alexanderkub/coppercowengine ? reverse-engineered prompt

Build me a WIP 3D engine for rendering shiny copper cows, with a small editor so I can create a project, import assets, and preview them.

I want it to use DirectX 11 and support the main rendering features already hinted at here, like PBR lighting, HDR with tonemapping, bloom, shadow maps, deferred rendering, and a forward path if possible. It should also have an asset manager that can pack raw assets into a faster binary format, import HDR environment maps, and generate the cube maps and BRDF lookup data needed for image based lighting.

Please keep the code organized into the existing engine, rendering, ECS, job system, scripting, and editor style projects, and make the app run with a simple demo scene that shows the lighting working. If anything is unclear, look up current docs online if you need to, then wire up the pieces in a clean, working way.