<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 3.3//EN" "https://www.web3d.org/specifications/x3d-3.3.dtd">
<X3D profile='Immersive'  version='3.3'  xmlns:xsd='http://www.w3.org/2001/XMLSchema-instance' xsd:noNamespaceSchemaLocation =' https://www.web3d.org/specifications/x3d-3.3.xsd ' >
<head>
<meta name='title' content='TreeWall.x3d'/>
<meta name='description' content='A set of trees in front of a wall. This world illustrates the use of textures with a transparency channel (alpha channel). Such textures include pixel-by-pixel info about what parts of the image are transparent. A tree texture, for instance, should be opaque where there are leaves, branches, or the trun, and transparent everywhere else. To illustrate this use of transparency channel textures, this world places three trees side-by-side in front of a wall. The left tree polygon has no texture on it. The middle polygon has a tree texture without the transparency channel. The right polygon has a tree texture with a transparency texture. All three trees are in Billboard nodes so that they always turn to face the viewer.'/>
<meta name='creator' content='David R. Nadeau, John L. Moreland, Michael M. Heck'/>
<meta name='translator' content='Don Brutzman'/>
<meta name='created' content='1 July 1998'/>
<meta name='translated' content='2 February 2014'/>
<meta name='modified' content='20 October 2019'/>
<meta name='reference' content='originals/treewall.wrl'/>
<meta name='reference' content=' http://www.siggraph.org/s98 '/>
<meta name='reference' content=' http://www.siggraph.org/s98/conference/courses/18.html '/>
<meta name='reference' content=' http://www.sdsc.edu/~moreland/courses/Siggraph98/vrml97/slides/mt0273.htm '/>
<meta name='reference' content=' http://www.sdsc.edu/~moreland/courses/Siggraph98/vrml97/slides/mt0274.htm '/>
<meta name='reference' content=' http://www.sdsc.edu/~moreland/courses/Siggraph98/vrml97/vrml97.htm '/>
<meta name='reference' content=' https://www.web3d.org/x3d/content/examples/X3dResources.html '/>
<meta name='identifier' content=' https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Siggraph98Course/TreeWall.x3d '/>
<meta name='generator' content='Vrml97ToX3dNist, http://ovrt.nist.gov/v2_x3d.html'/>
<meta name='generator' content='X3D-Edit, https://savage.nps.edu/X3D-Edit'/>
<meta name='license' content=' ../license.html'/>
</head>
<!--
to top <!-- Index for DEF nodes: Brick, Concrete, Planter, PlanterCoordinates, Tree, TreeFace
Index for Viewpoint node: Viewpoint_1
-->
<Scene>
<WorldInfo info='"Copyright (c) 1997, David R. Nadeau"' title='Trees in front of a wall'/>
<Viewpoint description='Entry view' position='0.0 1.5 10.0'/>
<NavigationInfo speed='2.0'/>
<Shape>
<Appearance DEF='Concrete'>
<Material/>
</Appearance>
<IndexedFaceSet solid='false' coordIndex='0 1 2 3 -1 3 2 4 5 -1 5 4 6 7 -1 7 6 8 9 -1 9 8 10 11 -1'>
<Coordinate point='-5.0 0.0 5.0 5.0 0.0 5.0 5.0 0.0 1.0 -5.0 0.0 1.0 5.0 0.05 1.0 -5.0 0.05 1.0 5.0 0.05 -2.0 -5.0 0.05 -2.0 5.0 0.25 -2.0 -5.0 0.25 -2.0 5.0 0.25 -2.05 -5.0 0.25 -2.05'/>
</IndexedFaceSet>
</Shape>
<Shape>
<Appearance DEF='Brick'>
<TextureTransform scale='15.0 15.0'/>
<Material/>
<ImageTexture
  url=' "brick.jpg " "https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Siggraph98Course/brick.jpg " ' />
</Appearance>
<IndexedFaceSet solid='false' coordIndex='0 1 2 3' texCoordIndex='0 1 2 3'>
<TextureCoordinate point='0.0 0.0 1.0 0.0 1.0 1.0 0.0 1.0'/>
<Coordinate point='-5.0 0.25 -2.05 5.0 0.25 -2.05 5.0 5.0 -2.05 -5.0 5.0 -2.05'/>
</IndexedFaceSet>
</Shape>
<Transform DEF='Planter' scale='0.5 0.5 0.5'>
<Shape>
<Appearance USE=' Concrete'/>
<IndexedFaceSet coordIndex='0 1 5 4 -1 1 2 6 5 -1 2 3 7 6 -1 3 0 4 7 -1 0 8 9 1 -1 9 10 2 1 -1 10 11 3 2 -1 11 8 0 3 -1 15 14 6 7 -1 14 13 5 6 -1 13 12 4 5 -1 12 15 7 4 -1'>
<Coordinate DEF='PlanterCoordinates' point='-1.0 0.5 1.0 1.0 0.5 1.0 1.0 0.5 -1.0 -1.0 0.5 -1.0 -0.8 0.5 0.9 0.8 0.5 0.9 0.8 0.5 -0.9 -0.8 0.5 -0.9 -1.0 0.0 1.0 1.0 0.0 1.0 1.0 0.0 -1.0 -1.0 0.0 -1.0 -0.8 0.3 0.9 0.8 0.3 0.9 0.8 0.3 -0.9 -0.8 0.3 -0.9'/>
</IndexedFaceSet>
</Shape>
<Shape>
<Appearance>
<Material diffuseColor='0.0 0.5 0.0'/>
</Appearance>
<IndexedFaceSet coordIndex='12 13 14 15'>
<Coordinate USE=' PlanterCoordinates'/>
</IndexedFaceSet>
</Shape>
</Transform>
<Transform translation='3.5 0.0 0.0'>
<Transform USE=' Planter'/>
<Billboard>
<Shape>
<Appearance>
<ImageTexture
  url=' "tree1.png " "https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Siggraph98Course/tree1.png " ' />
</Appearance>
<IndexedFaceSet DEF='TreeFace' solid='false' coordIndex='0 1 2 3' texCoordIndex='0 1 2 3'>
<TextureCoordinate point='0.0 0.0 1.0 0.0 1.0 1.0 0.0 1.0'/>
<Coordinate point='-1.51 0.05 0.0 1.51 0.05 0.0 1.51 3.05 0.0 -1.51 3.05 0.0'/>
</IndexedFaceSet>
</Shape>
</Billboard>
</Transform>
<Transform>
<Billboard DEF='Tree'>
<Shape>
<Appearance>
<ImageTexture
  url=' "tree1.jpg " "https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Siggraph98Course/tree1.jpg " ' />
</Appearance>
<IndexedFaceSet USE=' TreeFace'/>
</Shape>
</Billboard>
</Transform>
<Transform translation='-3.5 0.0 0.0'>
<Transform USE=' Planter'/>
<Billboard>
<Shape>
<Appearance>
<Material/>
</Appearance>
<IndexedFaceSet USE=' TreeFace'/>
</Shape>
</Billboard>
</Transform>
</Scene>
</X3D>
<!--
to top <!-- Index for DEF nodes: Brick, Concrete, Planter, PlanterCoordinates, Tree, TreeFace
Index for Viewpoint node: Viewpoint_1
-->
-->

<!-- Online at
https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Siggraph98Course/TreeWallIndex.html -->
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