The glMultMatrixd and glMultMatrixf functions multiply the current matrix by an arbitrary matrix.
void glMultMatrixd(
const GLdouble *m
);
void glMultMatrixf(
const GLfloat *m
);
The glMultMatrix function multiplies the current matrix by the one specified in m. That is, if M is the current matrix and T is the matrix passed to glMultMatrix, then M is replaced with M · T.
The current matrix is the projection matrix, modelview matrix, or texture matrix, determined by the current matrix mode (see glMatrixMode).
The m parameter points to a 4x4 matrix of single- or double-precision floating-point values stored in column-major order. That is, the matrix is stored as:
The following functions retrieve information related to glMultMatrix:
glGet with argument GL_MATRIX_MODE
glGet with argument GL_MODELVIEW_MATRIX
glGet with argument GL_PROJECTION_MATRIX
glGet with argument GL_TEXTURE_MATRIX
The following are the error codes generated and their conditions.
| Error Code | Condition |
|---|---|
| GL_INVALID_OPERATION | glMultMatrix was called between a call to glBegin and the corresponding call to glEnd. |
Windows NT: Use version 3.5 and later.
Windows: Use Windows 95 and later.
Windows CE: Unsupported.
Header: Declared in gl.h.
Import Library: Link with opengl32.lib.
glBegin, glEnd, glLoadIdentity, glLoadMatrix, glMatrixMode, glPushMatrix