glColor(3G)		       OpenGL Reference			   glColor(3G)

NAME    [Toc]    [Back]

     glColor3b,	glColor3d, glColor3f, glColor3i, glColor3s, glColor3ub,
     glColor3ui, glColor3us, glColor4b,	glColor4d, glColor4f, glColor4i,
     glColor4s,	glColor4ub, glColor4ui,	glColor4us, glColor3bv,	glColor3dv,
     glColor3fv, glColor3iv, glColor3sv, glColor3ubv, glColor3uiv,
     glColor3usv, glColor4bv, glColor4dv, glColor4fv, glColor4iv, glColor4sv,
     glColor4ubv, glColor4uiv, glColor4usv - set the current color

C SPECIFICATION    [Toc]    [Back]

     void glColor3b( GLbyte red,
		     GLbyte green,
		     GLbyte blue )
     void glColor3d( GLdouble red,
		     GLdouble green,
		     GLdouble blue )
     void glColor3f( GLfloat red,
		     GLfloat green,
		     GLfloat blue )
     void glColor3i( GLint red,
		     GLint green,
		     GLint blue	)
     void glColor3s( GLshort red,
		     GLshort green,
		     GLshort blue )
     void glColor3ub( GLubyte red,
		      GLubyte green,
		      GLubyte blue )
     void glColor3ui( GLuint red,
		      GLuint green,
		      GLuint blue )
     void glColor3us( GLushort red,
		      GLushort green,
		      GLushort blue )
     void glColor4b( GLbyte red,
		     GLbyte green,
		     GLbyte blue,
		     GLbyte alpha )
     void glColor4d( GLdouble red,
		     GLdouble green,
		     GLdouble blue,
		     GLdouble alpha )
     void glColor4f( GLfloat red,
		     GLfloat green,
		     GLfloat blue,
		     GLfloat alpha )
     void glColor4i( GLint red,
		     GLint green,
		     GLint blue,
		     GLint alpha )
     void glColor4s( GLshort red,
		     GLshort green,



									Page 1






glColor(3G)		       OpenGL Reference			   glColor(3G)



		    GLshort blue,
		     GLshort alpha )
     void glColor4ub( GLubyte red,
		      GLubyte green,
		      GLubyte blue,
		      GLubyte alpha )
     void glColor4ui( GLuint red,
		      GLuint green,
		      GLuint blue,
		      GLuint alpha )
     void glColor4us( GLushort red,
		      GLushort green,
		      GLushort blue,
		      GLushort alpha )

PARAMETERS    [Toc]    [Back]

     red, green, blue
		     Specify new red, green, and blue values for the current
		     color.

     alpha	     Specifies a new alpha value for the current color.
		     Included only in the four-argument	glColor4 commands.

C SPECIFICATION    [Toc]    [Back]

     void glColor3bv( const GLbyte *v )
     void glColor3dv( const GLdouble *v	)
     void glColor3fv( const GLfloat *v )
     void glColor3iv( const GLint *v )
     void glColor3sv( const GLshort *v )
     void glColor3ubv( const GLubyte *v	)
     void glColor3uiv( const GLuint *v )
     void glColor3usv( const GLushort *v )
     void glColor4bv( const GLbyte *v )
     void glColor4dv( const GLdouble *v	)
     void glColor4fv( const GLfloat *v )
     void glColor4iv( const GLint *v )
     void glColor4sv( const GLshort *v )
     void glColor4ubv( const GLubyte *v	)
     void glColor4uiv( const GLuint *v )
     void glColor4usv( const GLushort *v )

PARAMETERS    [Toc]    [Back]

     v	  Specifies a pointer to an array that contains	red, green, blue, and
	  (sometimes) alpha values.

DESCRIPTION    [Toc]    [Back]

     The GL stores both	a current single-valued	color index and	a current
     four-valued RGBA color.  glColor sets a new four-valued RGBA color.
     glColor has two major variants:  glColor3 and glColor4.  glColor3
     variants specify new red, green, and blue values explicitly and set the



									Page 2






glColor(3G)		       OpenGL Reference			   glColor(3G)



     current alpha value to 1.0	(full intensity) implicitly.  glColor4
     variants specify all four color components	explicitly.

     glColor3b,	glColor4b, glColor3s, glColor4s, glColor3i, and	glColor4i take
     three or four signed byte,	short, or long integers	as arguments.  When v
     is	appended to the	name, the color	commands can take a pointer to an
     array of such values.

     Current color values are stored in	floating-point format, with
     unspecified mantissa and exponent sizes.  Unsigned	integer	color
     components, when specified, are linearly mapped to	floating-point values
     such that the largest representable value maps to 1.0 (full intensity),
     and 0 maps	to 0.0 (zero intensity).  Signed integer color components,
     when specified, are linearly mapped to floating-point values such that
     the most positive representable value maps	to 1.0,	and the	most negative
     representable value maps to -1.0. (Note that this mapping does not
     convert 0 precisely to 0.0.)  Floating-point values are mapped directly.

     Neither floating-point nor	signed integer values are clamped to the range
     [0,1] before the current color is updated.	 However, color	components are
     clamped to	this range before they are interpolated	or written into	a
     color buffer.

NOTES    [Toc]    [Back]

     The initial value for the current color is	(1, 1, 1, 1).

     The current color can be updated at any time.  In particular, glColor can
     be	called between a call to glBegin and the corresponding call to glEnd.

ASSOCIATED GETS    [Toc]    [Back]

     glGet with	argument GL_CURRENT_COLOR
     glGet with	argument GL_RGBA_MODE

SEE ALSO    [Toc]    [Back]

     glIndex


									PPPPaaaaggggeeee 3333