Quick start
Setup
- Add the Ultimate River Tool package to your project.
- Place the actor UltimateRiverTool — Content\UltimateRiverTool\Blueprints\BP_UltimateRiverTool — into your level.
- Set up RiverWidth and Smoothness, then start creating the spline path for the river.
- Done!
Vertex paint
You can draw additional foam on the river using the Unreal Engine Vertex Paint tool (Shift+2) with the (0,1,0) color selected.
To paint visibility, paint a (visibilityrate, X, X) color, where visibilityrate = 0 is fully transparent and visibilityrate = 1 is fully opaque.
Attention: if you modify the Smoothness parameter, vertex paint will be discarded because the vertex count and positions change. Paint your vertices only after the Smoothness parameter is fixed.
Common parameters
All parameters are sorted into clearly named groups inside BP_UltimateRiverTool, so you can tune width, flow, foam, displacement and material settings from one place.
Watch
Ultimate River Tool in action
Full video walkthrough