Pena Contents
Control Pane
Brush Pane
Texture Pane
Effects Pane
  • Effects Pane Introduction
  • Creating Brush Programs
  • Creating Surface Programs
  • Turning Effects On/Off
  • Program Manager
    Effect Clear/Swap
    Effect Preview
    Picking Textures
    Save/Load Brush Effects
  • The Other Effect Pane Icons
    Color Picker
    Save/Load Pane
    Selection Pane
    Preferences Pane
    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


      Previous SectionHide ContentsNext Section

      The Effects Pane

      Effects Pane Introduction

      You access the Effects Pane by tapping the Effects Pane icon on the Control Pane:

      This next section outlines the basic functionality of the Effects Pane, or you can view the video tutorial Pena Tutorial #8 - The Effects Pane, Part 1 and Pena Tutorial #9 - The Effects Pane, Part 2.

      When the Effects Pane opens it will attach either to the top or bottom of the Control Pane, depending on where it can fit better.

      Changing the position of the Control Pane will also change the position of the Effects Pane.

      To close the Effects Pane simply hit the Effects Pane icon on the Control Pane. Opening up most other panes will also close the Effects Pane.

      The Effects Pane is the most important area in Pena. It is here that you set up the Effects you want to paint with.

      This section will give you an overview of how to use the Effects Pane. Other sections will explain how the actual Brush / Surface Effects and Intelligent Canvas work.

      If you will recall from the Pena Introduction paint flow works like this:

      1. Color 1 and Color 2 - All paint starts with two colors defined, Color 1 and Color 2. Color 1 is the Primary Color and Color 2 is an additional color to use in various Effects. Colors are set in the Color Picker.
      2. 0-32 Brush Effects - Color 1 and Color 2 are handed to the Brush. You can have up to 32 Brush Effects in current use. If no Brush Effects are used, Color 1 is what will end up being painted with. Otherwise the Brush Effects will modify Color 1 and Color 2 dynamically to produce the actual paint.
      3. 0-32 Surface Effects - The Surface can also contain programs that make up the Intelligent Canvas. If no Surface Effects are defined the Color 1 as modified by any Brush Effects will be used, otherwise the Surface Effects will either modify or override Color 1 and Color 2 to produce the actual paint.
      4. Final Drawing Surface - The Drawing Surface is the final destination for the paint. This is your canvas and your final painting. The Drawing Surface can also be used as a Texture in Brush and Surface Effects, allowing you to use the existing painting as input for the next layer of paint.
      5. Back Light - Behind the canvas is a Back Light. By default it is black, but you can change the color at any time via the Trash Can icon on the Control Pane.

      The Effects Pane specifically deals with Step #2 (the 0-32 Brush Effects) and Step #3 (the 0-32 Surface Effects).

      Also remember that there is a setting in the Preferences Pane that lets you switch the order of Step 2 (The Brush Effects) and Step 3 (The Surface Effects) in the above diagram. By default Brush Effects execute before Surface Effects, however, when the setting is changed Surface Effects execute first, the Brush Effects.


      Creating Brush Programs

      This section is presented in a tutorial fashion to help get the concept of creating Brush Effect Programs across.

      At the top, the Effects Pane is divided into two areas. The left side lets you create your Brush Programs. The basic controls are these:

      Unlike the image above, the first time you start Pena there will be no Brush Effects loaded, so the list will be empty.

      If you paint with an empty Brush Program, your current Color 1, from the Control Pane, will be painted to the screen.


      Creating Your First Program...

      A Program is a collection of one or more Effects you are going to apply to your Brush.

      You will notice that each slot in the Brush Effect list is numbered, starting at 01 and, if you drag through the list, ending at 32. These are the 32 slots you will store your Brush Effects in.

      Scroll the list so that Slot 01 is visible, and then tap in the middle of the slot, on the grey background. You will see the following Pop Up:

      This Pop Up contains all the Effects available for both the Brush and Surface.

