MirOS Manual: glColor(3), glColor3b(3), glColor3bv(3), glColor3d(3), glColor3dv(3), glColor3f(3), glColor3fv(3), glColor3i(3), glColor3iv(3), glColor3s(3), glColor3sv(3), glColor3ub(3), glColor3ubv(3), glColor3ui(3), glColor3uiv(3), glColor3us(3), glColor3usv(3), glColor4b(3), glColor4bv(3), glColor4d(3), glColor4dv(3), glColor4f(3), glColor4fv(3), glColor4i(3), glColor4iv(3), glColor4s(3), glColor4sv(3), glColor4ub(3), glColor4ubv(3), glColor4ui(3), glColor4uiv(3), glColor4us(3), glColor4usv(3)


GLCOLOR(3G)         UNIX Programmer's Manual          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 )

MirOS BSD #10-current  Printed 03.04.2017                       1

GLCOLOR(3G)         UNIX Programmer's Manual          GLCOLOR(3G)

     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 current 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

MirOS BSD #10-current  Printed 03.04.2017                       2

GLCOLOR(3G)         UNIX Programmer's Manual          GLCOLOR(3G)

     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 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 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. How-
     ever, color components 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)

MirOS BSD #10-current  Printed 03.04.2017                       3

Generated on 2017-04-03 16:26:17 by $MirOS: src/scripts/roff2htm,v 1.88 2017/01/29 00:51:06 tg Exp $

These manual pages and other documentation are copyrighted by their respective writers; their source is available at our CVSweb, AnonCVS, and other mirrors. The rest is Copyright © 2002–2017 The MirOS Project, Germany.
This product includes material provided by mirabilos.

This manual page’s HTML representation is supposed to be valid XHTML/1.1; if not, please send a bug report — diffs preferred.