X3D Model Documentation: l_tarsal_proximal_phalanx_2.x3d

  1  <?xml version="1.0" encoding="UTF-8"?>
  2  <!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 4.0//EN" "https://www.web3d.org/specifications/x3d-4.0.dtd">
  3  <X3D profile='Interactive' version='4.0 xmlns:xsd='http://www.w3.org/2001/XMLSchema-instance' xsd:noNamespaceSchemaLocation='https://www.web3d.org/specifications/x3d-4.0.xsd'>
  4       <head>
  5            <meta name='titlecontent=' l_tarsal_proximal_phalanx_2.x3d '/>
  6            <meta name='descriptioncontent='bone in foot, LOA-1'/>
  7            <meta name='creatorcontent='Don Brutzman, Joe Williams, John Carlson, Damon Hernandez'/>
  8            <meta name='translatorcontent='Don Brutzman'/>
  9            <meta name='createdcontent='5 December 2013'/>
 10            <meta name='translatedcontent='5 March 2026'/>
 11            <meta name='modifiedcontent='25 April 2026'/>
 12            <meta name='referencecontent=' originals/lfpprox2.x3d '/>
 13            <meta name='referencecontent='https://en.wikipedia.org/wiki/Phalanx_bone'/>
 14            <meta name='referencecontent='https://en.wikipedia.org/wiki/List_of_bones_of_the_human_skeleton'/>
 15            <meta name='referencecontent='usage examples https://www.web3d.org/x3d/content/examples/HumanoidAnimation/Medical'/>
 16            <meta name='generatorcontent='X3D-Edit 4.0, https://www.web3d.org/x3d/tools/X3D-Edit'/>
 17            <meta name='generatorcontent=' X3D Tidy, https://www.web3d.org/x3d/stylesheets/X3dTidy.html '/>
 18            <meta name='identifiercontent=' https://www.web3d.org/x3d/content/examples/HumanoidAnimation/Bones/l_tarsal_proximal_phalanx_2.x3d '/>
 19            <meta name='licensecontent='../license.html'/>
 20       </head>
<!--

Event Graph ROUTE Table shows event connections.

--> <!-- to top DEF nodes index: AxesDisplay, BoneMaterial, CenterOfRotationForJoint, HiddenLight, l_tarsal_proximal_phalanx_2, l_tarsal_proximal_phalanx_2_coordinate, l_tarsal_proximal_phalanx_2_geometry, UserTouchSensor, UserTouchState

