Original Post
i''ve recently developed a new simple approach for doing shadow mapping with increased resolution near the observer.
i''ve described the algorithm on my homepage(code,math,pics,demo soon) feel free to try it out and post your results in this thread for discussion
http://www.vmars.tuwien.ac.at/~scherzer/lssm/index.html
notes: i''ve recently worked with perspective shadow maps, but my results where not robust in arbitrary scenes (see
http://www.vmars.tuwien.ac.at/~scherzer/psm/index.html
for my experiences), so i created this approach to hopefully include the benefits of psms, but not their drawbacks.