Found material bindings on prim at path <path> but MaterialBindingAPI is not applied on the prim #107531

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opened 2023-05-02 10:52:03 +02:00 by Wouter-Lemoine · 3 comments

Wouter-Lemoine commented

2023-05-02 10:52:03 +02:00

System Information
Operating system: Linux-6.1.0-7-amd64-x86_64-with-glibc2.36 64 Bits
Graphics card: Mesa Intel(R) UHD Graphics (CML GT2) Intel 4.6 (Core Profile) Mesa 22.3.6

Blender Version
Broken: version: 3.5.1, branch: blender-v3.5-release, commit date: 2023-04-24 18:11, hash: e1ccd9d4a1d3
Worked: ?

Short description of error
Textures/material are not getting imported from .usd files.

Exact steps for others to reproduce the error
Download and extract USD dataset: https://datasets.disneyanimation.com/moanaislandscene/island-usd-v2.0.tgz
File -> Import -> USD -> import island/usd/island.usda

The imported file will not have any materials assigned, the terminal log will include:
Found material bindings on prim at path but MaterialBindingAPI is not applied on the prim.

It also happens with the NVidia Omniverse industrial pack assets.

**System Information** Operating system: Linux-6.1.0-7-amd64-x86_64-with-glibc2.36 64 Bits Graphics card: Mesa Intel(R) UHD Graphics (CML GT2) Intel 4.6 (Core Profile) Mesa 22.3.6 **Blender Version** Broken: version: 3.5.1, branch: blender-v3.5-release, commit date: 2023-04-24 18:11, hash: `e1ccd9d4a1d3` Worked: ? **Short description of error** Textures/material are not getting imported from .usd files. **Exact steps for others to reproduce the error** Download and extract USD dataset: https://datasets.disneyanimation.com/moanaislandscene/island-usd-v2.0.tgz File -> Import -> USD -> import island/usd/island.usda The imported file will not have any materials assigned, the terminal log will include: Found material bindings on prim at path <path> but MaterialBindingAPI is not applied on the prim. It also happens with the NVidia Omniverse industrial pack assets.

Wouter-Lemoine added the

labels 2023-05-02 10:52:04 +02:00

Germano Cavalcante added

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labels 2023-05-02 21:12:19 +02:00

Germano Cavalcante commented

2023-05-02 21:12:28 +02:00

Member

I can confirm. But I'm not sure if this is a bug or a limitation (that maybe can be workaround by some configuration).

I can confirm. But I'm not sure if this is a bug or a limitation (that maybe can be workaround by some configuration).

Jesse Yurkovich commented

2023-05-05 23:32:01 +02:00

Member

This warning(harmless for now) is due to the USD file itself - it is technically missing a particular piece of syntax in the file. Most tooling that exists today unfortunately writes such files.

The warning comes directly from USD code as it reads the file:
b53573ea2a/pxr/usd/usdShade/materialBindingAPI.cpp (L703)

It will also be validated against in the latest usdchecker tool distributed with USD:
https://github.com/PixarAnimationStudios/USD/blob/release/pxr/usd/usdUtils/complianceChecker.py#L600

The upcoming USD 23.08 (release later this summer) will more or less be mandating that these bindings are found.

CC @makowalski There were conversations that happened today about this on the AWSF slack. They're going to try to contact both Disney and nVidia about this but it's something to keep in mind as we update the dependencies.

This warning(harmless for now) is due to the USD file itself - it is technically missing a particular piece of syntax in the file. Most tooling that exists today unfortunately writes such files. The warning comes directly from USD code as it reads the file: https://github.com/PixarAnimationStudios/USD/blob/b53573ea2a6b29bc4a6b129f604bbb342c35df5c/pxr/usd/usdShade/materialBindingAPI.cpp#L703 It will also be validated against in the latest `usdchecker` tool distributed with USD: https://github.com/PixarAnimationStudios/USD/blob/release/pxr/usd/usdUtils/complianceChecker.py#L600 The upcoming USD 23.08 (release later this summer) will more or less be mandating that these bindings are found. CC @makowalski There were conversations that happened today about this on the AWSF slack. They're going to try to contact both Disney and nVidia about this but it's something to keep in mind as we update the dependencies.

Jesse Yurkovich commented

2023-10-15 21:35:13 +02:00

Member

FWIW They released a v2.1 of the Moana dataset to address the MaterialBindingAPI warning:
https://datasets.disneyanimation.com/moanaislandscene/island-usd-v2.1.tgz

Release History
v2.1 June 2023
Updates to apply MaterialBindingAPI where needed by USD 23.08 and higher

I'll close this now though keep in mind that the Moana data set is not going to work well in Blender due to its use of instancing Curve objects. It will also be impacted by #112294 which means a lot of console messages will still appear until that is addressed (hopefully soon).

FWIW They released a v2.1 of the Moana dataset to address the MaterialBindingAPI warning: https://datasets.disneyanimation.com/moanaislandscene/island-usd-v2.1.tgz ``` Release History v2.1 June 2023 Updates to apply MaterialBindingAPI where needed by USD 23.08 and higher ``` I'll close this now though keep in mind that the Moana data set is not going to work well in Blender due to its use of instancing Curve objects. It will also be impacted by #112294 which means _a lot_ of console messages will still appear until that is addressed (hopefully soon).

Jesse Yurkovich closed this issue

2023-10-15 21:35:16 +02:00

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