public List <Triangle> Polygonise(Gridcell grid, float isolevel)
{
List <Triangle> list = new List <Triangle>();
new List <Vector3>();
Vector3[] vectorArray = new Vector3[12];
int index = 0;
if (grid.val[0] < isolevel)
{
index |= 1;
}
if (grid.val[1] < isolevel)
{
index |= 2;
}
if (grid.val[2] < isolevel)
{
index |= 4;
}
if (grid.val[3] < isolevel)
{
index |= 8;
}
if (grid.val[4] < isolevel)
{
index |= 0x10;
}
if (grid.val[5] < isolevel)
{
index |= 0x20;
}
if (grid.val[6] < isolevel)
{
index |= 0x40;
}
if (grid.val[7] < isolevel)
{
index |= 0x80;
}
if (this.edgeTable[index] == 0)
{
return(new List <Triangle>());
}
if ((this.edgeTable[index] & 1) != 0)
{
vectorArray[0] = this.VertexInterp(isolevel, grid.p[0], grid.p[1], grid.val[0], grid.val[1]);
}
if ((this.edgeTable[index] & 2) != 0)
{
vectorArray[1] = this.VertexInterp(isolevel, grid.p[1], grid.p[2], grid.val[1], grid.val[2]);
}
if ((this.edgeTable[index] & 4) != 0)
{
vectorArray[2] = this.VertexInterp(isolevel, grid.p[2], grid.p[3], grid.val[2], grid.val[3]);
}
if ((this.edgeTable[index] & 8) != 0)
{
vectorArray[3] = this.VertexInterp(isolevel, grid.p[3], grid.p[0], grid.val[3], grid.val[0]);
}
if ((this.edgeTable[index] & 0x10) != 0)
{
vectorArray[4] = this.VertexInterp(isolevel, grid.p[4], grid.p[5], grid.val[4], grid.val[5]);
}
if ((this.edgeTable[index] & 0x20) != 0)
{
vectorArray[5] = this.VertexInterp(isolevel, grid.p[5], grid.p[6], grid.val[5], grid.val[6]);
}
if ((this.edgeTable[index] & 0x40) != 0)
{
vectorArray[6] = this.VertexInterp(isolevel, grid.p[6], grid.p[7], grid.val[6], grid.val[7]);
}
if ((this.edgeTable[index] & 0x80) != 0)
{
vectorArray[7] = this.VertexInterp(isolevel, grid.p[7], grid.p[4], grid.val[7], grid.val[4]);
}
if ((this.edgeTable[index] & 0x100) != 0)
{
vectorArray[8] = this.VertexInterp(isolevel, grid.p[0], grid.p[4], grid.val[0], grid.val[4]);
}
if ((this.edgeTable[index] & 0x200) != 0)
{
vectorArray[9] = this.VertexInterp(isolevel, grid.p[1], grid.p[5], grid.val[1], grid.val[5]);
}
if ((this.edgeTable[index] & 0x400) != 0)
{
vectorArray[10] = this.VertexInterp(isolevel, grid.p[2], grid.p[6], grid.val[2], grid.val[6]);
}
if ((this.edgeTable[index] & 0x800) != 0)
{
vectorArray[11] = this.VertexInterp(isolevel, grid.p[3], grid.p[7], grid.val[3], grid.val[7]);
}
int num2 = 0;
for (int i = 0; this.triTable[index][i] != -1; i += 3)
{
list.Add(new Triangle(vectorArray[this.triTable[index][i]], vectorArray[this.triTable[index][i + 1]], vectorArray[this.triTable[index][i + 2]]));
num2++;
}
return(list);
}
public List <Triangle> GenerateTriangles(float isolevel, Gridcell grid)
{
List <Triangle> list = new List <Triangle>();
new List <Vector3>();
int index = 0;
if (grid.val[0] < isolevel)
{
index++;
}
if (grid.val[1] < isolevel)
{
index += 2;
}
if (grid.val[2] < isolevel)
{
index += 4;
}
if (grid.val[3] < isolevel)
{
index += 8;
}
if (grid.val[4] < isolevel)
{
index += 0x10;
}
if (grid.val[5] < isolevel)
{
index += 0x20;
}
if (grid.val[6] < isolevel)
{
index += 0x40;
}
if (grid.val[7] < isolevel)
{
index += 0x80;
}
if ((index != 0) && (index != 0xff))
{
Vector3[] vectorArray = new Vector3[12];
if (this.IsBitSet(this.edgeTable[index], 1))
{
vectorArray[0] = this.VertexInterp(isolevel, grid.p[0], grid.p[1], grid.val[0], grid.val[1]);
}
if (this.IsBitSet(this.edgeTable[index], 2))
