Package org.lwjgl.util.vector

Class Matrix4f

java.lang.Object
org.lwjgl.util.vector.Matrix
org.lwjgl.util.vector.Matrix4f
All Implemented Interfaces:
Serializable
public class Matrix4f extends Matrix implements Serializable
Holds a 4x4 float matrix.
Author:
foo
See Also:

  • Field Details

    • m00

      public float m00

    • m01

      public float m01

    • m02

      public float m02

    • m03

      public float m03

    • m10

      public float m10

    • m11

      public float m11

    • m12

      public float m12

    • m13

      public float m13

    • m20

      public float m20

    • m21

      public float m21

    • m22

      public float m22

    • m23

      public float m23

    • m30

      public float m30

    • m31

      public float m31

    • m32

      public float m32

    • m33

      public float m33

  • Constructor Details

    • Matrix4f

      public Matrix4f()
      Construct a new matrix, initialized to the identity.

    • Matrix4f

      public Matrix4f(Matrix4f src)

  • Method Details

    • toString

      public String toString()
      Returns a string representation of this matrix
      Overrides:
      toString in class Object

    • setIdentity

      public Matrix setIdentity()
      Set this matrix to be the identity matrix.
      Specified by:
      setIdentity in class Matrix
      Returns:
      this

    • setIdentity

      public static Matrix4f setIdentity(Matrix4f m)
      Set the given matrix to be the identity matrix.
      Parameters:
      m - The matrix to set to the identity
      Returns:
      m

    • setZero

      public Matrix setZero()
      Set this matrix to 0.
      Specified by:
      setZero in class Matrix
      Returns:
      this

    • setZero

      public static Matrix4f setZero(Matrix4f m)
      Set the given matrix to 0.
      Parameters:
      m - The matrix to set to 0
      Returns:
      m

    • load

      public Matrix4f load(Matrix4f src)
      Load from another matrix4f
      Parameters:
      src - The source matrix
      Returns:
      this

    • load

      public static Matrix4f load(Matrix4f src, Matrix4f dest)
      Copy the source matrix to the destination matrix
      Parameters:
      src - The source matrix
      dest - The destination matrix, or null of a new one is to be created
      Returns:
      The copied matrix

    • load

      public Matrix load(FloatBuffer buf)
      Load from a float buffer. The buffer stores the matrix in column major (OpenGL) order.
      Specified by:
      load in class Matrix
      Parameters:
      buf - A float buffer to read from
      Returns:
      this

    • loadTranspose

      public Matrix loadTranspose(FloatBuffer buf)
      Load from a float buffer. The buffer stores the matrix in row major (maths) order.
      Specified by:
      loadTranspose in class Matrix
      Parameters:
      buf - A float buffer to read from
      Returns:
      this

    • store

      public Matrix store(FloatBuffer buf)
      Store this matrix in a float buffer. The matrix is stored in column major (openGL) order.
      Specified by:
      store in class Matrix
      Parameters:
      buf - The buffer to store this matrix in
      Returns:
      this

    • storeTranspose

      public Matrix storeTranspose(FloatBuffer buf)
      Store this matrix in a float buffer. The matrix is stored in row major (maths) order.
      Specified by:
      storeTranspose in class Matrix
      Parameters:
      buf - The buffer to store this matrix in
      Returns:
      this

    • store3f

      public Matrix store3f(FloatBuffer buf)
      Store the rotation portion of this matrix in a float buffer. The matrix is stored in column major (openGL) order.
      Parameters:
      buf - The buffer to store this matrix in

    • add

      public static Matrix4f add(Matrix4f left, Matrix4f right, Matrix4f dest)
      Add two matrices together and place the result in a third matrix.
      Parameters:
      left - The left source matrix
      right - The right source matrix
      dest - The destination matrix, or null if a new one is to be created
      Returns:
      the destination matrix

    • sub

      public static Matrix4f sub(Matrix4f left, Matrix4f right, Matrix4f dest)
      Subtract the right matrix from the left and place the result in a third matrix.
      Parameters:
      left - The left source matrix
      right - The right source matrix
      dest - The destination matrix, or null if a new one is to be created
      Returns:
      the destination matrix

    • mul

      public static Matrix4f mul(Matrix4f left, Matrix4f right, Matrix4f dest)
      Multiply the right matrix by the left and place the result in a third matrix.
      Parameters:
      left - The left source matrix
      right - The right source matrix
      dest - The destination matrix, or null if a new one is to be created
      Returns:
      the destination matrix

    • transform

      public static Vector4f transform(Matrix4f left, Vector4f right, Vector4f dest)
      Transform a Vector by a matrix and return the result in a destination vector.
      Parameters:
      left - The left matrix
      right - The right vector
      dest - The destination vector, or null if a new one is to be created
      Returns:
      the destination vector

