NAME
	  fglColorMaterial - cause a material color to track the
	  current color


     FORTRAN SPECIFICATION
	  SUBROUTINE fglColorMaterial( INTEGER*4 face,
				       INTEGER*4 mode )


     PARAMETERS
	  face	Specifies whether front, back, or both front and back
		material parameters should track the current color.
		Accepted values	are GL_FRONT, GL_BACK, and
		GL_FRONT_AND_BACK.  The	initial	value is
		GL_FRONT_AND_BACK.

	  mode	Specifies which	of several material parameters track
		the current color.  Accepted values are	GL_EMISSION,
		GL_AMBIENT, GL_DIFFUSE,	GL_SPECULAR, and
		GL_AMBIENT_AND_DIFFUSE.	 The initial value is
		GL_AMBIENT_AND_DIFFUSE.

     DESCRIPTION
	  fglColorMaterial specifies which material parameters track
	  the current color.  When GL_COLOR_MATERIAL is	enabled, the
	  material parameter or	parameters specified by	mode, of the
	  material or materials	specified by face, track the current
	  color	at all times.

	  To enable and	disable	GL_COLOR_MATERIAL, call	fglEnable and
	  fglDisable with argument GL_COLOR_MATERIAL.
	  GL_COLOR_MATERIAL is initially disabled.

     NOTES
	  fglColorMaterial makes it possible to	change a subset	of
	  material parameters for each vertex using only the fglColor
	  command, without calling fglMaterial.	 If only such a	subset
	  of parameters	is to be specified for each vertex, calling
	  fglColorMaterial is preferable to calling fglMaterial.

	  Call fglColorMaterial	before enabling	GL_COLOR_MATERIAL.

	  Calling fglDrawElements may leave the	current	color
	  indeterminate.  If fglColorMaterial is enabled while the
	  current color	is indeterminate, the lighting material	state
	  specified by face and	mode is	also indeterminate.

	  If the GL version is 1.1 or greater, and GL_COLOR_MATERIAL
	  is enabled, evaluated	color values affect the	results	of the
	  lighting equation as if the current color were being
	  modified, but	no change is made to the tracking lighting
	  parameter of the current color.

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

	  GL_INVALID_OPERATION is generated if fglColorMaterial	is
	  executed between the execution of fglBegin and the
	  corresponding	execution of fglEnd.

     ASSOCIATED	GETS
	  fglIsEnabled with argument GL_COLOR_MATERIAL
	  fglGet with argument GL_COLOR_MATERIAL_PARAMETER
	  fglGet with argument GL_COLOR_MATERIAL_FACE

     SEE ALSO
	  fglColor, fglColorPointer, fglDrawElements, fglEnable,
	  fglLight, fglLightModel, fglMaterial