2023-03-20 12:07:00 +01:00
Hans Goudey changed title from USD import fix: set active mesh color. to Fix: USD Import: set active mesh color. 2023-03-20 13:21:18 +01:00
Hans Goudey changed title from Fix: USD Import: set active mesh color. to Fix: USD Import: set active mesh color 2023-03-20 14:18:02 +01:00
Author
Member

@mont29 I created a new pull request for this into the 3.5-release branch here:

#105925

So I will now close this pull request in favor of the new one.

@mont29 I created a new pull request for this into the 3.5-release branch here: https://projects.blender.org/blender/blender/pulls/105925 So I will now close this pull request in favor of the new one.
Michael Kowalski closed this pull request 2023-03-20 16:34:38 +01:00
Bastien Montagne deleted branch usd_import_set_active_color 2023-03-20 17:06:46 +01:00

Pull request closed

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