Using Metal and SceneKit together

Question

Created Jun ’15

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I created a SCNView with the Metal Rendering API as shown below, however it does not work. If I change it to any of the opengl options the view is visible, however if set to SCNRenderingAPI.Metal, the view is no longer visible.

Example A (This does not work)

let options = [SCNPreferredRenderingAPIKey : NSNumber(unsignedLong: SCNRenderingAPI.Metal.rawValue)]
let metalGameView = SCNView(frame: self.view.bounds, options: options)

Example B (This does work)

let options = [SCNPreferredRenderingAPIKey : NSNumber(unsignedLong: SCNRenderingAPI.OpenGLCore41.rawValue)]
let metalGameView = SCNView(frame: self.view.bounds, options: options)

Update: I've verified this actually works on iOS, just not on my mac. Metal does run successfully on my mac using MetalKit, just not with this scenekit option.

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Answer 1

salver OP

Jun ’15

It works for me on the Mac with the following code:

        let options = [SCNPreferredRenderingAPIKey: SCNRenderingAPI.Metal.rawValue]
        let sceneView = SCNView(frame: view.bounds, options: options)

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Answer 2

Wil Shipley OP

Aug ’15

What kind of Mac do you have? Metal doesn't work on all Macs (yet!), just like it doesn't work on all iOS devices.

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Answer 3

salver OP

Aug ’15

MacBook Pro (Retina, Mid 2012)

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Answer 4

Wil Shipley OP

Aug ’15

Can you force Intel graphics on it? My understanding is the Intel graphics chip support is more complete than for GeForce cards and such.

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