# particles 1.https://github.com/city41/particle.js/blob/5ec353061cceffce5775f3de595e471ddb15ad0d/public/javascripts/particlesystem/PredefinedSystems.js 3. http://buildnewgames.com/particle-systems/ # shaders 1. https://github.com/TheCherno/OneHourParticleSystem/blob/master/OpenGL-Examples/assets/shaders/test.vert.glsl 2. https://learnopengl.com/Advanced-OpenGL/Geometry-Shader 3. https://github.com/raysan5/raylib/blob/master/examples/shaders/resources/shaders/glsl330/base.fs