Block PCG Foliage from Spawning Meshes in a Waterbody River

Development World Creation
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1

Hello, Everyone!

Happy Easter to those who celebrate/revere it!

I cannot figure out to block PCG Foliage from spawning meshes in a WaterbodyRiver. I have no trouble with the WaterbodyLake. has any one else figured this out? I have tried several things and followed several tutorials and nothing works.

WaterbodyLake

ScreenshotLake
ScreenshotLake1148×697 239 KB

WaterbodyRiver

ScreenshotRiver
ScreenshotRiver523×860 277 KB

Bounds Modifier for the WaterbodyRiver spline

BoundsModifier
BoundsModifier826×272 37.6 KB

I’ve tried Set for the Mode as well. The Spline Sampler is set to On Splne and Distance.

2

Looks like you have three negative values and one positive.

3

Thanks for looking, that was just a typo - it doesn’t work with a positive value for the Max Y either.

4

Try min -1000 all three

and max 1000 all three

5

Thanks again, but that didn’t work either. I think I’m going to have to go into Top View, Put a Blueprint Actor closed loop spline into the scene, add points, and outline the river then in the PCG graph, use a Spline Sample, get interior points, project them onto the landscape and use a Difference node to subtract from the PCG foliage.

6

you could manually force the PCG to line trace and check what material/texture it resolves to before placing or not placing the instance…
But you are going to have a faster/easier time doing the opposite. Select all the instances manually and delete.