Today, I focused on the debug rendering subsystem, which is crucial for visualizing various components of the engine during development. This work will facilitate easier debugging of spatial relationships, frustum culling, and occlusion handling.

debugdraw: Established the foundational structure for the debug drawing system, enabling visualization of shapes and paths in the rendering pipeline.debugdraw_helpers: Completed the implementation of helper functions to streamline the rendering of basic shapes (lines, spheres, etc.), improving the clarity of debug visuals.debugdraw_path: Added functionality to visualize paths, which aids in debugging movement and AI-related features.debugdraw_frustum: Implemented frustum visualization, allowing for the assessment of what is currently visible in the scene, thereby enhancing frustum culling debugging.frustum_cull: Integrated frustum culling logic to improve performance by eliminating objects outside the view, with bounds checks refined for edge cases.sphere_cull: Developed a sphere-based culling mechanism to efficiently determine visibility of spherical objects, optimizing rendering performance.cull_occlusion_run: Fixed a bounds check issue within the occlusion culling routine, ensuring accurate visibility determinations.chunk_dist_sq: Implemented a distance-squared function for chunks, which will be useful in sorting and rendering optimization.
The debug rendering system is now significantly more functional, laying the groundwork for more complex visualizations. The next step will involve integrating these debug features with the main rendering loop to ensure they can be toggled during runtime for effective debugging.