Light Space Perspective Shadow Mapping

Can anybody please explain how LiSPSMs are implemented? I’m trying to use the code they provide but I never succeed in obtaining good results. I believe I’m missing something. If anyone implemented this, can you give me some advice? Maybe some clear steps of achieve the effect or maybe explaining how the LiSPSMs really work.

Thanks in advance!

You might read the short lead-in section “3.2.3 Global Partitioning”. It’s right after shadow warping techniques like PSM and LiSPSM are described. Then if you’re interested, continue reading.