UDK - Landscape breaking when painting

TheAxiom · Mar 2015

Hello you lovely people.
So basically when I paint on certain sections of my terrain, it just breaks. It lets me paint on other sections. This varies by texture.

http://prntscr.com/6lstem

Any help please? Thanks!

TheAxiom · Mar 2015

Also I'm getting seams on my textures even though there aren't seams on them in Photoshop.
http://prntscr.com/6lt2ft

I'm using a texture coordinate at 64 x 64. That's power of 2 so it should be fine right?

wes.sau · Mar 2015

Judging by the number of materials you have, I'm guessing you're hitting the maximum texture sampler limit on that section. Have you tried setting your texture nodes in the landscape material to be "Shared:Wrap"? That should rid the issue.

*Edit* Nevermind, just realized you're using UDK no UE4. UDK is still limited to the DX9 maximum texture sampler limit of 16. You'll have to reduce the number of layers painted on that section in order for the material instance to compile correctly on that landscape section.

wes.sau · Mar 2015

In this post I describe the max texture issue more in depth:

http://www.polycount.com/forum/showthread.php?p=2120989#post2120989

Also for your seams, not sure what's going on there, maybe post a screen of your landscape layer UVs.

TheAxiom · Mar 2015

I had this same issue when I was using only three textures

TheAxiom · Mar 2015

Okay so apparently each section of my terrain is only allowed four different materials max before it disappears. How annoying.

Also, the seam is being caused where the landscape breaks up in to sections.

repete · Mar 2015

you can try this it was the only thing that work for me on UDK:

http://www.polycount.com/forum/showthread.php?p=1976424#post1976424

UDK - Landscape breaking when painting

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