public static List <MCBarycentricUnit> CreatePrecomputedVolumeMesh(DMC.Node Tetrahedron)
{
DMC.Hexahedron[] rootHexahedra = ExtractHexahedra(Tetrahedron);
List <DMC.Hexahedron> subdividedHexahedra = new List <DMC.Hexahedron>();
for (int i = 0; i < 4; i++)
{
subdividedHexahedra.AddRange(DMC.DebugAlgorithm.GenerateSubdividedHexahedronList(rootHexahedra[i], 2));
}
return(ConvertHexahedraToBarycentric(subdividedHexahedra, Tetrahedron));
}
public void MeshifyNode(DMC.Node node)
{
GameObject clone = Object.Instantiate(MeshPrefab, new Vector3(0, 0, 0), Quaternion.identity);
Color c = Utility.SinColor(node.Depth * 3f);
clone.GetComponent <MeshRenderer>().material.color = new Color(c.r, c.g, c.b, 0.9f);
clone.transform.localScale = Vector3.one * WorldSize;
clone.name = "Node " + node.Number + ", Depth " + node.Depth;
MeshFilter mf = clone.GetComponent <MeshFilter>();
mf.mesh = DMC.DebugAlgorithm.PolyganiseNode(PrecomputedVolumeMesh, node);
clone.GetComponent <Transform>().SetParent(Parent);
UnityObjects[node.Number] = clone;
}
public static UnityEngine.Mesh PolyganiseNode(List <MCBarycentricUnit> PrecomputedMesh, DMC.Node node)
{
List <Strucs.GridCell> MCCells = ConvertVolumeMeshToCartesian(PrecomputedMesh, node);
List <Vector3> Vertices = new List <Vector3>();
foreach (Strucs.GridCell cell in MCCells)
{
Polyganiser.Polyganise(cell, Vertices, 0);
}
int[] triangles = new int[Vertices.Count];
for (int i = 0; i < Vertices.Count; i++)
{
triangles[i] = i;
}
UnityEngine.Mesh m = new UnityEngine.Mesh();
m.vertices = Vertices.ToArray();
m.triangles = triangles;
m.RecalculateNormals();
return(m);
}
public static List <Strucs.GridCell> ConvertVolumeMeshToCartesian(List <MCBarycentricUnit> PrecomputedMesh, DMC.Node Tetrahedron)
{
List <Strucs.GridCell> Units = new List <Strucs.GridCell>();
for (int i = 0; i < PrecomputedMesh.Count; i++)
{
Strucs.GridCell unit = new Strucs.GridCell();
unit.Points = new Strucs.Point[8];
for (int j = 0; j < 8; j++)
{
unit.Points[j] = new Strucs.Point();
unit.Points[j].Position = Math.Tet_BaryToCart(Tetrahedron.Vertices[0], Tetrahedron.Vertices[1],
Tetrahedron.Vertices[2], Tetrahedron.Vertices[3], PrecomputedMesh[i].BarycentricCoords[j]);
unit.Points[j].Density = Utility.DebugNoise(unit.Points[j].Position);
}
Units.Add(unit);
}
return(Units);
}
public static List <MCBarycentricUnit> ConvertHexahedraToBarycentric(List <Hexahedron> Hexahedra, DMC.Node Tetrahedron)
{
List <MCBarycentricUnit> VolumeMesh = new List <MCBarycentricUnit>();
float a = Hexahedra.Count / 4;
for (int i = 0; i < Hexahedra.Count; i++)
{
bool flip = false;
MCBarycentricUnit u = new MCBarycentricUnit();
u.BarycentricCoords = new Vector4[8];
for (int j = 0; j < 8; j++)
{
if (flip)
{
u.BarycentricCoords[j] = Math.Tet_CartToBary(Tetrahedron.Vertices[0], Tetrahedron.Vertices[1],
Tetrahedron.Vertices[2], Tetrahedron.Vertices[3], Hexahedra[i].Vertices[(j + 4) % 8]);
}
else
{
u.BarycentricCoords[j] = Math.Tet_CartToBary(Tetrahedron.Vertices[0], Tetrahedron.Vertices[1],
Tetrahedron.Vertices[2], Tetrahedron.Vertices[3], Hexahedra[i].Vertices[j]);
}
}
VolumeMesh.Add(u);
}
return(VolumeMesh);
}
