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orientation groups started

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TreetopFlyer 2021-07-12 17:41:40 -04:00
parent b630e26cfd
commit bded36b307
2 changed files with 35 additions and 23 deletions
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20
index.html
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@ -43,7 +43,7 @@ let surfaceTest = () =>
if(absDeltaY > max){ max = absDeltaY; }
if(absDeltaZ > max){ max = absDeltaZ; }
let lerp = 0.49/max;
let lerp = 0.45/max;
if(lerp <= 1)
{
@ -58,7 +58,7 @@ let surfaceTest = () =>
return [ax, ay, az];
}
}
let average = (inArray, inPointInd, inOthersIndArray) =>
let average = (inArray, inPointInd, inOthersIndArray, inOriginals) =>
{
let sum = [0, 0, 0];
for(let i=0; i<inOthersIndArray.length; i++)
@ -74,7 +74,7 @@ let surfaceTest = () =>
let pointZ = inPointInd*3 + 2;
let reducer = inOthersIndArray.length;
let limited = limit(inArray[pointX], inArray[pointY], inArray[pointZ], sum[0]/reducer, sum[1]/reducer, sum[2]/reducer);
let limited = limit(inOriginals[pointX], inOriginals[pointY], inOriginals[pointZ], sum[0]/reducer, sum[1]/reducer, sum[2]/reducer);
inArray[pointX] = limited[0];
inArray[pointY] = limited[1];
@ -83,11 +83,12 @@ let surfaceTest = () =>
let smooth = (inVertsArray, inNeighborsArray, inTimes) =>
{
let count = inVertsArray.length/3;
let originals = [...inVertsArray];
for(let t=0; t<inTimes; t++)
{
for(let i=0; i<count; i++)
{
average(inVertsArray, i, inNeighborsArray[i]);
average(inVertsArray, i, inNeighborsArray[i][0], originals);
}
}
return inVertsArray;
@ -96,10 +97,12 @@ let surfaceTest = () =>
let voxels = [];
voxels[Region.I(0, 0, 0)] = true;
voxels[Region.I(1, 0, 0)] = true;
/*
voxels[Region.I(2, 0, 0)] = true;
voxels[Region.I(0, 1, 0)] = true;
voxels[Region.I(1, 1, 0)] = true;
voxels[Region.I(0, 2, 0)] = true;
*/
/*
voxels[Region.I(0, 0, 1)] = true;
@ -121,8 +124,11 @@ let surfaceTest = () =>
voxels[Region.I(2, 0, 3)] = true;
voxels[Region.I(0, 1, 3)] = true;
voxels[Region.I(1, 1, 3)] = true;
voxels[Region.I(2, 1, 3)] = true;
voxels[Region.I(0, 2, 3)] = true;
*/
voxels[Region.I(1, 2, 3)] = true;
voxels[Region.I(2, 2, 3)] = true;
*/
let surface = Region.Surface(voxels);
@ -137,14 +143,14 @@ let surfaceTest = () =>
);
let vertsSmooth = new Float32Array(smooth(surface.vertices.flat(), surface.vertPointNeighbors, 10));
let vertsSmooth = new Float32Array(smooth(surface.vertices.flat(), surface.vertPointNeighbors, 5));
let surfaceSmoothGeometry = new THREE.BufferGeometry();
surfaceSmoothGeometry.setAttribute('position', new THREE.BufferAttribute(vertsSmooth, 3) );
surfaceSmoothGeometry.setIndex(surface.triPointVert);
surfaceSmoothGeometry.computeVertexNormals(true);
let surfaceSmoothObject = new THREE.Mesh(
surfaceSmoothGeometry,
new THREE.MeshBasicMaterial({color:0xffffff, wireframe:true, side:THREE.DoubleSide, flatShading:true})
new THREE.MeshPhongMaterial({color:0xffffff, side:THREE.DoubleSide, flatShading:true})
);

38
region.js
View File

@ -36,7 +36,7 @@ export const Region =
let vert = Region.XYZ(inVoxIndex);
vertPointer = vertices.length;
voxPointVert[inVoxIndex] = vertPointer;
vertPointNeighbors.push([]);
vertPointNeighbors.push([[], [], [], []]);
vertices.push(vert);
return [vertPointer, false];
@ -46,7 +46,7 @@ export const Region =
return [vertPointer, true];
}
}
function Edge(vert1, vert1WasFull, vert2, vert2WasFull)
function Edge(vert1, vert1WasFull, vert2, vert2WasFull, inOrientationGroup)
{
/*
Sets up neighbor relationships between vert1 and vert2.
@ -58,21 +58,27 @@ export const Region =
let p1Neighbors = vertPointNeighbors[vert1];
let p2Neighbors = vertPointNeighbors[vert2];
// if the two verts were already filled
if((vert1WasFull && vert2WasFull))
{
// it's possible that they are already connected
if(p1Neighbors.indexOf(vert2) !== -1)
if(p1Neighbors[0].indexOf(vert2) !== -1)
{
// quit if they are
return;
}
}
p1Neighbors.push(vert2);
p2Neighbors.push(vert1);
p1Neighbors[0].push(vert2);
p2Neighbors[0].push(vert1);
p1Neighbors[inOrientationGroup+1].push(vert2);
p2Neighbors[inOrientationGroup+1].push(vert1);
}
function Face(a, b, c, d /* vox indices */)
function Face(a, b, c, d /* vox indices */, inOrientationGroup)
{
let [p1, p1WasFull] = Vert(a);
let [p2, p2WasFull] = Vert(b);
@ -81,10 +87,10 @@ export const Region =
triPointVert.push(p1, p2, p3, p3, p4, p1);
Edge(p1, p1WasFull, p2, p2WasFull);
Edge(p2, p2WasFull, p3, p3WasFull);
Edge(p3, p3WasFull, p4, p4WasFull);
Edge(p4, p4WasFull, p1, p1WasFull);
Edge(p1, p1WasFull, p2, p2WasFull, inOrientationGroup);
Edge(p2, p2WasFull, p3, p3WasFull, inOrientationGroup);
Edge(p3, p3WasFull, p4, p4WasFull, inOrientationGroup);
Edge(p4, p4WasFull, p1, p1WasFull, inOrientationGroup);
}
var i;
@ -113,13 +119,13 @@ export const Region =
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[BU]){ Face(BU, BC, TC, TU, 0); }
if(!inVoxels[BR]){ Face(BC, BR, TR, TC, 1); }
if(!inVoxels[TA]){ Face(TA, TU, TC, TR, 2); }
if(!inVoxels[CL]){ Face(BA, BU, TU, TA); }
if(!inVoxels[CD]){ Face(BR, BA, TA, TR); }
if(!inVoxels[CB]){ Face(BA, BU, BC, BR); }
if(!inVoxels[CL]){ Face(BA, BU, TU, TA, 1); }
if(!inVoxels[CD]){ Face(BR, BA, TA, TR, 0); }
if(!inVoxels[CB]){ Face(BA, BU, BC, BR, 2); }
}
}