Alpha compositing

（重定向自Alpha channels）

This image's alpha channel falls off to zero at its base.

En esta rueda de color, el canal alfa disminuye progresivamente en los píxeles más cercanos al centro.

Imagen con canal alfa sobre un fondo cuadriculado

In computer graphics, alpha compositing is the process of combining an image with a background to create the appearance of partial or full transparency. It is often useful to render image elements in separate passes, and then combine the resulting multiple 2D images into a single, final image called the composite. For example, compositing is used extensively when combining computer-rendered image elements with live footage.

单词	Alpha channels
释义	Alpha channels 英语百科 Alpha compositing （重定向自Alpha channels） In computer graphics, alpha compositing is the process of combining an image with a background to create the appearance of partial or full transparency. It is often useful to render image elements in separate passes, and then combine the resulting multiple 2D images into a single, final image called the composite. For example, compositing is used extensively when combining computer-rendered image elements with live footage.
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