How to use UnsafeMutableRawPointer to fill an array?

Question

I have a Metal texture, I want to access its data from Swift by making it a float4 array (so that I can access each pixel 4 color components).

I discovered this method

Answer 1

To complement @VasilyBodnarchuk's answer:

extension UnsafeMutableRawPointer {
    func toArray(to type: T.Type, capacity count: Int) -> [T] {
        return Array(UnsafeBufferPointer(start: bindMemory(to: type, capacity: count), count: count))
    }
}