    • transpose

      public Matrix transpose()
      Transpose this matrix
      Specified by:
      transpose in class Matrix
      Returns:
      this

    • translate

      public Matrix4f translate(Vector2f vec)
      Translate this matrix
      Parameters:
      vec - The vector to translate by
      Returns:
      this

    • translate

      public Matrix4f translate(Vector3f vec)
      Translate this matrix
      Parameters:
      vec - The vector to translate by
      Returns:
      this

    • scale

      public Matrix4f scale(Vector3f vec)
      Scales this matrix
      Parameters:
      vec - The vector to scale by
      Returns:
      this

    • scale

      public static Matrix4f scale(Vector3f vec, Matrix4f src, Matrix4f dest)
      Scales the source matrix and put the result in the destination matrix
      Parameters:
      vec - The vector to scale by
      src - The source matrix
      dest - The destination matrix, or null if a new matrix is to be created
      Returns:
      The scaled matrix

    • rotate

      public Matrix4f rotate(float angle, Vector3f axis)
      Rotates the matrix around the given axis the specified angle
      Parameters:
      angle - the angle, in radians.
      axis - The vector representing the rotation axis. Must be normalized.
      Returns:
      this

    • rotate

      public Matrix4f rotate(float angle, Vector3f axis, Matrix4f dest)
      Rotates the matrix around the given axis the specified angle
      Parameters:
      angle - the angle, in radians.
      axis - The vector representing the rotation axis. Must be normalized.
      dest - The matrix to put the result, or null if a new matrix is to be created
      Returns:
      The rotated matrix

    • rotate

      public static Matrix4f rotate(float angle, Vector3f axis, Matrix4f src, Matrix4f dest)
      Rotates the source matrix around the given axis the specified angle and put the result in the destination matrix.
      Parameters:
      angle - the angle, in radians.
      axis - The vector representing the rotation axis. Must be normalized.
      src - The matrix to rotate
      dest - The matrix to put the result, or null if a new matrix is to be created
      Returns:
      The rotated matrix

    • translate

      public Matrix4f translate(Vector3f vec, Matrix4f dest)
      Translate this matrix and stash the result in another matrix
      Parameters:
      vec - The vector to translate by
      dest - The destination matrix or null if a new matrix is to be created
      Returns:
      the translated matrix

    • translate

      public static Matrix4f translate(Vector3f vec, Matrix4f src, Matrix4f dest)
      Translate the source matrix and stash the result in the destination matrix
      Parameters:
      vec - The vector to translate by
      src - The source matrix
      dest - The destination matrix or null if a new matrix is to be created
      Returns:
      The translated matrix

    • translate

      public Matrix4f translate(Vector2f vec, Matrix4f dest)
      Translate this matrix and stash the result in another matrix
      Parameters:
      vec - The vector to translate by
      dest - The destination matrix or null if a new matrix is to be created
      Returns:
      the translated matrix

    • translate

      public static Matrix4f translate(Vector2f vec, Matrix4f src, Matrix4f dest)
      Translate the source matrix and stash the result in the destination matrix
      Parameters:
      vec - The vector to translate by
      src - The source matrix
      dest - The destination matrix or null if a new matrix is to be created
      Returns:
      The translated matrix

    • transpose

      public Matrix4f transpose(Matrix4f dest)
      Transpose this matrix and place the result in another matrix
      Parameters:
      dest - The destination matrix or null if a new matrix is to be created
      Returns:
      the transposed matrix

    • transpose

      public static Matrix4f transpose(Matrix4f src, Matrix4f dest)
      Transpose the source matrix and place the result in the destination matrix
      Parameters:
      src - The source matrix
      dest - The destination matrix or null if a new matrix is to be created
      Returns:
      the transposed matrix

    • determinant

      public float determinant()
      Specified by:
      determinant in class Matrix
      Returns:
      the determinant of the matrix

    • invert

      public Matrix invert()
      Invert this matrix
      Specified by:
      invert in class Matrix
      Returns:
      this if successful, null otherwise

    • invert

      public static Matrix4f invert(Matrix4f src, Matrix4f dest)
      Invert the source matrix and put the result in the destination
      Parameters:
      src - The source matrix
      dest - The destination matrix, or null if a new matrix is to be created
      Returns:
      The inverted matrix if successful, null otherwise

    • negate

      public Matrix negate()
      Negate this matrix
      Specified by:
      negate in class Matrix
      Returns:
      this

    • negate

      public Matrix4f negate(Matrix4f dest)
      Negate this matrix and place the result in a destination matrix.
      Parameters:
      dest - The destination matrix, or null if a new matrix is to be created
      Returns:
      the negated matrix

    • negate

      public static Matrix4f negate(Matrix4f src, Matrix4f dest)
      Negate this matrix and place the result in a destination matrix.
      Parameters:
      src - The source matrix
      dest - The destination matrix, or null if a new matrix is to be created
      Returns:
      The negated matrix