Pena Contents
Introduction
Control Pane
Brush Pane
Texture Pane
Effects Pane
Color Picker
Save/Load Pane
Selection Pane
Preferences Pane
  • Preferences Pane Introduction
  • Anti-alias Control
  • Left Handed
  • Pane auto-close
  • Reset Clock on Paint
  • Draw Surface First
  • Wacom Bluetooth Stylus
  • Jot Bluetooth Stylus
  • Reset Pena
  • View Help
  • Pena Version
  •  
    Intelligent Canvas
    Wacom Bluetooth Stylus
    Jot Bluetooth Stylus
     
    The Effects Library
    Effects Introduction
    Color Source Effects
    Procedural Source Effects
    Color Filter Effects
    Spatial Filter Effects
    Math and Logic Effects
    Special Effects
     
    Artists Gallery
    The Artist Gallery
     
    Pena Support
    Troubleshooting

       

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      The Preferences Pane

      Preferences Pane Introduction


      The Preferences Pane gives controls that govern the overall usage of Pena. Most of these settings are not saved as part of Paintings, but rather are saved in a preferences area on the iPad.

      This next section outlines the basic functionality of the Preference Pane, or you can view the video tutorial Pena Tutorial #12 - Using the Preferences Pane.

      To dismiss the Preferences Pane, tap the Preferences Pane icon again, or most any other icon on the Control Pane.

       

      Anti-alias Control (smooth jaggies)


      At the top of the Preferences Pane is the choice Anti-alias (smooth jaggies).

      Jaggies are a fact of life when you are painting on a grid. Each square (pixel) on the Canvas is a certain size, and can only be a single color. Since there are a fixed number of pixels on the Canvas, all lines, circles, etc, are approximations, and are thus imperfect.

      This imperfection exhibits itself as a jagged edge on lines, the outside of circles, text, and other objects.

      The removal of the jaggies is known as anti-aliasing (the jaggies themselves is known as aliasing).

      If you have ever watched a TV show of a car on a highway, and noticed that the spokes of the hubcaps appear to go backwards, that is a form of aliasing. The speed of the spokes against the frame-rate of the TV causes a the appearance of jaggies.

      The anti-aliasing button controls whether or not jaggies are removed from your painting as you paint.

      By default, the anti-aliasing button is set to a green check mark, which means that most jaggies will be removed from the image as you paint.

      If you tap the green check mark, it will switch to a red X, which turns off anti-aliasing. This will cause subsequent painting to be more jaggy on edges. To turn anti-aliasing on again, tap the red X to turn it back to a green check mark. Only new things you paint will be anti-aliased.

      Here is an example of jaggy (aliased) versus smoother (anti-aliased) line:

      The top text and line is jaggy (aliased) and the bottom line and text is anti-aliased.

      Why would you ever turn anti-aliasing off? First, the effect of anti-aliasing is to add a very slight blur to the image. There may be rare times you don't want that.

      Second, painting with anti-aliasing on is just a bit slower than with it off. For really slow effects there may be an advantages to having it off.

      In general though, you will produce better looking artwork when Anti-Aliasing is turned on.

       

      Left Handed


      The Left Handed choice defaults to off, a red X. When set to a red X Pena behaves as if the user is using their right hand to paint.

      If you tap the red X and turn it to a green check mark, Pena behaves as if the user is using their left hand to paint.

      This only affects a few controls in Pena. One example is the Eyedropper function in the Color Picker. For right handed setting, the eyedropper will be positioned to the upper left of the users finger. For left handed setting, the eyedropper will be positioned to the upper right of the users finger.

      Since Pena has Offset Brushes built in, you can also make a brush appear anywhere offset from the finger when painting.

       

      Pane auto-close


      The Pane Auto-Close choice defaults to off, a red X.

      Normally, when you go to paint on the Canvas, Pena hides all the open Panes. When you are done painting, Pena re-displays all the open Panes (except for Option Panes and the Color Picker).

      This button changes that behavior.

      By turning Pane Auto-close to a green check mark, when you are finished painting only the Control Pane will reappear. Any other open pane will not reopen.

      This comes down to a matter of preference. It may be more time saving for the originally open panes to reopen. Others may find having the panes always open takes too much visual space.

       

      Reset Clock on Paint


      The Brush Pane allows you to define up to 4 Clocks. This choice specifies whether or not the clocks are reset each time you start painting on the Canvas.

