Unreal Engine 4.26 Preview

[DreamGoblin (WordsAndDreams)]

@DreamGoblin

Been having some trouble with the water plugin and world comp. Does anyone know why this would be happening:

Specifically, I’m referring to the way the water material seems to just stop rendering at around 153K units in both X and Y (so the image above is showing the top right of its maximum bounds). Not sure if it’s something with the way I have my world comp/landscape setup (I’ve had this same problem in multiple attempts at creating a world comp setup) or if it’s just a limitation of the water plugin?

It still deforms the landscape as expected. It’s just the water material itself that is getting cut-off. In case it makes a difference, this instance of world comp was setup by importing an externally made tiled landscape. Also, I’m up to date with 4.26 via Github (although this has been happening since it first went live).

While I’m sort of on the subject, I’m also having a problem with the water body landscape weightmap setting. In this example I have just a basic landscape material setup with two layers (Color1/green and Color2/red). I can get it to work just fine with a landscape spline, but it doesn’t seem to show up with any of the water bodies (a river in this case). Am I just not understanding what the “Layer Weightmap Settings” does on a water body? I assume like the landscape spline it just looks for the landscape layer you provide it, but that isn’t happening here.

I’ve figured these out. Quoting myself in case anyone else runs into these and was wondering what to do.

For the water material not extending past a certain distance, you need to go to WaterMeshActor and then in the details panel find the “Mesh” tab. There are two things you can then change to extend the material. These are “Tile Size” and “Extent in Tiles”. I’m not sure what (if any) performance considerations this presents, or if it is better to increase one or the other, but this at least solves the basic issue I was having. Here’s a screenshot:

https://i.imgur.com/kM1URCR.png

For the water bodies affecting the landscape layers, you need to go to the WaterBrushManager and then navigate to the Settings tab in the details panel. There you need to make sure “Affect Weightmap” is checked and also add the specific layers you want to use in “Affected Weightmap Layers”.

https://i.imgur.com/EA2XxcV.png