Cocoa MTKView doesn't use Retina

Question

I have MTKView in Cocoa.

I am showing a texture with drawable.texture - but the texture shows only a quarter of the screen - Non-Retina.

Do I need to make any additional settings to make this work?

class MyView : MTKView

The following code does not affect:

let scale = NSScreen.mainScreen()!.backingScaleFactor
var s = frame.size
s.width *= scale
s.height *= scale

metalLayer.contentsScale = scale
metalLayer.framebufferOnly = false
metalLayer.drawableSize = s

Update:

Here I need to load the texture from the image:

func textureFromImage(image: NSImage, inout tex:MTLTexture?) {


    let textureLoader = MTKTextureLoader(device: self.device!)
    do {
        tex = try textureLoader.newTextureWithCGImage(image.CGImage, options: nil)
    }
    catch {
        fatalError("Can't load texture")
    }
}

and code for presentation:

let commandBuffer = commandQueue.commandBuffer()
    let commandEncoder = commandBuffer.computeCommandEncoder()
    commandEncoder.setComputePipelineState(pipelineState)
    commandEncoder.setTexture(originalTexture, atIndex: 0)
    commandEncoder.setTexture(drawable.texture, atIndex: 1)
    commandEncoder.dispatchThreadgroups(threadgroupsPerGrid, threadsPerThreadgroup: threadsPerThreadgroup)
    commandEncoder.endEncoding()
    commandBuffer.presentDrawable(drawable)
    commandBuffer.commit();

All sizes of the original input image and texture are the same size as the view.

Answer 1

Try changing the contentScaleFactor for the view to 1.