3dengine

A 3D engine written in C++ with OpenGL, built around its own editor rather than being a bare rendering library. It has a scene/object model, a camera, mesh/model loading (via Assimp), shaders, and a framebuffer-based viewport, plus embedded Lua scripting (via sol2) for driving object behavior at runtime.

Features

• OpenGL 3.3 renderer: shader, mesh, model (Assimp-based import), camera, and framebuffer systems, with a scene graph of objects
• Editor UI (Dear ImGui): menu bar, console window (captures engine/script output), scene hierarchy, viewport rendered into the framebuffer texture, and a script viewer with a syntax-highlighted text editor
• Project system: create or open a project (.3dproj) from a startup screen; scenes (including camera and object state) are serialized to/from JSON (.3dscene)
• Embedded Lua scripting: scripts can be attached to objects and get init()/update() lifecycle hooks, an Object API (position, rotation, scale, name) and a vec3 type exposed to Lua, and print() output is captured into the in-editor console
• Diagnostics window (currently a placeholder)

Status

Mostly a learning project — built on and off in spare time to explore engine architecture, OpenGL and scripting integration. Work in progress - expect rough edges and missing features (e.g. the diagnostics window and some menu items are stubs).

Build

Required to build:

• GPU that supports OpenGL 3.3
• cmake (>= 3.10)

To build and run:

Linux/MacOS:

• ./build.sh

Windows:

• build.bat

The compiled executable will be in the build directory.

If you're using Visual Studio Code, you have to configure include paths in c_cpp_properties.json as well. (for intellisense to work correctly, doesn't affect compilation)