/// <summary>
/// This isn't quite a multiply, but the result may be useful in some situations.
/// Multiplies two instances.
/// </summary>
/// <param name="left">The left operand of the multiplication.</param>
/// <param name="right">The right operand of the multiplication.</param>
/// <returns>A new instance that is the result of the multiplication</returns>
public static Matrix4d Mult(Matrix4x3d left, Matrix3x4d right)
{
Matrix4d result;
Mult(ref left, ref right, out result);
return(result);
}
/// <summary>
/// This isn't quite a multiply, but the result may be useful in some situations.
/// Multiplies two instances.
/// </summary>
/// <param name="left">The left operand of the multiplication.</param>
/// <param name="right">The right operand of the multiplication.</param>
/// <param name="result">A new instance that is the result of the multiplication</param>
public static void Mult(ref Matrix4x3d left, ref Matrix3x4d right, out Matrix4d result)
{
double lM11 = left.Row0.X,
lM12 = left.Row0.Y,
lM13 = left.Row0.Z,
lM21 = left.Row1.X,
lM22 = left.Row1.Y,
lM23 = left.Row1.Z,
lM31 = left.Row2.X,
lM32 = left.Row2.Y,
lM33 = left.Row2.Z,
lM41 = left.Row3.X,
lM42 = left.Row3.Y,
lM43 = left.Row3.Z,
rM11 = right.Row0.X,
rM12 = right.Row0.Y,
rM13 = right.Row0.Z,
rM14 = right.Row0.W,
rM21 = right.Row1.X,
rM22 = right.Row1.Y,
rM23 = right.Row1.Z,
rM24 = right.Row1.W,
rM31 = right.Row2.X,
rM32 = right.Row2.Y,
rM33 = right.Row2.Z,
rM34 = right.Row2.W;
result.Row0.X = lM11 * rM11 + lM12 * rM21 + lM13 * rM31;
result.Row0.Y = lM11 * rM12 + lM12 * rM22 + lM13 * rM32;
result.Row0.Z = lM11 * rM13 + lM12 * rM23 + lM13 * rM33;
result.Row0.W = lM11 * rM14 + lM12 * rM24 + lM13 * rM34;
result.Row1.X = lM21 * rM11 + lM22 * rM21 + lM23 * rM31;
result.Row1.Y = lM21 * rM12 + lM22 * rM22 + lM23 * rM32;
result.Row1.Z = lM21 * rM13 + lM22 * rM23 + lM23 * rM33;
result.Row1.W = lM21 * rM14 + lM22 * rM24 + lM23 * rM34;
result.Row2.X = lM31 * rM11 + lM32 * rM21 + lM33 * rM31;
result.Row2.Y = lM31 * rM12 + lM32 * rM22 + lM33 * rM32;
result.Row2.Z = lM31 * rM13 + lM32 * rM23 + lM33 * rM33;
result.Row2.W = lM31 * rM14 + lM32 * rM24 + lM33 * rM34;
result.Row3.X = lM41 * rM11 + lM42 * rM21 + lM43 * rM31;
result.Row3.Y = lM41 * rM12 + lM42 * rM22 + lM43 * rM32;
result.Row3.Z = lM41 * rM13 + lM42 * rM23 + lM43 * rM33;
result.Row3.W = lM41 * rM14 + lM42 * rM24 + lM43 * rM34;
}
/// <summary>
/// Calculate the transpose of the given matrix
/// </summary>
/// <param name="mat">The matrix to transpose</param>
/// <param name="result">The result of the calculation</param>
public static void Transpose(ref Matrix4x3d mat, out Matrix3x4d result)
{
result.Row0 = mat.Column0;
result.Row1 = mat.Column1;
result.Row2 = mat.Column2;
}