Index for Viewpoint node: HiddenViewpoint

-->
 21       <Scene>
 22            <WorldInfo title='l_tarsal_proximal_phalanx_2.x3d'/>
 23            <Background skyColor='0.858824 1 0.94902'/>
 24            <!-- user hover lights bone and reveals description, user selection/deselection temporarily binds/unbinds close-up hidden viewpoint -->
 25 
          <!-- ROUTE information for UserTouchSensor node:  [from isActive to UserTouchState.set_boolean ] -->
          <TouchSensor DEF='UserTouchSensordescription='bone l_tarsal_proximal_phalanx_2 LOA-1'/>
 26            <Transform DEF='l_tarsal_proximal_phalanx_2translation='0.0890 0.0114 0.0703'>
 27 
               <!-- ROUTE information for UserTouchState node:  [from UserTouchSensor.isActive to set_boolean ] [from toggle to HiddenViewpoint.set_bind ] [from toggle to HiddenLight.on ] [from toggle to CenterOfRotationForJoint.visible ] -->
               <BooleanToggle DEF='UserTouchStatecontainerField='children'/>
 28                 < ROUTE  fromNode='UserTouchSensor' fromField='isActive' toNode='UserTouchState' toField='set_boolean'/>
 29 
               <!-- ROUTE information for HiddenViewpoint node:  [from UserTouchState.toggle to set_bind ] -->
               <Viewpoint DEF='HiddenViewpointnearDistance='0.001position='0 0 0.2retainUserOffsets='true'>
 30                      <NavigationInfo containerField='navigationInfotransitionType='"ANIMATE"type='"EXAMINE"'/>
 31                 </Viewpoint>
 32                 < ROUTE  fromNode='UserTouchState' fromField='toggle' toNode='HiddenViewpoint' toField='set_bind'/>
 33 
               <!-- ROUTE information for HiddenLight node:  [from UserTouchState.toggle to on ] -->
               <DirectionalLight DEF='HiddenLightambientIntensity='1color='0.1 0.1 1on='false'/>
 34                 < ROUTE  fromNode='UserTouchState' fromField='toggle' toNode='HiddenLight' toField='on'/>
 35 
               <!-- ROUTE information for CenterOfRotationForJoint node:  [from UserTouchState.toggle to visible ] -->
               <Transform DEF='CenterOfRotationForJointscale='0.4 0.4 0.4translation='0 0.005 -0.013visible='false'>
 36                      <!-- insert computations for joint center of rotation here -->
 37                      <Inline DEF='AxesDisplaydescription='RGB display axes showing XYZ direction in local coordinate system'   url=' "AxesDisplay.x3d"'/>
 38                 </Transform>
 39                 < ROUTE  fromNode='UserTouchState' fromField='toggle' toNode='CenterOfRotationForJoint' toField='visible'/>
 40                 <Shape>
 41                      <Appearance>
 42                           <Material DEF='BoneMaterialambientIntensity='0.965diffuseColor='1 0.9765 0.8667shininess='0.05specularColor='0.349 0.349 0.349'/>
 43                      </Appearance>