      The Effects are arranged in six categories:

      • Color Sources - These define color sources. Basic colors, Textures and Noise from your Texture Pane, the Current Drawing (Canvas), and lots of modifications on those, such as embossing, twisting, rotating, edge detecting and more.
      • Procedural Sources - Complex Effects which can act as their own color source, or modify other color sources. These include gradients, bricks, clouds, clay, fractals, rings, grids, honeycombs, lattices, metals, noise, polkadots, soap films, stage lights, textured walls, water, and more.
      • Color Filters - Simple Effects that let you combine Color 1 and Color 2 in different ways including averaging, blending, brightness adjustment, contrast, saturation, hue, tint, and more.
      • Spatial Filters - Effects that operate spatially, including a star, an airbrush, a stipple pattern generator, texture displacement, ripples, rotates, and more.
      • Math and Logic - A variety of Effects including clock control, color math (add, subtract, multiply, etc.), burn, dodge, overlay, screen, and more.
      • Special Effects - A collection of Procedural Sources that are unusual or serve as good starting backgrounds. These include oddities such as Big Bang, lens, pinwheels, kaleidoscopes, diatoms, stain glass, posterization, blobs, star fields, sunbeams, super novas, and more.
      To pick an Effect, select the Category from the list of six on the left. Then scroll the right hand list to find the desired Effect.

      The first time you see this, it will be positioned on the Color Sources category.

      Let's start by selecting a Procedural Source instead. Tap the Procedural Sources category from the list on the left. The right hand list will change to look somewhat like what we show in the image above.

      Find the Effect named 4-Color Gradient in the list on the right, and Tap it.

      The Pop Up will now disappear and you will see that Slot 01 in the Program Effects now shows 4-Color Gradient.

      Paint a bit on the canvas (you might make a brush about the size of a half-dollar in the Brush Pane).

      You can see that you are painting a gradient with a Red Upper Left color, Green Upper Right color, Blue Lower Left color, and White Lower Right color:

      Note that the gradient spans the screen... that is, it is as if you are making a hidden gradient, the size of the screen, appear where ever you paint.

      Ok. Stop painting and your Program Pane should re-appear (depending on your Preferences, if it does not reappear just open it again from the Control Pane).

      On the right side of Brush Effect Slot 01, to the right of the words 4-Color Gradient is a blue circle with an i in it. This is the Options button.

      Tap the blue circle and you will see the following:

      This is an Options Pane and it contains the options available for the 4-Color Gradient Effect. Each Effect has its own options.

      You can see that the four corner colors of the gradient are there (UL is Upper Left, etc). Tapping the color will allow you to change it using the Color Picker.

      However, for this tutorial we are interested in the Fit To Brush setting. It will be a Red X, meaning that the gradient is not fit to the brush.

      Tap the Red X so that it turns to a Green Check Mark. This now means that the gradient will be fit to your brush, instead of the entire screen.

      Dismiss the Options Pane by tapping on the Canvas (or anywhere else outside of the Options Pane).

      Now paint on the Canvas... you should immediately see the difference. Instead of painting a 'hidden' gradient the size of the screen, the gradient now fits your brush - everywhere you paint you are painting the full gradient, the size of your brush:

      Now let's add a second program Effect.

      Tap the empty Brush Effect Slot #2 and from the Procedural Sources category, select the Brick Wall Effect.

      You will now have two Effects in your list:

      Go ahead and paint and you see what the brick wall looks like:

      But what happened to our gradient? Well, the Brick Wall is replacing Color 1, so it is replacing what the gradient produced.

      Tap the Blue Info circle for the Brick Wall to display its options pane.

      In Output Color 1, Tap the REPLACE:

      You will get a Pop Up with a list of choices. Tap the ADD choice:

      Now paint... your Fit-To-Brush gradient is now modifying the brick wall as you paint:

      The 4-Color Gradient Fit-To-Brush Effect outputs to Color 1. Brick Wall ADDS itself to Color 1 (because you selected ADD in the Brick Wall Options Pane). So now Color 1 is a combination of those two Effects.


      More About Fit To Brush...

      In the tutorial above, you saw the difference between using Fit To Brush and not using it.

      Many of the Effects have the Fit To Brush option. When it is turned off, the Effect size is fit to the entire screen. When it is on, the Effect size is fit to the brush.

