glRotate

glRotate

NAME

glRotated, glRotatef -- multiply the current matrix by a rotation matrix

C SPECIFICATION

void glRotated(GLdouble angle,

GLdouble x,

GLdouble y,

GLdouble z)

void glRotatef(GLfloat angle,

GLfloat x,

GLfloat y,

GLfloat z)

PARAMETERS

angle

Specifies the angle of rotation, in degrees.

x, y, z

Specify the x, y, and z coordinates of a vector, respectively.

DESCRIPTION

glRotate computes a matrix that performs a counterclockwise rotation of angle degrees about the vector from the origin through the point (x, y, z).

The current matrix (see glMatrixMode) is multiplied by this rotation matrix, with the product replacing the current matrix. That is, if M is the current matrix and R is the rotation matrix, then M is replaced with M * R.

If the matrix mode is either GL_MODELVIEW or GL_PROJECTION, all objects drawn after glRotate is called are rotated. Use glPushMatrix and glPopMatrix to save and restore the unrotated coordinate system.

ERRORS

GL_INVALID_OPERATION is generated if glRotate is called between a call to glBegin and the corresponding call to glEnd.