NAME
	  glGetMaterialfv, glGetMaterialiv - return material
	  parameters


     C SPECIFICATION
	  void glGetMaterialfv(	GLenum face,
				GLenum pname,
				GLfloat	*params	)
	  void glGetMaterialiv(	GLenum face,
				GLenum pname,
				GLint *params )


     PARAMETERS
	  face	  Specifies which of the two materials is being
		  queried.  GL_FRONT or	GL_BACK	are accepted,
		  representing the front and back materials,
		  respectively.

	  pname	  Specifies the	material parameter to return.
		  GL_AMBIENT, GL_DIFFUSE, GL_SPECULAR, GL_EMISSION,
		  GL_SHININESS,	and GL_COLOR_INDEXES are accepted.

	  params  Returns the requested	data.

     DESCRIPTION
	  glGetMaterial	returns	in params the value or values of
	  parameter pname of material face. Six	parameters are
	  defined:

	  GL_AMBIENT		params returns four integer or
				floating-point values representing the
				ambient	reflectance of the material.
				Integer	values,	when requested,	are
				linearly mapped	from the internal
				floating-point representation such
				that 1.0 maps to the most positive
				representable integer value, and -1.0
				maps to	the most negative
				representable integer value.  If the
				internal value is outside the range
				[-1, 1], the corresponding integer
				return value is	undefined. The initial
				value is (0.2, 0.2, 0.2, 1.0)

	  GL_DIFFUSE		params returns four integer or
				floating-point values representing the
				diffuse	reflectance of the material.
				Integer	values,	when requested,	are
				linearly mapped	from the internal
				floating-point representation such
				that 1.0 maps to the most positive
				representable integer value, and -1.0
				maps to	the most negative
				representable integer value.  If the
				internal value is outside the range
				[-1, 1], the corresponding integer
				return value is	undefined. The initial
				value is (0.8, 0.8, 0.8, 1.0).

	  GL_SPECULAR		params returns four integer or
				floating-point values representing the
				specular reflectance of	the material.
				Integer	values,	when requested,	are
				linearly mapped	from the internal
				floating-point representation such
				that 1.0 maps to the most positive
				representable integer value, and -1.0
				maps to	the most negative
				representable integer value.  If the
				internal value is outside the range
				[-1, 1], the corresponding integer
				return value is	undefined. The initial
				value is (0, 0,	0, 1).

	  GL_EMISSION		params returns four integer or
				floating-point values representing the
				emitted	light intensity	of the
				material.  Integer values, when
				requested, are linearly	mapped from
				the internal floating-point
				representation such that 1.0 maps to
				the most positive representable
				integer	value, and -1.0	maps to	the
				most negative representable integer
				value.	If the internal	value is
				outside	the range [-1, 1.0], the
				corresponding integer return value is
				undefined. The initial value is	(0, 0,
				0, 1).

	  GL_SHININESS		params returns one integer or
				floating-point value representing the
				specular exponent of the material.
				Integer	values,	when requested,	are
				computed by rounding the internal
				floating-point value to	the nearest
				integer	value. The initial value is 0.

	  GL_COLOR_INDEXES	params returns three integer or
				floating-point values representing the
				ambient, diffuse, and specular indices
				of the material.  These	indices	are
				used only for color index lighting.
				(All the other parameters are used
				only for RGBA lighting.)  Integer
				values,	when requested,	are computed
				by rounding the	internal floating-
				point values to	the nearest integer
				values.

     NOTES
	  If an	error is generated, no change is made to the contents
	  of params.

     ERRORS
	  GL_INVALID_ENUM is generated if face or pname	is not an
	  accepted value.

	  GL_INVALID_OPERATION is generated if glGetMaterial is
	  executed between the execution of glBegin and	the
	  corresponding	execution of glEnd.

     SEE ALSO
	  glMaterial