glScale

GLSCALE(3G)							  GLSCALE(3G)



NAME
       glScaled,  glScalef - multiply the current matrix by a general scaling
       matrix


C SPECIFICATION
       void glScaled( GLdouble x,
		      GLdouble y,
		      GLdouble z )
       void glScalef( GLfloat x,
		      GLfloat y,
		      GLfloat z )


PARAMETERS
       x, y, z
	      Specify scale factors along the x, y, and z axes, respectively.

DESCRIPTION
       glScale produces a nonuniform scaling along the x, y, and z axes.  The
       three parameters indicate the desired scale factor along each  of  the
       three axes.

       The  current  matrix  (see  glMatrixMode)  is multiplied by this scale
       matrix, and the product replaces the current matrix as if glScale were
       called with the following matrix as its argument:

				      x 0 0 0



















				      0 y 0 0









				     (	     )









				      0 0 z 0



















				      0 0 0 1

       If  the	matrix	mode  is  either  GL_MODELVIEW	or GL_PROJECTION, all
       objects drawn after glScale is called are scaled.

       Use glPushMatrix and glPopMatrix to  save  and  restore	the  unscaled
       coordinate system.

NOTES
       If  scale factors other than 1 are applied to the modelview matrix and
       lighting is enabled, lighting often  appears  wrong.   In  that	case,
       enable automatic normalization of normals by calling glEnable with the
       argument GL_NORMALIZE.

ERRORS
       GL_INVALID_OPERATION is generated if glScale 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

SEE ALSO
       glMatrixMode(3G),  glMultMatrix(3G),  glPushMatrix(3G),	glRotate(3G),
       glTranslate(3G)



								  GLSCALE(3G)