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<head>
<meta name='titlecontent='HalfCylinder.x3d'/>
<meta name='descriptioncontent='Half-cylinder crease-angle demo illustrates how the crease angle value affects the smoothness of shading on a half-cylinder. The left half-cylinder has a crease angle of 0.0, causing faceted shading. The right half-cylinder has a crease angle of 1.571 (90 degrees), causing smooth shading. Both half-cylinders have *exactly* the same number of coordinates and faces, but the smooth shaded one looks better!'/>
<meta name='creatorcontent='David R. Nadeau'/>
<meta name='translatorcontent='Don Brutzman'/>
<meta name='createdcontent='1 July 1998'/>
<meta name='translatedcontent='2 February 2014'/>
<meta name='modifiedcontent='20 October 2019'/>
<meta name='referencecontent='originals/hcyl.wrl'/>
<meta name='referencecontent=' http://www.siggraph.org/s98 '/>
<meta name='referencecontent=' http://www.siggraph.org/s98/conference/courses/18.html '/>
<meta name='referencecontent=' http://www.sdsc.edu/~moreland/courses/Siggraph98/vrml97/slides/mt0244.htm '/>
<meta name='referencecontent=' http://www.sdsc.edu/~moreland/courses/Siggraph98/vrml97/vrml97.htm '/>
<meta name='referencecontent=' https://www.web3d.org/x3d/content/examples/X3dResources.html '/>
<meta name='identifiercontent=' https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Siggraph98Course/HalfCylinder.x3d '/>
<meta name='generatorcontent='Vrml97ToX3dNist, http://ovrt.nist.gov/v2_x3d.html'/>
<meta name='generatorcontent='X3D-Edit, https://savage.nps.edu/X3D-Edit'/>
<meta name='licensecontent=' ../license.html'/>
</head>
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<WorldInfo info='"Copyright (c) 1997, David R. Nadeau"title='Half-cylinder crease angle demo'/>
<Viewpoint description='Entry viewposition='0.0 0.5 4.0'/>
<NavigationInfo/>
<Transform translation='-1.0 0.0 0.0'>
<Shape>
<Appearance DEF='White'>
<Material/>
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<IndexedFaceSet solid='falsecoordIndex='0 1 3 2 -1 2 3 5 4 -1 4 5 7 6 -1 6 7 9 8 -1 8 9 11 10 -1 10 11 13 12 -1 12 13 15 14 -1 14 15 17 16 -1'>
<Coordinate DEF='Coordpoint='-0.5 0.0 1.0 0.5 0.0 1.0 -0.5 0.38 0.92 0.5 0.38 0.92 -0.5 0.71 0.71 0.5 0.71 0.71 -0.5 0.92 0.38 0.5 0.92 0.38 -0.5 1.0 0.0 0.5 1.0 0.0 -0.5 0.92 -0.38 0.5 0.92 -0.38 -0.5 0.71 -0.71 0.5 0.71 -0.71 -0.5 0.38 -0.92 0.5 0.38 -0.92 -0.5 0.0 -1.0 0.5 0.0 -1.0'/>
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</Transform>
<Transform translation='1.0 0.0 0.0'>
<Shape>
<Appearance USE='White'/>
<IndexedFaceSet creaseAngle='1.571solid='falsecoordIndex='0 1 3 2 -1 2 3 5 4 -1 4 5 7 6 -1 6 7 9 8 -1 8 9 11 10 -1 10 11 13 12 -1 12 13 15 14 -1 14 15 17 16 -1'>
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