void gluQuadricNormals( GLUquadric* quad,
GLenum normal )
Specifes the quadrics object (created with gluNewQuadric).
Specifies the desired type of normals. Valid values are GLU_NONE, GLU_FLAT, and GLU_SMOOTH.
gluQuadricNormals specifies what kind of normals are desired for quadrics rendered with quad. The legal values are as follows:
No normals are generated.
One normal is generated for every facet of a quadric.
One normal is generated for every vertex of a quadric. This is the initial value.
gluNewQuadric(3G), gluQuadricDrawStyle(3G), gluQuadricOrientation(3G), gluQuadricTexture(3G)
gluNewQuadric.3G(3), gluQuadricDrawStyle.3G(3), gluQuadricOrientation.3G(3), gluQuadricTexture.3G(3).