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lmcolor(3G)							   lmcolor(3G)

NAME
     lmcolor - change the effect of color commands while lighting is active

C SPECIFICATION
     void lmcolor(long mode)

PARAMETERS
     mode   the name of the mode to be used.  Possible modes are:

	    LMC_COLOR, RGB color commands will set the current color.  If a
	    color is the last thing sent before a vertex the vertex will be
	    colored.  If a normal is the last thing sent before a vertex the
	    vertex will be lighted.  LMC_COLOR is the default mode.

	    LMC_EMISSION, RGB color commands will set the EMISSION color
	    property of the current material.

	    LMC_AMBIENT, RGB color commands will set the AMBIENT color
	    property of the current material.

	    LMC_DIFFUSE, RGB color commands will set the DIFFUSE color
	    property of the current material.  Alpha, the fourth color
	    component specified by RGB color commands will set the ALPHA
	    property of the current material.

	    LMC_SPECULAR, RGB color commands will set the SPECULAR color
	    property of the current material.

	    LMC_AD, RGB color commands will set the DIFFUSE and AMBIENT color
	    property of the current material.  Alpha, the fourth color
	    component specified by RGB color commands will set the ALPHA
	    property of the current material.

	    LMC_NULL, RGB color commands will be ignored.

DESCRIPTION
     Properties of the currently bound material can be changed by calls to
     lmdef.  Because the data structure of the material must be modified by
     this operation, however, it is relatively slow to execute.	 lmcolor is
     provided to support fast and efficient changes to the current material as
     maintained in the graphics hardware, without changing the definition of
     the currently bound material.  Thus lmcolor changes are lost whenever a
     new material is bound.

     The standard RGB color commands (RGBcolor, c, and cpack) are used to
     change material properties efficiently.  lmcolor specifies which material
     property is to be affected by these commands.  While lighting is not
     active color commands change the current color.  lmcolor mode is
     significant only while lighting is on.

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lmcolor(3G)							   lmcolor(3G)

SEE ALSO
     lmdef, lmbind, RGBcolor, c, cpack

NOTE
     lmcolor allows changes only to the properties of MATERIAL, not to the
     properties of BACKMATERIAL.

     While lmcolor is other than LMC_NULL or LMC_COLOR, and lighting is
     active, the results of lighting are undefined between the time that a
     material is bound and an RGB color command is issued.

     While lmcolor is other than LMC_NULL or LMC_COLOR, and lighting is
     active, the results of lighting are undefined if an RGB color command is
     specified between an n command and the subsequent v command.

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