Black Patches/Shadows

[Nathan.c]

Why am I getting these ugly black patches with my angled strata. I've fiddled with all the strata settings, soft shadows, sun angle, fuzzy zones patch sizes etc... Just wont go away, it will if I disable the it!!. Can someone help please before I launch my lappy out the window

[Dune]

You could try the displacement tolerance in the planet node. Raise it a bit incrementally by 0.1 and see if it goes away.

[digitalguru]

Sometimes it's in this setting:
Render node / Advanced tab/ subdiv settings / Ray Detail Muliplier

try setting from  0.25 to 1.0

might add a little extra to your render time

[WAS]

Yeah this is the ray detail multiplier. Not even extreme MPD/AA will help there.

[Nathan.c]

Thank you, Changing to 1.0 done it, that was driving me bat sh!t crazy.