# FxMatrix44 The `FxMatrix` class encapsulates a 4x4 matrix object and provides matrix inversion and transforming of 2D and 3D points. ``` class FxMatrix44 ``` ## Overview> Important: > FxMatrix44 stores its data in *row major* order, which is different from OpenGL. ## Topics ### Creating and Initializing a Matrix [`init!()`](/documentation/professional_video_applications/FxMatrix44/init()) Initializes the matrix to the identity matrix. [`init!(fxMatrix: FxMatrix44!)`](/documentation/professional_video_applications/FxMatrix44/init(fxMatrix:)) Initializes the matrix using the specified matrix object. [`init!(matrix44Data: UnsafeMutablePointer<(Double, Double, Double, Double)>!)`](/documentation/professional_video_applications/FxMatrix44/init(matrix44Data:)) Initializes a matrix with the specified data. [`init!(colorMatrix44Data: UnsafeMutablePointer<(Double, Double, Double, Double)>!)`](/documentation/professional_video_applications/FxMatrix44/init(colorMatrix44Data:)) ### Getting and Setting the Matrix [`func setMatrix(UnsafeMutablePointer<(Double, Double, Double, Double)>!)`](/documentation/professional_video_applications/FxMatrix44/setMatrix(_:)) Sets the matrix to the specified values. [`func matrix() -> UnsafeMutablePointer!`](/documentation/professional_video_applications/FxMatrix44/matrix()) Gets the raw matrix data. [`func setToIdentity()`](/documentation/professional_video_applications/FxMatrix44/setToIdentity()) Sets the matrix to the identity matrix. ### Transforming the Matrix [`func invert() -> Bool`](/documentation/professional_video_applications/FxMatrix44/invert()) Inverts the matrix if possible. [`func invertColorMatrix(withTolerance: Double) -> Bool`](/documentation/professional_video_applications/FxMatrix44/invertColorMatrix(withTolerance:)) Inverts the matrix if possible. [`func transpose()`](/documentation/professional_video_applications/FxMatrix44/transpose()) Transposes the matrix. ### Transforming Points Using the Matrix [`func transform2DPoint(FxPoint2D) -> FxPoint2D`](/documentation/professional_video_applications/FxMatrix44/transform2DPoint(_:)) Transforms a 2D point using the matrix. [`func transform3DPoint(FxPoint3D) -> FxPoint3D`](/documentation/professional_video_applications/FxMatrix44/transform3DPoint(_:)) Transforms a 3D point using the matrix. ### Constants [`typealias Matrix44Data`](/documentation/professional_video_applications/Matrix44Data) A matrix data type in the raw format. ### Initializers [`init?(coder: NSCoder)`](/documentation/professional_video_applications/FxMatrix44/init(coder:)) ## Relationships ### Conforms To [`Hashable`](/documentation/Swift/Hashable) [`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible) [`CVarArg`](/documentation/Swift/CVarArg) [`CustomDebugStringConvertible`](/documentation/Swift/CustomDebugStringConvertible) [`NSSecureCoding`](/documentation/Foundation/NSSecureCoding) [`Equatable`](/documentation/Swift/Equatable) [`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol) [`NSCoding`](/documentation/Foundation/NSCoding) ### Inherits From [`NSObject-swift.class`](/documentation/ObjectiveC/NSObject-swift.class) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)