func toImage() -> NSImage? {
        let texture = self
        let width = texture.width
        let height = texture.height
        let bytesPerRow = width * 4

        let data = UnsafeMutableRawPointer.allocate(bytes: bytesPerRow * height, alignedTo: 4)
        defer {
            data.deallocate(bytes: bytesPerRow * height, alignedTo: 4)
        }

        let region = MTLRegionMake2D(0, 0, width, height)
        texture.getBytes(data, bytesPerRow: bytesPerRow, from: region, mipmapLevel: 0)
        var buffer = vImage_Buffer(data: data, height: UInt(height), width: UInt(width), rowBytes: bytesPerRow)

        let map: [UInt8] = [2, 1, 0, 3]
        vImagePermuteChannels_ARGB8888(&buffer, &buffer, map, 0)

        guard let colorSpace = CGColorSpace(name: CGColorSpace.genericRGBLinear) else { return nil }
        guard let context = CGContext(data: data, width: width, height: height, bitsPerComponent: 8, bytesPerRow: bytesPerRow,
                                      space: colorSpace, bitmapInfo: CGImageAlphaInfo.noneSkipLast.rawValue) else { return nil }
        guard let cgImage = context.makeImage() else { return nil }


        return NSImage(cgImage: cgImage, size: NSSize(width: width, height: height))
    }

extension MTLTexture {
    func toImage() -> CGImage? {
        let context = CIContext()
        let texture = self
        let cImg = CIImage(mtlTexture: texture, options: nil)!
        let cgImg = context.createCGImage(cImg, from: cImg.extent)!
        return cgImg
    }
}

func anythingHere(_ texture: MTLTexture) -> Bool {
        let width = texture.width
        let height = texture.height
        let bytesPerRow = width * 4

        let data = UnsafeMutableRawPointer.allocate(bytes: bytesPerRow * height, alignedTo: 4)
        defer {
            data.deallocate(bytes: bytesPerRow * height, alignedTo: 4)
        }

        let region = MTLRegionMake2D(0, 0, width, height)
        texture.getBytes(data, bytesPerRow: bytesPerRow, from: region, mipmapLevel: 0)
        var bind = data.assumingMemoryBound(to: UInt8.self)

        var sum:UInt8 = 0;
        for i in 0..<width*height {
            sum += bind.pointee
            bind = bind.advanced(by: 1)
        }
        return sum != 0
}