Beginning Metal - Part 8: Depth | Ray Wenderlich

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@lordandrei - I regard this as an error in the original video.

@novistream posted a link to explain why it worked differently on iOS before, and now they’ve fixed it on iOS 11:

https://forums.developer.apple.com/message/180131#180131

@bababoega posted the fix above:

In viewDidLoad(), right below metalView.clearColor = Colors.wenderlichGreen, add:

metalView.depthStencilPixelFormat = .depth32Float

Also, in Renderable.swift, below pipelineDescriptor.vertexDescriptor = vertexDescriptor,
add

pipelineDescriptor.depthAttachmentPixelFormat = .depth32Float

Thanks for your help, guys :wave: