add Matrix3x2 and rename Matrix to Matrix4x4

licenses/microsoft.LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Microsoft Corporation
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

src/Math/BoundingFrustum.cs

@@ -33,7 +33,7 @@ namespace MoonWorks.Math
 		/// <summary>
 		/// Gets or sets the <see cref="Matrix"/> of the frustum.
 		/// </summary>
-		public Matrix Matrix
+		public Matrix4x4 Matrix
 		{
 			get
 			{
@@ -148,7 +148,7 @@ namespace MoonWorks.Math
 
 		#region Private Fields
 
-		private Matrix matrix;
+		private Matrix4x4 matrix;
 		private readonly Vector3[] corners = new Vector3[CornerCount];
 		private readonly Plane[] planes = new Plane[PlaneCount];
 
@@ -165,7 +165,7 @@ namespace MoonWorks.Math
 		/// Constructs the frustum by extracting the view planes from a matrix.
 		/// </summary>
 		/// <param name="value">Combined matrix which usually is (View * Projection).</param>
-		public BoundingFrustum(Matrix value)
+		public BoundingFrustum(Matrix4x4 value)
 		{
 			this.matrix = value;
 			this.CreatePlanes();

src/Math/BoundingSphere.cs

@@ -77,11 +77,11 @@ namespace MoonWorks.Math
 		#region Public Methods
 
 		/// <summary>
-		/// Creates a new <see cref="BoundingSphere"/> that contains a transformation of translation and scale from this sphere by the specified <see cref="Matrix"/>.
+		/// Creates a new <see cref="BoundingSphere"/> that contains a transformation of translation and scale from this sphere by the specified <see cref="Matrix4x4"/>.
 		/// </summary>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <returns>Transformed <see cref="BoundingSphere"/>.</returns>
-		public BoundingSphere Transform(Matrix matrix)
+		public BoundingSphere Transform(Matrix4x4 matrix)
 		{
 			BoundingSphere sphere = new BoundingSphere();
 			sphere.Center = Vector3.Transform(this.Center, matrix);
@@ -99,11 +99,11 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Creates a new <see cref="BoundingSphere"/> that contains a transformation of translation and scale from this sphere by the specified <see cref="Matrix"/>.
+		/// Creates a new <see cref="BoundingSphere"/> that contains a transformation of translation and scale from this sphere by the specified <see cref="Matrix4x4"/>.
 		/// </summary>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <param name="result">Transformed <see cref="BoundingSphere"/> as an output parameter.</param>
-		public void Transform(ref Matrix matrix, out BoundingSphere result)
+		public void Transform(ref Matrix4x4 matrix, out BoundingSphere result)
 		{
 			result.Center = Vector3.Transform(this.Center, matrix);
 			result.Radius = this.Radius *

src/Math/Matrix3x2.cs

@@ -0,0 +1,826 @@
+/* MoonWorks - Game Development Framework
+ * Copyright 2021 Evan Hemsley
+ */
+
+/* Derived from code by Microsoft.
+ * Released under the MIT license.
+ * See microsoft.LICENSE for details.
+ */
+
+using System;
+using System.Globalization;
+
+namespace MoonWorks.Math
+{
+    /// <summary>
+    /// A structure encapsulating a 3x2 matrix.
+    /// </summary>
+    public struct Matrix3x2 : IEquatable<Matrix3x2>
+    {
+        #region Public Fields
+        /// <summary>
+        /// The first element of the first row
+        /// </summary>
+        public float M11;
+        /// <summary>
+        /// The second element of the first row
+        /// </summary>
+        public float M12;
+        /// <summary>
+        /// The first element of the second row
+        /// </summary>
+        public float M21;
+        /// <summary>
+        /// The second element of the second row
+        /// </summary>
+        public float M22;
+        /// <summary>
+        /// The first element of the third row
+        /// </summary>
+        public float M31;
+        /// <summary>
+        /// The second element of the third row
+        /// </summary>
+        public float M32;
+        #endregion Public Fields
+
+        private static readonly Matrix3x2 _identity = new Matrix3x2
+        (
+            1f, 0f,
+            0f, 1f,
+            0f, 0f
+        );
+
+        /// <summary>
+        /// Returns the multiplicative identity matrix.
+        /// </summary>
+        public static Matrix3x2 Identity
+        {
+            get { return _identity; }
+        }
+
+        /// <summary>
+        /// Returns whether the matrix is the identity matrix.
+        /// </summary>
+        public bool IsIdentity
+        {
+            get
+            {
+                return M11 == 1f && M22 == 1f && // Check diagonal element first for early out.
+                                    M12 == 0f &&
+                       M21 == 0f &&
+                       M31 == 0f && M32 == 0f;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the translation component of this matrix.
+        /// </summary>
+        public Vector2 Translation
+        {
+            get
+            {
+                return new Vector2(M31, M32);
+            }
+
+            set
+            {
+                M31 = value.X;
+                M32 = value.Y;
+            }
+        }
+
+        /// <summary>
+        /// Constructs a Matrix3x2 from the given components.
+        /// </summary>
+        public Matrix3x2(float m11, float m12,
+                         float m21, float m22,
+                         float m31, float m32)
+        {
+            this.M11 = m11;
+            this.M12 = m12;
+            this.M21 = m21;
+            this.M22 = m22;
+            this.M31 = m31;
+            this.M32 = m32;
+        }
+
+        /// <summary>
+        /// Creates a translation matrix from the given vector.
+        /// </summary>
+        /// <param name="position">The translation position.</param>
+        /// <returns>A translation matrix.</returns>
+        public static Matrix3x2 CreateTranslation(Vector2 position)
+        {
+            Matrix3x2 result;
+
+            result.M11 = 1.0f;
+            result.M12 = 0.0f;
+            result.M21 = 0.0f;
+            result.M22 = 1.0f;
+
+            result.M31 = position.X;
+            result.M32 = position.Y;
+
+            return result;
+        }
+
+        /// <summary>
+        /// Creates a translation matrix from the given X and Y components.
+        /// </summary>
+        /// <param name="xPosition">The X position.</param>
+        /// <param name="yPosition">The Y position.</param>
+        /// <returns>A translation matrix.</returns>
+        public static Matrix3x2 CreateTranslation(float xPosition, float yPosition)
+        {
+            Matrix3x2 result;
+
+            result.M11 = 1.0f;
+            result.M12 = 0.0f;
+            result.M21 = 0.0f;
+            result.M22 = 1.0f;
+
+            result.M31 = xPosition;
+            result.M32 = yPosition;
+
+            return result;
+        }
+
+        /// <summary>
+        /// Creates a scale matrix from the given X and Y components.
+        /// </summary>
+        /// <param name="xScale">Value to scale by on the X-axis.</param>
+        /// <param name="yScale">Value to scale by on the Y-axis.</param>
+        /// <returns>A scaling matrix.</returns>
+        public static Matrix3x2 CreateScale(float xScale, float yScale)
+        {
+            Matrix3x2 result;
+
+            result.M11 = xScale;
+            result.M12 = 0.0f;
+            result.M21 = 0.0f;
+            result.M22 = yScale;
+            result.M31 = 0.0f;
+            result.M32 = 0.0f;
+
+            return result;
+        }
+
+        /// <summary>
+        /// Creates a scale matrix that is offset by a given center point.
+        /// </summary>
+        /// <param name="xScale">Value to scale by on the X-axis.</param>
+        /// <param name="yScale">Value to scale by on the Y-axis.</param>
+        /// <param name="centerPoint">The center point.</param>
+        /// <returns>A scaling matrix.</returns>
+        public static Matrix3x2 CreateScale(float xScale, float yScale, Vector2 centerPoint)
+        {
+            Matrix3x2 result;
+
+            float tx = centerPoint.X * (1 - xScale);
+            float ty = centerPoint.Y * (1 - yScale);
+
+            result.M11 = xScale;
+            result.M12 = 0.0f;
+            result.M21 = 0.0f;
+            result.M22 = yScale;
+            result.M31 = tx;
+            result.M32 = ty;
+
+            return result;
+        }
+
+        /// <summary>
+        /// Creates a scale matrix from the given vector scale.
+        /// </summary>
+        /// <param name="scales">The scale to use.</param>
+        /// <returns>A scaling matrix.</returns>
+        public static Matrix3x2 CreateScale(Vector2 scales)
+        {
+            Matrix3x2 result;
+
+            result.M11 = scales.X;
+            result.M12 = 0.0f;
+            result.M21 = 0.0f;
+            result.M22 = scales.Y;
+            result.M31 = 0.0f;
+            result.M32 = 0.0f;
+
+            return result;
+        }
+
+        /// <summary>
+        /// Creates a scale matrix from the given vector scale with an offset from the given center point.
+        /// </summary>
+        /// <param name="scales">The scale to use.</param>
+        /// <param name="centerPoint">The center offset.</param>
+        /// <returns>A scaling matrix.</returns>
+        public static Matrix3x2 CreateScale(Vector2 scales, Vector2 centerPoint)
+        {
+            Matrix3x2 result;
+
+            float tx = centerPoint.X * (1 - scales.X);
+            float ty = centerPoint.Y * (1 - scales.Y);
+
+            result.M11 = scales.X;
+            result.M12 = 0.0f;
+            result.M21 = 0.0f;
+            result.M22 = scales.Y;
+            result.M31 = tx;
+            result.M32 = ty;
+
+            return result;
+        }
+
+        /// <summary>
+        /// Creates a scale matrix that scales uniformly with the given scale.
+        /// </summary>
+        /// <param name="scale">The uniform scale to use.</param>
+        /// <returns>A scaling matrix.</returns>
+        public static Matrix3x2 CreateScale(float scale)
+        {
+            Matrix3x2 result;
+
+            result.M11 = scale;
+            result.M12 = 0.0f;
+            result.M21 = 0.0f;
+            result.M22 = scale;
+            result.M31 = 0.0f;
+            result.M32 = 0.0f;
+
+            return result;
+        }
+
+        /// <summary>
+        /// Creates a scale matrix that scales uniformly with the given scale with an offset from the given center.
+        /// </summary>
+        /// <param name="scale">The uniform scale to use.</param>
+        /// <param name="centerPoint">The center offset.</param>
+        /// <returns>A scaling matrix.</returns>
+        public static Matrix3x2 CreateScale(float scale, Vector2 centerPoint)
+        {
+            Matrix3x2 result;
+
+            float tx = centerPoint.X * (1 - scale);
+            float ty = centerPoint.Y * (1 - scale);
+
+            result.M11 = scale;
+            result.M12 = 0.0f;
+            result.M21 = 0.0f;
+            result.M22 = scale;
+            result.M31 = tx;
+            result.M32 = ty;
+
+            return result;
+        }
+
+        /// <summary>
+        /// Creates a skew matrix from the given angles in radians.
+        /// </summary>
+        /// <param name="radiansX">The X angle, in radians.</param>
+        /// <param name="radiansY">The Y angle, in radians.</param>
+        /// <returns>A skew matrix.</returns>
+        public static Matrix3x2 CreateSkew(float radiansX, float radiansY)
+        {
+            Matrix3x2 result;
+
+            float xTan = (float)System.Math.Tan(radiansX);
+            float yTan = (float)System.Math.Tan(radiansY);
+
+            result.M11 = 1.0f;
+            result.M12 = yTan;
+            result.M21 = xTan;
+            result.M22 = 1.0f;
+            result.M31 = 0.0f;
+            result.M32 = 0.0f;
+
+            return result;
+        }
+
+        /// <summary>
+        /// Creates a skew matrix from the given angles in radians and a center point.
+        /// </summary>
+        /// <param name="radiansX">The X angle, in radians.</param>
+        /// <param name="radiansY">The Y angle, in radians.</param>
+        /// <param name="centerPoint">The center point.</param>
+        /// <returns>A skew matrix.</returns>
+        public static Matrix3x2 CreateSkew(float radiansX, float radiansY, Vector2 centerPoint)
+        {
+            Matrix3x2 result;
+
+            float xTan = (float)System.Math.Tan(radiansX);
+            float yTan = (float)System.Math.Tan(radiansY);
+
+            float tx = -centerPoint.Y * xTan;
+            float ty = -centerPoint.X * yTan;
+
+            result.M11 = 1.0f;
+            result.M12 = yTan;
+            result.M21 = xTan;
+            result.M22 = 1.0f;
+            result.M31 = tx;
+            result.M32 = ty;
+
+            return result;
+        }
+
+        /// <summary>
+        /// Creates a rotation matrix using the given rotation in radians.
+        /// </summary>
+        /// <param name="radians">The amount of rotation, in radians.</param>
+        /// <returns>A rotation matrix.</returns>
+        public static Matrix3x2 CreateRotation(float radians)
+        {
+            Matrix3x2 result;
+
+            radians = (float)System.Math.IEEERemainder(radians, System.Math.PI * 2);
+
+            float c, s;
+
+            const float epsilon = 0.001f * (float)System.Math.PI / 180f;     // 0.1% of a degree
+
+            if (radians > -epsilon && radians < epsilon)
+            {
+                // Exact case for zero rotation.
+                c = 1;
+                s = 0;
+            }
+            else if (radians > System.Math.PI / 2 - epsilon && radians < System.Math.PI / 2 + epsilon)
+            {
+                // Exact case for 90 degree rotation.
+                c = 0;
+                s = 1;
+            }
+            else if (radians < -System.Math.PI + epsilon || radians > System.Math.PI - epsilon)
+            {
+                // Exact case for 180 degree rotation.
+                c = -1;
+                s = 0;
+            }
+            else if (radians > -System.Math.PI / 2 - epsilon && radians < -System.Math.PI / 2 + epsilon)
+            {
+                // Exact case for 270 degree rotation.
+                c = 0;
+                s = -1;
+            }
+            else
+            {
+                // Arbitrary rotation.
+                c = (float)System.Math.Cos(radians);
+                s = (float)System.Math.Sin(radians);
+            }
+
+            // [  c  s ]
+            // [ -s  c ]
+            // [  0  0 ]
+            result.M11 = c;
+            result.M12 = s;
+            result.M21 = -s;
+            result.M22 = c;
+            result.M31 = 0.0f;
+            result.M32 = 0.0f;
+
+            return result;
+        }
+
+        /// <summary>
+        /// Creates a rotation matrix using the given rotation in radians and a center point.
+        /// </summary>
+        /// <param name="radians">The amount of rotation, in radians.</param>
+        /// <param name="centerPoint">The center point.</param>
+        /// <returns>A rotation matrix.</returns>
+        public static Matrix3x2 CreateRotation(float radians, Vector2 centerPoint)
+        {
+            Matrix3x2 result;
+
+            radians = (float)System.Math.IEEERemainder(radians, System.Math.PI * 2);
+
+            float c, s;
+
+            const float epsilon = 0.001f * (float)System.Math.PI / 180f;     // 0.1% of a degree
+
+            if (radians > -epsilon && radians < epsilon)
+            {
+                // Exact case for zero rotation.
+                c = 1;
+                s = 0;
+            }
+            else if (radians > System.Math.PI / 2 - epsilon && radians < System.Math.PI / 2 + epsilon)
+            {
+                // Exact case for 90 degree rotation.
+                c = 0;
+                s = 1;
+            }
+            else if (radians < -System.Math.PI + epsilon || radians > System.Math.PI - epsilon)
+            {
+                // Exact case for 180 degree rotation.
+                c = -1;
+                s = 0;
+            }
+            else if (radians > -System.Math.PI / 2 - epsilon && radians < -System.Math.PI / 2 + epsilon)
+            {
+                // Exact case for 270 degree rotation.
+                c = 0;
+                s = -1;
+            }
+            else
+            {
+                // Arbitrary rotation.
+                c = (float)System.Math.Cos(radians);
+                s = (float)System.Math.Sin(radians);
+            }
+
+            float x = centerPoint.X * (1 - c) + centerPoint.Y * s;
+            float y = centerPoint.Y * (1 - c) - centerPoint.X * s;
+
+            // [  c  s ]
+            // [ -s  c ]
+            // [  x  y ]
+            result.M11 = c;
+            result.M12 = s;
+            result.M21 = -s;
+            result.M22 = c;
+            result.M31 = x;
+            result.M32 = y;
+
+            return result;
+        }
+
+        /// <summary>
+        /// Calculates the determinant for this matrix.
+        /// The determinant is calculated by expanding the matrix with a third column whose values are (0,0,1).
+        /// </summary>
+        /// <returns>The determinant.</returns>
+        public float GetDeterminant()
+        {
+            // There isn't actually any such thing as a determinant for a non-square matrix,
+            // but this 3x2 type is really just an optimization of a 3x3 where we happen to
+            // know the rightmost column is always (0, 0, 1). So we expand to 3x3 format:
+            //
+            //  [ M11, M12, 0 ]
+            //  [ M21, M22, 0 ]
+            //  [ M31, M32, 1 ]
+            //
+            // Sum the diagonal products:
+            //  (M11 * M22 * 1) + (M12 * 0 * M31) + (0 * M21 * M32)
+            //
+            // Subtract the opposite diagonal products:
+            //  (M31 * M22 * 0) + (M32 * 0 * M11) + (1 * M21 * M12)
+            //
+            // Collapse out the constants and oh look, this is just a 2x2 determinant!
+
+            return (M11 * M22) - (M21 * M12);
+        }
+
+        /// <summary>
+        /// Attempts to invert the given matrix. If the operation succeeds, the inverted matrix is stored in the result parameter.
+        /// </summary>
+        /// <param name="matrix">The source matrix.</param>
+        /// <param name="result">The output matrix.</param>
+        /// <returns>True if the operation succeeded, False otherwise.</returns>
+        public static bool Invert(Matrix3x2 matrix, out Matrix3x2 result)
+        {
+            float det = (matrix.M11 * matrix.M22) - (matrix.M21 * matrix.M12);
+
+            if (System.Math.Abs(det) < float.Epsilon)
+            {
+                result = new Matrix3x2(float.NaN, float.NaN, float.NaN, float.NaN, float.NaN, float.NaN);
+                return false;
+            }
+
+            float invDet = 1.0f / det;
+
+            result.M11 = matrix.M22 * invDet;
+            result.M12 = -matrix.M12 * invDet;
+            result.M21 = -matrix.M21 * invDet;
+            result.M22 = matrix.M11 * invDet;
+            result.M31 = (matrix.M21 * matrix.M32 - matrix.M31 * matrix.M22) * invDet;
+            result.M32 = (matrix.M31 * matrix.M12 - matrix.M11 * matrix.M32) * invDet;
+
+            return true;
+        }
+
+        /// <summary>
+        /// Linearly interpolates from matrix1 to matrix2, based on the third parameter.
+        /// </summary>
+        /// <param name="matrix1">The first source matrix.</param>
+        /// <param name="matrix2">The second source matrix.</param>
+        /// <param name="amount">The relative weighting of matrix2.</param>
+        /// <returns>The interpolated matrix.</returns>
+        public static Matrix3x2 Lerp(Matrix3x2 matrix1, Matrix3x2 matrix2, float amount)
+        {
+            Matrix3x2 result;
+
+            // First row
+            result.M11 = matrix1.M11 + (matrix2.M11 - matrix1.M11) * amount;
+            result.M12 = matrix1.M12 + (matrix2.M12 - matrix1.M12) * amount;
+
+            // Second row
+            result.M21 = matrix1.M21 + (matrix2.M21 - matrix1.M21) * amount;
+            result.M22 = matrix1.M22 + (matrix2.M22 - matrix1.M22) * amount;
+
+            // Third row
+            result.M31 = matrix1.M31 + (matrix2.M31 - matrix1.M31) * amount;
+            result.M32 = matrix1.M32 + (matrix2.M32 - matrix1.M32) * amount;
+
+            return result;
+        }
+
+        /// <summary>
+        /// Negates the given matrix by multiplying all values by -1.
+        /// </summary>
+        /// <param name="value">The source matrix.</param>
+        /// <returns>The negated matrix.</returns>
+        public static Matrix3x2 Negate(Matrix3x2 value)
+        {
+            Matrix3x2 result;
+
+            result.M11 = -value.M11;
+            result.M12 = -value.M12;
+            result.M21 = -value.M21;
+            result.M22 = -value.M22;
+            result.M31 = -value.M31;
+            result.M32 = -value.M32;
+
+            return result;
+        }
+
+        /// <summary>
+        /// Adds each matrix element in value1 with its corresponding element in value2.
+        /// </summary>
+        /// <param name="value1">The first source matrix.</param>
+        /// <param name="value2">The second source matrix.</param>
+        /// <returns>The matrix containing the summed values.</returns>
+        public static Matrix3x2 Add(Matrix3x2 value1, Matrix3x2 value2)
+        {
+            Matrix3x2 result;
+
+            result.M11 = value1.M11 + value2.M11;
+            result.M12 = value1.M12 + value2.M12;
+            result.M21 = value1.M21 + value2.M21;
+            result.M22 = value1.M22 + value2.M22;
+            result.M31 = value1.M31 + value2.M31;
+            result.M32 = value1.M32 + value2.M32;
+
+            return result;
+        }
+
+        /// <summary>
+        /// Subtracts each matrix element in value2 from its corresponding element in value1.
+        /// </summary>
+        /// <param name="value1">The first source matrix.</param>
+        /// <param name="value2">The second source matrix.</param>
+        /// <returns>The matrix containing the resulting values.</returns>
+        public static Matrix3x2 Subtract(Matrix3x2 value1, Matrix3x2 value2)
+        {
+            Matrix3x2 result;
+
+            result.M11 = value1.M11 - value2.M11;
+            result.M12 = value1.M12 - value2.M12;
+            result.M21 = value1.M21 - value2.M21;
+            result.M22 = value1.M22 - value2.M22;
+            result.M31 = value1.M31 - value2.M31;
+            result.M32 = value1.M32 - value2.M32;
+
+            return result;
+        }
+
+        /// <summary>
+        /// Multiplies two matrices together and returns the resulting matrix.
+        /// </summary>
+        /// <param name="value1">The first source matrix.</param>
+        /// <param name="value2">The second source matrix.</param>
+        /// <returns>The product matrix.</returns>
+        public static Matrix3x2 Multiply(Matrix3x2 value1, Matrix3x2 value2)
+        {
+            Matrix3x2 result;
+
+            // First row
+            result.M11 = value1.M11 * value2.M11 + value1.M12 * value2.M21;
+            result.M12 = value1.M11 * value2.M12 + value1.M12 * value2.M22;
+
+            // Second row
+            result.M21 = value1.M21 * value2.M11 + value1.M22 * value2.M21;
+            result.M22 = value1.M21 * value2.M12 + value1.M22 * value2.M22;
+
+            // Third row
+            result.M31 = value1.M31 * value2.M11 + value1.M32 * value2.M21 + value2.M31;
+            result.M32 = value1.M31 * value2.M12 + value1.M32 * value2.M22 + value2.M32;
+
+            return result;
+        }
+
+        public Matrix4x4 ToMatrix4x4()
+        {
+            return new Matrix4x4(
+                M11, M12, 0, 0,
+                M21, M22, 0, 0,
+                  0,   0, 1, 0,
+                M31, M32, 0, 1
+            );
+        }
+
+        /// <summary>
+        /// Scales all elements in a matrix by the given scalar factor.
+        /// </summary>
+        /// <param name="value1">The source matrix.</param>
+        /// <param name="value2">The scaling value to use.</param>
+        /// <returns>The resulting matrix.</returns>
+        public static Matrix3x2 Multiply(Matrix3x2 value1, float value2)
+        {
+            Matrix3x2 result;
+
+            result.M11 = value1.M11 * value2;
+            result.M12 = value1.M12 * value2;
+            result.M21 = value1.M21 * value2;
+            result.M22 = value1.M22 * value2;
+            result.M31 = value1.M31 * value2;
+            result.M32 = value1.M32 * value2;
+
+            return result;
+        }
+
+        /// <summary>
+        /// Negates the given matrix by multiplying all values by -1.
+        /// </summary>
+        /// <param name="value">The source matrix.</param>
+        /// <returns>The negated matrix.</returns>
+        public static Matrix3x2 operator -(Matrix3x2 value)
+        {
+            Matrix3x2 m;
+
+            m.M11 = -value.M11;
+            m.M12 = -value.M12;
+            m.M21 = -value.M21;
+            m.M22 = -value.M22;
+            m.M31 = -value.M31;
+            m.M32 = -value.M32;
+
+            return m;
+        }
+
+        /// <summary>
+        /// Adds each matrix element in value1 with its corresponding element in value2.
+        /// </summary>
+        /// <param name="value1">The first source matrix.</param>
+        /// <param name="value2">The second source matrix.</param>
+        /// <returns>The matrix containing the summed values.</returns>
+        public static Matrix3x2 operator +(Matrix3x2 value1, Matrix3x2 value2)
+        {
+            Matrix3x2 m;
+
+            m.M11 = value1.M11 + value2.M11;
+            m.M12 = value1.M12 + value2.M12;
+            m.M21 = value1.M21 + value2.M21;
+            m.M22 = value1.M22 + value2.M22;
+            m.M31 = value1.M31 + value2.M31;
+            m.M32 = value1.M32 + value2.M32;
+
+            return m;
+        }
+
+        /// <summary>
+        /// Subtracts each matrix element in value2 from its corresponding element in value1.
+        /// </summary>
+        /// <param name="value1">The first source matrix.</param>
+        /// <param name="value2">The second source matrix.</param>
+        /// <returns>The matrix containing the resulting values.</returns>
+        public static Matrix3x2 operator -(Matrix3x2 value1, Matrix3x2 value2)
+        {
+            Matrix3x2 m;
+
+            m.M11 = value1.M11 - value2.M11;
+            m.M12 = value1.M12 - value2.M12;
+            m.M21 = value1.M21 - value2.M21;
+            m.M22 = value1.M22 - value2.M22;
+            m.M31 = value1.M31 - value2.M31;
+            m.M32 = value1.M32 - value2.M32;
+
+            return m;
+        }
+
+        /// <summary>
+        /// Multiplies two matrices together and returns the resulting matrix.
+        /// </summary>
+        /// <param name="value1">The first source matrix.</param>
+        /// <param name="value2">The second source matrix.</param>
+        /// <returns>The product matrix.</returns>
+        public static Matrix3x2 operator *(Matrix3x2 value1, Matrix3x2 value2)
+        {
+            Matrix3x2 m;
+
+            // First row
+            m.M11 = value1.M11 * value2.M11 + value1.M12 * value2.M21;
+            m.M12 = value1.M11 * value2.M12 + value1.M12 * value2.M22;
+
+            // Second row
+            m.M21 = value1.M21 * value2.M11 + value1.M22 * value2.M21;
+            m.M22 = value1.M21 * value2.M12 + value1.M22 * value2.M22;
+
+            // Third row
+            m.M31 = value1.M31 * value2.M11 + value1.M32 * value2.M21 + value2.M31;
+            m.M32 = value1.M31 * value2.M12 + value1.M32 * value2.M22 + value2.M32;
+
+            return m;
+        }
+
+        /// <summary>
+        /// Scales all elements in a matrix by the given scalar factor.
+        /// </summary>
+        /// <param name="value1">The source matrix.</param>
+        /// <param name="value2">The scaling value to use.</param>
+        /// <returns>The resulting matrix.</returns>
+        public static Matrix3x2 operator *(Matrix3x2 value1, float value2)
+        {
+            Matrix3x2 m;
+
+            m.M11 = value1.M11 * value2;
+            m.M12 = value1.M12 * value2;
+            m.M21 = value1.M21 * value2;
+            m.M22 = value1.M22 * value2;
+            m.M31 = value1.M31 * value2;
+            m.M32 = value1.M32 * value2;
+
+            return m;
+        }
+
+        /// <summary>
+        /// Returns a boolean indicating whether the given matrices are equal.
+        /// </summary>
+        /// <param name="value1">The first source matrix.</param>
+        /// <param name="value2">The second source matrix.</param>
+        /// <returns>True if the matrices are equal; False otherwise.</returns>
+        public static bool operator ==(Matrix3x2 value1, Matrix3x2 value2)
+        {
+            return (value1.M11 == value2.M11 && value1.M22 == value2.M22 && // Check diagonal element first for early out.
+                                                value1.M12 == value2.M12 &&
+                    value1.M21 == value2.M21 &&
+                    value1.M31 == value2.M31 && value1.M32 == value2.M32);
+        }
+
+        /// <summary>
+        /// Returns a boolean indicating whether the given matrices are not equal.
+        /// </summary>
+        /// <param name="value1">The first source matrix.</param>
+        /// <param name="value2">The second source matrix.</param>
+        /// <returns>True if the matrices are not equal; False if they are equal.</returns>
+        public static bool operator !=(Matrix3x2 value1, Matrix3x2 value2)
+        {
+            return (value1.M11 != value2.M11 || value1.M12 != value2.M12 ||
+                    value1.M21 != value2.M21 || value1.M22 != value2.M22 ||
+                    value1.M31 != value2.M31 || value1.M32 != value2.M32);
+        }
+
+        /// <summary>
+        /// Returns a boolean indicating whether the matrix is equal to the other given matrix.
+        /// </summary>
+        /// <param name="other">The other matrix to test equality against.</param>
+        /// <returns>True if this matrix is equal to other; False otherwise.</returns>
+        public bool Equals(Matrix3x2 other)
+        {
+            return (M11 == other.M11 && M22 == other.M22 && // Check diagonal element first for early out.
+                                        M12 == other.M12 &&
+                    M21 == other.M21 &&
+                    M31 == other.M31 && M32 == other.M32);
+        }
+
+        /// <summary>
+        /// Returns a boolean indicating whether the given Object is equal to this matrix instance.
+        /// </summary>
+        /// <param name="obj">The Object to compare against.</param>
+        /// <returns>True if the Object is equal to this matrix; False otherwise.</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj is Matrix3x2)
+            {
+                return Equals((Matrix3x2)obj);
+            }
+
+            return false;
+        }
+
+        /// <summary>
+        /// Returns a String representing this matrix instance.
+        /// </summary>
+        /// <returns>The string representation.</returns>
+        public override string ToString()
+        {
+            CultureInfo ci = CultureInfo.CurrentCulture;
+            return String.Format(ci, "{{ {{M11:{0} M12:{1}}} {{M21:{2} M22:{3}}} {{M31:{4} M32:{5}}} }}",
+                                 M11.ToString(ci), M12.ToString(ci),
+                                 M21.ToString(ci), M22.ToString(ci),
+                                 M31.ToString(ci), M32.ToString(ci));
+        }
+
+        /// <summary>
+        /// Returns the hash code for this instance.
+        /// </summary>
+        /// <returns>The hash code.</returns>
+        public override int GetHashCode()
+        {
+            return M11.GetHashCode() + M12.GetHashCode() +
+                   M21.GetHashCode() + M22.GetHashCode() +
+                   M31.GetHashCode() + M32.GetHashCode();
+        }
+    }
+}

