SethTrowbridge/voxel
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direct modification

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TreetopFlyer 2021-07-07 15:01:21 -04:00
parent c419dca58f
commit 7611192683
1 changed files with 48 additions and 48 deletions
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96
index.html
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@ -23,86 +23,90 @@
<script type="module"> <script type="module">
import { Scene, THREE } from './scene.js'; import { Scene, THREE } from './scene.js';
let average = (inCenter, inArray, ...inPointsInd) => let average = (inArray, inPointInd, ...inOthersInd) =>
{ {
let output = [0, 0, 0]; let pointX = inPointInd*3 + 0;
let pointY = inPointInd*3 + 1;
let pointZ = inPointInd*3 + 2;
for(let i=0; i<inPointsInd.length; i++) let centerX = Math.round(inArray[pointX]);
let centerY = Math.round(inArray[pointY]);
let centerZ = Math.round(inArray[pointZ]);
for(let i=0; i<inOthersInd.length; i++)
{ {
let pointInd = inPointsInd[i]*3; let otherInd = inOthersInd[i]*3;
output[0] += inArray[pointInd+0]; inArray[pointX] += inArray[otherInd+0];
output[1] += inArray[pointInd+1]; inArray[pointY] += inArray[otherInd+1];
output[2] += inArray[pointInd+2]; inArray[pointZ] += inArray[otherInd+2];
} }
let reducer = inPointsInd.length; let reducer = inOthersInd.length+1;
output[0] /= reducer;
output[1] /= reducer;
output[2] /= reducer;
let limit = (inCenter, inPoint) => let limit = (inCenter, inPoint) =>
{ {
var limit; var limit;
limit = inCenter-0.49;
limit = inCenter-0.5; if(inPoint <= limit)
if(inPoint < limit){ return limit; } {
return limit;
limit = inCenter+0.5; }
if(inPoint > limit){ return limit; } limit = inCenter + 0.49;
if(inPoint >= limit)
{
return limit;
}
return inPoint; return inPoint;
} }
var limited = []; inArray[pointX] = limit(centerX, inArray[pointX]/reducer);
limited[0] = limit(inCenter[0], output[0]); inArray[pointY] = limit(centerY, inArray[pointY]/reducer);
limited[1] = limit(inCenter[1], output[1]); inArray[pointZ] = limit(centerZ, inArray[pointZ]/reducer);
limited[2] = limit(inCenter[2], output[2]);
//console.log(`<${output[0].toFixed(2)}, ${output[1].toFixed(2)}> limited to <${limited[0].toFixed(2)}, ${limited[1].toFixed(2)}> by <${inCenter[0].toFixed(2)}, ${inCenter[1].toFixed(2)}>`)
output[0] = limited[0];
output[1] = limited[1];
output[2] = limited[2];
return output;
}; };
let smooth = (inArray, inTimes) => let smooth = (inArray, inTimes) =>
{ {
let output = [...inArray]; let count = inArray.length/3;
let count = output.length/3;
for(let t=0; t<inTimes; t++) for(let t=0; t<inTimes; t++)
{ {
for(let i=0; i<count; i++) for(let i=0; i<count; i++)
{ {
var av;
var center = [inArray[i*3 + 0], inArray[i*3 + 1], inArray[i*3 + 2]]
if(i==0) if(i==0)
{ {
av = average(center, output, count-1, i, i+1); average(inArray, i, count-1, i+1);
} }
else else
{ {
if(i==count-1) if(i==count-1)
{ {
av = average(center, output, i-1, i, 0); average(inArray, i, i-1, 0);
} }
else else
{ {
av = average(center, output, i-1, i, i+1); average(inArray, i, i-1, i+1);
} }
} }
output[i*3+0] = av[0];
output[i*3+1] = av[1];
output[i*3+2] = av[2];
} }
} }
return output;
} }
/*
let testPoints =
[
0, 0, 0,
0, 1, 0,
1, 1, 0
];
console.log(testPoints);
average(testPoints, 1, 0, 2);
console.log(testPoints);
*/
let path = (inPoints, inSmoothing, inColor) => let path = (inPoints, inSmoothing, inColor) =>
{ {
let clone = [...inPoints];
smooth(clone, inSmoothing);
const geometry = new THREE.BufferGeometry(); const geometry = new THREE.BufferGeometry();
geometry.setAttribute('position', new THREE.Float32BufferAttribute( smooth(inPoints, inSmoothing), 3 )); geometry.setAttribute('position', new THREE.Float32BufferAttribute( clone, 3 ));
const materialLine = new THREE.LineBasicMaterial( { color: inColor, linewidth: 3 } ); const materialLine = new THREE.LineBasicMaterial( { color: inColor, linewidth: 3 } );
const materialPoint = new THREE.PointsMaterial( { color:inColor, size: 0.05 } ); const materialPoint = new THREE.PointsMaterial( { color:inColor, size: 0.05 } );
const output = new THREE.Group(); const output = new THREE.Group();
@ -142,11 +146,7 @@
Init(inScene) Init(inScene)
{ {
inScene.add(path(points, 0, 0xFF0000)); inScene.add(path(points, 0, 0xFF0000));
inScene.add(path(points, 1, 0x003300)); inScene.add(path(points, 50, 0x00ff00));
inScene.add(path(points, 3, 0x005500));
inScene.add(path(points, 5, 0x007700));
inScene.add(path(points, 7, 0x009900));
inScene.add(path(points, 100, 0x00bb00));
}, },
Update(scene, delta) Update(scene, delta)
{ {