RubyGems - ruby-opengl - Versions diffs - 0.60.1 → 0.61.0 - Mend

ruby-opengl 0.60.1 → 0.61.0

This diff represents the content of publicly available package versions that have been released to one of the supported registries. The information contained in this diff is provided for informational purposes only and reflects changes between package versions as they appear in their respective public registries.

Files changed (127) hide show

metadata +36 -186
data/Rakefile +0 -168
data/doc/build_install.txt +0 -122
data/doc/extensions.txt +0 -556
data/doc/extensions.txt.in +0 -348
data/doc/history.txt +0 -66
data/doc/requirements_and_design.txt +0 -117
data/doc/roadmap.txt +0 -28
data/doc/scientific_use.txt +0 -35
data/doc/supplies/page_template.html +0 -71
data/doc/thanks.txt +0 -29
data/doc/tutorial.txt +0 -469
data/examples/NeHe/nehe_lesson02.rb +0 -117
data/examples/NeHe/nehe_lesson03.rb +0 -122
data/examples/NeHe/nehe_lesson04.rb +0 -133
data/examples/NeHe/nehe_lesson05.rb +0 -186
data/examples/NeHe/nehe_lesson36.rb +0 -303
data/examples/OrangeBook/3Dlabs-License.txt +0 -33
data/examples/OrangeBook/brick.frag +0 -36
data/examples/OrangeBook/brick.rb +0 -376
data/examples/OrangeBook/brick.vert +0 -41
data/examples/OrangeBook/particle.frag +0 -17
data/examples/OrangeBook/particle.rb +0 -406
data/examples/OrangeBook/particle.vert +0 -38
data/examples/README +0 -16
data/examples/RedBook/aapoly.rb +0 -142
data/examples/RedBook/aargb.rb +0 -119
data/examples/RedBook/accanti.rb +0 -162
data/examples/RedBook/accpersp.rb +0 -215
data/examples/RedBook/alpha.rb +0 -123
data/examples/RedBook/alpha3D.rb +0 -158
data/examples/RedBook/bezcurve.rb +0 -105
data/examples/RedBook/bezmesh.rb +0 -137
data/examples/RedBook/checker.rb +0 -124
data/examples/RedBook/clip.rb +0 -95
data/examples/RedBook/colormat.rb +0 -135
data/examples/RedBook/cube.rb +0 -69
data/examples/RedBook/depthcue.rb +0 -99
data/examples/RedBook/dof.rb +0 -205
data/examples/RedBook/double.rb +0 -105
data/examples/RedBook/drawf.rb +0 -91
data/examples/RedBook/feedback.rb +0 -145
data/examples/RedBook/fog.rb +0 -167
data/examples/RedBook/font.rb +0 -151
data/examples/RedBook/hello.rb +0 -79
data/examples/RedBook/image.rb +0 -137
data/examples/RedBook/jitter.rb +0 -207
data/examples/RedBook/lines.rb +0 -128
data/examples/RedBook/list.rb +0 -111
data/examples/RedBook/material.rb +0 -275
data/examples/RedBook/mipmap.rb +0 -156
data/examples/RedBook/model.rb +0 -113
data/examples/RedBook/movelight.rb +0 -132
data/examples/RedBook/pickdepth.rb +0 -179
data/examples/RedBook/planet.rb +0 -108
data/examples/RedBook/quadric.rb +0 -158
data/examples/RedBook/robot.rb +0 -115
data/examples/RedBook/select.rb +0 -196
data/examples/RedBook/smooth.rb +0 -95
data/examples/RedBook/stencil.rb +0 -163
data/examples/RedBook/stroke.rb +0 -167
data/examples/RedBook/surface.rb +0 -166
data/examples/RedBook/teaambient.rb +0 -132
data/examples/RedBook/teapots.rb +0 -182
data/examples/RedBook/tess.rb +0 -183
data/examples/RedBook/texbind.rb +0 -147
data/examples/RedBook/texgen.rb +0 -169
data/examples/RedBook/texturesurf.rb +0 -128
data/examples/RedBook/varray.rb +0 -159
data/examples/RedBook/wrap.rb +0 -148
data/examples/misc/OGLBench.rb +0 -337
data/examples/misc/anisotropic.rb +0 -194
data/examples/misc/fbo_test.rb +0 -356
data/examples/misc/font-glut.rb +0 -46
data/examples/misc/glfwtest.rb +0 -30
data/examples/misc/plane.rb +0 -161
data/examples/misc/readpixel.rb +0 -65
data/examples/misc/sdltest.rb +0 -34
data/examples/misc/trislam.rb +0 -828
data/ext/common/common.h +0 -423
data/ext/common/conv.h +0 -244
data/ext/common/funcdef.h +0 -280
data/ext/common/gl-enums.h +0 -10031
data/ext/common/gl-error.h +0 -23
data/ext/common/gl-types.h +0 -61
data/ext/common/glu-enums.h +0 -463
data/ext/gl/gl-1.0-1.1.c +0 -2817
data/ext/gl/gl-1.2.c +0 -814
data/ext/gl/gl-1.3.c +0 -444
data/ext/gl/gl-1.4.c +0 -349
data/ext/gl/gl-1.5.c +0 -225
data/ext/gl/gl-2.0.c +0 -657
data/ext/gl/gl-2.1.c +0 -57
data/ext/gl/gl-enums.c +0 -3354
data/ext/gl/gl-error.c +0 -104
data/ext/gl/gl-ext-3dfx.c +0 -27
data/ext/gl/gl-ext-arb.c +0 -866
data/ext/gl/gl-ext-ati.c +0 -41
data/ext/gl/gl-ext-ext.c +0 -890
data/ext/gl/gl-ext-gremedy.c +0 -41
data/ext/gl/gl-ext-nv.c +0 -679
data/ext/gl/gl.c +0 -214
data/ext/gl/mkrf_conf.rb +0 -34
data/ext/glu/glu-enums.c +0 -164
data/ext/glu/glu.c +0 -1530
data/ext/glu/mkrf_conf.rb +0 -35
data/ext/glut/glut.c +0 -1623
data/ext/glut/mkrf_conf.rb +0 -37
data/lib/opengl.rb +0 -84
data/test/README +0 -10
data/test/tc_common.rb +0 -98
data/test/tc_ext_arb.rb +0 -467
data/test/tc_ext_ati.rb +0 -33
data/test/tc_ext_ext.rb +0 -551
data/test/tc_ext_gremedy.rb +0 -36
data/test/tc_ext_nv.rb +0 -357
data/test/tc_func_10_11.rb +0 -1281
data/test/tc_func_12.rb +0 -186
data/test/tc_func_13.rb +0 -229
data/test/tc_func_14.rb +0 -197
data/test/tc_func_15.rb +0 -270
data/test/tc_func_20.rb +0 -346
data/test/tc_func_21.rb +0 -541
data/test/tc_glu.rb +0 -310
data/test/tc_include_gl.rb +0 -35
data/test/tc_misc.rb +0 -54
data/test/tc_require_gl.rb +0 -34

