SethTrowbridge/voxel
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

only neighbors

Browse Source
This commit is contained in:
TreetopFlyer 2021-07-07 15:12:39 -04:00
parent 7611192683
commit 72e33a6256
2 changed files with 57 additions and 37 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
index.html
View File

@ -25,23 +25,19 @@
let average = (inArray, inPointInd, ...inOthersInd) =>
{
let pointX = inPointInd*3 + 0;
let pointY = inPointInd*3 + 1;
let pointZ = inPointInd*3 + 2;
let centerX = Math.round(inArray[pointX]);
let centerY = Math.round(inArray[pointY]);
let centerZ = Math.round(inArray[pointZ]);
let sum = [0, 0, 0];
for(let i=0; i<inOthersInd.length; i++)
{
let otherInd = inOthersInd[i]*3;
inArray[pointX] += inArray[otherInd+0];
inArray[pointY] += inArray[otherInd+1];
inArray[pointZ] += inArray[otherInd+2];
sum[0] += inArray[otherInd+0];
sum[1] += inArray[otherInd+1];
sum[2] += inArray[otherInd+2];
}
let reducer = inOthersInd.length+1;
let pointX = inPointInd*3 + 0;
let pointY = inPointInd*3 + 1;
let pointZ = inPointInd*3 + 2;
let reducer = inOthersInd.length;
let limit = (inCenter, inPoint) =>
{
var limit;
@ -58,10 +54,9 @@
return inPoint;
}
inArray[pointX] = limit(centerX, inArray[pointX]/reducer);
inArray[pointY] = limit(centerY, inArray[pointY]/reducer);
inArray[pointZ] = limit(centerZ, inArray[pointZ]/reducer);
inArray[pointX] = limit(Math.round(inArray[pointX]), sum[0]/reducer);
inArray[pointY] = limit(Math.round(inArray[pointY]), sum[1]/reducer);
inArray[pointZ] = limit(Math.round(inArray[pointZ]), sum[2]/reducer);
};
let smooth = (inArray, inTimes) =>
{
@ -146,7 +141,7 @@
Init(inScene)
{
inScene.add(path(points, 0, 0xFF0000));
inScene.add(path(points, 50, 0x00ff00));
inScene.add(path(points, 10, 0x00ff00));
},
Update(scene, delta)
{

65
region.js
View File

@ -20,7 +20,6 @@ export const Kernel =
[ 0, 0, 1],
[ 0, 0, -1]
],
Loop(inList, inVector, inHandler)
{
for(let i=0; i<inList.length; i++)
@ -43,11 +42,11 @@ export const Region =
Surface:[]
};
},
CoordsToIndex(inX, inY, inZ)
I(inX, inY, inZ)
{
return inX + inY*16 + inZ*256;
},
IndexToCoords(inI)
XYZ(inI)
{
let zWhole = Math.floor(inI / 256);
let zPart = inI % 256;
@ -55,27 +54,53 @@ export const Region =
let yPart = zPart % 16;
return [yPart, yWhole, zWhole];
},
Update(inRegion)
Update(inVoxels)
{
inRegion.Filled = [];
inRegion.Surface = [];
var i;
for(i=0; i<inRegion.Voxels.length; i++)
function Face(a, b, c, d)
{
if(inRegion.Voxels[i])
Edge(a, b);
Edge(b, c);
Edge(c, d);
Edge(d, a);
}
function Edge(a, b)
{
}
var i;
var BA, BU, BC, BR, TA, TU, TC, TR, CL, CD, CB;
for(i=0; i<inVoxels.length; i++)
{
if(inVoxels[i])
{
let coords = Region.IndexToCoords(i);
Kernel.Loop(Kernel.Corners, coords, (inX, inY, inZ)=>
{
let offsetIndex = Region.CoordsToIndex(inX, inY, inZ);
if(!inRegion.Voxels[offsetIndex])
{
inRegion.Surface.push(i);
return true;
}
});
let [x, y, z] = Region.IndexToCoords(i);
// bottom: at, "up", corner, right
BA = i;
BU = Region.I(x+1, y, z);
BC = Region.I(x+1, y+1, z);
BR = Region.I(x, y+1, z);
// top: at, "up" corner, right
TA = Region.I(x, y, z+1);
TU = Region.I(x+1, y, z+1);
TC = Region.I(x+1, y+1, z+1);
TR = Region.I(x, y+1, z+1);
// check: left, "down", below
CL = Region.I(x-1, y, z);
CD = Region.I(x, y-1, z);
CB = Region.I(x, y, z-1);
if(!inVoxels[BU]){ Face(BU, BC, TC, TU); }
if(!inVoxels[BR]){ Face(BC, BR, TR, TC); }
if(!inVoxels[TA]){ Face(TA, TU, TC, TR); }
if(!inVoxels[CL]){ Face(BA, BU, TU, TA); }
if(!inVoxels[CD]){ Face(BR, BA, TA, TR); }
if(!inVoxels[CB]){ Face(BA, BU, BC, BR); }
}
}
console.log("looped over", i);
}
};