ZBrushCentral

keeping plane corners sharp

hi,

How can I keep the corners of a plane (ie. single sided geometry) from rounding during smoothing? I’ve tried the crease function but that only works on the edges, not the corners. It’s a curved form (a number of faces from a sphere in maya) so turning off ‘smt’ won’t work either as I want to smooth the internal edges, not keep the faceted appearance.
thanks

j

You could try storing a Morph Target at the lowest level before subdividing. Divide until you have the resolution you need then return to level 1 and switch the Morph Target.

When I tried this I actually got better results with no creases (not what I expected).

tried it Marcus but I still get rounded edges.

what I intended to do was map the sculpted surface as a bump or displacement back onto the segment in maya then duplicate it round to recreate a sphere (minus the poles). I may get away with just merging the top vertices without wrecking the UV’s too much…

Another way you might consider is to UV map the area you want to work on as a separate UV tile but import the whole sphere into ZBrush. You would then be able to divide the sphere without problems. Using Polygroups>UV Groups to create a polygroup for the area you want to work on you can then use Mesh Visibility if you needed to.

yeah that’s probably the way I’ll go.
bit of a workaround tho =/ Thought there’d have been some way of pinning those corners. Seems to defeat the object of creasing, especially when the pixo documentation itself mentions it’s useful for edges of planes… but not really… =S

cheers marcus :slight_smile: