Class PMatrix3D

core/src/processing/core/PMatrix3D.java:43–877

4x4 matrix implementation. Matrices are used to describe a transformation; see PMatrix for a general description. This matrix looks like the following when multiplying a vector (x, y, z, w) in mult(). [m00 m01 m02 m03][x] [m00 x + m01 y + m02 z + m03 w] [x'] [m10 m11 m12 m1

 * resulting point is then (x', y', z').
 */
public final class PMatrix3D implements PMatrix /*, PConstants*/ {

  public float m00, m01, m02, m03;
  public float m10, m11, m12, m13;
  public float m20, m21, m22, m23;
  public float m30, m31, m32, m33;


  // locally allocated version to avoid creating new memory
  protected PMatrix3D inverseCopy;


  public PMatrix3D() {
    reset();
  }


  public PMatrix3D(float m00, float m01, float m02,
                   float m10, float m11, float m12) {
    set(m00, m01, m02, 0,
        m10, m11, m12, 0,
        0,   0,   1,   0,
        0,   0,   0,   1);
  }


  public PMatrix3D(float m00, float m01, float m02, float m03,
                   float m10, float m11, float m12, float m13,
                   float m20, float m21, float m22, float m23,
                   float m30, float m31, float m32, float m33) {
    set(m00, m01, m02, m03,
        m10, m11, m12, m13,
        m20, m21, m22, m23,
        m30, m31, m32, m33);
  }


  public PMatrix3D(PMatrix matrix) {
    set(matrix);
  }


  public void reset() {
    set(1, 0, 0, 0,
        0, 1, 0, 0,
        0, 0, 1, 0,
        0, 0, 0, 1);
  }


  /**
   * Returns a copy of this PMatrix.
   */
  public PMatrix3D get() {
    PMatrix3D outgoing = new PMatrix3D();
    outgoing.set(this);
    return outgoing;
  }