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:

eqn not supported

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.

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.

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