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9e5ea8098c
| Author | SHA1 | Date | |
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| 9e5ea8098c | |||
| dc2f826688 |
201
index.html
201
index.html
@ -19,122 +19,103 @@
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</head>
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<body>
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<canvas></canvas>
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<script type="module">
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import * as T from 'http://esm.sh/three';
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import { OrbitControls } from 'http://esm.sh/three/examples/jsm/controls/OrbitControls.js';
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import { Region, Kernel } from "./region.js";
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import { Scene, THREE } from './scene.js';
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const renderer = new T.WebGLRenderer({canvas:document.querySelector("canvas")});
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const scene = new T.Scene();
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const camera = new T.PerspectiveCamera(80, 2, 0.1, 10);
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const light = new T.DirectionalLight(0xFFFFFF, 1);
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const geometry = new T.BoxGeometry(0.8, 0.8, 0.8);
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const shader = new T.MeshPhongMaterial({color:0xFFCC00});
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const shaderBlue = new T.MeshPhongMaterial({color:0x0033FF});
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const object = new T.Mesh(geometry, shader);
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const controls = new OrbitControls(camera, renderer.domElement);
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controls.update();
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scene.add(light);
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scene.add(object);
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scene.add(new T.GridHelper(10, 10));
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const geoBuff = new T.BufferGeometry();
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geoBuff.setAttribute("position", new T.BufferAttribute(new Float32Array(
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[
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0, 0, 0,
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1, 0, 0,
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1, 1, 0,
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0, 1, 0,
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2, 0, 1,
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2, 1, 1
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]
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), 3));
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geoBuff.setIndex(
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[
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0, 1, 2,
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2, 3, 0,
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1, 4, 5,
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5, 2, 1
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]
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);
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geoBuff.computeVertexNormals();
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const geoObj = new T.Mesh(geoBuff, shader);
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shader.shading = T.FlatShading;
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scene.add(geoObj);
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/*
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let r = Region.Create();
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let filler = (x, y, z) =>
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{
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r.Voxels[Region.CoordsToIndex(x, y, z)] = true;
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};
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filler(1, 1, 1);
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Kernel.Loop(Kernel.Corners, [1, 1, 1], filler);
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Kernel.Loop(Kernel.Cardinal, [1, 1, 1], filler);
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Region.Update(r);
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r.Filled.forEach((inIndexMap) =>
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{
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let coords = Region.IndexToCoords(inIndexMap);
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let cube = new T.Mesh(geometry, shader);
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cube.position.set(...coords);
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scene.add(cube);
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});
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r.Surface.forEach((inIndexMap) =>
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{
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let coords = Region.IndexToCoords(inIndexMap);
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let cube = new T.Mesh(geometry, shaderBlue);
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cube.position.set(...coords);
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scene.add(cube);
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});
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*/
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light.position.set(-1, 2, 4);
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camera.position.set(0, 0, 2);
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let dirty = false;
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const update = inTime =>
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{
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let timeNew = new Date();
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let timeDelta = timeNew - inTime;
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let delta = timeDelta * 0.001;
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object.rotation.x += delta;
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controls.update();
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dirty = true;
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setTimeout(()=>update(timeNew), 100);
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}
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const render = inTime =>
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{
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if(dirty)
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let average = (inArray, inCenterInd, ...inPointsInd) =>
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{
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renderer.render(scene, camera);
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dirty = false;
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let output = [0, 0, 0];
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let centerInd = inCenterInd*3;
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for(let i=0; i<inPointsInd.length; i++)
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{
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let pointInd = inPointsInd[i]*3;
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output[0] += inArray[pointInd+0];
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output[1] += inArray[pointInd+1];
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output[2] += inArray[pointInd+2];
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}
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let scalar = inPointsInd.length;
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output[0] /= scalar;
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output[1] /= scalar;
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output[2] /= scalar;
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let limit = (inPoint, inCenter) =>
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{
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let limit = inCenter-0.5;
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if(inPoint < limit)
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{
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return limit;
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}
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limit = inCenter+0.5;
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if(inPoint > limit)
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{
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return limit;
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}
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return inPoint;
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}