src/Math/Plane.cs

@@ -216,7 +216,7 @@ namespace MoonWorks.Math
 		/// <param name="plane">The normalized plane to transform.</param>
 		/// <param name="matrix">The transformation matrix.</param>
 		/// <returns>The transformed plane.</returns>
-		public static Plane Transform(Plane plane, Matrix matrix)
+		public static Plane Transform(Plane plane, Matrix4x4 matrix)
 		{
 			Plane result;
 			Transform(ref plane, ref matrix, out result);
@@ -231,16 +231,16 @@ namespace MoonWorks.Math
 		/// <param name="result">The transformed plane.</param>
 		public static void Transform(
 			ref Plane plane,
-			ref Matrix matrix,
+			ref Matrix4x4 matrix,
 			out Plane result
 		) {
 			/* See "Transforming Normals" in
 			 * http://www.glprogramming.com/red/appendixf.html
 			 * for an explanation of how this works.
 			 */
-			Matrix transformedMatrix;
+			Matrix4x4 transformedMatrix;
-			Matrix.Invert(ref matrix, out transformedMatrix);
+			Matrix4x4.Invert(ref matrix, out transformedMatrix);
-			Matrix.Transpose(
+			Matrix4x4.Transpose(
 				ref transformedMatrix,
 				out transformedMatrix
 			);

