ZBrushCentral

problem with bpr shadows

hi all!
i need your help!
when i render with BPR, the shadows seem to “squared” as if it lacked resolution and it comes dirty all around.
i tryed to set up the number of rays, but without effect.
i set up blur value, but the effect was to dissolve the shadow so it wasn’t visible as i wished.
i’d like to obtain a sharp shadow on its borders and smooth inside.
could you help me, please?

PS:i noticed that the fenomenon comes when I append a sub tool, in particular the one showed in the image below

Attachments

a.jpg

anyone?
please i need shadows!:cry:

…so i’m the only one with this problem?

I’m having this very same problem only a bit more extreme with darker dirty shadows. Never existed with previous version of Zbrush. A solution or answer would be appreciated.