Removing grass and small foliage

How to change generated runtime terrain

Summary

Published: Mar 18 2025 by justarandomguyintheinternet Last documented update: Jul 08 2025 by mana vortex

This guide shows how to selectively block small foliage such as grass and pebbles, which is generated at runtime for terrain.

If you would rather edit other objects: don't. Remove the original, then spawn your edited object in the same spot.

First, find the worldTerrainMeshNode on which the foliage resides, using RedHotTools
- To make this easier, go to the settings tab of the World Inspector window, and set "Show Marker" to always
Copy the mesh path clipboard by middle-mouse-button clicking it

Now, add the mesh file to your WolvenKit project
Open the mesh file
At the top of the mesh view window, you will see a collection of "CBitMapTexture / Texture Preview" headers
- Locate the CBitMapTexture which when hovered shows the file-name ...foliage.xbm
- Right click it, and select "Extract Embedded File", and chose a location to save it too (Default is fine)
Find the one which is a BW texture, and the corresponding CBitMap texture one, which is named ...foliage.xbm
Right-Click the CBitMapTexture one, and select extract

This texture is used as a mask, to block foliage spawned at runtime based on various other embedded masks, appearing in certain spots

Try and figure out which part of the texture corresponds to what part of the world

Now you must figure out what part of the texture to edit, to do this try and map the texture to the game world
E.g.

Export the .xbm using WKit's exporter, as .png
Open it in e.g. MS-Paint
Paint the parts of which you want to remove the foliage black
- Make sure you use full black, and do not end up with grayscale pixels
Re-import the texture into WKit

Make sure you set the Flags of the Value is set to Default

Last updated 20 days ago