   EVSM artifacts at depth discontinuations
Hello!I'm getting artifacts that seem to be related to increasing the exponent coefficient (C) in exp(c*depth) and -exp(-c*depth). The more I increase it, the bigger the artifacts seem to get. The artifact became much more apparent when I added a 5x5 gaussian blur to it. I believe I've seen the same artifact in an article about Exponential shadow maps (ESM, not EVSM). Here's an image of multiple instances of the artifact: Here's how it look with normal shadow mapping and PCF filtering:  Is this a known problem of E(V)SMs? Can it be solved? Maybe it's only noticeable due to the extremely aligned geometry I have? I really don't understand much of the math behind all this, but I'll try to find the ESM article that solved a similar problem...
  Everytime I saw that, it was due to cascade transition zone. but if in your case you have only 1 cascade, then... duno   ;Damn it. Sorry, it was a bug on my end. My copied blur shader only blurred RGB, rendering the -exp(-c*depth) warp useless... Nothing to see here... ._.