Normal Blend Mode
This is the standard blend mode which uses the top layer alone, without mixing its colors with the layer beneath it.
Where a is the value of a color channel in the underlying layer, and b is that of the corresponding channel of the upper layer. The result is most typically merged into the bottom layer using "simple" (b over a) alpha compositing, but other Porter-Duff operations are possible. The compositing step results in the top layer's shape, as defined by its alpha channel, appearing over the bottom layer.
Read more about this topic: Blend Modes
Famous quotes containing the words normal, blend and/or mode:
“You have promise, Mlle. Dubois, but you must choose between an operatic career and what is usually called “a normal life.” Though why it is so called is beyond me.”
—Eric Taylor, Leroux, and Arthur Lubin. M. Villeneuve (Frank Puglia)
“Living by basic good-mothering guidelines enables a mom to blend the responsibilities of parenthood with its joys; to know when to stand her ground and when to be flexible; and to absorb the lessons of the parenting gurus while also trusting her inner voice when it reasons that another cookie isn’t worth fighting over, or that her child won’t suffer irreparable trauma if, once in a while, Mom puts her own needs first.”
—Sue Woodman (20th century)
“There are a thousand hacking at the branches of evil to one who is striking at the root, and it may be that he who bestows the largest amount of time and money on the needy is doing the most by his mode of life to produce that misery which he strives in vain to relieve.”
—Henry David Thoreau (1817–1862)