133 lines
5.3 KiB
HTML
133 lines
5.3 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no">
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<meta name="description" content="Use image-based lighting to light a model.">
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<meta name="cesium-sandcastle-labels" content="Showcases">
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<title>Cesium Demo</title>
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<script type="text/javascript" src="../Sandcastle-header.js"></script>
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<script type="text/javascript" src="../../../ThirdParty/requirejs-2.1.20/require.js"></script>
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<script type="text/javascript">
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require.config({
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baseUrl : '../../../Source',
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waitSeconds : 60
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});
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</script>
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</head>
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<body class="sandcastle-loading" data-sandcastle-bucket="bucket-requirejs.html">
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<style>
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@import url(../templates/bucket.css);
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</style>
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<div id="cesiumContainer" class="fullSize"></div>
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<div id="loadingOverlay"><h1>Loading...</h1></div>
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<div id="toolbar">
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<table><tbody>
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<tr>
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<td>Luminance at Zenith</td>
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<td>
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<input type="range" min="0.0" max="2.0" step="0.01" data-bind="value: luminanceAtZenith, valueUpdate: 'input'">
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<input type="text" size="4" data-bind="value: luminanceAtZenith">
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</td>
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</tr>
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</tbody></table>
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</div>
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<script id="cesium_sandcastle_script">
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function startup(Cesium) {
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'use strict';
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//Sandcastle_Begin
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var viewer = new Cesium.Viewer('cesiumContainer');
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var environmentMapURL = '../../SampleData/EnvironmentMap/kiara_6_afternoon_2k_ibl.ktx';
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var modelURL = '../../SampleData/models/Pawns/Pawns.glb';
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// This environment map was processed using Google's Filament project. To process your own:
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// 1 - Download the Filament release (https://github.com/google/filament/releases).
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// 2 - Run `cmgen --type=ktx --deploy=/path/to/output /path/to/image.hdr`. Other formats are also supported. Run `cmgen --help` for all options.
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// 3 - Take the generated coefficients and the KTX file and load them in CesiumJS as shown below.
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var L00 = new Cesium.Cartesian3( 0.170455150831422, 0.163151083190219, 0.196966760289763);
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var L1_1 = new Cesium.Cartesian3(-0.066550267689383, -0.022088055746048, 0.078835009246127);
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var L10 = new Cesium.Cartesian3( 0.038364097478591, 0.045714300098753, 0.063498904606215);
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var L11 = new Cesium.Cartesian3(-0.014365363312810, -0.026490613715151, -0.050189404066020);
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var L2_2 = new Cesium.Cartesian3(-0.051532786917890, -0.050777795729986, -0.056449044453032);
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var L2_1 = new Cesium.Cartesian3( 0.043454596136534, 0.046672590104157, 0.057530107646610);
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var L20 = new Cesium.Cartesian3(-0.001640466274110, 0.001286638231156, 0.007228908989616);
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var L21 = new Cesium.Cartesian3(-0.042260855700641, -0.046394335094707, -0.057562936365585);
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var L22 = new Cesium.Cartesian3(-0.004953478914091, -0.000479681664876, 0.008508150106928);
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var coefficients = [L00, L1_1, L10, L11, L2_2, L2_1, L20, L21, L22];
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var height = 0.0;
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var hpr = new Cesium.HeadingPitchRoll(0.0, 0.0, 0.0);
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var origin = Cesium.Cartesian3.fromDegrees(-123.0744619, 44.0503706, height);
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var modelMatrix = Cesium.Transforms.headingPitchRollToFixedFrame(origin, hpr);
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var model = viewer.scene.primitives.add(Cesium.Model.fromGltf({
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url : modelURL,
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modelMatrix : modelMatrix,
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minimumPixelSize : 128
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}));
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model.readyPromise.then(function(model) {
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var camera = viewer.camera;
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// Zoom to model
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var controller = viewer.scene.screenSpaceCameraController;
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var r = 2.0 * Math.max(model.boundingSphere.radius, camera.frustum.near);
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controller.minimumZoomDistance = r * 0.5;
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var center = Cesium.Matrix4.multiplyByPoint(model.modelMatrix, model.boundingSphere.center, new Cesium.Cartesian3());
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var heading = Cesium.Math.toRadians(230.0);
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var pitch = Cesium.Math.toRadians(-20.0);
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camera.lookAt(center, new Cesium.HeadingPitchRange(heading, pitch, r * 2.0));
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camera.lookAtTransform(Cesium.Matrix4.IDENTITY);
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model.sphericalHarmonicCoefficients = coefficients;
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model.specularEnvironmentMaps = environmentMapURL;
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// The viewModel tracks the state of our mini application.
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var viewModel = {
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luminanceAtZenith : model.luminanceAtZenith
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};
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// Convert the viewModel members into knockout observables.
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Cesium.knockout.track(viewModel);
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// Bind the viewModel to the DOM elements of the UI that call for it.
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var toolbar = document.getElementById('toolbar');
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Cesium.knockout.applyBindings(viewModel, toolbar);
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function subscribeParameter(name) {
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Cesium.knockout.getObservable(viewModel, name).subscribe(
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function(newValue) {
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model[name] = newValue;
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}
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);
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}
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subscribeParameter('luminanceAtZenith');
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Sandcastle.addToggleButton('Use procedural image', false, function(checked) {
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if (!checked) {
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model.sphericalHarmonicCoefficients = coefficients;
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model.specularEnvironmentMaps = environmentMapURL;
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} else {
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model.sphericalHarmonicCoefficients = undefined;
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model.specularEnvironmentMaps = undefined;
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}
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});
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}).otherwise(function(error){
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window.alert(error);
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});
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//Sandcastle_End
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Sandcastle.finishedLoading();
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}
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if (typeof Cesium !== 'undefined') {
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startup(Cesium);
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} else if (typeof require === 'function') {
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require(['Cesium'], startup);
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}
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</script>
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</body>
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</html>
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