• C++23 compatible compiler (GCC 14+ or Clang 17+)
• CUDA 12.8+ for GPU development
• Apply clang-format for code style

LichtFeld-Studio/
├── src/
│   ├── core/          # Foundation (data structures, utilities)
│   ├── geometry/      # Geometric operations
│   ├── loader/        # Dataset loading (COLMAP, PLY, Blender)
│   ├── training/      # Training pipeline and strategies
│   ├── rendering/     # CUDA/OpenGL rendering
│   └── visualizer/    # Interactive GUI
├── gsplat/            # Optimized rasterization backend
├── fastgs/            # Fast Gaussian splatting kernels
└── parameter/         # JSON configuration files

1. Create tool files: src/visualizer/tools/your_tool.hpp and .cpp

   • Inherit from ToolBase, implement: getName(), getDescription(), renderUI()

2. Register tool: In tool_manager.cpp add to registerBuiltinTools():

   registry_.registerTool<YourTool>();

3. Update build: In CMakeLists.txt add:

   tools/your_tool.cpp

4. Build & run - Your tool appears automatically in the Tools panel!

Example minimal tool: Copy crop_box_tool.hpp/cpp, rename class, change getName() to return your tool name.