Calysto Smart Scatter – PCG Scattering – Unreal Engine
Calysto Smart Scatter – PCG Scattering – Unreal Engine
Overview
Calysto Smart Scatter is a powerful PCG‑native scattering tool for Unreal Engine that replaces manual placement with customizable spawning rules (angle, noise, density etc…). All with non‑destructive workflows that play perfectly with World Partition and your existing biomes.
Works for: realistic, stylized, and low‑poly environments.
Why Smart Scatter?
Speed: Select if you want to spawn your meshes on the CPU or GPU.
Control: Rules for slope, height, angle bands (roof/wall/floor), and no spawning zone/tag.
Quality: Natural‑looking cluster noise, per‑group scale/rotation, and normal‑aligned placement with “force look‑up” options.
Scalability: Non‑destructive PCG graphs + data‑driven presets let you iterate without re‑authoring content.
Compatible with all the other Calysto tools: Calysto World, Calysto Dungeon, and Calysto Village.
See Smart Scatter and Calysto World working together here.
Key Features
PCG‑First Workflow
Build with PCG graphs and modular kernels. Non‑destructive, order‑independent, and easy to refactor.
Smart Cluster System
Procedural patch/cluster masks with thresholds for natural variation.
Surface‑Aware Placement
Align to normals with multiple rotation modes (AlignToNormal, RandomYaw, WorldUp) and a Force Look‑Up option for attached meshes.
Angle Bands & Slope Filters
Artist‑friendly world‑space controls for what spawns on floors, walls, and ceilings (−180° to 180° or −90° to 90° modes).
Row/Spline Generators
Auto‑generate even rows (farm/crop style) inside a volume with parity offsets (left/right staggering) and density controls.
Data‑Driven Presets
Define Groups (flowers, moss, rocks, grass, etc.) with per‑group scale ranges, density, slope max, and noise settings.
Amazing support
Be part of a growing Discord community with more than a thousand users and quick support for all my tools.
Include some realistic nanite vegetation
Contain a sample of Calysto World 2.0’s nanite vegetation collection.
Plugin required
Procedural Content Generation Framework (PCG)
Procedural Content Generation Framework (PCG) Geometry Script Interlop
Scriptable Tools Editor Mode
Scriptable Tools Framework
PCG is heavily used and evolves a lot between Unreal Engine updates. For this reason, using the latest version of Unreal is always recommended to maximize the benefits of Calysto Smart Scatter.
Supported Unreal Engine Versions
5.6 – 5.7