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Utilizing realistic materials and lighting models to simulate the physical properties of surfaces, PBR (Physically Based Rendering) enables assets and tools to achieve consistent, lifelike appearance across different environments and lighting conditions. Commonly employing texture maps such as albedo, normal, metallic, and roughness, this approach aids in accurately depicting how light interacts with various materials in 3D projects.

Programs that typically run in the graphics pipeline directly on the GPU to apply special effects to graphics