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<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta
      name="viewport"
      content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no"
    />
    <meta name="description" content="Post processing effects." />
    <meta
      name="cesium-sandcastle-labels"
      content="Showcases, Post Processing"
    />
    <title>Cesium Demo</title>
    <script type="text/javascript" src="../Sandcastle-header.js"></script>
    <script
      type="text/javascript"
      src="../../../Build/CesiumUnminified/Cesium.js"
      nomodule
    ></script>
    <script type="module" src="../load-cesium-es6.js"></script>
  </head>
  <body
    class="sandcastle-loading"
    data-sandcastle-bucket="bucket-requirejs.html"
  >
    <style>
      @import url(../templates/bucket.css);
    </style>
    <div id="cesiumContainer" class="fullSize"></div>
    <div id="loadingOverlay"><h1>Loading...</h1></div>
    <div id="toolbar">
      <table>
        <tbody>
          <tr>
            <td>Silhouette</td>
            <td><input type="checkbox" data-bind="checked: silhouette" /></td>
          </tr>
          <tr>
            <td>Black and White</td>
            <td>
              <input type="checkbox" data-bind="checked: blackAndWhiteShow" />
            </td>
            <td>
              <input
                type="range"
                min="1"
                max="10"
                step="1"
                data-bind="value: blackAndWhiteGradations, valueUpdate: 'input'"
              />
            </td>
          </tr>
          <tr>
            <td>Brightness</td>
            <td>
              <input type="checkbox" data-bind="checked: brightnessShow" />
            </td>
            <td>
              <input
                type="range"
                min="0"
                max="1"
                step="0.01"
                data-bind="value: brightnessValue, valueUpdate: 'input'"
              />
            </td>
          </tr>
          <tr>
            <td>Night Vision</td>
            <td>
              <input type="checkbox" data-bind="checked: nightVisionShow" />
            </td>
          </tr>
        </tbody>
      </table>
    </div>
    <script id="cesium_sandcastle_script">
      function startup(Cesium) {
        "use strict";
        //Sandcastle_Begin
        var viewer = new Cesium.Viewer("cesiumContainer", {
          shouldAnimate: true,
        });

        var position = Cesium.Cartesian3.fromDegrees(-123.0744619, 44.0503706);
        var url = "../../SampleData/models/CesiumMan/Cesium_Man.glb";
        viewer.trackedEntity = viewer.entities.add({
          name: url,
          position: position,
          model: {
            uri: url,
          },
        });

        var viewModel = {
          blackAndWhiteShow: false,
          blackAndWhiteGradations: 5.0,
          brightnessShow: false,
          brightnessValue: 0.5,
          nightVisionShow: false,
          silhouette: true,
        };

        Cesium.knockout.track(viewModel);
        var toolbar = document.getElementById("toolbar");
        Cesium.knockout.applyBindings(viewModel, toolbar);
        for (var name in viewModel) {
          if (viewModel.hasOwnProperty(name)) {
            Cesium.knockout
              .getObservable(viewModel, name)
              .subscribe(updatePostProcess);
          }
        }

        if (
          !Cesium.PostProcessStageLibrary.isSilhouetteSupported(viewer.scene)
        ) {
          window.alert(
            "This browser does not support the silhouette post process."
          );
        }

        var stages = viewer.scene.postProcessStages;
        var silhouette = stages.add(
          Cesium.PostProcessStageLibrary.createSilhouetteStage()
        );
        var blackAndWhite = stages.add(
          Cesium.PostProcessStageLibrary.createBlackAndWhiteStage()
        );
        var brightness = stages.add(
          Cesium.PostProcessStageLibrary.createBrightnessStage()
        );
        var nightVision = stages.add(
          Cesium.PostProcessStageLibrary.createNightVisionStage()
        );

        function updatePostProcess() {
          silhouette.enabled = Boolean(viewModel.silhouette);
          silhouette.uniforms.color = Cesium.Color.YELLOW;
          blackAndWhite.enabled = Boolean(viewModel.blackAndWhiteShow);
          blackAndWhite.uniforms.gradations = Number(
            viewModel.blackAndWhiteGradations
          );
          brightness.enabled = Boolean(viewModel.brightnessShow);
          brightness.uniforms.brightness = Number(viewModel.brightnessValue);
          nightVision.enabled = Boolean(viewModel.nightVisionShow);
        }
        updatePostProcess();
        //Sandcastle_End
        Sandcastle.finishedLoading();
      }
      if (typeof Cesium !== "undefined") {
        window.startupCalled = true;
        startup(Cesium);
      }
    </script>
  </body>
</html>

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