Issue viewing morph animations for assets converted from glTF2.0 to usdz with Reality Converter

[beersandrew]

There are 3 assets from the glTF2.0 sample assets repo that rely on morphs. Reality Converter will convert them to .usdz however when trying to view the assets or animations in usdview, I can't see the asset.

Here are the converted .usdz files for reference:

• AnimatedMorphCube
• AnimatedMorphSphere
• MorphStressTest

I've run usdchecker on these assets however it returns with Success! so it's not clear to me if this is a limitation of Reality Converter or something else. Happy to do some leg work on this if needed but I'm not sure where to start

[PixelPartner]

Dear Andy, I’d like to note, that the AnimatedMorphCube - <nitpick> animates not only between the two morph targets, but also mixes in the original cube (so, there are 3 states) </nitpick> - The morph animation is not supported in the Space-Bar-Preview in macOS Finder (a different renderer than used by Preview.app) - Nor does it work in AR Quick Look on iOS/iPadOS 16.3/16.4 beta I assume the other samples you mentioned, have similar trouble, as documented by Apple here https://developer.apple.com/documentation/realitykit/validating-usd-files?changes=_3 Validating feature support for USD files | Apple Developer Documentation developer.apple.com — Thomas Kumlehn

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Am 25.02.2023 um 19:22 schrieb Andy ***@***.***>: There are 3 assets from the glTF2.0 sample assets repo <https://github.com/KhronosGroup/glTF-Sample-Models/tree/master/2.0> that rely on morphs. Reality Converter <https://developer.apple.com/augmented-reality/tools/> will convert them to .usdz however when trying to view the assets or animations in usdview, I can't see the asset. Here are the converted .usdz files for reference: AnimatedMorphCube <https://github.com/beersandrew/assets/tree/add-test-assets-from-gltf/test_assets/AnimatedMorphCube> AnimatedMorphSphere <https://github.com/beersandrew/assets/tree/add-test-assets-from-gltf/test_assets/AnimatedMorphSphere> MorphStressTest <https://github.com/beersandrew/assets/tree/add-test-assets-from-gltf/test_assets/MorphStressTest> It's not clear to me if this is a limitation of Reality Converter or something else. Happy to do some leg work on this if needed but I'm not sure where to start — Reply to this email directly, view it on GitHub <#34>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAAR6XYJI5FH6OYC7AAKINLWZJEXLANCNFSM6AAAAAAVH7WFT4>. You are receiving this because you are subscribed to this thread.

[PixelPartner]

Dear Andy, I’d like to note, that the AnimatedMorphCube - <nitpick> animates not only between the two morph targets, but also mixes in the original cube (so, there are 3 states) </nitpick> - The morph animation is not supported in the Space-Bar-Preview in macOS Finder (a different renderer than used by Preview.app) - Nor does it work in AR Quick Look on iOS/iPadOS 16.3/16.4 beta I assume the other samples you mentioned, have similar trouble, as documented by Apple here https://developer.apple.com/documentation/realitykit/validating-usd-files?changes=_3 Validating feature support for USD files | Apple Developer Documentation developer.apple.com Best wishes Thomas Kumlehn ***@***.***

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Am 25.02.2023 um 19:22 schrieb Andy ***@***.***>: There are 3 assets from the glTF2.0 sample assets repo <https://github.com/KhronosGroup/glTF-Sample-Models/tree/master/2.0> that rely on morphs. Reality Converter <https://developer.apple.com/augmented-reality/tools/> will convert them to .usdz however when trying to view the assets or animations in usdview, I can't see the asset. Here are the converted .usdz files for reference: AnimatedMorphCube <https://github.com/beersandrew/assets/tree/add-test-assets-from-gltf/test_assets/AnimatedMorphCube> AnimatedMorphSphere <https://github.com/beersandrew/assets/tree/add-test-assets-from-gltf/test_assets/AnimatedMorphSphere> MorphStressTest <https://github.com/beersandrew/assets/tree/add-test-assets-from-gltf/test_assets/MorphStressTest> It's not clear to me if this is a limitation of Reality Converter or something else. Happy to do some leg work on this if needed but I'm not sure where to start — Reply to this email directly, view it on GitHub <#34>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAAR6XYJI5FH6OYC7AAKINLWZJEXLANCNFSM6AAAAAAVH7WFT4>. You are receiving this because you are subscribed to this thread.

[beersandrew]

Thanks for the info Thomas. This might turn into some note or documentation that overall morphs are not supported (at least from Reality Converter). I'm pretty new to this space and I see a lot of descriptive information on the site you listed about what is and what isn't supported from Apple's side, is there something there that would point to morphs not working? I naively just looked for morphs on that page so maybe it's categorized as some other word in that documentation.

I know another conversion tool guc was brought up from the working group, so maybe I can try that tool and see if morphs will translate properly from there and maybe it would be helpful to list out all of the properties or qualities we look for when converting from one asset to another and how each converter performs with them.

Anyway thanks a lot for testing and taking a look

Best,
Andy

[PixelPartner]

It’s often also called Blendshape and that is currently not supported by RealityKit Thomas Kumlehn ***@***.***

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Am 01.03.2023 um 13:43 schrieb Andy ***@***.***>: Thanks for the info Thomas. This might turn into some note or documentation that overall morphs are not supported (at least from Reality Converter). I'm pretty new to this space and I see a lot of descriptive information on the site you listed about what is and what isn't supported from Apple's side, is there something there that would point to morphs not working? I naively just looked for morphs on that page so maybe it's categorized as some other word in that documentation. I know another conversion tool guc was brought up from the working group, so maybe I can try that tool and see if morphs will translate properly from there and maybe it would be helpful to list out all of the properties or qualities we look for when converting from one asset to another and how each converter performs with them. Anyway thanks a lot for testing and taking a look Best, Andy — Reply to this email directly, view it on GitHub <#34 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAAR6X4JXB7LGKH5POEKVGDWZ5AAZANCNFSM6AAAAAAVH7WFT4>. You are receiving this because you commented.