glRotate

glRotate produces a rotation of angle degrees around the vector $\left(\mathit{x},\mathit{y},\mathit{z}\right)$ . The current matrix (see glMatrixMode ) is multiplied by a rotation matrix with the product replacing the current matrix, as if glMultMatrix were called with the following matrix as its argument:

Where $\mathit{c}=\mathit{cos}\left(\mathit{angle}\right)$ , $\mathit{s}=\mathit{sin}\left(\mathit{angle}\right)$ , and $\left(\mathit{x},\mathit{y},\mathit{z}\right)=1$ (if not, the GL will normalize this vector).

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.

This rotation follows the right-hand rule, so if the vector $\left(\mathit{x},\mathit{y},\mathit{z}\right)$ points toward the user, the rotation will be counterclockwise.

GL_INVALID_OPERATION is generated if glRotate 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

glMatrixMode , glMultMatrix , glPushMatrix , glScale , glTranslate

Copyright 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/ .