 44                      <IndexedFaceSet DEF='l_tarsal_proximal_phalanx_2_geometrycreaseAngle='1.571coordIndex='0 1 2 -1 3 4 5 -1 6 7 8 -1 9 10 11 -1 12 13 14 -1 15 16 17 -1 15 18 16 -1 19 20 21 -1 22 23 24 -1 23 25 26 -1 23 22 25 -1 27 23 28 -1 29 30 31 -1 32 33 34 -1 35 36 9 -1 37 0 2 -1 38 39 40 -1 41 42 43 -1 44 45 46 -1 47 48 46 -1 49 50 51 -1 52 50 53 -1 54 50 55 -1 56 57 51 -1 56 58 57 -1 3 59 60 -1 3 61 59 -1 4 62 5 -1 63 64 65 -1 63 66 64 -1 67 68 69 -1 67 70 68 -1 71 72 73 -1 73 74 71 -1 2 41 43 -1 75 76 77 -1 75 37 76 -1 78 79 80 -1 80 14 78 -1 81 82 24 -1 83 84 85 -1 85 86 83 -1 87 88 89 -1 87 12 88 -1 90 91 92 -1 91 93 92 -1 21 94 95 -1 94 96 95 -1 97 76 43 -1 97 78 76 -1 75 98 99 -1 98 100 99 -1 101 31 102 -1 103 39 38 -1 104 0 105 -1 104 106 0 -1 56 54 58 -1 54 107 58 -1 108 45 109 -1 66 45 64 -1 44 46 48 -1 110 45 111 -1 112 113 114 -1 113 115 114 -1 8 116 117 -1 69 118 67 -1 71 119 120 -1 72 11 121 -1 121 122 72 -1 11 10 121 -1 123 36 124 -1 125 126 127 -1 128 96 129 -1 128 130 96 -1 36 123 9 -1 21 20 15 -1 20 131 15 -1 74 119 71 -1 71 125 127 -1 132 74 133 -1 132 119 74 -1 67 133 74 -1 134 69 135 -1 83 8 84 -1 83 116 8 -1 136 137 68 -1 68 138 136 -1 138 139 136 -1 138 140 139 -1 141 142 73 -1 143 142 144 -1 142 141 144 -1 111 45 44 -1 46 66 47 -1 64 45 108 -1 109 45 110 -1 24 82 65 -1 65 22 24 -1 145 3 5 -1 145 146 3 -1 102 30 34 -1 38 40 1 -1 147 4 105 -1 147 62 4 -1 37 43 76 -1 37 2 43 -1 82 63 65 -1 82 148 63 -1 47 78 48 -1 47 79 78 -1 15 17 21 -1 17 94 21 -1 149 150 13 -1 151 98 152 -1 98 153 152 -1 133 67 118 -1 80 148 82 -1 82 81 80 -1 99 147 75 -1 147 37 75 -1 62 154 28 -1 155 97 43 -1 127 126 9 -1 9 11 127 -1 63 47 66 -1 51 50 56 -1 148 79 47 -1 47 63 148 -1 48 101 102 -1 102 44 48 -1 4 3 60 -1 56 50 54 -1 55 50 52 -1 53 50 49 -1 80 79 148 -1 106 49 156 -1 46 45 66 -1 102 31 30 -1 43 42 155 -1 97 48 78 -1 125 71 120 -1 117 116 157 -1 29 40 39 -1 32 103 158 -1 26 145 23 -1 26 146 145 -1 27 24 23 -1 145 28 23 -1 123 10 9 -1 159 93 152 -1 70 73 142 -1 97 101 48 -1 92 159 113 -1 92 93 159 -1 112 160 161 -1 112 162 160 -1 149 12 87 -1 149 13 12 -1 163 164 165 -1 166 164 163 -1 24 167 81 -1 167 24 27 -1 146 166 168 -1 166 146 26 -1 169 32 158 -1 32 169 163 -1 39 32 29 -1 39 103 32 -1 170 125 120 -1 86 125 170 -1 171 116 83 -1 171 157 116 -1 158 38 172 -1 38 158 103 -1 155 29 31 -1 42 29 155 -1 53 106 104 -1 53 49 106 -1 60 173 4 -1 60 174 173 -1 58 59 175 -1 59 58 107 -1 57 176 156 -1 177 176 57 -1 177 178 172 -1 178 177 175 -1 40 2 1 -1 40 41 2 -1 179 44 102 -1 111 44 179 -1 109 180 181 -1 109 110 180 -1 182 64 108 -1 64 182 65 -1 176 172 38 -1 177 172 176 -1 72 127 11 -1 72 71 127 -1 9 85 35 -1 126 85 9 -1 8 183 84 -1 8 7 183 -1 117 137 184 -1 117 135 137 -1 99 62 147 -1 154 62 99 -1 133 185 132 -1 133 118 185 -1 100 151 186 -1 100 98 151 -1 152 13 150 -1 152 153 13 -1 128 187 188 -1 129 187 128 -1 189 190 191 -1 192 190 189 -1 115 16 18 -1 115 193 16 -1 130 192 194 -1 130 190 192 -1 90 161 195 -1 92 161 90 -1 12 80 88 -1 80 12 14 -1 88 81 187 -1 81 88 80 -1 188 81 167 -1 188 187 81 -1 196 167 154 -1 196 188 167 -1 37 105 0 -1 37 147 105 -1 173 55 52 -1 55 173 174 -1 178 158 172 -1 169 158 178 -1 3 168 61 -1 146 168 3 -1 62 145 5 -1 28 145 62 -1 25 65 182 -1 22 65 25 -1 165 181 180 -1 164 181 165 -1 114 18 124 -1 18 114 115 -1 7 197 183 -1 7 162 197 -1 144 194 143 -1 194 144 95 -1 198 191 190 -1 198 186 191 -1 194 140 143 -1 194 192 140 -1 189 195 139 -1 189 90 195 -1 143 138 142 -1 143 140 138 -1 195 160 199 -1 195 161 160 -1 139 199 136 -1 139 195 199 -1 184 136 199 -1 137 136 184 -1 134 117 157 -1 134 135 117 -1 118 134 185 -1 134 118 69 -1 170 119 