Seems fine to me.

@Juliean Hmm ok, worth thinking about. I'm going to experiment a bit today and see how it'll turn out.

I managed to get them working, I added texel-snapping part from MJP Shadows project, and calculated frustum centroid manually and not using BoundingSphere, I don't know if that also makes a difference, but I don't care to check at this moment (I have some suspicions why they give different results)…