GLenum mode )

PARAMETERS
       face  Specifies whether front, back, or both front and back material pa‐
             rameters 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 pa‐
       rameters  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 dis‐
       abled.

NOTES
       glColorMaterial makes it possible to change a subset of material parame‐
       ters  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 indetermi‐
       nate.

       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