Ok I am making seperate brushes to go ontop of the main ground for use of displacement landscapes..so..it's all good till I go and test them and see this

http://img391.imageshack.us/img391/6106/help1iu.jpg

How can I get that to blend into the bottom brush?

Also, I didn't displace the bottom brush, because then it also happens inside the buildings..and that doesnt look too good

a bigger screenshot is in order

sorry, here it is

http://img110.imageshack.us/img110/2209/help21fa.jpg

You need to make, or find youself an alpha texture. That way you cretae both as displacements and then you use Paint Alpha to blend textures together.

no clue what an alpha texture is :|

anybody mind filling me in?

first... are those two brushes (displacements) using the same texture or two different ones?

Bottom surface is a normal brush, top one is a displacement surface. I'd like to know my self if its possible to hide/blend where two surfaces meat up like that.

I don't get why you need a solid brush, do it all with displacement and make no draw brush underneat to block vis.

Select both displacement maps, go into the texture properties tool, clock the displacement tab and click the SEW button, make sure that both displacement brushes are flush with one another