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        ],
        "meta": [
          {
            "@name":"title",
            "@content":"Sardine.x3d"
          },
          {
            "@name":"description",
            "@content":"One Sardine, three levels of detail."
          },
          {
            "@name":"creator",
            "@content":"Stewart Liles, Sean Hynes"
          },
          {
            "@name":"created",
            "@content":"25 September 1998"
          },
          {
            "@name":"modified",
            "@content":"28 October 2023"
          },
          {
            "@name":"reference",
            "@content":"https://www.web3d.org/x3d/content/examples/X3dForWebAuthors/KelpForestExhibit/KelpForestDesignPaperWeb3dSymposiumFebruary2002.pdf"
          },
          {
            "@name":"reference",
            "@content":"https://www.web3d.org/x3d/content/examples/X3dForWebAuthors/KelpForestExhibit/Teaching3d-KelpForestCaseStudy.pdf"
          },
          {
            "@name":"accessRights",
            "@content":"All content has permissions for free use. Please provide credit to the Naval Postgraduate School (NPS) Modeling Virtual Environments and Simulation (MOVES) Institute."
          },
          {
            "@name":"identifier",
            "@content":"https://www.web3d.org/x3d/content/examples/X3dForWebAuthors/KelpForestExhibit/Sardine.x3d"
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          {
            "@name":"license",
            "@content":"../license.html"
          },
          {
            "@name":"translated",
            "@content":"17 April 2026"
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    "Scene": {
        "-children":[
          { "LOD":
            {
              "@DEF":"Sardines",
              "@range":[15,30,60],
              "-children":[
                {
                  "#comment":"Three levels of detail, then disappears."
                },
                { "Group":
                  {
                    "@DEF":"Near",
                    "-children":[
                      {
                        "#comment":"High resolution sardine."
                      },
                      { "Transform":
                        {
                          "@scale":[0.25,0.1,0.25],
                          "-children":[
                            { "Shape":
                              {
                                "-appearance":
                                  { "Appearance":
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                                      "-material":
                                        { "Material":
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                                            "@shininess":0.8,
                                            "@specularColor":[0.76,0.76,0.76]
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                                    }
                                  },
                                "-geometry":
                                  { "IndexedFaceSet":
                                    {
                                      "@DEF":"SardineIndex",
                                      "@ccw":false,
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                                      "@creaseAngle":3.14,
                                      "@solid":false,
                                      "-coord":
                                        { "Coordinate":
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                                            "@DEF":"Sardine",
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                            },
                            { "Transform":
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                                "@DEF":"LeftEye",
                                "@translation":[-0.25,0.2,-0.55],
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                                      "@DEF":"Eye",
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                                      "-geometry":
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                                            "@radius":0.1
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                                "@DEF":"RightEye",
                                "@translation":[0.25,0.2,-0.55],
                                "-children":[
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                                      "@USE":"Eye"
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                                "@DEF":"DorsalFin",
                                "-children":[
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                                      "-appearance":
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                                                  "@shininess":0.7,
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                                      "-geometry":
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                                            "@crossSection":[0,0.9,0.25,0,1.3,0.5,0,1.6,0.6,0,1.3,0.7,0,1.1,0.8,0,1,0.9,0,0.95,1,0,0.7,1],
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                                "-children":[
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                                      "-appearance":
                                        { "Appearance":
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                                            "-material":
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                                        },
                                      "-geometry":
                                        { "IndexedFaceSet":
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                                            "@coordIndex":[0,3,2,-1,1,3,0,-1,1,0,2,-1,3,1,2,-1],
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                                                  "@point":[0.1,-0.65,0.5,0.1,-0.7,0.5,0.1,-0.7,0.8,0.15,-1.1,1.2]
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                                        }
                                    }
                                  },
                                  { "Shape":
                                    {
                                      "-appearance":
                                        { "Appearance":
                                          {
                                            "-material":
                                              { "Material":
                                                {
                                                  "@diffuseColor":[0.61,0.61,0.61],
                                                  "@emissiveColor":[0.4,0.4,0.4],
                                                  "@shininess":0.4,
                                                  "@specularColor":[0.75,0.75,0.75]
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                                              }
                                          }
                                        },
                                      "-geometry":
                                        { "IndexedFaceSet":
                                          {
                                            "@coordIndex":[0,3,2,-1,1,3,0,-1,1,0,2,-1,3,1,2,-1],
                                            "-coord":
                                              { "Coordinate":
                                                {
                                                  "@point":[-0.1,-0.65,0.5,-0.1,-0.7,0.5,-0.1,-0.7,0.8,-0.15,-1.1,1.2]
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                                ]
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                            }
                          ]
                        }
                      }
                    ]
                  }
                },
                { "Group":
                  {
                    "@DEF":"Medium",
                    "-children":[
                      {
                        "#comment":"Medium resolution sardine."
