Compare commits
5 Commits
| Author | SHA1 | Date | |
|---|---|---|---|
| 5351ec84cb | |||
| 7611192683 | |||
| c419dca58f | |||
| 9e5ea8098c | |||
| dc2f826688 |
235
index.html
235
index.html
@ -19,122 +19,137 @@
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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, inPointInd, ...inOthersInd) =>
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{
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renderer.render(scene, camera);
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dirty = false;
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let sum = [0, 0, 0];
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for(let i=0; i<inOthersInd.length; i++)
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{
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let otherInd = inOthersInd[i]*3;
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sum[0] += inArray[otherInd+0];
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sum[1] += inArray[otherInd+1];
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sum[2] += inArray[otherInd+2];
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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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let pointX = inPointInd*3 + 0;
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let pointY = inPointInd*3 + 1;
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let pointZ = inPointInd*3 + 2;
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let reducer = inOthersInd.length;
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let limit = (inCenter, inPoint) =>
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{
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var limit;
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limit = inCenter-0.49;
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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 + 0.49;
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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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inArray[pointX] = limit(Math.round(inArray[pointX]), sum[0]/reducer);
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inArray[pointY] = limit(Math.round(inArray[pointY]), sum[1]/reducer);
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inArray[pointZ] = limit(Math.round(inArray[pointZ]), sum[2]/reducer);
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};
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let smooth = (inArray, inTimes) =>
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{
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let count = inArray.length/3;
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for(let t=0; t<inTimes; t++)
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{
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for(let i=0; i<count; i++)
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{
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if(i==0)
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{
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average(inArray, i, count-1, i+1);
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}
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else
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{
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if(i==count-1)
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{
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average(inArray, i, i-1, 0);
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}
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else
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{
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average(inArray, i, i-1, i+1);
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}
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}
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}
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}
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}
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/*
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let testPoints =
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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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];
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console.log(testPoints);
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average(testPoints, 1, 0, 2);
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console.log(testPoints);
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*/
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let path = (inPoints, inSmoothing, inColor) =>
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{
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let clone = [...inPoints];
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smooth(clone, inSmoothing);
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const geometry = new THREE.BufferGeometry();
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geometry.setAttribute('position', new THREE.Float32BufferAttribute( clone, 3 ));
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const materialLine = new THREE.LineBasicMaterial( { color: inColor, linewidth: 3 } );
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const materialPoint = new THREE.PointsMaterial( { color:inColor, size: 0.05 } );
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const output = new THREE.Group();
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output.add( new THREE.Line( geometry, materialLine ) );
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output.add( new THREE.Points( geometry, materialPoint ) );
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return output;
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}
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const points =
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[
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4, 0, 0,
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3, 0, 0,
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2, 0, 0,
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1, 0, 0,
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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, 2, 0,
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3, 2, 0,
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4, 2, 0,
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4, 3, 0,
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//
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5, 3, 0,
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5, 2, 0,
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5, 1, 0,
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5, 0, 0,
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];
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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(path(points, 0, 0xFF0000));
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inScene.add(path(points, 10, 0x00ff00));
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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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Block a user