132 -1 170 120 119 -1 197 124 36 -1 124 197 114 -1 94 129 96 -1 94 89 129 -1 122 144 141 -1 122 19 144 -1 17 89 94 -1 17 87 89 -1 77 98 75 -1 77 153 98 -1 126 86 85 -1 126 125 86 -1 10 20 121 -1 131 20 10 -1 19 95 144 -1 19 21 95 -1 122 73 72 -1 122 141 73 -1 36 183 197 -1 36 35 183 -1 157 185 134 -1 185 157 171 -1 6 199 160 -1 184 199 6 -1 142 68 70 -1 142 138 68 -1 139 192 189 -1 140 192 139 -1 186 91 191 -1 151 91 186 -1 190 128 198 -1 190 130 128 -1 162 114 197 -1 162 112 114 -1 159 150 193 -1 159 152 150 -1 33 180 179 -1 165 180 33 -1 181 25 182 -1 164 25 181 -1 169 61 168 -1 169 178 61 -1 51 156 49 -1 156 51 57 -1 107 55 174 -1 54 55 107 -1 173 105 4 -1 173 104 105 -1 0 156 176 -1 156 0 106 -1 154 100 196 -1 154 99 100 -1 14 153 77 -1 14 13 153 -1 193 149 16 -1 149 193 150 -1 152 91 151 -1 152 93 91 -1 95 130 194 -1 95 96 130 -1 113 193 115 -1 113 159 193 -1 191 90 189 -1 191 91 90 -1 198 188 196 -1 128 188 198 -1 89 187 129 -1 89 88 187 -1 196 186 198 -1 196 100 186 -1 171 132 185 -1 132 171 170 -1 78 77 76 -1 77 78 14 -1 70 74 73 -1 74 70 67 -1 135 68 137 -1 135 69 68 -1 117 6 8 -1 117 184 6 -1 35 84 183 -1 35 85 84 -1 97 31 101 -1 97 155 31 -1 108 181 182 -1 108 109 181 -1 180 111 179 -1 180 110 111 -1 176 1 0 -1 176 38 1 -1 175 61 178 -1 61 175 59 -1 57 175 177 -1 175 57 58 -1 59 174 60 -1 59 107 174 -1 52 104 173 -1 52 53 104 -1 29 41 40 -1 29 42 41 -1 102 33 179 -1 33 102 34 -1 86 171 83 -1 86 170 171 -1 32 165 33 -1 163 165 32 -1 32 30 29 -1 32 34 30 -1 163 168 166 -1 163 169 168 -1 27 154 167 -1 27 28 154 -1 164 26 25 -1 26 164 166 -1 20 122 121 -1 122 20 19 -1 124 15 131 -1 15 124 18 -1 131 123 124 -1 131 10 123 -1 16 87 17 -1 16 149 87 -1 6 162 7 -1 160 162 6 -1 113 161 92 -1 112 161 113 -1'>
 45                           <Coordinate DEF='l_tarsal_proximal_phalanx_2_coordinatepoint='0.0063 -0.0063 0.0097 0.0058 -0.0069 0.0103 0.0054 -0.0064 0.0098 0.0067 -0.0033 0.0136 0.0064 -0.0033 0.0105 0.0063 -0.0026 0.0107 0.0018 -0.0014 -0.0146 0.0008 -0.0017 -0.0140 0.0010 -0.0011 -0.0148 -0.0060 0.0011 -0.0116 -0.0059 0.0006 -0.0086 -0.0074 0.0030 -0.0116 0.0005 -0.0023 0.0033 0.0009 -0.0026 0.0032 0.0009 -0.0031 0.0055 -0.0025 -0.0004 -0.0037 -0.0008 -0.0017 -0.0020 -0.0013 -0.0010 -0.0018 -0.0019 -0.0010 -0.0044 -0.0034 0.0023 -0.0048 -0.0039 0.0011 -0.0052 -0.0023 0.0014 -0.0028 0.0016 -0.0019 0.0112 0.0034 -0.0017 0.0110 0.0009 -0.0010 0.0081 0.0016 -0.0025 0.0132 0.0033 -0.0028 0.0132 0.0030 -0.0006 0.0082 0.0048 -0.0014 0.0081 0.0030 -0.0060 0.0118 0.0014 -0.0066 0.0118 0.0018 -0.0061 0.0113 0.0032 -0.0070 0.0140 0.0013 -0.0074 0.0142 0.0015 -0.0072 0.0131 -0.0044 0.0000 -0.0121 -0.0043 -0.0002 -0.0101 0.0053 -0.0048 0.0074 0.0059 -0.0082 0.0117 0.0044 -0.0071 0.0118 0.0043 -0.0066 0.0113 0.0043 -0.0062 0.0107 0.0030 -0.0057 0.0110 0.0029 -0.0052 0.0102 -0.0006 -0.0069 0.0118 -0.0013 -0.0042 0.0125 -0.0006 -0.0051 0.0101 -0.0010 -0.0030 0.0095 0.0000 -0.0052 0.0098 0.0072 -0.0059 0.0123 0.0074 -0.0055 0.0126 0.0073 -0.0061 0.0127 0.0073 -0.0052 0.0123 0.0072 -0.0054 0.0122 0.0074 -0.0053 0.0132 0.0073 -0.0050 0.0127 0.0074 -0.0057 0.0132 0.0072 -0.0071 0.0131 0.0072 -0.0060 0.0139 0.0074 -0.0048 0.0147 0.0072 -0.0036 0.0132 0.0071 -0.0047 0.0151 0.0055 -0.0018 