I’m having a GrabDoc issue I was hoping someone could help with - I feel like i’m missing something really obvious with it.
I’m scattering pebbles across the canvas to make tileable textures and when using the GrabDoc alpha it works fine usually, but occasionally one of the pebbles ends up being much higher than others in the canvas and the alpha ends up being disproportionally strong there. Also occasionally, the alpha becomes completely opaque/1-bit alpha but it seems to be related to this height/depth issue.
There was a thread I found showing a picture of the issue (but arrived at when using GrabDoc with a normal model):
http://www.zbrushcentral.com/showthread.php?t=69857
When I get the above result, sometimes restarting zbrush after saving the document will fix it, other times it won’t.
Is there some way of controlling or rectifying the relative depth of stuff on the canvas that i’m just missing? doing test GrabDocs every few strokes isn’t much of a solution 