zhangjiangen / block-based-terrain-lod

Block-based terrain LoD with simple example program.

Project

Simple implementation of loading heightmaps and generating on-the-fly LoD database to efficiently render terrain with different level of detail depending on distance to camera.

Simple doesnt mean its slow. Though building might be faster, to render terrain it uses single OpenGL call glMultiDrawElements() with previously builded data in both VBO and IBO. It also allows for good customization with easy way to change number of levels, size of blocks and how levels for each block is determined.

Heart of the project are files Terrain.h and Terrain.cpp that implements algorithm. Rest is example Application structure with window and context creation.

Demo

Controls

Mouse - look with FlyCamera / FreeCamera
WSAD - move forward/backward/left/right
space - move up
lctrl - move down
lshift - hold to move much faster

Preview

Compiling

Compiler and software

Tested with Code::Blocks 13.12 with MinGW compiler (GCC) (project file for Code::Blocks is included). Tested on platforms: Windows (Windows 7 x64).

Dependencies

1. GLEW (tested with version 1.10.0)
2. GLFW3 (tested with version 3.0.4)
3. GLM (tested with 0.9.5.4, headers only)

Builded libs are included in demo example, however headers for them are not.

License

Feel free to do whatever you want with it, though it would be nice to mention me if my code helps you somehow.