0.0079 -0.0010 -0.0023 0.0095 -0.0009 -0.0024 0.0115 -0.0003 -0.0020 0.0113 -0.0011 -0.0029 0.0098 0.0015 0.0079 -0.0085 0.0048 0.0066 -0.0101 0.0043 0.0066 -0.0104 0.0016 0.0079 -0.0082 -0.0071 0.0058 -0.0117 -0.0072 0.0057 -0.0112 -0.0026 0.0085 -0.0086 -0.0025 0.0084 -0.0090 0.0045 -0.0036 0.0052 0.0030 -0.0043 0.0077 0.0029 -0.0037 0.0053 0.0009 -0.0035 0.0077 -0.0001 -0.0024 0.0077 -0.0000 -0.0014 0.0058 0.0004 0.0001 0.0062 0.0001 -0.0012 0.0081 -0.0025 0.0008 -0.0130 -0.0024 0.0000 -0.0126 -0.0044 0.0003 -0.0124 -0.0044 0.0018 -0.0128 -0.0004 -0.0016 0.0009 -0.0005 -0.0008 0.0037 -0.0006 -0.0002 0.0014 0.0033 -0.0007 -0.0063 0.0033 -0.0015 -0.0029 0.0021 -0.0016 -0.0062 0.0021 -0.0020 -0.0028 -0.0014 0.0005 -0.0008 -0.0005 0.0038 -0.0023 -0.0000 0.0029 -0.0003 0.0009 -0.0055 0.0098 0.0042 -0.0029 0.0028 0.0054 -0.0025 0.0055 0.0048 -0.0017 0.0031 0.0004 -0.0059 0.0103 -0.0001 -0.0073 0.0118 0.0044 -0.0077 0.0130 0.0069 -0.0051 0.0110 0.0068 -0.0048 0.0096 0.0067 -0.0060 0.0111 0.0074 -0.0051 0.0137 -0.0009 -0.0027 0.0130 -0.0010 -0.0037 0.0142 -0.0013 -0.0059 0.0152 -0.0011 -0.0072 0.0142 0.0013 -0.0017 -0.0092 0.0013 -0.0017 -0.0060 -0.0013 -0.0005 -0.0076 -0.0009 -0.0010 -0.0052 0.0014 -0.0001 -0.0148 0.0028 0.0007 -0.0156 0.0013 0.0068 -0.0095 -0.0052 0.0053 -0.0117 -0.0058 0.0037 -0.0124 -0.0059 0.0017 -0.0077 -0.0049 0.0035 -0.0071 -0.0053 0.0000 -0.0094 -0.0030 -0.0004 -0.0064 -0.0059 0.0031 -0.0125 -0.0060 0.0015 -0.0119 -0.0074 0.0032 -0.0120 0.0024 0.0026 0.0018 0.0004 0.0021 0.0020 0.0021 0.0040 -0.0005 -0.0039 0.0003 -0.0057 -0.0029 0.0044 -0.0115 -0.0001 0.0075 -0.0092 0.0029 0.0038 -0.0127 0.0040 0.0036 -0.0137 0.0048 0.0030 -0.0105 0.0045 0.0034 -0.0135 0.0042 0.0060 -0.0082 0.0043 0.0022 -0.0083 0.0039 0.0051 -0.0059 -0.0019 0.0063 -0.0063 0.0018 0.0073 -0.0067 0.0016 0.0062 -0.0044 -0.0011 0.0048 -0.0042 0.0048 -0.0021 0.0108 0.0050 -0.0030 0.0135 0.0058 -0.0035 0.0077 -0.0004 -0.0017 0.0078 0.0001 -0.0022 0.0005 0.0005 -0.0022 0.0005 0.0038 -0.0022 -0.0000 0.0024 -0.0027 -0.0000 0.0028 -0.0031 0.0029 0.0050 -0.0006 0.0059 0.0020 -0.0058 0.0108 0.0068 -0.0069 0.0121 0.0015 0.0008 -0.0146 0.0048 -0.0078 0.0140 0.0015 -0.0020 -0.0028 0.0019 -0.0020 -0.0126 0.0020 -0.0016 -0.0091 0.0010 -0.0022 -0.0125 0.0033 -0.0057 0.0149 0.0015 -0.0036 0.0147 0.0013 -0.0059 0.0155 0.0033 -0.0038 0.0146 0.0029 0.0002 0.0060 0.0052 -0.0042 0.0150 0.0048 -0.0061 0.0152 -0.0040 0.0024 -0.0127 -0.0021 0.0014 -0.0130 0.0066 -0.0085 0.0137 0.0069 -0.0043 0.0115 0.0072 -0.0044 0.0130 0.0072 -0.0063 0.0147 0.0064 -0.0079 0.0118 0.0069 -0.0082 0.0135 0.0067 -0.0064 0.0151 -0.0008 -0.0075 0.0145 -0.0006 -0.0060 0.0156 -0.0004 -0.0035 0.0146 -0.0004 -0.0023 0.0130 -0.0024 -0.0003 -0.0123 0.0033 0.0004 -0.0154 -0.0005 0.0038 -0.0116 0.0044 -0.0008 0.0001 0.0004 0.0011 0.0042 0.0026 0.0012 0.0040 0.0043 0.0013 -0.0058 0.0037 0.0032 -0.0013 0.0040 0.0001 -0.0028 0.0038 0.0042 -0.0037 -0.0003 -0.0017 -0.0023 0.0019 0.0053 -0.0028 0.0033 -0.0004 -0.0091 0.0044 0.0005 0.0037 -0.0021 -0.0006 -0.0109 0.0040 0.0019 0.0011 0.0037 -0.0002 -0.0128'/>
 46                      </IndexedFaceSet>
 47                 </Shape>
 48            </Transform>
 49       </Scene>
 50  </X3D>
<!--

