Landscape seams

alecchalmers

I've been stuck on this for a while, there are seams that running down parts of my landscape that I can't get rid of no matter what I do.

So far I have tried:
Changing the amount of light bounces in the lightmass settings.
Deleting the landscape and trying again.
Deleting the dominant directional light and creating a new one.
Adjusting many settings for the light, the landscape and lightmass.

I've created a few different Landscape materials using different methods, but they seem to have no effect either, although I don't think the issue it with the Materials anyway.

I've found that smoothing over the line in landscape mode works very occasionally, as in the lines run across the whole landscape and smoothing only works on very small parts of the line.
The majority of the line isn't affected by smooth or any other sculpting tools.

Someone in a similar thread had the same issue but fixed it with smoothing, although it doesn't seem possible here:
https://forums.epicgames.com/threads/911139-Landscape-Seams-along-the-edges-of-Components

As you can see below it isn't visible in unlit mode:

repete

This is the only way I know of but it works:

http://www.polycount.com/forum/showthread.php?t=129507

alecchalmers

Hey, this sounds promising I understand the part about using terrain smooth and preserving details. However could you elaborate on this:

"set up a terrain material and I have used the World coordinate 3way function"

What is the world coordinate 3way function and how might I implement this into my material? Thanks for your help repete.

repete

The world coordinate 3way projects your textures on the terrain. Remember to use a Texture Object and not a Texture sample if you are using it and the param node adjusts the scale of the projected texture !!!

Here is a simple setup (ignore the red markings):





There is very little info on this function but it works really well and you just have to experiment with it to get the best results.

Here is some info on the topic:

https://docs.unrealengine.com/latest/INT/Engine/Rendering/Materials/Functions/Reference/Texturing/index.html

https://forums.epicgames.com/threads/768080-3d-projection-texture-coordinates-for-Terrain-layers

Good luck :thumbup:

alecchalmers wrote: »

Hey, this sounds promising I understand the part about using terrain smooth and preserving details. However could you elaborate on this:

"set up a terrain material and I have used the World coordinate 3way function"

What is the world coordinate 3way function and how might I implement this into my material? Thanks for your help repete.

alecchalmers

Ahh nevermind I was getting expressions and functions mixed up. I've found the function, now to learn what this does. Is this function required in order to fix the problem or were you just using it in the example?

alecchalmers

Oh wow thanks for the explanation!, I'll delve right into that now