glutInitDisplayMode(3GLUT) GLUT glutInitDisplayMode(3GLUT)NAMEglutInitDisplayMode - sets the initial display mode.
SYNTAX
void glutInitDisplayMode(unsigned int mode);
ARGUMENTS
mode Display mode, normally the bitwise {\m OR}-ing
of GLUT display mode bit masks. See values
below:
GLUT_RGBA
Bit mask to select an RGBA mode window. This is
the default if neither GLUT_RGBA nor GLUT_INDEX
are specified.
GLUT_RGB
An alias for GLUT_RGBA.
GLUT_INDEX
Bit mask to select a color index mode window. This
overrides GLUT_RGBA if it is also specified.
GLUT_SINGLE
Bit mask to select a single buffered window. This
is the default if neither GLUT_DOUBLE or GLUT_SIN
GLE are specified.
GLUT_DOUBLE
Bit mask to select a double buffered window. This
overrides GLUT_SINGLE if it is also specified.
GLUT_ACCUM
Bit mask to select a window with an accumulation
buffer.
GLUT_ALPHA
Bit mask to select a window with an alpha compo
nent to the color buffer(s).
GLUT_DEPTH
Bit mask to select a window with a depth buffer.
GLUT_STENCIL
Bit mask to select a window with a stencil buffer.
GLUT_MULTISAMPLE
Bit mask to select a window with multisampling
support. If multisampling is not available, a non-
multisampling window will automatically be chosen.
Note: both the OpenGL client-side and server-side
implementations must support the GLX_SAMPLE_SGIS
extension for multisampling to be available.
GLUT 3.7 1
glutInitDisplayMode(3GLUT) GLUT glutInitDisplayMode(3GLUT)
GLUT_STEREO
Bit mask to select a stereo window.
GLUT_LUMINANCE
Bit mask to select a window with a ``luminance''
color model. This model provides the functional
ity of OpenGL's RGBA color model, but the green
and blue components are not maintained in the
frame buffer. Instead each pixel's red component
is converted to an index between zero and glut
Get(GLUT_WINDOW_COLORMAP_SIZE)-1 and looked up in
a per-window color map to determine the color of
pixels within the window. The initial colormap of
GLUT_LUMINANCE windows is initialized to be a lin
ear gray ramp, but can be modified with GLUT's
colormap routines.
DESCRIPTION
The initial display mode is used when creating top-level
windows, subwindows, and overlays to determine the OpenGL
display mode for the to-be-created window or overlay.
Note that GLUT_RGBA selects the RGBA color model, but it
does not request any bits of alpha (sometimes called an
alpha buffer or destination alpha) be allocated. To
request alpha, specify GLUT_ALPHA. The same applies to
GLUT_LUMINANCE.
The glutInitDisplayString routine provides a more powerful
way to select frame buffer capabilities for GLUT windows.
GLUT_LUMINANCE IMPLEMENTATION NOTES
GLUT_LUMINANCE is not supported on most OpenGL platforms.
SEE ALSO
glutInit, glutCreateWindow, glutInitDisplayString
AUTHOR
Mark J. Kilgard (mjk@nvidia.com)
GLUT 3.7 2
