feat: move editor to project / add post processing etc

Readme.md

@@ -12,6 +12,9 @@ Destrum is a C++20 Vulkan rendering/game-engine playground. It contains the core
 * Skeletal animation support
 * Skybox/cubemap rendering
 * Asset cooking pipeline for engine and game assets
+* Editor library: docked viewport, play/pause/stop, undo/redo, click to select, gizmos, asset browser
+* Stable asset ids (`.meta` files) and material files (`.dmat`)
+* HDR rendering with exposure and tonemapping (ACES, Khronos PBR Neutral)
 * CMake-based build setup with third-party dependencies as submodules
 
 ## Repository layout
@@ -24,6 +27,8 @@ Destrum is a C++20 Vulkan rendering/game-engine playground. It contains the core
 │   ├── src/        # Engine implementation
 │   ├── assets_src/ # Source engine assets
 │   └── third_party/# Vendored/submodule dependencies
+├── editor/         # Editor library (destrum::editor), attached to a game at startup
+├── docs/           # How the engine pieces work
 ├── lightkeeper/    # Demo/game executable using Destrum
 │   ├── include/
 │   ├── src/
@@ -119,7 +124,7 @@ cmake --install build --config Release
 
 ## Demo app
 
-`lightkeeper` is the current demo application. It creates an SDL window, initializes the Destrum app, loads assets, sets up a scene, renders meshes, skyboxes, and a skinned animated character.
+`lightkeeper` is the current demo application. It loads its level from `lightkeeper/assets_src/scenes/main.scene` and starts in the editor. Press F5 to play, or run `lightkeeper --game` to skip the editor. See `docs/Editor.md`.
 
 ## Development notes
 
@@ -134,9 +139,11 @@ destrum::destrum
 Game/demo targets can link against it:
 
 ```cmake
-target_link_libraries(my_game PRIVATE destrum::destrum)
+target_link_libraries(my_game PRIVATE destrum::destrum destrum::editor)
 ```
 
+The editor is optional, a game without it links only `destrum::destrum`.
+
 ## License
 
 Do what you want dawgs :pray: