ZBrushCentral

Please how make more 90 degrees on curves model

hi …
i use the tool curve tube and is good how works
but just a question :
how can I do that when using this curve tube tool, when make mesh that the curves, on the edges, are more pronounced, and much more defined, almost at an angle of 90 ?
i attach a picture below to show what i need…
any help i will apreciate so much please.
thanks (picture below) …

Attachments

try turning up the curve resolution

brush > modifiers > curve res

thanks