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#
#Copyright (c) 1993-1997, Silicon Graphics, Inc.
#ALL RIGHTS RESERVED
#Permission to use, copy, modify, and distribute this software for
#any purpose and without fee is hereby granted, provided that the above
#copyright notice appear in all copies and that both the copyright notice
#and this permission notice appear in supporting documentation, and that
#the name of Silicon Graphics, Inc. not be used in advertising
#or publicity pertaining to distribution of the software without specific,
#written prior permission.
#
#THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
#AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
#INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
#FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
#GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
#SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
#KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
#LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
#THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN
#ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
#ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
#POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
#
#US Government Users Restricted Rights
#Use, duplication, or disclosure by the Government is subject to
#restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
#(c)(1)(ii) of the Rights in Technical Data and Computer Software
#clause at DFARS 252.227-7013 and/or in similar or successor
#clauses in the FAR or the DOD or NASA FAR Supplement.
#Unpublished-- rights reserved under the copyright laws of the
#United States. Contractor/manufacturer is Silicon Graphics,
#Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311.
#
#OpenGL(R) is a registered trademark of Silicon Graphics, Inc.
#
#
#hello.c
#This is a simple, introductory OpenGL program.
#
require "opengl"
require "glut"
display = Proc.new {
GL.Clear (GL::COLOR_BUFFER_BIT);
GL.Color(1.0, 1.0, 1.0);
GL.Begin(GL::POLYGON);
GL.Vertex(0.25, 0.25, 0.0);
GL.Vertex(0.75, 0.25, 0.0);
GL.Vertex(0.75, 0.75, 0.0);
GL.Vertex(0.25, 0.75, 0.0);
GL.End();
GL.Flush();
}
def init
GL.ClearColor(0.0, 0.0, 0.0, 0.0);
GL.MatrixMode(GL::PROJECTION);
GL.LoadIdentity();
GL.Ortho(0.0, 1.0, 0.0, 1.0, -1.0, 1.0);
end
GLUT.Init
GLUT.InitDisplayMode(GLUT::SINGLE | GLUT::RGB);
GLUT.InitWindowSize(250, 250);
GLUT.InitWindowPosition(100, 100);
GLUT.CreateWindow("hello");
init();
GLUT.DisplayFunc(display);
GLUT.MainLoop();
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