public override void updateMesh()
{
mesh = new Mesh();
subTriangles = new List <Vector3>();
List <Vector3> verts = new List <Vector3>();
List <Vector3> normals = new List <Vector3>();
List <int> tris = new List <int>();
Vector3[,] controlVec = new Vector3[control.GetLength(0), control.GetLength(1)];
for (int x = 0; x < control.GetLength(0); ++x)
{
for (int y = 0; y < control.GetLength(1); ++y)
{
controlVec[x, y] = control[x, y].position;
}
}
//generate vertices
for (int x = 0; x <= resolution; ++x)
{
for (int y = 0; y <= resolution; ++y)
{
verts.Add(GeometryUtil.BezerpQuad(controlVec, (float)x / (resolution), (float)y / (resolution)));
}
}
//generate triangles
for (int x = 0; x < resolution; ++x)
{
for (int y = 0; y < resolution; ++y)
{
int c0 = x + y * (resolution + 1);
int c1 = c0 + 1;
int c2 = c1 + resolution;
int c3 = c2 + 1;
tris.Add(c0); tris.Add(c1); tris.Add(c2);
tris.Add(c3); tris.Add(c2); tris.Add(c1);
}
}
int vertCount = verts.Count;
mesh.SetVertices(verts);
mesh.SetTriangles(tris, 0);
mesh.RecalculateNormals();
normals = new List <Vector3>(mesh.normals);
//generate backface
for (int i = 0; i < 6 * resolution * resolution; i += 3)
{
tris.Add(tris[i] + vertCount);
tris.Add(tris[i + 2] + vertCount);
tris.Add(tris[i + 1] + vertCount);
verts.Add(verts[i / 3]);
normals.Add(-normals[i / 3]);
}
mesh.SetVertices(verts);
mesh.SetTriangles(tris, 0);
mesh.SetNormals(normals);
mesh.RecalculateBounds();
}