How to approach 2D shadows with multiple lights? : r/opengl
2D lights and shadows — Godot Engine (stable) dokumentaatio suomeksi
How to approach 2D lighting? : r/opengl
2D lighting in OpenGL with GLSL, how? - Graphics and GPU Programming - GameDev.net
GitHub - eXpl0it3r/LTBL: Let There Be Light - A 2D Dynamic soft shadows system written using SFML and OpenGL directly. Uses quad trees for accelerated region queries.
Simple 2D Lighting - Questions - Defold game engine forum