src/Math/Quaternion.cs

@@ -370,11 +370,11 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Creates a new <see cref="Quaternion"/> from the specified <see cref="Matrix"/>.
+		/// Creates a new <see cref="Quaternion"/> from the specified <see cref="Matrix4x4"/>.
 		/// </summary>
 		/// <param name="matrix">The rotation matrix.</param>
 		/// <returns>A quaternion composed from the rotation part of the matrix.</returns>
-		public static Quaternion CreateFromRotationMatrix(Matrix matrix)
+		public static Quaternion CreateFromRotationMatrix(Matrix4x4 matrix)
 		{
 			Quaternion quaternion;
 			CreateFromRotationMatrix(ref matrix, out quaternion);
@@ -382,11 +382,11 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Creates a new <see cref="Quaternion"/> from the specified <see cref="Matrix"/>.
+		/// Creates a new <see cref="Quaternion"/> from the specified <see cref="Matrix4x4"/>.
 		/// </summary>
 		/// <param name="matrix">The rotation matrix.</param>
 		/// <param name="result">A quaternion composed from the rotation part of the matrix as an output parameter.</param>
-		public static void CreateFromRotationMatrix(ref Matrix matrix, out Quaternion result)
+		public static void CreateFromRotationMatrix(ref Matrix4x4 matrix, out Quaternion result)
 		{
 			float sqrt;
 			float half;

src/Math/Vector2.cs

@@ -804,12 +804,12 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Creates a new <see cref="Vector2"/> that contains a transformation of 2d-vector by the specified <see cref="Matrix"/>.
+		/// Creates a new <see cref="Vector2"/> that contains a transformation of 2d-vector by the specified <see cref="Matrix4x4"/>.
 		/// </summary>
 		/// <param name="position">Source <see cref="Vector2"/>.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <returns>Transformed <see cref="Vector2"/>.</returns>
-		public static Vector2 Transform(Vector2 position, Matrix matrix)
+		public static Vector2 Transform(Vector2 position, Matrix4x4 matrix)
 		{
 			return new Vector2(
 				(position.X * matrix.M11) + (position.Y * matrix.M21) + matrix.M41,
@@ -818,14 +818,14 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Creates a new <see cref="Vector2"/> that contains a transformation of 2d-vector by the specified <see cref="Matrix"/>.
+		/// Creates a new <see cref="Vector2"/> that contains a transformation of 2d-vector by the specified <see cref="Matrix4x4"/>.
 		/// </summary>
 		/// <param name="position">Source <see cref="Vector2"/>.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <param name="result">Transformed <see cref="Vector2"/> as an output parameter.</param>
 		public static void Transform(
 			ref Vector2 position,
-			ref Matrix matrix,
+			ref Matrix4x4 matrix,
 			out Vector2 result
 		) {
 			float x = (position.X * matrix.M11) + (position.Y * matrix.M21) + matrix.M41;
@@ -866,32 +866,32 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Apply transformation on all vectors within array of <see cref="Vector2"/> by the specified <see cref="Matrix"/> and places the results in an another array.
+		/// Apply transformation on all vectors within array of <see cref="Vector2"/> by the specified <see cref="Matrix4x4"/> and places the results in an another array.
 		/// </summary>
 		/// <param name="sourceArray">Source array.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <param name="destinationArray">Destination array.</param>
 		public static void Transform(
 			Vector2[] sourceArray,
-			ref Matrix matrix,
+			ref Matrix4x4 matrix,
 			Vector2[] destinationArray
 		) {
 			Transform(sourceArray, 0, ref matrix, destinationArray, 0, sourceArray.Length);
 		}
 
 		/// <summary>
-		/// Apply transformation on vectors within array of <see cref="Vector2"/> by the specified <see cref="Matrix"/> and places the results in an another array.
+		/// Apply transformation on vectors within array of <see cref="Vector2"/> by the specified <see cref="Matrix4x4"/> and places the results in an another array.
 		/// </summary>
 		/// <param name="sourceArray">Source array.</param>
 		/// <param name="sourceIndex">The starting index of transformation in the source array.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <param name="destinationArray">Destination array.</param>
 		/// <param name="destinationIndex">The starting index in the destination array, where the first <see cref="Vector2"/> should be written.</param>
 		/// <param name="length">The number of vectors to be transformed.</param>
 		public static void Transform(
 			Vector2[] sourceArray,
 			int sourceIndex,
-			ref Matrix matrix,
+			ref Matrix4x4 matrix,
 			Vector2[] destinationArray,
 			int destinationIndex,
 			int length
@@ -956,12 +956,12 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Creates a new <see cref="Vector2"/> that contains a transformation of the specified normal by the specified <see cref="Matrix"/>.
+		/// Creates a new <see cref="Vector2"/> that contains a transformation of the specified normal by the specified <see cref="Matrix4x4"/>.
 		/// </summary>
 		/// <param name="normal">Source <see cref="Vector2"/> which represents a normal vector.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <returns>Transformed normal.</returns>
-		public static Vector2 TransformNormal(Vector2 normal, Matrix matrix)
+		public static Vector2 TransformNormal(Vector2 normal, Matrix4x4 matrix)
 		{
 			return new Vector2(
 				(normal.X * matrix.M11) + (normal.Y * matrix.M21),
@@ -970,14 +970,14 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Creates a new <see cref="Vector2"/> that contains a transformation of the specified normal by the specified <see cref="Matrix"/>.
+		/// Creates a new <see cref="Vector2"/> that contains a transformation of the specified normal by the specified <see cref="Matrix4x4"/>.
 		/// </summary>
 		/// <param name="normal">Source <see cref="Vector2"/> which represents a normal vector.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <param name="result">Transformed normal as an output parameter.</param>
 		public static void TransformNormal(
 			ref Vector2 normal,
-			ref Matrix matrix,
+			ref Matrix4x4 matrix,
 			out Vector2 result
 		) {
 			float x = (normal.X * matrix.M11) + (normal.Y * matrix.M21);
@@ -987,14 +987,14 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Apply transformation on all normals within array of <see cref="Vector2"/> by the specified <see cref="Matrix"/> and places the results in an another array.
+		/// Apply transformation on all normals within array of <see cref="Vector2"/> by the specified <see cref="Matrix4x4"/> and places the results in an another array.
 		/// </summary>
 		/// <param name="sourceArray">Source array.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <param name="destinationArray">Destination array.</param>
 		public static void TransformNormal(
 			Vector2[] sourceArray,
-			ref Matrix matrix,
+			ref Matrix4x4 matrix,
 			Vector2[] destinationArray
 		) {
 			TransformNormal(
@@ -1008,18 +1008,18 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Apply transformation on normals within array of <see cref="Vector2"/> by the specified <see cref="Matrix"/> and places the results in an another array.
+		/// Apply transformation on normals within array of <see cref="Vector2"/> by the specified <see cref="Matrix4x4"/> and places the results in an another array.
 		/// </summary>
 		/// <param name="sourceArray">Source array.</param>
 		/// <param name="sourceIndex">The starting index of transformation in the source array.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <param name="destinationArray">Destination array.</param>
 		/// <param name="destinationIndex">The starting index in the destination array, where the first <see cref="Vector2"/> should be written.</param>
 		/// <param name="length">The number of normals to be transformed.</param>
 		public static void TransformNormal(
 			Vector2[] sourceArray,
 			int sourceIndex,
-			ref Matrix matrix,
+			ref Matrix4x4 matrix,
 			Vector2[] destinationArray,
 			int destinationIndex,
 			int length

