Docs/Terrain

Grass System

Render dense grass fields efficiently.

13 min read Advanced Updated 2026-07-01 v2.0 ~38 min to complete

Introduction

Render dense grass fields efficiently. This page provides a complete guide to grass system in Appley, covering everything from setup to advanced techniques.

Terrain is a core area of Appley. Understanding grass system will help you build better games and use the platform more effectively. This documentation is designed for advanced level users.

Requirements

Before working with grass system, ensure you have the following:

An Appley project with a 3D scene
Terrain tools enabled in Creator Studio
Heightmap data (optional, for import)
Texture files for terrain layers

Estimated Completion Time

This guide takes approximately 38 minutes to complete. The estimated reading time is 13 minutes. Difficulty level: Advanced.

Step-by-Step Guide

Follow these steps to work with grass system in your Appley project:

Open Terrain Tools

In Creator Studio, switch to the Terrain tab to access terrain editing tools.

Create or import terrain

Create a new terrain or import a heightmap for grass system.

Sculpt the terrain

Use the raise, lower, and smooth brushes to shape the terrain surface.

Paint textures

Apply texture layers (grass, dirt, rock) to the terrain using the paint brush.

Add vegetation

Scatter trees, grass, and props on the terrain. Adjust density.

FluxScript Example

Below is an Appley Scripting (Flux Scripting) code example demonstrating grass system:

Grass System — Appley Scripting

// Terrain — Grass System
on start {
  terrain.setHeight(50, 50, 25.0)
  terrain.setHeight(51, 50, 24.5)
  terrain.paintTexture(50, 50, "grass", 5.0)
  terrain.scatter("tree_pine", 50, 50, 10, 5.0)
  terrain.rebuild()
}

Node Script Example

The same logic can be implemented using Node Scripting. Here is the equivalent node graph:

Grass System — Node Graph

[On Start] ──► [Set Height: (50,50) = 25]
         ──► [Paint Texture: "grass"]
         ──► [Scatter: "tree_pine", count=10]
         ──► [Rebuild Terrain]

Interchangeable Systems

FluxScript and Node Scripting compile to the same runtime. You can mix both in a single project — use whichever is best for each task.