/// <summary>
/// <para>Returns the upper-left 3x3 section of a 4x4 matrix.</para>
/// <para>Original signature is 'GLKMatrix3 GLKMatrix4GetMatrix3 ( GLKMatrix4 matrix );'</para>
/// <para>Available in OS X v10.8 and later.</para>
/// </summary>
/// <param name="matrix">MISSING</param>
/// <returns>A new 3x3 matrix.</returns>
public static GLKMatrix3 GetMatrix3 (GLKMatrix4 matrix)
{
GLKMatrix3 m = new GLKMatrix3 (matrix [0], matrix [1], matrix [2],
matrix [4], matrix [5], matrix [6],
matrix [8], matrix [9], matrix [10]);
return m;
}
/// <summary>
/// <para>Retrieves a column from a 3x3 matrix.</para>
/// <para>Original signature is 'GLKVector3 GLKMatrix3GetColumn ( GLKMatrix3 matrix, int column );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="matrix">MISSING</param>
/// <param name="column">MISSING</param>
/// <returns>A vector representing the column retrieved from the matrix.</returns>
public static GLKVector3 GetColumn (GLKMatrix3 matrix, int column)
{
GLKVector3 v = new GLKVector3 (
matrix [column * 3 + 0],
matrix [column * 3 + 1],
matrix [column * 3 + 2]
);
return v;
}
/// <summary>
/// <para>Returns a new 3x3 matrix created by performing a component-wise addition of two matrices.</para>
/// <para>Original signature is 'GLKMatrix3 GLKMatrix3Add ( GLKMatrix3 matrixLeft, GLKMatrix3 matrixRight );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="matrixLeft">MISSING</param>
/// <param name="matrixRight">MISSING</param>
/// <returns>A new matrix whose components each represent the sum of the components found in the same positions of the two source matrices.</returns>
public static GLKMatrix3 Add (GLKMatrix3 matrixLeft, GLKMatrix3 matrixRight)
{
GLKMatrix3 m = new GLKMatrix3 ();
m [0] = matrixLeft [0] + matrixRight [0];
m [1] = matrixLeft [1] + matrixRight [1];
m [2] = matrixLeft [2] + matrixRight [2];
m [3] = matrixLeft [3] + matrixRight [3];
m [4] = matrixLeft [4] + matrixRight [4];
m [5] = matrixLeft [5] + matrixRight [5];
m [6] = matrixLeft [6] + matrixRight [6];
m [7] = matrixLeft [7] + matrixRight [7];
m [8] = matrixLeft [8] + matrixRight [8];
return m;
}
/// <summary>
/// <para>Returns a new 3x3 matrix created by performing a component-wise subtraction of two matrices.</para>
/// <para>Original signature is 'GLKMatrix3 GLKMatrix3Subtract ( GLKMatrix3 matrixLeft, GLKMatrix3 matrixRight );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="matrixLeft">MISSING</param>
/// <param name="matrixRight">MISSING</param>
/// <returns>A new matrix whose components each represent the difference between the components found in the same positions of the two source matrices.</returns>
public static GLKMatrix3 Subtract (GLKMatrix3 matrixLeft, GLKMatrix3 matrixRight)
{
GLKMatrix3 m = new GLKMatrix3 ();
m [0] = matrixLeft [0] - matrixRight [0];
m [1] = matrixLeft [1] - matrixRight [1];
m [2] = matrixLeft [2] - matrixRight [2];
m [3] = matrixLeft [3] - matrixRight [3];
m [4] = matrixLeft [4] - matrixRight [4];
m [5] = matrixLeft [5] - matrixRight [5];
m [6] = matrixLeft [6] - matrixRight [6];
m [7] = matrixLeft [7] - matrixRight [7];
m [8] = matrixLeft [8] - matrixRight [8];
return m;
}
/// <summary>
/// <para>Returns a new 3x3 matrix with one column replaced by a new vector.</para>
