Issue link: https://nbm.uberflip.com/i/1488543
G R A P H I C S - P R O. C O M J A N U A R Y 2 0 2 3 • G R A P H I C S P R O 8 7 Algorithms How does the software perform this task? By applying an algorithm — finite sequential mathematical instructions, that mix and diminish the colors of the topmost content with that which resides underneath it in the stack. In pixel-based images a grid of pixels each with a specific RGB value config- ure the content. When the algorithm is applied, it assesses the values of the super- imposed pixels and adjusts them accord- ingly to alter the color to the percentage indicated by the opacity or transparency slider. (Fig. 3) In the case of vector soft- ware such as Illustrator, the algorithm is applied to the entire object which resides on a "sublayer." (Fig. 4) Transparency vs opacity ese two terms though opposites, are inter-connected within the spectrum of visibility. 0% opacity indicates that the value is 100% transparent or totally invis- ible. 0% transparency indicates full opac- ity. Any value in between, for example 70% opacity, indicates a corresponding value of 30% transparency, 80% opacity indicates 20% transparency and so on. e reason I mention this is that depend- ing on the software you are using you may encounter either or both terms in which case, be aware of which direction you are dragging the slider. Fig. 2: Unfortunately for nor- mal humans X-ray vision is not a power that we have … or do we? Fig. 3: When the algorithm is applied, it assesses the values of the superimposed pixels and adjusts them accordingly to alter the color to the percentage indicated by the opacity or transparency slider. Fig. 4: In the case of vector software such as Illustrator, the algorithm is applied to the entire object which resides on a "sublayer."