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GLCOLORMATERIAL(3G)					   GLCOLORMATERIAL(3G)

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

C SPECIFICATION
       void glColorMaterial( GLenum face,
	    GLenum 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
       glColorMaterial 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 glEnable and glDisable
       with argument GL_COLOR_MATERIAL.	 GL_COLOR_MATERIAL is initially
       disabled.

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

       Call glColorMaterial before enabling GL_COLOR_MATERIAL.

       Calling glDrawElements, glDrawArrays, or glDrawRangeElements may leave
       the current color indeterminate, if the color array is enabled.	If
       glColorMaterial 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 glColorMaterial is executed
       between the execution of glBegin and the corresponding execution of
       glEnd.

ASSOCIATED GETS
       glIsEnabled with argument GL_COLOR_MATERIAL
       glGet with argument GL_COLOR_MATERIAL_PARAMETER
       glGet with argument GL_COLOR_MATERIAL_FACE

SEE ALSO
       glColor(3G), glColorPointer(3G), glDrawArrays(3G), glDrawElements(3G),
       glDrawRangeElements(3G), glEnable(3G), glLight(3G), glLightModel(3G),
       glMaterial(3G)

								 March 1, 2011

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