/// <para>Original signature is 'GLKMatrix3 GLKMatrix3SetColumn ( GLKMatrix3 matrix, int column, GLKVector3 vector );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="matrix">MISSING</param>
/// <param name="column">MISSING</param>
/// <param name="vector">MISSING</param>
/// <returns>A new matrix.</returns>
public static GLKMatrix3 SetColumn (GLKMatrix3 matrix, int column, GLKVector3 vector)
{
matrix [column * 3 + 0] = vector.x;
matrix [column * 3 + 1] = vector.y;
matrix [column * 3 + 2] = vector.z;
return matrix;
}
/// <summary>
/// <para>Returns a new 3x3 matrix with one row replaced by a new vector.</para>
/// <para>Original signature is 'GLKMatrix3 GLKMatrix3SetRow ( GLKMatrix3 matrix, int row, GLKVector3 vector );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="matrix">MISSING</param>
/// <param name="row">MISSING</param>
/// <param name="vector">MISSING</param>
/// <returns>A new matrix.</returns>
public static GLKMatrix3 SetRow (GLKMatrix3 matrix, int row, GLKVector3 vector)
{
matrix [row] = vector.x;
matrix [row + 3] = vector.y;
matrix [row + 6] = vector.z;
return matrix;
}
/// <summary>
/// <para>Returns a new 3x3 matrix created by concatenating a matrix with a scaling transform.</para>
/// <para>Original signature is 'GLKMatrix3 GLKMatrix3Scale ( GLKMatrix3 matrix, float sx, float sy, float sz );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="matrix">MISSING</param>
/// <param name="sx">MISSING</param>
/// <param name="sy">MISSING</param>
/// <param name="sz">MISSING</param>
/// <returns>A new matrix.</returns>
public static GLKMatrix3 Scale (GLKMatrix3 matrix, float sx, float sy, float sz)
{
GLKMatrix3 m = Identity;
m [0] = sx;
m [4] = sy;
m [8] = sz;
return m;
}
/// <summary>
/// <para>Returns a new 3x3 matrix created by concatenating a matrix with a scaling transform defined by a vector.</para>
/// <para>Original signature is 'GLKMatrix3 GLKMatrix3ScaleWithVector4 ( GLKMatrix3 matrix, GLKVector4 scaleVector );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="matrix">MISSING</param>
/// <param name="scaleVector">MISSING</param>
/// <returns>A new matrix.</returns>
public static GLKMatrix3 ScaleWithVector4 (GLKMatrix3 matrix, GLKVector4 scaleVector)
{
GLKMatrix3 m = new GLKMatrix3 (matrix [0] * scaleVector.x, matrix [1] * scaleVector.x, matrix [2] * scaleVector.x,
matrix [3] * scaleVector.y, matrix [4] * scaleVector.y, matrix [5] * scaleVector.y,
matrix [6] * scaleVector.z, matrix [7] * scaleVector.z, matrix [8] * scaleVector.z);
return m;
}
/// <summary>
/// <para>Returns the upper-left 2x2 section of a 3x3 matrix.</para>
/// <para>Original signature is 'GLKMatrix2 GLKMatrix3GetMatrix2 ( GLKMatrix3 matrix );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="matrix">MISSING</param>
/// <returns>A new 2x2 matrix.</returns>
public static GLKMatrix2 GetMatrix2 (GLKMatrix3 matrix)
{
GLKMatrix2 m = new GLKMatrix2 (matrix [0], matrix [1], matrix [3], matrix [4]);
return m;
}
/// <summary>
/// <para>Returns a 3x3 matrix that performs a rotation based on a quaternion.</para>
/// <para>Original signature is 'GLKMatrix3 GLKMatrix3MakeWithQuaternion ( GLKQuaternion quaternion );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="quaternion">MISSING</param>
/// <returns>A new matrix that provides an equivalent rotation to that stored in the quaternion.</returns>
public static GLKMatrix3 MakeWithQuaternion (GLKQuaternion quaternion)
{
quaternion = GLKQuaternion.Normalize (quaternion);
float x = quaternion.x;
float y = quaternion.y;
float z = quaternion.z;
float w = quaternion.w;
float _2x = x + x;
float _2y = y + y;
float _2z = z + z;
float _2w = w + w;
GLKMatrix3 m = new GLKMatrix3 (1.0f - _2y * y - _2z * z,
_2x * y + _2w * z,
_2x * z - _2w * y,
_2x * y - _2w * z,
1.0f - _2x * x - _2z * z,
_2y * z + _2w * x,
_2x * z + _2w * y,
_2y * z - _2w * x,
1.0f - _2x * x - _2y * y);
return m;
}
/// <summary>
/// <para>Returns a new 3x3 matrix created by concatenating a matrix with a rotation around a vector.</para>
/// <para>Original signature is 'GLKMatrix3 GLKMatrix3Rotate ( GLKMatrix3 matrix, float radians, float x, float y, float z );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="matrix">MISSING</param>
/// <param name="radians">MISSING</param>
/// <param name="x">MISSING</param>
/// <param name="y">MISSING</param>
/// <param name="z">MISSING</param>
/// <returns>A new matrix.</returns>
public static GLKMatrix3 Rotate (GLKMatrix3 matrix, float radians, float x, float y, float z)
{
GLKMatrix3 rm = MakeRotation (radians, x, y, z);
return Multiply (matrix, rm);
}
/// <summary>
/// <para>Returns a 3x3 transposed matrix created from individual component values.</para>
/// <para>Original signature is 'GLKMatrix3 GLKMatrix3MakeAndTranspose ( float m00, float m01, float m02, float m10, float m11, float m12, float m20, float m21, float m22 );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="m00">MISSING</param>
/// <param name="m01">MISSING</param>
/// <param name="m02">MISSING</param>
/// <param name="m10">MISSING</param>
/// <param name="m11">MISSING</param>
/// <param name="m12">MISSING</param>
/// <param name="m20">MISSING</param>
/// <param name="m21">MISSING</param>
/// <param name="m22">MISSING</param>
/// <returns>A new matrix.</returns>
public static GLKMatrix3 MakeAndTranspose (float m00, float m01, float m02, float m10, float m11, float m12, float m20, float m21, float m22)
{
GLKMatrix3 m = new GLKMatrix3 (m00, m10, m20, m01, m11, m21, m02, m12, m22);
return m;
}
/// <summary>
/// <para>Multiplies a 3x3 matrix by a vector.</para>
/// <para>Original signature is 'GLKVector3 GLKMatrix3MultiplyVector3 ( GLKMatrix3 matrixLeft, GLKVector3 vectorRight );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="matrixLeft">MISSING</param>
/// <param name="vectorRight">MISSING</param>
/// <returns>A new vector created by multiplying the matrix by the vector.</returns>
public static GLKVector3 MultiplyVector3 (GLKMatrix3 matrixLeft, GLKVector3 vectorRight)
{
GLKVector3 v = new GLKVector3 (matrixLeft [0] * vectorRight.x + matrixLeft [3] * vectorRight.y + matrixLeft [6] * vectorRight.z,
matrixLeft [1] * vectorRight.x + matrixLeft [4] * vectorRight.y + matrixLeft [7] * vectorRight.z,
matrixLeft [2] * vectorRight.x + matrixLeft [5] * vectorRight.y + matrixLeft [8] * vectorRight.z);
return v;
}
/// <summary>
/// <para>Multiplies a 3x3 matrix by an array of vectors.</para>
/// <para>Original signature is 'void GLKMatrix3MultiplyVector3Array ( GLKMatrix3 matrix, GLKVector3 *vectors, size_t vectorCount );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="matrix">MISSING</param>
/// <param name="vectors">MISSING</param>
/// <param name="vectorCount">MISSING</param>
