Global Illumination

Global Illumination

Global Illumination

Global Illumination is a rendering technique used in computer graphics to simulate the way light interacts with surfaces in a scene. It takes into account the complex interplay of light bouncing off multiple surfaces, creating more realistic and natural lighting effects.

Global Illumination algorithms calculate the indirect lighting in a scene, which includes light that has been reflected, refracted, or scattered by surfaces before reaching the camera. This helps to accurately capture the way light behaves in the real world, leading to more visually appealing and immersive images.

There are several types of Global Illumination techniques, including Ray Tracing, Path Tracing, and Radiosity. Each method has its strengths and weaknesses, but they all aim to improve the overall lighting quality and realism of rendered images.

Global Illumination is widely used in industries such as animation, architecture, and gaming to create lifelike visuals that closely resemble reality. By accurately simulating the way light interacts with surfaces, Global Illumination helps to elevate the quality of computer-generated imagery and enhance the viewer's experience.

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