data/examples/RedBook/bezcurve.rb DELETED

@@ -1,105 +0,0 @@
-#
-# 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.
-#
-# bezcurve.c
-# This program uses evaluators to draw a Bezier curve.
-require "opengl"
-include Gl,Glu,Glut
-$ctrlpoints = [
-	[-4.0,-4.0, 0.0],
-	[-2.0, 4.0, 0.0],
-	[ 2.0,-4.0, 0.0],
-	[ 4.0, 4.0, 0.0]
-	]
-def init
-	glClearColor(0.0, 0.0, 0.0, 0.0)
-	glShadeModel(GL_FLAT)
-	glMap1d(GL_MAP1_VERTEX_3, 0.0, 1.0, 3, 4, $ctrlpoints.flatten)
-	glEnable(GL_MAP1_VERTEX_3)
-end
-display = proc do
-	glClear(GL_COLOR_BUFFER_BIT)
-	glColor(1.0, 1.0, 1.0)
-	glBegin(GL_LINE_STRIP)
-	for i in 0..30
-		glEvalCoord1d(i.to_f/30.0)
-	end
-	glEnd()
-	# The following code displays the control points as dots.
-	glPointSize(5.0)
-	glColor(1.0, 1.0, 0.0)
-	glBegin(GL_POINTS)
-	for i in 0...4
-		glVertex($ctrlpoints[i])
-	end
-	glEnd()
-	glutSwapBuffers()
-end
-reshape = proc do |w, h|
-	glViewport(0, 0, w, h)
-	glMatrixMode(GL_PROJECTION)
-	glLoadIdentity()
-	if (w <= h)
-		glOrtho(-5.0, 5.0, -5.0*h/w, 5.0*h/w, -5.0, 5.0)
-	else
-		glOrtho(-5.0*w/h, 5.0*w/h, -5.0, 5.0, -5.0, 5.0)
-	end
-	glMatrixMode(GL_MODELVIEW)
-	glLoadIdentity()
-end
-keyboard = proc do |key, x, y|
-	case (key)
-	when ?\e
-		exit(0)
-	end
-end
-glutInit()
-glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB)
-glutInitWindowSize(500, 500)
-glutInitWindowPosition(100, 100)
-glutCreateWindow()
-init()
-glutDisplayFunc(display)
-glutReshapeFunc(reshape)
-glutKeyboardFunc(keyboard)
-glutMainLoop()