src/Math/Vector3.cs

@@ -1013,26 +1013,26 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Creates a new <see cref="Vector3"/> that contains a transformation of 3d-vector by the specified <see cref="Matrix"/>.
+		/// Creates a new <see cref="Vector3"/> that contains a transformation of 3d-vector by the specified <see cref="Matrix4x4"/>.
 		/// </summary>
 		/// <param name="position">Source <see cref="Vector3"/>.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <returns>Transformed <see cref="Vector3"/>.</returns>
-		public static Vector3 Transform(Vector3 position, Matrix matrix)
+		public static Vector3 Transform(Vector3 position, Matrix4x4 matrix)
 		{
 			Transform(ref position, ref matrix, out position);
 			return position;
 		}
 
 		/// <summary>
-		/// Creates a new <see cref="Vector3"/> that contains a transformation of 3d-vector by the specified <see cref="Matrix"/>.
+		/// Creates a new <see cref="Vector3"/> that contains a transformation of 3d-vector by the specified <see cref="Matrix4x4"/>.
 		/// </summary>
 		/// <param name="position">Source <see cref="Vector3"/>.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <param name="result">Transformed <see cref="Vector3"/> as an output parameter.</param>
 		public static void Transform(
 			ref Vector3 position,
-			ref Matrix matrix,
+			ref Matrix4x4 matrix,
 			out Vector3 result
 		) {
 			float x = (
@@ -1059,14 +1059,14 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Apply transformation on all vectors within array of <see cref="Vector3"/> by the specified <see cref="Matrix"/> and places the results in an another array.
+		/// Apply transformation on all vectors within array of <see cref="Vector3"/> by the specified <see cref="Matrix4x4"/> and places the results in an another array.
 		/// </summary>
 		/// <param name="sourceArray">Source array.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <param name="destinationArray">Destination array.</param>
 		public static void Transform(
 			Vector3[] sourceArray,
-			ref Matrix matrix,
+			ref Matrix4x4 matrix,
 			Vector3[] destinationArray
 		) {
 			Debug.Assert(
@@ -1093,18 +1093,18 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Apply transformation on vectors within array of <see cref="Vector3"/> by the specified <see cref="Matrix"/> and places the results in an another array.
+		/// Apply transformation on vectors within array of <see cref="Vector3"/> by the specified <see cref="Matrix4x4"/> and places the results in an another array.
 		/// </summary>
 		/// <param name="sourceArray">Source array.</param>
 		/// <param name="sourceIndex">The starting index of transformation in the source array.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <param name="destinationArray">Destination array.</param>
 		/// <param name="destinationIndex">The starting index in the destination array, where the first <see cref="Vector3"/> should be written.</param>
 		/// <param name="length">The number of vectors to be transformed.</param>
 		public static void Transform(
 			Vector3[] sourceArray,
 			int sourceIndex,
-			ref Matrix matrix,
+			ref Matrix4x4 matrix,
 			Vector3[] destinationArray,
 			int destinationIndex,
 			int length
@@ -1255,26 +1255,26 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Creates a new <see cref="Vector3"/> that contains a transformation of the specified normal by the specified <see cref="Matrix"/>.
+		/// Creates a new <see cref="Vector3"/> that contains a transformation of the specified normal by the specified <see cref="Matrix4x4"/>.
 		/// </summary>
 		/// <param name="normal">Source <see cref="Vector3"/> which represents a normal vector.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <returns>Transformed normal.</returns>
-		public static Vector3 TransformNormal(Vector3 normal, Matrix matrix)
+		public static Vector3 TransformNormal(Vector3 normal, Matrix4x4 matrix)
 		{
 			TransformNormal(ref normal, ref matrix, out normal);
 			return normal;
 		}
 
 		/// <summary>
-		/// Creates a new <see cref="Vector3"/> that contains a transformation of the specified normal by the specified <see cref="Matrix"/>.
+		/// Creates a new <see cref="Vector3"/> that contains a transformation of the specified normal by the specified <see cref="Matrix4x4"/>.
 		/// </summary>
 		/// <param name="normal">Source <see cref="Vector3"/> which represents a normal vector.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <param name="result">Transformed normal as an output parameter.</param>
 		public static void TransformNormal(
 			ref Vector3 normal,
-			ref Matrix matrix,
+			ref Matrix4x4 matrix,
 			out Vector3 result
 		) {
 			float x = (normal.X * matrix.M11) + (normal.Y * matrix.M21) + (normal.Z * matrix.M31);
@@ -1286,14 +1286,14 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Apply transformation on all normals within array of <see cref="Vector3"/> by the specified <see cref="Matrix"/> and places the results in an another array.
+		/// Apply transformation on all normals within array of <see cref="Vector3"/> by the specified <see cref="Matrix4x4"/> and places the results in an another array.
 		/// </summary>
 		/// <param name="sourceArray">Source array.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <param name="destinationArray">Destination array.</param>
 		public static void TransformNormal(
 			Vector3[] sourceArray,
-			ref Matrix matrix,
+			ref Matrix4x4 matrix,
 			Vector3[] destinationArray
 		) {
 			Debug.Assert(
@@ -1311,18 +1311,18 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Apply transformation on normals within array of <see cref="Vector3"/> by the specified <see cref="Matrix"/> and places the results in an another array.
+		/// Apply transformation on normals within array of <see cref="Vector3"/> by the specified <see cref="Matrix4x4"/> and places the results in an another array.
 		/// </summary>
 		/// <param name="sourceArray">Source array.</param>
 		/// <param name="sourceIndex">The starting index of transformation in the source array.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <param name="destinationArray">Destination array.</param>
 		/// <param name="destinationIndex">The starting index in the destination array, where the first <see cref="Vector3"/> should be written.</param>
 		/// <param name="length">The number of normals to be transformed.</param>
 		public static void TransformNormal(
 			Vector3[] sourceArray,
 			int sourceIndex,
-			ref Matrix matrix,
+			ref Matrix4x4 matrix,
 			Vector3[] destinationArray,
 			int destinationIndex,
 			int length

