Blend Modes
Basics
Vectorian Giotto fully supports object blending, introduced in Flash 8. Blending is a process of creating composite images, calculating new pixel colors from colors of interacting pixels of overlapping movie clips.
Modes
Following blend modes are available in Giotto :
Darken
Darken blend mode replaces pixels lighter than blend color with composite darkened color.
Multiply
This blend mode multiplies the pixel color of underlying object with the blend color. The result is a darker composite color.
Lighten
Lighten blend mode replaces pixels darker than blend color with composite color.
Screen
Screen multiplies the inverse of the blend pixel color by the pixel color of underlying object.
Overlay
Overlay blend mode is a combination of multiply and screen modes, depending on the interacting colors. It results in a darker composite color.
Hard Light
This blend mode is a combination of multiply and screen modes, depending on the interacting colors. It results in a lighter composite color.
Add
The two blend colors are added together.
Subtract
The two blend colors are subtracted.
Difference
Difference is similar to subtract: the color with lesser brightness is subtracted from the color with greater brightness.
Invert
Area beneath the blending shape is inverted.