/// <summary>
/// Projects UVs for each face using the closest normal on a sphere.
/// </summary>
/// <param name="pb"></param>
/// <param name="indexes"></param>
/// <param name="channel"></param>
public static void ProjectFacesSphere(ProBuilderMesh pb, int[] indexes, int channel = 0)
{
foreach (Face f in pb.facesInternal)
{
if (ArrayUtility.ContainsMatch <int>(f.distinctIndexesInternal, indexes))
{
f.elementGroup = -1;
f.manualUV = true;
}
}
SplitUVs(pb, indexes);
Vector2[] projected = Projection.SphericalProject(pb.positionsInternal, indexes);
Vector2[] uv = GetUVs(pb, channel);
for (int i = 0; i < indexes.Length; i++)
{
uv[indexes[i]] = projected[i];
}
/* and set the msh uv array using the new coordintaes */
ApplyUVs(pb, uv, channel);
}