Physically Based Rendering (PBR)

Physically Based Rendering (PBR) is a computer graphics approach that simulates how light interacts with materials in a physically accurate way, using real-world properties like albedo, roughness, and metallicness. It provides consistent and realistic material appearance across different lighting conditions and environments, making it a standard in modern 3D rendering for games, films, and simulations.

Also known as: PBR Materials, Physically Based Shading, PBS, PBR Shaders, Physically Based Rendering Materials

Why learn Physically Based Rendering (PBR)?

Developers should learn PBR when creating 3D applications, games, or visualizations that require realistic material rendering, as it ensures materials look correct under various lighting without manual tweaking. It is essential for game engines like Unity and Unreal Engine, architectural visualization, and product design, where accurate material representation enhances immersion and quality.

Learning Resources

• tutorial: LearnOpenGL - PBR
• docs: Unity Manual - Physically Based Shading
• docs: Unreal Engine Documentation - Physically Based Materials
• book: Physically Based Rendering: From Theory to Implementation (Book)
• video: Blender Guru - PBR Explained