2021-07-05 20:51:08 -04:00
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<!doctype html>
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<html>
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<head>
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<style>
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html, body
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{
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margin:0;
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}
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canvas
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{
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position:absolute;
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top:0;
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left:0;
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display:block;
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width:100%;
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height:100%;
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}
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</style>
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</head>
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<body>
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<canvas></canvas>
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2021-07-10 11:27:44 -04:00
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<script type="module">
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import { Scene, THREE } from './scene.js';
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import { Region } from "./region.js";
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let surfaceTest = () =>
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{
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let average = (inArray, inPointInd, inOthersIndArray) =>
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{
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let sum = [0, 0, 0];
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for(let i=0; i<inOthersIndArray.length; i++)
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{
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let otherInd = inOthersIndArray[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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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 = inOthersIndArray.length;
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let limit = (inCenter, inPoint) =>
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{
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var size = 0.49999;
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var limit;
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limit = inCenter - size;
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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 + size;
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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 = (inVertsArray, inNeighborsArray, inTimes) =>
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{
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let count = inVertsArray.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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average(inVertsArray, i, inNeighborsArray[i]);
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}
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}
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return inVertsArray;
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}
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let voxels = [];
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voxels[Region.I(0, 0, 0)] = true;
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voxels[Region.I(1, 0, 0)] = true;
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voxels[Region.I(2, 0, 0)] = true;
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voxels[Region.I(0, 1, 0)] = true;
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voxels[Region.I(1, 1, 0)] = true;
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voxels[Region.I(0, 2, 0)] = true;
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voxels[Region.I(0, 0, 1)] = true;
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voxels[Region.I(1, 0, 1)] = true;
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voxels[Region.I(2, 0, 1)] = true;
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voxels[Region.I(0, 1, 1)] = true;
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voxels[Region.I(1, 1, 1)] = true;
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voxels[Region.I(0, 2, 1)] = true;
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voxels[Region.I(0, 0, 2)] = true;
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voxels[Region.I(1, 0, 2)] = true;
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voxels[Region.I(2, 0, 2)] = true;
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voxels[Region.I(0, 1, 2)] = true;
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voxels[Region.I(1, 1, 2)] = true;
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voxels[Region.I(0, 2, 2)] = true;
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voxels[Region.I(0, 0, 3)] = true;
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voxels[Region.I(1, 0, 3)] = true;
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voxels[Region.I(2, 0, 3)] = true;
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voxels[Region.I(0, 1, 3)] = true;
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voxels[Region.I(1, 1, 3)] = true;
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voxels[Region.I(0, 2, 3)] = true;
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let surface = Region.Surface(voxels);
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let vertsCube = new Float32Array(surface.vertices.flat());
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let surfaceCubeGeometry = new THREE.BufferGeometry();
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surfaceCubeGeometry.setAttribute('position', new THREE.BufferAttribute(vertsCube, 3) );
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surfaceCubeGeometry.setIndex(surface.triPointVert);
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surfaceCubeGeometry.computeVertexNormals(true);
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let surfaceCubeObject = new THREE.Mesh(
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surfaceCubeGeometry,
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new THREE.MeshBasicMaterial({color:0xaa9900, wireframe:true, side:THREE.DoubleSide, shading:THREE.FlatShading})
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);
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let vertsSmooth = new Float32Array(smooth(surface.vertices.flat(), surface.vertPointNeighbors, 5));
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let surfaceSmoothGeometry = new THREE.BufferGeometry();
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surfaceSmoothGeometry.setAttribute('position', new THREE.BufferAttribute(vertsSmooth, 3) );
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surfaceSmoothGeometry.setIndex(surface.triPointVert);
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surfaceSmoothGeometry.computeVertexNormals(true);
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let surfaceSmoothObject = new THREE.Mesh(
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surfaceSmoothGeometry,
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new THREE.MeshPhongMaterial({color:0xffffff, side:THREE.DoubleSide, shading:THREE.FlatShading})
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);
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return {
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DOM:"canvas",
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Init(inScene)
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{
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let light = new THREE.PointLight(0xffffff, 1, 100)
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light.position.set(0, 2, -4);
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inScene.add(light)
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inScene.add(surfaceCubeObject);
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inScene.add(surfaceSmoothObject);
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//inScene.add(new THREE.GridHelper(10, 10));
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//inScene.add(new THREE.AxesHelper( 5 ));
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},
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Update(inScene, inDelta){}
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};
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}
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Scene(surfaceTest());
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</script>
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2021-07-06 16:50:26 -04:00
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2021-07-05 20:51:08 -04:00
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</body>
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</html>
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