Contributed to the godotengine/godot repository by implementing a GridMap Bresenham Line Drawing feature, enabling users to paint and erase lines between two points in 3D grid space within the editor. This addition streamlined 3D GridMap content creation by reducing manual steps and improving modeling precision. The work involved designing and integrating the Bresenham line algorithm into the existing GridMap drawing pipeline, focusing on editor usability and workflow efficiency. Developed in C++ with an emphasis on editor tools and game development practices, the feature was delivered as a clear, reviewable commit, demonstrating effective version-controlled development in a large-scale engine project.