Quickstart
From a fresh Houdini scene to a scattered forest floor in five minutes. Six steps. No prior knowledge of the HDA required.
Option A
Install the Windows InstallerDouble click Magic_Scatter_World_Installer.exe,A window appears asking where to install the Magic_Scatter_World files (default
`%LOCALAPPDATA%\Magic_Scatter_World`) and lists every Houdini version it found.
Tick versions, click **Install**, restart Houdini → **Magic Scatter World** shelf tab
appears. Bundled, self-contained — no Python install needed on the artist's
machine.
Option A2
If you prefer the source-folder layout (or you're on macOS/Linux):
| Platform | Double-click |
|---|---|
Windows `install.bat`
macOS `install.command`
Linux `install.command` (or `python3 install.py` from a terminal)
Option B
Python Shell one-liner** *(quickest if Houdini is already open):
**Windows → Python Shell** (or press the Python Shell pane tab).
Paste, replacing the path with your unzip location:
python exec(open(r"C:/PATH TO YOU FOLDER/houdini_install.py").read())
Folder picker → version checklist → restart Houdini.
Set a surface
Select a piece of geometry in your scene — a ground plane, a terrain, a wall — then click Set Surface. The label flips from amber to slate-blue when set.
Add scatter assets
Click Add Asset(s) and pick one or more meshes (grass, rocks, ivy, debris — anything). Each becomes a card in the asset tray. Adjust per-asset weight in the Wt: field to bias the scatter.
Paint the mask
Click ▶ PAINT. In the viewport, drag across the surface — the painted area lights up. Tune Radius, Opacity, Falloff Soft in the Brush Shape section to taste.
Create the network
Click Create Network. The HDA cooks; assets scatter; the bottom-right counter updates to N asset(s) loaded. If you don't like the result, tweak Density / Min Spacing / Min Distance and hit Recache Strokes.