OpenGL Procedural Terrain Generator

Simple procedural terrain generator written in C++ using OpenGL. The application generates a grid of vertices of certain size that are displaced by procedurally generated height map of accumulated Perlin noise values.

Features

Version 1.1

• Height-based terrain - grid of displaced vertices
• Procedural height map - Fractal noise of Perlin noise
• Cube map - sky box arround the terrain
• FPS camera - allows to fly-over the terrain
• Shading based on Phong shading model, along with height-based blending
  • blending between height regions that are textured and / or single colored
• Interactive GUI - set various terrain parameters, add / remove regions
• Falloff map - allows generation of islands
• Profiling - visualizes execution time of certain functions

Regions config window:

Planned

• Optimization: CPU parallelization, GPU off-load
• LOD
• Physically-based shading
• Water
• Atmospheric model
• Save to a file, load from a file

How to compile

Tested on Ubuntu 20.04, using GCC 9.4.0 x86-64.

Requirements:

• C++17 complier
• min. CMake 3.16
• min. OpenGL 4.5 compatible GPU

In root directory of this project:

• mkdir build && cd build
• cmake ..
• make
• ./terrain

Used libraries

• SGL - custom simple graphics library

Release notes

• Version 1.1:

  • refactored, implemented using custom SGL library

• Version 1.0:

  • Interactive GUI for tweaking your terrain
  • FPS camera
  • Skybox
  • Procedural Mesh
  • Accumulated Perlin Noise
  • Texturing
  • Falloff map
  • Height-based Blending
  • Shading using Phong model