Inconsistent Perspective between iOS and Android

[wcandillon]

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• Search for existing issues: https://github.com/facebook/react-native/issues
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Environment

[skip envinfo]
App created with create-react-native-app running on both iOS and Android.

Description

On Android, there is a default perspective transformation applied to the view. That leads to inconsistent transformations between Android and iOS. By reading the issues on Github, it looks like this default perspective is needed in order for some 2d transformation to work properly on some Android devices. I posted a question about this on stackoverflow: https://stackoverflow.com/questions/53300779/what-is-the-default-react-native-perspective-on-android

Unfortunately, I cannot find the inverse perspective transformation on Android that would lead me to build consistent 3d transformation between iOS and Android.
One suggestion I have (if my understanding of the problem is correct) is that if the transform set on the JS side has a perspective element, don't apply any another transform perspective on Android.

Reproducible Demo

https://snack.expo.io/@wcandillon/test-3d-transform
In the snack above, the animation is 2d as expected on iOS and 3d on Android (not expected).

[react-native-bot]

Can you run react-native info and edit your issue to include these results under the Environment section?

If you believe this information is irrelevant to the reported issue, you may write [skip envinfo] under Environment to let us know.

[wcandillon]

@hramos Why do you think that this isn't a bug report? Many 3d transforms are affected by this issue. I would love to help out, I would need someone to point me in the right direction.

[hramos]

@wcandillon we recently started using the "Type: Bug Report" label in place of "Bug Report". Notice I only removed the old label.

[wcandillon]

Maybe as an alternative, I would be very interested to know which transform on Android cancel the default perspective value set on Android?

On https://github.com/wcandillon/can-it-be-done-in-react-native, I've build a couple of 3d transforms that require to know/set the exact perspective in order for the transform to be pixel perfect.

[stale]

Hey there, it looks like there has been no activity on this issue recently. Has the issue been fixed, or does it still require the community's attention? This issue may be closed if no further activity occurs. You may also label this issue as a "Discussion" or add it to the "Backlog" and I will leave it open. Thank you for your contributions.

[stale]

Closing this issue after a prolonged period of inactivity. If this issue is still present in the latest release, please feel free to create a new issue with up-to-date information.