{
vectorArray[1] = this.VertexInterp(isolevel, grid.p[1], grid.p[2], grid.val[1], grid.val[2]);
}
if (this.IsBitSet(this.edgeTable[index], 4))
{
vectorArray[2] = this.VertexInterp(isolevel, grid.p[2], grid.p[3], grid.val[2], grid.val[3]);
}
if (this.IsBitSet(this.edgeTable[index], 8))
{
vectorArray[3] = this.VertexInterp(isolevel, grid.p[3], grid.p[0], grid.val[3], grid.val[0]);
}
if (this.IsBitSet(this.edgeTable[index], 0x10))
{
vectorArray[4] = this.VertexInterp(isolevel, grid.p[4], grid.p[5], grid.val[4], grid.val[5]);
}
if (this.IsBitSet(this.edgeTable[index], 0x20))
{
vectorArray[5] = this.VertexInterp(isolevel, grid.p[5], grid.p[6], grid.val[5], grid.val[6]);
}
if (this.IsBitSet(this.edgeTable[index], 0x40))
{
vectorArray[6] = this.VertexInterp(isolevel, grid.p[6], grid.p[7], grid.val[6], grid.val[7]);
}
if (this.IsBitSet(this.edgeTable[index], 0x80))
{
vectorArray[7] = this.VertexInterp(isolevel, grid.p[7], grid.p[4], grid.val[7], grid.val[4]);
}
if (this.IsBitSet(this.edgeTable[index], 0x100))
{
vectorArray[8] = this.VertexInterp(isolevel, grid.p[0], grid.p[4], grid.val[0], grid.val[4]);
}
if (this.IsBitSet(this.edgeTable[index], 0x200))
{
vectorArray[9] = this.VertexInterp(isolevel, grid.p[1], grid.p[5], grid.val[1], grid.val[5]);
}
if (this.IsBitSet(this.edgeTable[index], 0x400))
{
vectorArray[10] = this.VertexInterp(isolevel, grid.p[2], grid.p[6], grid.val[2], grid.val[6]);
}
if (this.IsBitSet(this.edgeTable[index], 0x800))
{
vectorArray[11] = this.VertexInterp(isolevel, grid.p[3], grid.p[7], grid.val[3], grid.val[7]);
}
for (int i = 0; this.triTable[index][i] != -1; i += 3)
{
list.Add(new Triangle(vectorArray[this.triTable[index][i]], vectorArray[this.triTable[index][i + 1]], vectorArray[this.triTable[index][i + 2]]));
}
}
return(list);
}
public void Load(float[,,] vals = null)
{
if (vals != null)
{
this.density = vals;
}
else
{
new System.Random();
this.density = new float[this.length, this.length, this.length];
for (int k = 0; k < this.length; k++)
{
for (int n = 0; n < this.length; n++)
{
for (int num3 = 0; num3 < this.length; num3++)
{
this.density[k, num3, n] = 0f;
}
}
}
for (int m = 5; m < 8; m++)
{
for (int num5 = 5; num5 < 8; num5++)
{
for (int num6 = 0; num6 < this.length; num6++)
{
this.density[m, num6, num5] = 1f;
}
}
}
this.density[7, 5, 7] = 0f;
}
this.ratioX = vals.GetLength(0) / this.length;
this.ratioY = vals.GetLength(1) / this.length;
this.ratioZ = vals.GetLength(2) / this.length;
this.gridArray = new Gridcell[this.length - 1, this.length - 1, this.length - 1];
for (int i = 0; i < (this.length - 1); i++)
{
for (int num8 = 0; num8 < (this.length - 1); num8++)
{
for (int num9 = 0; num9 < (this.length - 1); num9++)
{
this.gridArray[i, num9, num8] = this.GenerateGridCell(i * this.ratioX, num9 * this.ratioY, num8 * this.ratioZ);
}
}
}
Gridcell[,,] gridArray = this.gridArray;
int upperBound = gridArray.GetUpperBound(0);
int num11 = gridArray.GetUpperBound(1);
int num12 = gridArray.GetUpperBound(2);
for (int j = gridArray.GetLowerBound(0); j <= upperBound; j++)
{
for (int num14 = gridArray.GetLowerBound(1); num14 <= num11; num14++)
{
for (int num15 = gridArray.GetLowerBound(2); num15 <= num12; num15++)
{
Gridcell grid = gridArray[j, num14, num15];
this.triangles.AddRange(this.Polygonise(grid, this.Isolevel));
}
}
}
}