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output[0] = limit(output[0], inArray[centerInd+0]);
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output[1] = limit(output[1], inArray[centerInd+1]);
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output[2] = limit(output[2], inArray[centerInd+2]);
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return output;
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};
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let smooth = (inArray) =>
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{
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let output = [inArray[0], inArray[1], inArray[2] ];
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for(let i=1; i < (inArray.length/3)-1; i++)
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{
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output.push( ...average(inArray, i, i-1, i, i+1) );
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}
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output.push(inArray[inArray.length-3], inArray[inArray.length-2], inArray[inArray.length-1]);
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return output;
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}
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let path = (inPoints, inColor) =>
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{
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const geometry = new THREE.BufferGeometry();
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geometry.setAttribute('position', new THREE.Float32BufferAttribute( inPoints, 3 ));
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const material = new THREE.LineBasicMaterial( { color: inColor, linewidth: 3 } );
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return new THREE.Line( geometry, material );
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}
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requestAnimationFrame(render);
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}
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const resize = () =>
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{
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let canvas = renderer.domElement;
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camera.aspect = canvas.clientWidth / canvas.clientHeight;
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camera.updateProjectionMatrix();
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renderer.setSize(canvas.clientWidth, canvas.clientHeight, false);
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};
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const points =
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[
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0, 0, 0,
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0, 1, 0,
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1, 1, 0,
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2, 1, 0,
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2, 0, 0,
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3, 0, 0,
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4, 0, 0,
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4, 1, 0
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];
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console.log( smooth(points) );
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let path0 = path(points, 0xFF0000);
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let path1 = path(smooth(points), 0x009900);
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let path2 = path(smooth(smooth(points)), 0x00AA00);
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let path3 = path(smooth(smooth(smooth(points))), 0x00FF00);
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Scene(
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{
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DOM:"canvas",
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Init(inScene)
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{
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inScene.add( path0 );
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inScene.add( path1 );
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inScene.add( path2 );
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inScene.add( path3 );
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},
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Update(scene, delta)
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{
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}
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}
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);
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window.addEventListener("resize", resize);
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resize();
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render(0);
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update(new Date());
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</script>
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</body>
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57
scene.js
Normal file
57
scene.js
Normal file
@ -0,0 +1,57 @@
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import * as T from 'http://esm.sh/three';
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import { OrbitControls } from 'http://esm.sh/three/examples/jsm/controls/OrbitControls.js';
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export { T as THREE };
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export function Scene(inSettings)
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{
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const renderer = new T.WebGLRenderer({canvas:document.querySelector(inSettings.DOM)});
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const scene = new T.Scene();
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const camera = new T.PerspectiveCamera(80, 2, 0.1, 10);
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const light = new T.DirectionalLight(0xFFFFFF, 1);
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const controls = new OrbitControls(camera, renderer.domElement);
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let dirty = false;
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const update = inTime =>
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{
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let timeNew = new Date();
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let timeDelta = timeNew - inTime;
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let delta = timeDelta * 0.001;
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inSettings.Update(scene, delta);
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controls.update();
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dirty = true;
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setTimeout(()=>update(timeNew), 50);
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}
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const render = inTime =>
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{
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if(dirty)
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{
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renderer.render(scene, camera);
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dirty = false;
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}
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requestAnimationFrame(render);
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}
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const resize = () =>
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{
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let canvas = renderer.domElement;
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camera.aspect = canvas.clientWidth / canvas.clientHeight;
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camera.updateProjectionMatrix();
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renderer.setSize(canvas.clientWidth, canvas.clientHeight, false);
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};
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scene.add(light);
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scene.add(new T.GridHelper(10, 10));
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light.position.set(-1, 2, 4);
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camera.position.set(0, 0, 2);
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controls.update();
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inSettings.Init(scene);
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window.addEventListener("resize", resize);
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resize();
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render(0);
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update(new Date());
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};
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