Shadow Mapping

Shadow Mapping

Shadow Mapping

Shadow mapping is a technique used in computer graphics to simulate the effects of shadows cast by objects in a three-dimensional scene. It is commonly used in video games, virtual reality applications, and other forms of interactive media to create a more realistic and immersive environment for the viewer.

Shadow mapping works by rendering the scene from the perspective of a light source, such as a sun or a lamp, and then storing the depth information of the objects in the scene from this viewpoint. This depth information is then used to determine which parts of the scene are in shadow and which parts are illuminated by the light source. By comparing the depth values of the objects in the scene with the depth values of the shadow map, the renderer can accurately determine where shadows should be cast.

One of the main advantages of shadow mapping is its efficiency, as it allows for real-time rendering of dynamic shadows in complex scenes. However, shadow mapping can also be prone to certain artifacts, such as aliasing and shadow acne, which can be mitigated through the use of techniques like shadow map filtering and bias adjustment.

Overall, shadow mapping is a powerful tool in the realm of computer graphics, allowing for the creation of more realistic and visually appealing virtual environments.

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