ConceptAlpha Channel

Alpha Channel

A channel in PNG images that controls the transparency of each pixel, with values ranging from 0 to 255. It is used to represent semi-transparent edges and soft light effects, and a game engine's blending of semi-transparent pixels depends on its precision.

Timeline (last 90 days)

Oct 14

PNG transparency is controlled by the Alpha channel, and each pixel has, in addition to RGB, an Alpha value from 0–255.

Unverified50%

Oct 14

When blending semi-transparent pixels, the game engine computes by the formula result = foreground × Alpha + background × (1 − Alpha).

Unverified50%

All Facts (2)

Unverified

PNG transparency is controlled by the Alpha channel, and each pixel has, in addition to RGB, an Alpha value from 0–255.

50%Unverified

When blending semi-transparent pixels, the game engine computes by the formula result = foreground × Alpha + background × (1 − Alpha).

50%

Source Articles

AI Can Write Game Code, So Why Are Character Animation Sprite Sheets Still So Hard?Oct 14