public static void SetUV(MaterialData mat, Mesh mesh, UVMapFn mapFn)
{
List <Vector2> uvs = new List <Vector2>();
for (int i = 0; i < mesh.vertices.Length; ++i)
{
uvs.Add(Vector2.zero);
}
for (int i = 0; i < mesh.triangles.Length; i += 3)
{
int t1 = mesh.triangles[i];
int t2 = mesh.triangles[i + 1];
int t3 = mesh.triangles[i + 2];
TriangleData td = new TriangleData(t1, t2, t3);
Vector3 va = mesh.vertices[t1];
Vector3 vb = mesh.vertices[t2];
Vector3 vc = mesh.vertices[t3];
TriangleData.SetX(td, va.x, vb.x, vc.x);
TriangleData.SetY(td, va.y, vb.y, vc.y);
TriangleData.SetZ(td, va.z, vb.z, vc.z);
mapFn(mat, td, uvs);
}
mesh.SetUVs(0, uvs);
}