Introduction to Shaders - Lecture 18

Explore the fundamentals of shader programming and GLSL (OpenGL Shading Language) in this comprehensive game programming lecture. Begin with an introduction to what shaders are and their role in modern graphics programming, then dive into practical tutorials using The Book of Shaders and Shader Toy platforms. Learn essential concepts including coordinate systems and resolution handling, defining output colors, and working with textures. Master practical techniques such as converting images to grayscale, implementing image masking, and creating time-based visual effects. Discover how to implement a green screen effect, draw geometric shapes like circles, and create atmospheric lighting with spotlight effects. Examine complex shader examples to understand advanced techniques, then learn how to integrate shaders into game development using the SFML graphics library. The lecture concludes with an overview of shader packs and additional examples to inspire further exploration. This session provides both theoretical understanding and hands-on coding experience essential for implementing visual effects in game engines.