      This choice defaults to the green check mark, which means that each time you tap on the Canvas and begin to paint, all four clocks are reset to their starting value.

      However, you might not want that to happen. You might want clocks to continue where they left off, each time you start a paint stroke. If that is the case, set this choice to a red X.

      When set to a red X, to reset a particular clock you can either reset it in the Brush Pane by changing the starting value (or setting it to what it already is). Additionally, any Brush or Surface Effects that use clocks have the ability to reset any clock in the Options Pane for that Effect.

       

      Draw Surface First


      Normally Pena draws the Brush Effect prior to drawing any Surface Effect, as shown below:

      If you change the Draw Surface First from a red X to a green check mark, you reverse the order of drawing. In this case the Surface Effect will be drawn prior to the Brush Effect, as shown below:

      You will note that the only difference between the two images is that the order of Brush and Surface have been switched.

       

      Wacom Bluetooth Stylus


      Pena supports the Wacom line of Bluetooth Stylus for iPad, such as the Wacom Creative Intuos Stylus.

      Note: The Wacom bluetooth stylus is only compatible with iPad Mini, iPad3, iPad4, iPad Air, or higher.

      Using a Wacom Bluetooth Stylus has several advantages:

      • Pressure - The stylus transmit information about how hard you are pressing on the tablet. We translate that pressure into the brush size so you can make subtle changes to the brush size while paintint.
      • Color 1 / Color 2 Exchange - This is a Pena feature that only works while using the Stylus. By pressing a button on the Stylus you can switch which Color you are drawing to the screen. Normally Pena draws Color 1 to the screen. By tapping the switch on the Stylus you can switch to Color 2. This lets you load up two Effects or Colors and quickly switch between them while painting.
      When using the Wacom Bluetooth Stylus, the connection status will appear just below the Wacom Bluetooth Stylus text on the Preferences Pane.

      For complete instructions on using the Wacom Bluetooth Stylus with Pena, please see the chapter about the Wacom Bluetooth Stylus.

       

      Jot Bluetooth Stylus


      Pena supports the Jot line of Bluetooth Stylus for iPad, such as the Jot Touch 4 Stylus.

      Note: The Jot Touch 4 bluetooth stylus is only compatible with iPad Mini, iPad3, iPad4, iPad Air, or higher.

      Using a Jot Bluetooth Stylus has several advantages:

      • Pressure - The stylus transmit information about how hard you are pressing on the tablet. We translate that pressure into the brush size so you can make subtle changes to the brush size while paintint.
      • Color 1 / Color 2 Exchange - This is a Pena feature that only works while using the Stylus. By pressing a button on the Stylus you can switch which Color you are drawing to the screen. Normally Pena draws Color 1 to the screen. By tapping the switch on the Stylus you can switch to Color 2. This lets you load up two Effects or Colors and quickly switch between them while painting.
      When using the Jot Bluetooth Stylus, the connection status will appear just below the Jot Bluetooth Stylus text on the Preferences Pane.

      For complete instructions on using the Jot Bluetooth Stylus with Pena, please see the chapter about the Jot Bluetooth Stylus.

       

      Reset Pena


      As you use Pena you may make some setting and just not be able to figure out what you did and how to reset it.

      In this situation, the Reset Pena button can help. Using this feature will completely reset Pena back to its factory settings (how it looked and acted when you ran it the first time).

      Note that all of your saved content is kept. Saved brushes, programs, and paintings, are all retained. Only Pena settings are reset.

      When you tap the Reset Pena button you will see the following Pop Up:

      Tap the Cancel Reset choice to dismiss the Pop Up without taking any action. Otherwise tap the Reset All Settings Except Saved Content choice.

      If you tapped the Reset All Settings Except Saved Content choice you will now see the following Pop Up:

      Tap the Ok button and Pena will exit to your iPads main screen. Simply restart Pena and it will be completely reset.

       

      View Help


      Tapping the View Help button will bring up Mobile Safari with this Help Manual loaded. You will need an internet connection in order to view the manual.

       

      Pena Version


      At the very bottom of the Preference Pane is the Pena Versions. Consult this to see if your current version is the latest.

       

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    pena © 2014 by David Cook
    Apple®, the Apple logo, iPad, iPad Air, iPad Mini, iPod, iPhone, and iTunes
    are trademarks of Apple Inc., registered in the U.S. and other countries.
    Wacom®, and Wacom Intuos Creative Stylus are trademarks of Wacom, registered in the U.S and other countries.