Интерактивная система просмотра системных руководств (man-ов)
glLoadMatrix (3)
>> glLoadMatrix (3) ( Разные man: Библиотечные вызовы )
NAME
glLoadMatrixd, glLoadMatrixf
- replace the current matrix with the specified matrix
C SPECIFICATION
void glLoadMatrixd(
const GLdouble *m )
void glLoadMatrixf(
const GLfloat *m )
delim $$
PARAMETERS
m
Specifies a pointer to 16 consecutive values, which are used as the
elements of a $4 ~times~ 4$ column-major matrix.
DESCRIPTION
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:
Where ``$times$'' denotes matrix multiplication.
Projection and texture transformations are similarly defined.
NOTES
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.
ERRORS
GL_INVALID_OPERATION is generated if glLoadMatrix
is executed between the execution of glBegin
and the corresponding execution of glEnd.
ASSOCIATED GETS
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
