Add 3d xbox

templates/template_index.html

@@ -13,6 +13,17 @@
   margin: -5rem 0 0; /* negative fixed header height */
 }
 
+#xbox-scene {
+  position: relative;
+  padding-bottom: 100%;
+  border: none;
+}
+
+#xbox-scene canvas {
+  position: absolute;
+  max-width: 100%;
+  height: auto;
+}
 
 #logo-canvas {
   display: block;
@@ -146,9 +157,9 @@
   <div class="container">
   <div class="row mt-5">
     <div class="col-md-6 mt-4 pb-5 pb-md-0 text-center">
-      <img src="xbox_logo.png" id="xbox-logo" class="img-fluid" width=450 />
+      <div id="xbox-scene"></div>
     </div>
-    <div class="col-md-6">
+    <div class="col-md-6 my-auto">
       <h1 class="display-3">
         <canvas id="logo-canvas" class="gl-logo"></canvas>
         <img id="logo-fallback" alt="xemu logo" src="/logo-green-jumbotron.svg" style="height: 1.03em;">
@@ -321,20 +332,41 @@ if (platform != undefined) {
 }
 </script>
 
-<script type="text/javascript" src="three.min.js"></script>
-<script type="text/javascript">
+
+<script type="importmap">
+  {
+    "imports": {
+      "three": "./three/three.module.js",
+      "three/addons/": "./three/"
+    }
+  }
+</script>
+
+<script type="module">
+import * as THREE from 'three';
+import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js';
+import { DRACOLoader } from 'three/addons/loaders/DRACOLoader.js';
+import { ArcballControls } from 'three/addons/controls/ArcballControls.js';
+
+const gltf_loader = new GLTFLoader();
+const draco_loader = new DRACOLoader();
+draco_loader.setDecoderPath( 'three/loaders/' );
+draco_loader.setDecoderConfig( { type: 'js' } );
+gltf_loader.setDRACOLoader( draco_loader );
+
 var canvas = document.querySelector('#bg-scene');
 var scene = new THREE.Scene();
 var camera = new THREE.PerspectiveCamera( 74.5, canvas.offsetWidth/canvas.offsetHeight, 0.1, 1000 );
 scene.fog = new THREE.Fog('black', 0.2, 2.45);
 scene.background = new THREE.Color('black');
 
-var renderer = new THREE.WebGLRenderer();
+var renderer = new THREE.WebGLRenderer({ antialias: true });
 renderer.setSize( canvas.offsetWidth, canvas.offsetHeight );
 renderer.setPixelRatio( window.devicePixelRatio );
 canvas.appendChild( renderer.domElement );
 
 const texture = new THREE.TextureLoader().load("mesh_pattern.svg");
+texture.colorSpace = THREE.SRGBColorSpace;
 texture.wrapS = THREE.RepeatWrapping;
 texture.wrapT = THREE.RepeatWrapping;
 texture.repeat.set( 50, -25 );
@@ -343,6 +375,7 @@ const geometry = new THREE.SphereGeometry( 1, 50, 25 );
 var material = new THREE.MeshBasicMaterial( { map: texture, side: THREE.BackSide } );
 var sphere = new THREE.Mesh( geometry, material );
 scene.add( sphere );
+
 camera.position.z = 0.65;
 camera.position.x = 0.12;
 
