MirBSD manpage: glLoadMatrix(3), glLoadMatrixd(3), glLoadMatrixf(3)

GLLOADMATRIX(3G)    UNIX Programmer's Manual     GLLOADMATRIX(3G)


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


     void glLoadMatrixd( const GLdouble *m )
     void glLoadMatrixf( const GLfloat *m )


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


     glLoadMatrix replaces the current matrix with the one whose
     elements are specified by m. The current matrix is the pro-
     jection matrix, modelview matrix, or texture matrix, depend-
     ing on the current matrix mode (see glMatrixMode).

     The current matrix, M, defines a transformation of coordi-
     nates. 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(v) = | m[0]
                |m[2]    m[4]
                |m[3]   m[5]
                        m[6]    m[8]
                        m[7]    m[9]
                               m[10]    m[12] |
                               m[11]   m[13]  |     |
                                       m[14]  |     |
                                       m[15]  |  x  | v[0] |
                                              |     | v[1] |
                                              |     | v[2] |
                                                    | v[3] |

     Where ``x'' denotes matrix multiplication.

     Projection and texture transformations are similarly


     While the elements of the matrix may be specified with sin-
     gle 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 exe-
     cuted between the execution of glBegin and the corresponding
     execution of glEnd.

MirBSD #10-current     Printed 2021-12-07                       1

GLLOADMATRIX(3G)    UNIX Programmer's Manual     GLLOADMATRIX(3G)


     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(3G), glMatrixMode(3G), glMultMatrix(3G),

MirBSD #10-current     Printed 2021-12-07                       2

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