                      },
                      { "Transform":
                        {
                          "@scale":[0.25,0.1,0.25],
                          "-children":[
                            { "Shape":
                              {
                                "-appearance":
                                  { "Appearance":
                                    {
                                      "-material":
                                        { "Material":
                                          {
                                            "@diffuseColor":[0.61,0.61,0.61],
                                            "@shininess":0.9,
                                            "@specularColor":[0.76,0.76,0.76]
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                                        }
                                    }
                                  },
                                "-geometry":
                                  { "IndexedFaceSet":
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                                      "@USE":"SardineIndex"
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                                  }
                              }
                            }
                          ]
                        }
                      }
                    ]
                  }
                },
                { "Group":
                  {
                    "@DEF":"Far",
                    "-children":[
                      {
                        "#comment":"Low resolution sardine."
                      },
                      { "Transform":
                        {
                          "@rotation":[1,0,0,-1.57],
                          "@scale":[0.3,0.25,0.25],
                          "-children":[
                            { "Shape":
                              {
                                "-appearance":
                                  { "Appearance":
                                    {
                                      "-material":
                                        { "Material":
                                          {
                                            "@diffuseColor":[0.7,0.7,0.7]
                                          }
                                        },
                                      "-texture":
                                        { "ImageTexture":
                                          {
                                            "@url":["SardineScalesPatch.jpg","https://www.web3d.org/x3d/content/examples/X3dForWebAuthors/KelpForestExhibit/SardineScalesPatch.jpg"]
                                          }
                                        }
                                    }
                                  },
                                "-geometry":
                                  { "Extrusion":
                                    {
                                      "@creaseAngle":1.57,
                                      "@crossSection":[-0.1,1.0,0.1,1,0.5,0.5,0.5,-0.5,0.1,-1,-0.1,-1,-0.5,-0.5,-0.5,0.5,-0.1,1],
                                      "@scale":[0.03,0.03,0.3,0.4,0.1,0.2,0.1,0.15,0.03,0.4],
                                      "@spine":[0,2.51,0,0,1.80,0,0,0.5,0,0,0,0,0,-0.6,0]
                                    }
                                  }
                              }
                            }
                          ]
                        }
                      }
                    ]
                  }
                },
                { "WorldInfo":
                  {
                    "@info":["null"],
                    "-children":[
                      {
                        "#comment":"Lowest resolution node is nothing."
                      }
                    ]
                  }
                }
              ]
            }
          },
          {
            "#comment":"<Group DEF='TestViewpoints'> <Viewpoint description='Hi Res' orientation='0 1 0 1.57' position='2 0 0'/> <Viewpoint description='Med Res' orientation='0 1 0 1.57' position='15 0 0'/> <Viewpoint description='Low Res' orientation='0 1 0 1.57' position='30 0 0'/> </Group>"
          },
          { "ViewpointGroup":
            {
              "@DEF":"HideViewpointsWhenDistant",
              "@description":"Sardine views up close",
              "@size":[20,20,20],
              "-children":[
                {
                  "#comment":"Viewpoints around sardine at very close range, one good viewpoint fairly close to sardine, and no viewpoints further away."
                },
                { "Viewpoint":
                  {
                    "@description":"Closeup view right",
                    "@orientation":[0,1,0,1.57],
                    "@position":[2,0,0]
                  }
                },
                { "Viewpoint":
                  {
                    "@description":"Closeup view right face",
                    "@orientation":[0,1,0,2.355],
                    "@position":[2,0,-2]
                  }
                },
                { "Viewpoint":
                  {
                    "@description":"Closeup view face to face",
                    "@orientation":[0,1,0,3.14],
                    "@position":[0,0,-2]
                  }
                },
                { "Viewpoint":
                  {
                    "@description":"Closeup view left face",
                    "@orientation":[0,1,0,3.825],
                    "@position":[-2,0,-2]
                  }
                },
                { "Viewpoint":
                  {
                    "@description":"Closeup view left",
                    "@orientation":[0,1,0,-1.57],
                    "@position":[-2,0,0]
                  }
                },
                { "Viewpoint":
                  {
                    "@description":"Closeup view left tail",
                    "@orientation":[0,1,0,-0.785],
                    "@position":[-2,0,2]
                  }
                },
                { "Viewpoint":
                  {
                    "@description":"Closeup view tail",
                    "@position":[0,0,2]
                  }
                },
                { "Viewpoint":
                  {
                    "@description":"Closeup view right tail",
                    "@orientation":[0,1,0,0.785],
                    "@position":[2,0,2]
                  }
                },
                { "Viewpoint":
                  {
                    "@description":"Closeup view top looking down",
                    "@orientation":[1,0,0,-1.57],
                    "@position":[0,2,0]
                  }
                },
                { "Viewpoint":
                  {
                    "@description":"Closeup view bottom looking up",
                    "@orientation":[1,0,0,1.57],
                    "@position":[0,-2,0]
                  }
                }
              ]
            }
          },
          { "Viewpoint":
            {
              "@description":"Single viewpoint when fairly close to sardine",
              "@orientation":[0,1,0,1.57],
              "@position":[10,0,0]
            }
          },
          { "TimeSensor":
            {
              "@DEF":"Clock",
              "@cycleInterval":0.5,
              "@loop":true
            }
          },
          { "CoordinateInterpolator":
            {
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          { "ROUTE":
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            }
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    }
  }
}