Landscape and Textures

[Hotshot]

I am trying to build a Material for Landscape system.
I dont understand how to scale my textures so it fits on the Hightmap

The Hightmap in the Landscapesystem is not powered by 2, but the Textures is power by 2

So if the Hightmap is 2017 then the Textures is 2048 it does not match properly
I have tryed to scale the texture down to 2017 with the TerrainLayerCoords but it will not line up right.

Anyone know how to do this please let me know?

The Landscapesystem can handle one, power by 2 size, and it is 1024. When I use that it lines up perfectly

[JessieG]

Landscapes really aren't supposed to use a single texture that covers the entire thing from edge to edge perfectly (you'll get bad resolution that way) you're supposed to use tiling textures that you can tile using the terraincoordinate node in the material.

[Hotshot]

Thank you for responding.
I am not realy using it like that. I use a grayscale texture as a mask to blend 2 textures. The Mask is cover the entire map and blends 2 other (Tiled) Textures .
If the Mask is not the same size as the Hightmap it will not blend right.

[Graylord]

You're supposed to create the mask manually by painting the landscape materials on.

That's the whole point of the mateiral layers of the landscape tool, to do what you are trying to do with the mask.

[Hotshot]

Painting the Landscape manual?? That is a lot of work when it can be done by software...

[Graylord]

That's how it's meant to be done.

And no, it won't take long at all. Have you even tried the tools?

[Hotshot]

This is my flow mask



It is not easy to paint manual

[Jacky]

Create a new 2048x2048 document in photoshop then paste your hightmap on it and save it like that? This is what i understand might help when i read your first post.

[DGX]

You need to add a TerrainLayerCoords material expression and set mapping scale to properly align overlay texture.

EDIT: only now noticed that you've already tried that. Can you give a screenshot of how your landscape looks with this material applied?

[JessieG]

This is my flow mask



It is not easy to paint manual

The landscape system was meant to be hand painted in layers. I take it you made that for a static mesh in your 3D app before looking up how the landscape tool in UDK works? You can use a heightmap, but the layer blending is done manually to allow more control. Using a single texture that is stretched over an entire landscape to blend will look pretty bad and low resolution because of how big landscapes can be.

[geodav]

thought i reconized that sort of map, if you've been using TerreSculptor (HMES) you might want to watch these videos http://www.youtube.com/user/PendantixUDK?feature=watch

[cozzbp]

You definitely can use one huge color/Ambient Occlusion map for a landscape, and then tile on detailed textures over it. I would HIGHLY recommend this tutorial series:
http://www.polycount.com/forum/showthread.php?t=88933

It is intended for Cryengine, but he does a video showing how to get the terrain into the UDK and set up the shaders. Here is a landscape terrain I made with his tutorial:





As you can see, the large overhead view contains AO and color information, and then in the landscape layers you paint in variations and details.

[joshua.fontany]

Nice alphamap. You can use a couple of techniques to get this onto your UDK Landscape. You can import it as an Alpha layer in the Landscape toolbox (thus avoiding hand-painting it), and then craft a section of your Material to use the same layer Name. You should re-size the alpha/flow map to the same pixel width as your heightmap and follow the import workflow.
http://udn.epicgames.com/Three/Lands...map and Layers

Or, you can use it to blend in the material, as described in the slightly updated Landscape Materials page (using the power-of-2 version of the alphamap). If the devs are reading this, a pointer to some more docs on those new function nodes would be really cool.