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Table of Contents
glLoadMatrixd, glLoadMatrixf - replace the current matrix with the specified matrix
void glLoadMatrixd( const GLdouble *m
)
void glLoadMatrixf( const GLfloat *m )
eqn not supported
- m
- Specifies a pointer to 16 consecutive values,
which are used as the elements of a $4 ~times~ 4$ 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:
eqn not supported
Where ``$times$'' 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(3G)
, glMatrixMode(3G)
,
glMultMatrix(3G)
, glPushMatrix(3G)
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