Okay guys, I'm almost ready with the implementation of this technique, but I have one problem.
How to setup the projection (ortho) and view (??) matrix of directional light for a given scene bounds?
let's say my scene mins are (-100, 0, -100) and maxs are (100,50,100).
How should I setup the light matrices?
I've already done spot and point shadow mapping, but the directional one is still bothering me ;s thanks for any tips!