Soft Trace

OpenGL application displaying a textured heightmap. An nPoints sized triangle strip is generated at runtime. For each vertex, its tangents and UVs are computed. The information is fed into a basic graphics pipeline (vert + frag) that displaces the vertices and subsequently Blinn-Phong shades the resulting fragments. Three terrain textures are mixed according to height. A single directional light illuminates the scene.

Project Structure

heightmap/
├── src/                 # Source code, including shaders
├── external/            # Bundled libraries' source code (GLFW, GLEW, GLM)
├── assets/              # Static assets (.bmp files)
├── _build_/             # Generated build files
├── lib/                 # Generated lib files
├── bin/                 # Generated executable files
├── premake5.lua         # Premake 5 config
├── premake5             # Premake 5 executable (Linux)
├── premake5.exe         # Premake 5 executable (Windows)
└── README.md            # Project README

Environment - Linux

The following packages are required:

libxcursor-dev
libx11-dev
libxrandr-dev
libxinerama-dev
libxi-dev

Build

./premake5 gmake2
make

Run

bin/main-debug-<arch>-<compiler>

Example:

bin/main-debug-x64-gcc

Technologies

• Premake: 5
• C++: >= C++17
• OpenGL: >= 4.2
• GLFW: 3.4.0
• GLEW: 1.13.0
• GLM: 0.9.7.1

Showcase