src/Math/Vector4.cs

@@ -942,12 +942,12 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Creates a new <see cref="Vector4"/> that contains a transformation of 2d-vector by the specified <see cref="Matrix"/>.
+		/// Creates a new <see cref="Vector4"/> that contains a transformation of 2d-vector by the specified <see cref="Matrix4x4"/>.
 		/// </summary>
 		/// <param name="value">Source <see cref="Vector2"/>.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <returns>Transformed <see cref="Vector4"/>.</returns>
-		public static Vector4 Transform(Vector2 position, Matrix matrix)
+		public static Vector4 Transform(Vector2 position, Matrix4x4 matrix)
 		{
 			Vector4 result;
 			Transform(ref position, ref matrix, out result);
@@ -955,12 +955,12 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Creates a new <see cref="Vector4"/> that contains a transformation of 3d-vector by the specified <see cref="Matrix"/>.
+		/// Creates a new <see cref="Vector4"/> that contains a transformation of 3d-vector by the specified <see cref="Matrix4x4"/>.
 		/// </summary>
 		/// <param name="value">Source <see cref="Vector3"/>.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <returns>Transformed <see cref="Vector4"/>.</returns>
-		public static Vector4 Transform(Vector3 position, Matrix matrix)
+		public static Vector4 Transform(Vector3 position, Matrix4x4 matrix)
 		{
 			Vector4 result;
 			Transform(ref position, ref matrix, out result);
@@ -968,24 +968,24 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Creates a new <see cref="Vector4"/> that contains a transformation of 4d-vector by the specified <see cref="Matrix"/>.
+		/// Creates a new <see cref="Vector4"/> that contains a transformation of 4d-vector by the specified <see cref="Matrix4x4"/>.
 		/// </summary>
 		/// <param name="value">Source <see cref="Vector4"/>.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <returns>Transformed <see cref="Vector4"/>.</returns>
-		public static Vector4 Transform(Vector4 vector, Matrix matrix)
+		public static Vector4 Transform(Vector4 vector, Matrix4x4 matrix)
 		{
 			Transform(ref vector, ref matrix, out vector);
 			return vector;
 		}
 
 		/// <summary>
-		/// Creates a new <see cref="Vector4"/> that contains a transformation of 2d-vector by the specified <see cref="Matrix"/>.
+		/// Creates a new <see cref="Vector4"/> that contains a transformation of 2d-vector by the specified <see cref="Matrix4x4"/>.
 		/// </summary>
 		/// <param name="value">Source <see cref="Vector2"/>.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <param name="result">Transformed <see cref="Vector4"/> as an output parameter.</param>
-		public static void Transform(ref Vector2 position, ref Matrix matrix, out Vector4 result)
+		public static void Transform(ref Vector2 position, ref Matrix4x4 matrix, out Vector4 result)
 		{
 			result = new Vector4(
 				(position.X * matrix.M11) + (position.Y * matrix.M21) + matrix.M41,
@@ -996,12 +996,12 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Creates a new <see cref="Vector4"/> that contains a transformation of 3d-vector by the specified <see cref="Matrix"/>.
+		/// Creates a new <see cref="Vector4"/> that contains a transformation of 3d-vector by the specified <see cref="Matrix4x4"/>.
 		/// </summary>
 		/// <param name="value">Source <see cref="Vector3"/>.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <param name="result">Transformed <see cref="Vector4"/> as an output parameter.</param>
-		public static void Transform(ref Vector3 position, ref Matrix matrix, out Vector4 result)
+		public static void Transform(ref Vector3 position, ref Matrix4x4 matrix, out Vector4 result)
 		{
 			float x = (
 				(position.X * matrix.M11) +
@@ -1034,12 +1034,12 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Creates a new <see cref="Vector4"/> that contains a transformation of 4d-vector by the specified <see cref="Matrix"/>.
+		/// Creates a new <see cref="Vector4"/> that contains a transformation of 4d-vector by the specified <see cref="Matrix4x4"/>.
 		/// </summary>
 		/// <param name="value">Source <see cref="Vector4"/>.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <param name="result">Transformed <see cref="Vector4"/> as an output parameter.</param>
-		public static void Transform(ref Vector4 vector, ref Matrix matrix, out Vector4 result)
+		public static void Transform(ref Vector4 vector, ref Matrix4x4 matrix, out Vector4 result)
 		{
 			float x = (
 				(vector.X * matrix.M11) +
@@ -1072,14 +1072,14 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Apply transformation on all vectors within array of <see cref="Vector4"/> by the specified <see cref="Matrix"/> and places the results in an another array.
+		/// Apply transformation on all vectors within array of <see cref="Vector4"/> by the specified <see cref="Matrix4x4"/> and places the results in an another array.
 		/// </summary>
 		/// <param name="sourceArray">Source array.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <param name="destinationArray">Destination array.</param>
 		public static void Transform(
 			Vector4[] sourceArray,
-			ref Matrix matrix,
+			ref Matrix4x4 matrix,
 			Vector4[] destinationArray
 		) {
 			if (sourceArray == null)
@@ -1107,18 +1107,18 @@ namespace MoonWorks.Math
 		}
 
 		/// <summary>
-		/// Apply transformation on vectors within array of <see cref="Vector4"/> by the specified <see cref="Matrix"/> and places the results in an another array.
+		/// Apply transformation on vectors within array of <see cref="Vector4"/> by the specified <see cref="Matrix4x4"/> and places the results in an another array.
 		/// </summary>
 		/// <param name="sourceArray">Source array.</param>
 		/// <param name="sourceIndex">The starting index of transformation in the source array.</param>
-		/// <param name="matrix">The transformation <see cref="Matrix"/>.</param>
+		/// <param name="matrix">The transformation <see cref="Matrix4x4"/>.</param>
 		/// <param name="destinationArray">Destination array.</param>
 		/// <param name="destinationIndex">The starting index in the destination array, where the first <see cref="Vector4"/> should be written.</param>
 		/// <param name="length">The number of vectors to be transformed.</param>
 		public static void Transform(
 			Vector4[] sourceArray,
 			int sourceIndex,
-			ref Matrix matrix,
+			ref Matrix4x4 matrix,
 			Vector4[] destinationArray,
 			int destinationIndex,
 			int length