init(_:) Creates a new matrix with the specified columns. Declarationinit(_ columns: [SIMD4<Float>]) See AlsoInitializersinit()init(_:)init(diagonal:)init(_:)init(_:)init(_:)init(_:_:_:_:)init(columns:)init(rows:)init(_:)init(_:)init(_:)init(affineTransform:)init(pose:)init(projectiveTransform:)