What is Backface Culling?

Backface culling is a technique used to improve performance by reducing the number of polygons that need to be rendered. Polygons that are facing away from the viewer are not drawn, which can greatly reduce the complexity of the scene. This can be especially useful when rendering scenes with a lot of small details, as it can improve performance without sacrificing too much visual quality.

Backface culling is enabled by default in most 3D rendering software, but there may be some cases where it needs to be turned off. For example, if you are creating a model of a sphere and want to show the inside of the sphere, backface culling will need to be disabled so that the polygons on the back side of the sphere are drawn.

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