Cascaded Shadow Map Gaps

James Ordner

Cross-posting here from the UDK forum, cause I'm unlikely to get a response from there

While I was experimenting with fully dynamic lighting, which I have no choice but to use for the type of scenario I have in mind, I found this really annoying bug (I kicked the number of cascades up to 10 to highlight the problem, though it occurs at all values of 2 or greater at the borders of each cascade) -



I searched the forums and I found this thread, but they found no solutions. To top it off, Epic said that they were able to reproduce the bug and would work on it. That was over two years ago...

This leads me to assume that a workaround has been found, hence no bug fix (which I would really appreciate to hear if there is a solution ), or Epic just hasn't fixed it. Does anyone know a solution or what's going on?

Obscura

that 6 sided cylinder is probably holed at the top. add some material to it with 2-sided checked.if the problem is still here after that, then i dont know.

Jacky

I ran into that artifact even in Borderlands 2, so i guess Epic isn't bothering to fix it for UE3.

Keeping Cascade values at 10000, 10, 1 minimizes such artifacts for me but it all depends on the performance/quality you're going after.

Hourences

I also never managed to find a solution for this. AFAIK there is no work around. If anything some of the dynamic shadow settings in the ini may help, but I doubt it. Never tried though.

James Ordner

Alright then, thanks guys. I'll try those values out Jacky and see if it doesn't look better. Is there any other way to have sharp dynamic shadows without using cascade?