I am facing weird keyboard issue when building the app with Xcode 26 recently. Actual behaviour I need is: But one below is the issue as the keyboard keys are greyed out: Please tell how to resolve this issue

Hey, I need to know how to use texture mapping for rendering a spectrogram in metal. As I need smoothens the spectrogram. In my current project I am using vertex based approach which results in blocky behaviour between each quad. I need to smooth across each qaud so that It will smoothly gradient over.