GLLOADMATRIX(3G) GLLOADMATRIX(3G)

glLoadMatrixd, glLoadMatrixf - replace the current matrix with the specified matrix

void glLoadMatrixd( const GLdouble *m )



void glLoadMatrixf( const GLfloat *m )













  

  
Specifies a pointer to 16 consecutive values, which are used as the
      elements of a 4x4 column-major matrix.










glLoadMatrix replaces the current matrix with the one whose
    elements are specified by m. The current matrix is the projection
    matrix, modelview matrix, or texture matrix, depending on the current matrix
    mode (see glMatrixMode).


The current matrix, M, defines a transformation of coordinates.
    For instance, assume M refers to the modelview matrix. If v = (v[0], v[1],
    v[2], v[3]) is the set of object coordinates of a vertex, and m
    points to an array of 16 single- or double-precision floating-point values
    m[0], m[1],. . .,m[15], then the modelview transformation M(v) does the
    following:



  

   m[0] m[4] m[8] m[12] v[0]
  

   m[1] m[5] m[9] m[13] v[1]
  

   M(v) = m[2] m[6] m[10] m[14] X v[2]
  

   m[3] m[7] m[11] m[15] v[3]






Where ``X'' denotes matrix multiplication.


Projection and texture transformations are similarly defined.








While the elements of the matrix may be specified with single or
    double precision, the GL implementation may store or operate on these values
    in less than single precision.








GL_INVALID_OPERATION is generated if glLoadMatrix is
    executed between the execution of glBegin and the corresponding
    execution of glEnd.








glGet with argument GL_MATRIX_MODE
  

  glGet with argument GL_COLOR_MATRIX
  

  glGet with argument GL_MODELVIEW_MATRIX
  

  glGet with argument GL_PROJECTION_MATRIX
  

  glGet with argument GL_TEXTURE_MATRIX








glLoadIdentity, glMatrixMode, glMultMatrix,
    glPushMatrix