Package com.jogamp.opengl.math

Class Matrix4

java.lang.Object
com.jogamp.opengl.math.Matrix4
public class Matrix4 extends Object
Simple float array-backed float 4x4 matrix exposing FloatUtil matrix functionality in an object oriented manner.

Unlike PMVMatrix, this class only represents one single matrix without a complete GLMatrixFunc implementation, allowing this class to be more lightweight.

Implementation is not mature - WIP and subject to change.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Matrix4()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    final float
    determinant()
     
    final float[]
    getMatrix()
     
    final boolean
    invert()
     
    final void
    loadIdentity()
     
    final void
    makeFrustum(float left, float right, float bottom, float top, float zNear, float zFar)
     
    final void
    makeOrtho(float left, float right, float bottom, float top, float zNear, float zFar)
     
    final void
    makePerspective(float fovy_rad, float aspect, float zNear, float zFar)
     
    final void
    multMatrix(float[] m)
    Multiply matrix: [this] = [this] x [m]
    final void
    multMatrix(float[] m, int m_offset)
    Multiply matrix: [this] = [this] x [m]
    final void
    multMatrix(Matrix4 m)
    Multiply matrix: [this] = [this] x [m]
    final void
    multVec(float[] v_in, float[] v_out)
     
    final void
    multVec(float[] v_in, int v_in_offset, float[] v_out, int v_out_offset)
     
    final void
    rotate(float angrad, float x, float y, float z)
     
    final void
    rotate(Quaternion quat)
    Rotate the current matrix with the given Quaternion's rotation matrix representation.
    final void
    scale(float x, float y, float z)
     
    final void
    translate(float x, float y, float z)
     
    final void
    transpose()
     

    Methods inherited from class java.lang.Object

    equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Matrix4

      public Matrix4()

  • Method Details

    • getMatrix

      public final float[] getMatrix()

    • loadIdentity

      public final void loadIdentity()

    • multMatrix

      public final void multMatrix(float[] m, int m_offset)
      Multiply matrix: [this] = [this] x [m]
      Parameters:
      m - 4x4 matrix in column-major order

    • multMatrix

      public final void multMatrix(float[] m)
      Multiply matrix: [this] = [this] x [m]
      Parameters:
      m - 4x4 matrix in column-major order

    • multMatrix

      public final void multMatrix(Matrix4 m)
      Multiply matrix: [this] = [this] x [m]
      Parameters:
      m - 4x4 matrix in column-major order

    • multVec

      public final void multVec(float[] v_in, float[] v_out)
      Parameters:
      v_in - 4-component column-vector
      v_out - this * v_in

    • multVec

      public final void multVec(float[] v_in, int v_in_offset, float[] v_out, int v_out_offset)
      Parameters:
      v_in - 4-component column-vector
      v_out - this * v_in

    • translate

      public final void translate(float x, float y, float z)

    • scale

      public final void scale(float x, float y, float z)

    • rotate

      public final void rotate(float angrad, float x, float y, float z)

    • rotate

      public final void rotate(Quaternion quat)
      Rotate the current matrix with the given Quaternion's rotation matrix representation.

    • transpose

      public final void transpose()

    • determinant

      public final float determinant()

    • invert

      public final boolean invert()

    • makeOrtho

      public final void makeOrtho(float left, float right, float bottom, float top, float zNear, float zFar)

    • makeFrustum

      public final void makeFrustum(float left, float right, float bottom, float top, float zNear, float zFar) throws GLException
      Parameters:
      left -
      right -
      bottom -
      top -
      zNear -
      zFar -
      Throws:
      GLException - if zNear <= 0 or zFar <= zNear or left == right, or bottom == top.
      See Also:

    • makePerspective

      public final void makePerspective(float fovy_rad, float aspect, float zNear, float zFar) throws GLException
      Parameters:
      fovy_rad -
      aspect -
      zNear -
      zFar -
      Throws:
      GLException - if zNear <= 0 or zFar <= zNear
      See Also: