This is a comprehensive White Paper on Physically Based Rendering (PBR) designed for technical artists, 3D developers, and rendering engineers. It systematically organizes the core knowledge体系 of PBR into five main sections covering an overview of the field, foundational optical principles and rendering theory, the Disney Principled BRDF and BSDF models, Normal Distribution Functions (NDF), and Geometry Function detailed analysis. The resource serves as both a theoretical reference and a practical guide for implementing realistic material shading in real-time graphics environments. The collection includes high-resolution knowledge architecture diagrams that visualize complex relationships between physical theories and rendering pipelines, offering a clear map for learning and implementation. Additionally, it provides a downloadable PDF quick reference chart for common material base reflectivity (F0) values, facilitating faster workflow for texture creation and shader setup. This documentation is particularl ...