Pena Contents
Introduction
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Texture Pane
Effects Pane
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Intelligent Canvas
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The Effects Library
Effects Introduction
Color Source Effects
Procedural Source Effects
Color Filter Effects
  • Color Filter Introduction
  • Average
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  • Desaturate
  • Exchange Channels
  • Invert
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  • Saturation
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  • Tint (Modify HSB)
  • Transparency (Alpha)
  • Spatial Filter Effects
    Math and Logic Effects
    Special Effects
     
    Artists Gallery
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    Pena Support
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      Effect:Transparency (Alpha)
      Category:Color Filter
      Speed:Fast

      Description: The Transparency (Alpha) Effect lets you set the Alpha value for Color 1 and/or Color 2.

       
      Options: The Transparency (Alpha) Effect has the following Options Pane:

      Color 1 Alpha:This value sets the transparency (alpha channel) for Color 1. The value zero is completely transparent. The value 1.0 is completely opaque. Values between zero and 1.0 are varying degrees of transparency. Note that this only affects Color 1 if you have the Output Color 1 option set to anything but Ignore.
      Color 2 Alpha:This value sets the transparency (alpha channel) for Color 2. The value zero is completely transparent. The value 1.0 is completely opaque. Values between zero and 1.0 are varying degrees of transparency. Note that this only affects Color 2 if you have the Output Color 2 option set to anything but Ignore.
      Output Color 1:By default this is set to REPLACE which means that the set color will be output to Color 1. You can change this as explained in Options Pane Color Mixers.
      Output Color 2:By default this is set to IGNORE which means that the Color 2 will be ignored (the original Color 2 will be kept). You can change this as explained in Options Pane Color Mixers.

      Example: To show the Transparency (Alpha) Effect we will take our Arches National Park image and paint it onto the Canvas. In Slot 1 we load our Sailboat Jazz Photo using the Texture Effect with default values.

      In Slot 2 we put our Transparency (Alpha) Effect.

      The next five images show a transition, changing the Color 1 Alpha value each time:

      1. 0.0, which is 0%. This is 100% the Canvas (Arches) and 0% the Sailboat
      2. 0.25, which is 25%. This is 75% the Canvas (Arches) and 25% the Sailboat
      3. 0.50, which is 50%. This is 50% the Canvas (Arches) and 50% the Sailboat
      4. 0.75, which is 75%. This is 25% the Canvas (Arches) and 75% the Sailboat
      5. 1.00, which is 100%. This is 0% the Canvas (Arches) and 100% the Sailboat

       

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