@@ -350,7 +383,8 @@ var clock = new THREE.Clock();
 var render = function () {
   requestAnimationFrame( render );
   var t = clock.getElapsedTime();
-  sphere.rotation.y = (Math.PI/10) * Math.sin(t * Math.PI / 50);
+  var s = Math.sin(t * Math.PI / 50);
+  sphere.rotation.y = (Math.PI/10) * s;
   renderer.render(scene, camera);
 };
 render();
@@ -359,12 +393,123 @@ window.addEventListener('resize', function(){
     camera.updateProjectionMatrix();
     renderer.setSize(canvas.offsetWidth, canvas.offsetHeight);
   }, false);
+
+var xbox_canvas = document.querySelector('#xbox-scene');
+var xbox_scene = new THREE.Scene();
+// xbox_scene.background = new THREE.Color('black');
+
+var xbox_camera = new THREE.PerspectiveCamera( 42.5, xbox_canvas.offsetWidth/xbox_canvas.offsetHeight, 0.1, 1000 );
+
+var xbox_renderer = new THREE.WebGLRenderer({ antialias: true, alpha: true });
+xbox_renderer.setSize( xbox_canvas.offsetWidth, xbox_canvas.offsetHeight );
+xbox_renderer.setPixelRatio( window.devicePixelRatio );
+xbox_canvas.appendChild( xbox_renderer.domElement );
+
+var xbox = null;
+var xbox_scale = 1;
+var xbox_sphere_radius = 0.23 * xbox_scale;
+var xbox_base_color = new THREE.Color(0xA0B020);
+var xbox_bright_color = new THREE.Color(0xD4E830);
+var xbox_material = new THREE.MeshStandardMaterial( {
+  color: xbox_base_color,
+  transparent: true,
+  opacity: 0.25,
+  depthTest: false,
+  roughness: 0,
+});
+
+gltf_loader.load('xbox.glb', function ( gltf ) {
+  xbox = gltf.scene;
+  xbox.renderOrder = 10;
+  xbox.scale.set(xbox_scale, xbox_scale, xbox_scale);
+  xbox.position.set(0,0.05,0);
+  xbox.rotation.x = 0.14 * Math.PI;
+  xbox.rotation.z = -0.02 * Math.PI;
+  var order = 0;
+  xbox.traverse((o) => {
+    if (o.isMesh) {
+      o.material = xbox_material;
+      o.renderOrder = order;
+      order += 1;
+    }
+  });
+  xbox_scene.add(xbox);
+});
+
+const xbox_orb_geometry = new THREE.SphereGeometry( xbox_sphere_radius, 50, 25 );
+var xbox_orb_material = new THREE.ShaderMaterial( {
+      // https://jsfiddle.net/8n36c47p/4/
+      vertexShader: `
+        varying vec3 vPositionW;
+        varying vec3 vNormalW;
+        void main() {
+         vPositionW = vec3( vec4( position, 1.0 ) * modelMatrix);
+         vNormalW = normalize( vec3( vec4( normal, 0.0 ) * modelMatrix ) );
+         gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );
+        }`,
+      fragmentShader: `
+        varying vec3 vPositionW;
+        varying vec3 vNormalW;
+        void main() {
+         vec3 color = vec3(0.5, 1.0, 0.3);
+         vec3 base = vec3(0.1, 0.6, 0.05);
+         vec3 viewDirectionW = normalize(cameraPosition - vPositionW);
+         float f = clamp(pow(1.0 - dot(viewDirectionW, vNormalW), 1.3), 0.0, 1.);
+         gl_FragColor = vec4(mix(base, color, f), f * 0.5);
+        }`,
+      transparent: true,
+    });
+
+var xbox_orb = new THREE.Mesh( xbox_orb_geometry, xbox_orb_material );
+xbox_orb.renderOrder = 0;
+xbox_scene.add( xbox_orb );
+
+var light_color = new THREE.Color(1,1,1);
+
+const ambient_light = new THREE.AmbientLight(light_color, 2);
+xbox_scene.add(ambient_light);
+
+var point_light = new THREE.PointLight(light_color, 5);
+point_light.position.set(-1, -0.5, 0.25);
+xbox_scene.add(point_light);
+
+xbox_camera.position.z = 0.65;
+
+var clock = new THREE.Clock();
+var xbox_render = function () {
+  requestAnimationFrame( xbox_render );
+  var t = clock.getElapsedTime();
+  var s = Math.sin(t * Math.PI / 50);
+  if (xbox != null) {
+    xbox.rotation.y = Math.PI * (0.1 + s / 10);
+    var new_color = new THREE.Color(xbox_base_color);
+    new_color.lerp(xbox_bright_color, Math.abs(Math.sin(t * Math.PI / 4 )));
+    xbox_material.color.set(new_color);
+  }
+  xbox_renderer.render(xbox_scene, xbox_camera);
+};
+xbox_render();
+
+const controls = new ArcballControls( xbox_camera, xbox_renderer.domElement, xbox_scene );
+
+controls.addEventListener( 'change', function () {
+  xbox_renderer.render( xbox_scene, xbox_camera );
+} );
+
+controls.update();
+
+window.addEventListener('resize', function(){
+    xbox_camera.aspect = xbox_canvas.offsetWidth/xbox_canvas.offsetHeight;
+    xbox_camera.updateProjectionMatrix();
+    xbox_renderer.setSize(xbox_canvas.offsetWidth, xbox_canvas.offsetHeight);
+  }, false);
 </script>
+
 <script type="text/javascript" src="gl_logo.js"></script>
 <script type="text/javascript">
 function updateNavbarTransparency() {
   var nav = $(".navbar");
-  var t = $(document).scrollTop() < $("#xbox-logo").offset().top - nav.height();
+  var t = $(document).scrollTop() < $("#xbox-scene").offset().top - nav.height();
   nav.toggleClass('navbar-transparent', t);
 }
 $(document).scroll(updateNavbarTransparency);