Normal Maps and PBR

Normal mapping fakes fine relief, such as an embossed title, by bending the normal per pixel instead of adding triangles. Physically based rendering (PBR) replaces hand-tuned shininess with physical parameters that behave consistently under any light. glTF 2.0, Three.js 30,815 and Babylon.js 89,603 all build on both.

Subsections

• Normal Maps
• Tangent Space
• Sampling Normal Maps
• Metallic-Roughness
• Cook-Torrance BRDF
• Image-Based Lighting
• PBR Texture Sets
• PBR vs Phong
• PBR Authoring Tools
• Cover Embossing