TODO

Shadow Mapping - Border clamp : https://learnopengl.com/Advanced-Lighting/Shadows/Shadow-Mapping
Shadow Mapping - Use Ortho matrix for directional (the sun) light
UI - Fix scale on resize
OpenGL - Cache uniform locations
Hide backface for 2D sprites (optional, since some sprites could rotate?)
Test frustum culling, enable back
Add Option for SSBO to be readonly

Interesting / Nice To Have / Optimizations

Animation Blending
OpenGL - glMapBuffer persistent -> this allows multithreading buffer update
OpenGL - Texture Arrays
OpenGL - Sparse Textures
OpenGL - DSA - Direct State Access
OpenGL - Compress textures? Why/When?
OpenGL - Renderbuffers for readonly framebuffers
A display list stores a group of OpenGL commands so that they can be used repeatedly just by calling the display list
Use Octree to calculate visibility? (frustum culling with octree?). Don't put model matrix in UBO if occluded.
Threads - split render and logic in different threads
- Scripting Engine - Put scripting engine in another thread???
- Tasks system - threaded?
Implement "next frame" timers

Components live in Pools/Comp.Managers
Inheritance is a 1st class citizen in OOP, composition is a 1st class citizen in ECS.
OOP encourages encapsulation of data, ECS encourages exposed POD (plain old data) objects.
OOP colocates data with behavior, ECS separates data from behavior.
OOP Object instances are of a single static type, ECS entities can have multiple, dynamically changing components
from here
- No inheritance/virtual functions allowed since jumping to vtable mem address generate cache misses
- That should go for systems
- QuadTree could live in a packed array, better cache performance