data/examples/RedBook/bezmesh.rb DELETED

@@ -1,137 +0,0 @@
-#
-# Copyright (c) Mark J. Kilgard, 1994.
-#
-# (c) Copyright 1993, 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(TM) is a trademark of Silicon Graphics, Inc.
-#
-# bezsurf.c
-# This program renders a lighted, filled Bezier surface,
-# using two-dimensional evaluators.
-#
-require 'opengl'
-include Gl,Glu,Glut
-$ctrlpoints = [
-	[
-		[-1.5, -1.5, 4.0],
-		[-0.5, -1.5, 2.0],
-		[0.5, -1.5, -1.0],
-		[1.5, -1.5, 2.0]],
-	[
-		[-1.5, -0.5, 1.0],
-		[-0.5, -0.5, 3.0],
-		[0.5, -0.5, 0.0],
-		[1.5, -0.5, -1.0]],
-	[
-		[-1.5, 0.5, 4.0],
-		[-0.5, 0.5, 0.0],
-		[0.5, 0.5, 3.0],
-		[1.5, 0.5, 4.0]],
-	[
-		[-1.5, 1.5, -2.0],
-		[-0.5, 1.5, -2.0],
-		[0.5, 1.5, 0.0],
-		[1.5, 1.5, -1.0]]
-]
-def initlights
-	ambient = [0.2, 0.2, 0.2, 1.0]
-	position = [0.0, 0.0, 2.0, 1.0]
-	mat_diffuse = [0.6, 0.6, 0.6, 1.0]
-	mat_specular = [1.0, 1.0, 1.0, 1.0]
-	mat_shininess = [50.0]
-	glEnable(GL_LIGHTING)
-	glEnable(GL_LIGHT0)
-	glLight(GL_LIGHT0, GL_AMBIENT, ambient)
-	glLight(GL_LIGHT0, GL_POSITION, position)
-	glMaterial(GL_FRONT, GL_DIFFUSE, mat_diffuse)
-	glMaterial(GL_FRONT, GL_SPECULAR, mat_specular)
-	glMaterial(GL_FRONT, GL_SHININESS, mat_shininess)
-end
-display = proc do
-	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
-	glPushMatrix()
-	glRotate(85.0, 1.0, 1.0, 1.0)
-	glEvalMesh2(GL_FILL, 0, 20, 0, 20)
-	glPopMatrix()
-	glutSwapBuffers()
-end
-def myinit
-	glClearColor(0.0, 0.0, 0.0, 1.0)
-	glEnable(GL_DEPTH_TEST)
-	glMap2d(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4, $ctrlpoints.flatten)
-	glEnable(GL_MAP2_VERTEX_3)
-	glEnable(GL_AUTO_NORMAL)
-	glEnable(GL_NORMALIZE)
-	glMapGrid2d(20, 0.0, 1.0, 20, 0.0, 1.0)
-	initlights() # for lighted version only
-end
-myReshape = proc do |w, h|
-	glViewport(0, 0, w, h)
-	glMatrixMode(GL_PROJECTION)
-	glLoadIdentity()
-	if (w <= h)
-		glOrtho(-4.0, 4.0, -4.0 * h / w, 4.0 * h / w, -4.0, 4.0)
-	else
-		glOrtho(-4.0 * w / h, 4.0 * w / h, -4.0, 4.0, -4.0, 4.0)
-	end
-	glMatrixMode(GL_MODELVIEW)
-	glLoadIdentity()
-end
-keyboard = Proc.new do |key, x, y|
-	case (key)
-		when ?\e
-			exit(0);
-	end
-end
-glutInit()
-glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH)
-glutInitWindowSize(500, 500)
-glutInitWindowPosition(100, 100)
-glutCreateWindow($0)
-myinit()
-glutReshapeFunc(myReshape)
-glutDisplayFunc(display)
-glutKeyboardFunc(keyboard)
-glutMainLoop()

