public static Mesh Combine(MeshFilter[] filters, bool weld)
{
if (filters.Length == 0)
{
Debug.LogError("Mesh list is empty.");
return(null);
}
Transform root = filters[0].transform;
int meshCount = filters.Length;
MeshExtended[] extended = new MeshExtended[meshCount];
for (int m = 0; m < meshCount; m++)
{
MeshFilter filter = filters[m];
extended[m] = new MeshExtended();
extended[m].Prepare(filter.sharedMesh, weld, root, filter.GetComponent <Transform>(), MeshExtended.SizeMethod.Bounds);
}
UVPackerSqr.Box[] boxes = UVPackerSqr.Pack(extended);
Mesh combined = new Mesh();
List <Vector3> combinedVertices = new List <Vector3>();
List <Vector2> combinedUVs = new List <Vector2>();
List <Vector3> combinedNormals = new List <Vector3>();
List <int> combinedTris = new List <int>();
int triOffset = 0;
for (int meshIndex = 0; meshIndex < meshCount; meshIndex++)
{
MeshExtended extmesh = boxes[meshIndex].Extended;
Vector3[] vertices = extmesh.Vertices;
Vector2[] uvs = boxes[meshIndex].PackedUVs;
Vector3[] normals = extmesh.Normals;
int[] triangles = extmesh.Triangles;
int vertexCount = vertices.Length;
int triCount = triangles.Length;
for (int v = 0; v < vertexCount; v++)
{
combinedVertices.Add(vertices[v]);
combinedUVs.Add(uvs[v]);
combinedNormals.Add(normals[v]);
}
for (int t = 0; t < triCount; t++)
{
combinedTris.Add(triangles[t] + triOffset);
}
triOffset = combinedVertices.Count;
}
UVPacker.AdjustSpace(combinedUVs);
combined.SetVertices(combinedVertices);
combined.SetUVs(0, combinedUVs);
combined.SetNormals(combinedNormals);
combined.SetTriangles(combinedTris, 0);
return(combined);
}
public void Calculate(int index = 0)
{
Vertices.Clear();
Triangles.Clear();
UVs.Clear();
var s = Size / 2f;
Vector3[] p = new Vector3[] {
new Vector3(-s, -s, -s) + Position, // 0 0
new Vector3(-s, s, -s) + Position, // 1 1
new Vector3(s, s, -s) + Position, // 2 2
new Vector3(s, -s, -s) + Position, // 3 3
new Vector3(-s, -s, s) + Position, // 4 0
new Vector3(-s, s, s) + Position, // 5 1
new Vector3(s, s, s) + Position, // 6 2
new Vector3(s, -s, s) + Position, // 7 3
};
for (int i = 0; i < Faces.Length; i++)
{
if (Faces[i])
{
Triangles.AddRange(AddTriangles(index + Vertices.Count));
UVs.AddRange(UVPacker.GetCubeUVs(i, CubeTypes[type]));
switch (i)
{
case 0: Vertices.AddRange(new Vector3[] { p[0], p[1], p[2], p[3] }); break;
case 1: Vertices.AddRange(new Vector3[] { p[3], p[2], p[6], p[7] }); break;
case 2: Vertices.AddRange(new Vector3[] { p[7], p[6], p[5], p[4] }); break;
case 3: Vertices.AddRange(new Vector3[] { p[4], p[5], p[1], p[0] }); break;
case 4: Vertices.AddRange(new Vector3[] { p[1], p[5], p[6], p[2] }); break;
case 5: Vertices.AddRange(new Vector3[] { p[4], p[0], p[3], p[7] }); break;
default: break;
}
}
}
this.Calculated = true;
}
