<table bgColor="#ffffff" border="0" width="100%"> <tbody> <tr> <td align="left" cellpadding="10"> <a href="index.html"><img alt="User Interactivity Sensor Nodes" title="User Interactivity Sensor Nodes" border="0" hspace="10" src="UserInteractivitySensorNodesModified.png" width="220" height="137" align="left"/></a> </td> <td> <p> A variety of sensors detect user interactivity with a scene, allowing authors to define animation responses in a device-independent, display-independent way. </p> <p> User interactivity is accomplished by sensing user actions, which create events that are sent via <a href="https://www.web3d.org/x3d/content/X3dTooltips.html#ROUTE" target="X3dTooltips" title="X3D Tooltip">ROUTE</a> connections. </p> <p> Sensor output values are produced by <a href="https://www.web3d.org/x3d/content/X3dTooltips.html#CylinderSensor" target="X3dTooltips" title="X3D Tooltip">CylinderSensor</a>, <a href="https://www.web3d.org/x3d/content/X3dTooltips.html#KeySensor" target="X3dTooltips" title="X3D Tooltip">KeySensor</a>, <a href="https://www.web3d.org/x3d/content/X3dTooltips.html#PlaneSensor" target="X3dTooltips" title="X3D Tooltip">PlaneSensor</a></a>, <a href="https://www.web3d.org/x3d/content/X3dTooltips.html#StringSensor" target="X3dTooltips" title="X3D Tooltip">StringSensor</a> and <a href="https://www.web3d.org/x3d/content/X3dTooltips.html#TouchSensor" target="X3dTooltips" title="X3D Tooltip">TouchSensor</a> nodes. </p> <p> The supporting <a href="https://x3dGraphics.com/slidesets/X3dForWebAuthors/Chapter08UserInteractivity.pdf" target="X3dChapterSlideset">Chapter&nbsp;8 slideset</a> and course videos (<a href="https://www.movesinstitute.org/Video/Courses/X3dForWebAuthors/X3dForWebAuthorsVideo.html#8" target="X3dChapterVideos">NPS</a>, <a href="https://www.youtube.com/playlist?list=PLuSIsM-86sinqMN552yQfjaV_DKI53D7i" target="X3dChapterYouTubeVideos">YouTube</a>) for <i>X3D for Web Authors</i> are available online via <a href="https://x3dGraphics.com" target="_blank">X3dGraphics.com</a>. </p> </td> </tr> </tbody> </table>