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:
“Marriages will survive despite enormous strains. A lover will ask, “Is he happy? Can he still love her?” They don’t realise that’s not the point, it’s all the normal things they do together—going to the supermarket, choosing wallpaper, doing things with the children.”
—Carol Clewlow (b. 1947)
“Resignedly beneath the sky
The melancholy waters lie.
So blend the turrets and shadows there
That all seem pendulous in air,
While from a proud tower in the town
Death looks gigantically down.”
—Edgar Allan Poe (1809–1849)
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—Charles Horton Cooley (1864–1929)