public static void MultiplyVector3Array (GLKMatrix3 matrix, IntPtr vectors, NSUInteger vectorCount)
{
throw new NotImplementedException ();
}
/// <summary>
/// <para>Returns the product of two matrices.</para>
/// <para>Original signature is 'GLKMatrix3 GLKMatrix3Multiply ( GLKMatrix3 matrixLeft, GLKMatrix3 matrixRight );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="matrixLeft">MISSING</param>
/// <param name="matrixRight">MISSING</param>
/// <returns>A new matrix.</returns>
public static GLKMatrix3 Multiply (GLKMatrix3 matrixLeft, GLKMatrix3 matrixRight)
{
GLKMatrix3 m = new GLKMatrix3 ();
m [0] = matrixLeft [0] * matrixRight [0] + matrixLeft [3] * matrixRight [1] + matrixLeft [6] * matrixRight [2];
m [3] = matrixLeft [0] * matrixRight [3] + matrixLeft [3] * matrixRight [4] + matrixLeft [6] * matrixRight [5];
m [6] = matrixLeft [0] * matrixRight [6] + matrixLeft [3] * matrixRight [7] + matrixLeft [6] * matrixRight [8];
m [1] = matrixLeft [1] * matrixRight [0] + matrixLeft [4] * matrixRight [1] + matrixLeft [7] * matrixRight [2];
m [4] = matrixLeft [1] * matrixRight [3] + matrixLeft [4] * matrixRight [4] + matrixLeft [7] * matrixRight [5];
m [7] = matrixLeft [1] * matrixRight [6] + matrixLeft [4] * matrixRight [7] + matrixLeft [7] * matrixRight [8];
m [2] = matrixLeft [2] * matrixRight [0] + matrixLeft [5] * matrixRight [1] + matrixLeft [8] * matrixRight [2];
m [5] = matrixLeft [2] * matrixRight [3] + matrixLeft [5] * matrixRight [4] + matrixLeft [8] * matrixRight [5];
m [8] = matrixLeft [2] * matrixRight [6] + matrixLeft [5] * matrixRight [7] + matrixLeft [8] * matrixRight [8];
return m;
}
/// <summary>
/// <para>Returns a 3x3 matrix that performs a rotation around the positive z-axis.</para>
/// <para>Original signature is 'GLKMatrix3 GLKMatrix3MakeZRotation ( float radians );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="radians">MISSING</param>
/// <returns>A new rotation matrix.</returns>
public static GLKMatrix3 MakeZRotation (float radians)
{
float cos = (float)Math.Cos (radians);
float sin = (float)Math.Sin (radians);
GLKMatrix3 m = new GLKMatrix3 (cos, sin, 0.0f, -sin, cos, 0.0f, 0.0f, 0.0f, 1.0f);
return m;
}
/// <summary>
/// <para>Returns a 3x3 matrix created from three row vectors.</para>
/// <para>Original signature is 'GLKMatrix3 GLKMatrix3MakeWithRows ( GLKVector3 row0, GLKVector3 row1, GLKVector3 row2 );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="row0">MISSING</param>
/// <param name="row1">MISSING</param>
/// <param name="row2">MISSING</param>
/// <returns>A new matrix.</returns>
public static GLKMatrix3 MakeWithRows (GLKVector3 row0, GLKVector3 row1, GLKVector3 row2)
{
GLKMatrix3 m = new GLKMatrix3 (row0.x, row1.x, row2.x,
row0.y, row1.y, row2.y,
row0.z, row1.z, row2.z);
return m;
}
/// <summary>
/// <para>Returns the transpose of a matrix.</para>
/// <para>Original signature is 'GLKMatrix3 GLKMatrix3Transpose ( GLKMatrix3 matrix );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="matrix">MISSING</param>
/// <returns>The transpose of the matrix.</returns>
public static GLKMatrix3 Transpose (GLKMatrix3 matrix)
{
GLKMatrix3 m = new GLKMatrix3 (matrix [0], matrix [3], matrix [6],
matrix [1], matrix [4], matrix [7],
matrix [2], matrix [5], matrix [8]);
return m;
}
/// <summary>
/// <para>Returns a new 3x3 matrix created by concatenating a matrix with a rotation around a vector.</para>
