glColor4f

GLCOLOR(3G)							  GLCOLOR(3G)



NAME
       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
       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,
		       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
       red, green, blue
		       Specify	new  red, green, and blue values for the cur-
		       rent color.

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

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

DESCRIPTION
       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 vari-
       ants specify new red, green, and blue values explicitly	and  set  the
       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 , 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 speci-
       fied, are linearly mapped to floating-point values such that the	 most
       positive representable value maps to 1.0, and the most negative repre-
       sentable 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	 com-
       ponents	are  clamped  to  this	range before they are interpolated or
       written into a color buffer.

NOTES
       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
       glGet with argument GL_CURRENT_COLOR
       glGet with argument GL_RGBA_MODE

SEE ALSO
       glIndex(3G)



								  GLCOLOR(3G)