Lutsip LS3D Editor

A custom level editor for Hidden & Dangerous 2, powered by my own C# OpenGL-based 3D engine, developed as part of my high school capstone project.

The project required an in-depth analysis and partial reimplementation of the original game engine, as no official modding tools or documentation were available. Over the course of a year, I reverse engineered most relevant file formats and built an editor for creating and complete editing of game levels.

While some tools already existed, they lacked a 3D view and supported only a limited subset of features, making it effectively impossible to create new levels or significantly modify existing ones. The editor significantly improves the modding workflow, allowing creators to design levels in a more intuitive and efficient way. Its release marked a new era for Hidden & Dangerous 2 modding.

Technical insight

Working on Lutsip provided practical experience with real-time rendering techniques used in older game engines, such as the LS3D Engine.

The project involved implementing and understanding core concepts such as:

• Scene graph
• Gouraud/Phong shading
• View frustum culling
• Sector/portal/occluder occlusion culling
• Uniform spatial grids for collision detection
• Lightmapping
• Morph target animation

Many modern rendering systems still rely on these techniques, often in evolved forms.

Key features

Tech stack