PBR (Physically Based Rendering)

PBR (Physically Based Rendering)

PBR (Physically Based Rendering)

PBR, or Physically Based Rendering, is a method used in computer graphics to render images that closely mimic the way light behaves in the real world. This technique aims to simulate the physical properties of materials such as metal, glass, plastic, and skin, allowing for more realistic and accurate depiction of objects in a virtual environment.

One of the key principles of PBR is energy conservation, which ensures that the total amount of light reflected by a surface is equal to the amount of light that hits it. This helps to create more natural looking lighting and shading effects in a 3D scene.

Another important aspect of PBR is the use of measured data to define the properties of materials. This includes information such as the reflectance, roughness, and index of refraction of a material, which are used to calculate how light interacts with the surface. By using real-world data, PBR can achieve a high level of accuracy in rendering materials.

Overall, PBR has become a popular technique in the field of computer graphics due to its ability to create realistic and visually stunning images. It is commonly used in video games, movies, and architectural visualization to bring virtual worlds to life with lifelike materials and lighting effects.

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