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[iOS] iPhone XR texture issues when using a vertex shader



Reproduction steps:
1. Download and open the attached "" project
2. Build and deploy the project to iPhone XR
3. Observe the devices screen

Expected result: No graphical corruptions/texture displacements occur
Actual result: Graphical corruptions/texture displacements occur

Reproducible with: 2020.3.23f1
Reproduced with: iPhone XR (iOS 13)
Could not reproduce with: iPhone 12 Pro (iOS 14.2.1), iPhone 13 Pro (iOS 15.0.0)

  1. Resolution Note:

    This issue was that on iPhone XR, anisotropic texture filtering isn't available in a vertex shader. The customer was advised to change the texture filtering mode to something other than anisotropic, which solved their issue.

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