data/examples/RedBook/checker.rb DELETED

@@ -1,124 +0,0 @@
-#
-# Copyright (c) Mark J. Kilgard, 1994.
-#
-# (c) Copyright 1993, 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(TM) is a trademark of Silicon Graphics, Inc.
-#
-# checker.c
-# This program texture maps a checkerboard image onto
-# two rectangles.  This program clamps the texture, if
-# the texture coordinates fall outside 0.0 and 1.0.
-require 'opengl'
-require 'mathn'
-include Gl,Glu,Glut
-#	Create checkerboard texture
-CheckImageWidth=64
-CheckImageHeight=64
-$checkImage = []
-def makeCheckImage
-	for i in 0..CheckImageWidth-1
-		for j in 0..CheckImageHeight-1
-			c = if ((i&0x8==0) != (j&0x8==0)) then 255 else 0 end
-			$checkImage[(i+CheckImageWidth*j)*3+0] = c
-			$checkImage[(i+CheckImageWidth*j)*3+1] = c
-			$checkImage[(i+CheckImageWidth*j)*3+2] = c
-		end
-	end
-end
-def myinit
-	glClearColor(0.0, 0.0, 0.0, 0.0)
-	glEnable(GL_DEPTH_TEST)
-	glDepthFunc(GL_LESS)
-	makeCheckImage()
-	glPixelStore(GL_UNPACK_ALIGNMENT, 1)
-	glTexImage2D(GL_TEXTURE_2D, 0, 3, CheckImageWidth,
-		CheckImageHeight, 0, GL_RGB, GL_UNSIGNED_BYTE,
-		$checkImage.pack("C*"))
-	glTexParameter(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP)
-	glTexParameter(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP)
-	glTexParameter(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
-	glTexParameter(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
-	glTexEnv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL)
-	glEnable(GL_TEXTURE_2D)
-	glShadeModel(GL_FLAT)
-end
-display = Proc.new do
-	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
-	glBegin(GL_QUADS)
-	glTexCoord(0.0, 0.0); glVertex(-2.0, -1.0, 0.0)
-	glTexCoord(0.0, 1.0); glVertex(-2.0, 1.0, 0.0)
-	glTexCoord(1.0, 1.0); glVertex(0.0, 1.0, 0.0)
-	glTexCoord(1.0, 0.0); glVertex(0.0, -1.0, 0.0)
-	glTexCoord(0.0, 0.0); glVertex(1.0, -1.0, 0.0)
-	glTexCoord(0.0, 1.0); glVertex(1.0, 1.0, 0.0)
-	glTexCoord(1.0, 1.0); glVertex(2.41421, 1.0, -1.41421)
-	glTexCoord(1.0, 0.0); glVertex(2.41421, -1.0, -1.41421)
-	glEnd()
-	glutSwapBuffers()
-end
-myReshape = Proc.new do |w, h|
-	glViewport(0, 0, w, h)
-	glMatrixMode(GL_PROJECTION)
-	glLoadIdentity()
-	gluPerspective(60.0, 1.0*w/h, 1.0, 30.0)
-	glMatrixMode(GL_MODELVIEW)
-	glLoadIdentity()
-	glTranslate(0.0, 0.0, -3.6)
-end
-keyboard = Proc.new do |key, x, y|
-	case (key)
-		when ?\e
-		exit(0)
-	end
-end
-glutInit
-glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH)
-glutInitWindowSize(500, 500)
-glutInitWindowPosition(100, 100)
-glutCreateWindow("checker")
-myinit()
-glutReshapeFunc(myReshape)
-glutDisplayFunc(display)
-glutKeyboardFunc(keyboard)
-glutMainLoop()

data/examples/RedBook/clip.rb DELETED

@@ -1,95 +0,0 @@
-#
-# 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.
-#
-# clip.c
-# This program demonstrates arbitrary clipping planes.
-require 'opengl'
-require 'mathn'
-include Gl,Glu,Glut
-def init
-	glClearColor(0.0, 0.0, 0.0, 0.0)
-	glShadeModel(GL_FLAT)
-end
-display = Proc.new do
-	eqn = [0.0, 1.0, 0.0, 0.0]
-	eqn2 = [1.0, 0.0, 0.0, 0.0]
-	glClear(GL_COLOR_BUFFER_BIT)
-	glColor(1.0, 1.0, 1.0)
-	glPushMatrix()
-	glTranslate(0.0, 0.0, -5.0)
-	# clip lower half -- y < 0
-	glClipPlane(GL_CLIP_PLANE0, eqn)
-	glEnable(GL_CLIP_PLANE0)
-	# clip left half -- x < 0
-	glClipPlane(GL_CLIP_PLANE1, eqn2)
-	glEnable(GL_CLIP_PLANE1)
-	glRotate(90.0, 1.0, 0.0, 0.0)
-	glutWireSphere(1.0, 20, 16)
-	glPopMatrix()
-	glutSwapBuffers()
-end
-reshape = Proc.new do |w, h|
-	glViewport(0, 0,  w,  h)
-	glMatrixMode(GL_PROJECTION)
-	glLoadIdentity()
-	gluPerspective(60.0,  w/ h, 1.0, 20.0)
-	glMatrixMode(GL_MODELVIEW)
-end
-keyboard = Proc.new do |key, x, y|
-	case (key)
-		when ?\e
-			exit(0)
-	end
-end
-glutInit
-glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB)
-glutInitWindowSize(500, 500)
-glutInitWindowPosition(100, 100)
-glutCreateWindow($0)
-init()
-glutDisplayFunc(display)
-glutReshapeFunc(reshape)
-glutKeyboardFunc(keyboard)
-glutMainLoop()