Event Graph ROUTE Table shows event connections.

--> <!-- to top DEF nodes index: AxesDisplay, BoneMaterial, CenterOfRotationForJoint, HiddenLight, l_tarsal_proximal_phalanx_2, l_tarsal_proximal_phalanx_2_coordinate, l_tarsal_proximal_phalanx_2_geometry, UserTouchSensor, UserTouchState

Index for Viewpoint node: HiddenViewpoint

-->
X3D Tooltips element index: Appearance, Background, BooleanToggle, Coordinate, DirectionalLight, head, IndexedFaceSet, Inline, Material, meta, NavigationInfo, ROUTE, Scene, Shape, TouchSensor, Transform, Viewpoint, WorldInfo, X3D,
plus documentation for accessType definitions, type definitions, XML data types, and field types

Event Graph ROUTE Table entries with 4 ROUTE connections total, showing X3D event-model relationships for this scene.

Each row shows an event cascade that may occur during a single timestamp interval between frame renderings, as part of the X3D execution model.

UserTouchSensor
TouchSensor
isActive
SFBool

ROUTE
event to
(1)
UserTouchState
BooleanToggle
set_boolean
SFBool
then
 
 
 
UserTouchState
BooleanToggle
toggle
SFBool

ROUTE
event to
(2)
HiddenViewpoint
Viewpoint
set_bind
SFBool
  then
 
 
 
UserTouchState
BooleanToggle
toggle
SFBool

ROUTE
event to
(2)
HiddenLight
DirectionalLight
on
SFBool
  then
 
 
 
UserTouchState
BooleanToggle
toggle
SFBool

ROUTE
event to
(2)
CenterOfRotationForJoint
Transform
visible
SFBool

Additional guidance on X3D animation can be found in the 10-Step Animation Design Process and Event Tracing hint sheets.
Have fun with X3D! 😀

-->
<!-- Online at
https://www.web3d.org/x3d/content/examples/HumanoidAnimation/Bones/l_tarsal_proximal_phalanx_2Index.html -->
<!-- SourceForge version control Version control at    
https://sourceforge.net/p/x3d/code/HEAD/tree/www.web3d.org/x3d/content/examples/HumanoidAnimation/Bones/l_tarsal_proximal_phalanx_2.x3d -->

<!-- Color-coding legend: X3D terminology <X3dNode DEF='idNamefield='value'/> matches XML terminology <XmlElement DEF='idNameattribute='value'/>
(Light-blue background: event-based behavior node or statement) (Grey background inside box: inserted documentation) (Magenta background: X3D Extensibility)
-->

to top <!-- For additional help information about X3D scenes, please see X3D Tooltips, X3D Resources, and X3D Scene Authoring Hints. -->