glMultMatrix — multiply the current matrix with the specified matrix
void glMultMatrixd( | const GLdouble * | m) ; |
void glMultMatrixf( | const GLfloat * | m) ; |
m
Points to 16 consecutive values that are used as the elements of
a
glMultMatrix
multiplies the current matrix with the one specified using m
, and
replaces the current matrix with the product.
The current matrix is determined by the current matrix mode (see glMatrixMode). It is either the projection matrix, modelview matrix, or the texture matrix.
If the current matrix is
Calling glMultMatrix
with an argument of
Where
While the elements of the matrix may be specified with single or double precision, the GL may store or operate on these values in less-than-single precision.
In many computer languages,
glMultMatrix
is called with a translation matrix,
the translation is done directly on the coordinates to be transformed,
while the rotation is done on the results of that translation.
GL_INVALID_OPERATION
is generated if glMultMatrix
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, glLoadMatrix, glLoadTransposeMatrix, glMatrixMode, glMultTransposeMatrix, glPushMatrix
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