/// <para>Original signature is 'GLKMatrix3 GLKMatrix3RotateWithVector4 ( GLKMatrix3 matrix, float radians, GLKVector4 axisVector );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="matrix">MISSING</param>
/// <param name="radians">MISSING</param>
/// <param name="axisVector">MISSING</param>
/// <returns>A new matrix.</returns>
public static GLKMatrix3 RotateWithVector4 (GLKMatrix3 matrix, float radians, GLKVector4 axisVector)
{
GLKMatrix3 rm = MakeRotation (radians, axisVector.x, axisVector.y, axisVector.z);
return Multiply (matrix, rm);
}
/// <summary>
/// <para>Returns a 3x3 matrix that performs a rotation around an arbitrary vector.</para>
/// <para>Original signature is 'GLKMatrix3 GLKMatrix3MakeRotation ( float radians, float x, float y, float z );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="radians">MISSING</param>
/// <param name="x">MISSING</param>
/// <param name="y">MISSING</param>
/// <param name="z">MISSING</param>
/// <returns>A new rotation matrix.</returns>
public static GLKMatrix3 MakeRotation (float radians, float x, float y, float z)
{
GLKVector3 v = GLKVector3.Normalize (GLKVector3.Make (x, y, z));
float cos = (float)Math.Cos (radians);
float cosp = 1.0f - cos;
float sin = (float)Math.Sin (radians);
GLKMatrix3 m = new GLKMatrix3 (cos + cosp * v.x * v.x,
cosp * v.x * v.y + v.z * sin,
cosp * v.x * v.z - v.y * sin,
cosp * v.x * v.y - v.z * sin,
cos + cosp * v.y * v.y,
cosp * v.y * v.z + v.x * sin,
cosp * v.x * v.z + v.y * sin,
cosp * v.y * v.z - v.x * sin,
cos + cosp * v.z * v.z);
return m;
}
/// <summary>
/// <para>Returns a new 3x3 matrix created by concatenating a matrix with a rotation around the z-axis.</para>
/// <para>Original signature is 'GLKMatrix3 GLKMatrix3RotateZ ( GLKMatrix3 matrix, float radians );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="matrix">MISSING</param>
/// <param name="radians">MISSING</param>
/// <returns>A new matrix.</returns>
public static GLKMatrix3 RotateZ (GLKMatrix3 matrix, float radians)
{
GLKMatrix3 rm = MakeZRotation (radians);
return Multiply (matrix, rm);
}
/// <summary>
/// <para>Retrieves a row from a 3x3 matrix.</para>
/// <para>Original signature is 'GLKVector3 GLKMatrix3GetRow ( GLKMatrix3 matrix, int row );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="matrix">MISSING</param>
/// <param name="row">MISSING</param>
/// <returns>A vector representing the row retrieved from the matrix.</returns>
public static GLKVector3 GetRow (GLKMatrix3 matrix, int row)
{
GLKVector3 v = new GLKVector3 (matrix [row], matrix [3 + row], matrix [6 + row]);
return v;
}
/// <summary>
/// <para>Returns a 3x3 matrix created from three column vectors.</para>
/// <para>Original signature is 'GLKMatrix3 GLKMatrix3MakeWithColumns ( GLKVector3 column0, GLKVector3 column1, GLKVector3 column2 );'</para>
/// <para>Available in OS X x0.8 and later.</para>
/// </summary>
/// <param name="column0">MISSING</param>
/// <param name="column1">MISSING</param>
/// <param name="column2">MISSING</param>
/// <returns>A new matrix.</returns>
public static GLKMatrix3 MakeWithColumns (GLKVector3 column0, GLKVector3 column1, GLKVector3 column2)
{
GLKMatrix3 m = new GLKMatrix3 (column0.x, column0.y, column0.z,
column1.x, column1.y, column1.z,
column2.x, column2.y, column2.z);
return m;
}