      In all the Effects that offer Fit To Brush, it defaults to off (the Red X).

      Note that in our tutorial above, we had the 4-Color Gradient Effect set to Fit-To-Brush, while the Brick Wall was not. This is why the Brick Wall painted as if it was applied to the entire screen, with the gradient applied to the brush.

      These types of combinations can produce wildly different outcomes.


      More About The Color Mixers...

      Just about all the Effects (though not all) have a Color Mixer at the bottom of their Options Pane (the blue circle with the i in it).

      You already used the Color Mixers in the tutorial above to Add the Brick Wall Effect to the 4-Color Gradient Effect.

      Let us look more closely at what the Color Mixers do.

      In all cases, the Color Mixers default to this:

      This is asking you how you want the Effect to interact with Color 1 and Color 2. By default this it is set to REPLACE Color 1, and IGNORE Color 2.

      What that means is whatever was in Color 1 before this Effect will be completely replaced by the output of this Effect. Color 2 will remain what it was, as this Effect is ignoring it.

      To change how the Mixers interact, tap the Mixer you wish to change, and you see the Pop Up:

      The Pop Up will read "Color 1" or "Color 2" depending on which Mixer you selected.

      Tap the Cancel button to dismiss the Pop Up without taking any action. Otherwise the following choices are available:

      • IGNORE - This Effect will not change this Color.
      • REPLACE - This Effect will replace this Color.
      • ADD - This Effect will ADD to the Color. Each channel from the Effect (Red, Green, Blue, and Alpha) is added to each channel from the Color. They are clipped at the maximum, so this tends to produce lighter than normal images (more towards white).
      • MIX - This Effect will MIX with the Color. Each channel from the Effect (Red, Green, Blue, and Alpha) is mixed with each channel from the Color. The mix amount defaults to 50%, which is half the Effect and half the Color. On the Options Pane a thumb wheel will appear next to the Color Mixer that lets you change the Mix amount from 0% to 100%.
      • MULTIPLY - This Effect will be MULTIPLIED with the Color. Each channel from the Effect (Red, Green, Blue, and Alpha) is multiplied with each channel from the Color. Note that if either the Effect or the Color is black, you will get black as a result (as zero times anything is zero).
      Since there are two Color Mixers, one for Color 1, and one for Color 2, the Effect can output to one, or both, at the same time.

      If both Color Mixers are set to IGNORE, the Effect is still run but has no output. This is undesirable as it slows down your painting. There is an easier way to turn off an Effect, explained further below under Turning Effects On/Off.

      So what is Color 2 used for?

      Color 2 is an additional color that can be used just like Color 1. The only difference is that Color 2 is never drawn to the screen.

      Many Effects will perform actions between Color 1 and Color 2. For example, you can mix, or do math, between the two colors.

      A frequent use of Color 2 is to load a texture used to modify Color 1. If you have two photos, one assigned to Color 1 and the other assigned to Color 2, you can do many interesting things between the two images. For example, you could tint the photo assigned to Color 1, with the photo assigned to Color 2.

      Note that at the very left of both mixers in the Options Pane is a dim grey circle. Tapping either circle will swap (exchange) the Color 1 Output Mixer and Color 2 Output Mixer. This is a handy gesture as it saves many taps in many cases.


      Creating Surface Programs

      The Surface Program area is on the right hand side of the Effects Pane. It looks just like the Brush Program area, but is labeled Surface Effects at the top:

      By default, the Surface Program area is turned off. The Red X next to Surface Effects means that Surface Programs are not in use.

      Surface Program Effects lets you create an Intelligent Canvas. That is, you can specify areas of your Canvas that have Effects as properties.

      Important Note

      Using Surface Effects is fairly advanced and requires a good understanding of Brush Effects and the Selection Pane. We recommend learning Intelligent Canvas after you have mastered the other areas in Pena.

      That said... setting up and using the Surface Effect area is identical to the Brush Effect area. Everything that applies to one, applies to the other. The difference is how they are used.

      Because of our Important Note above, we do not explain Intelligent Canvas in this part of the manual, but rather in the section on The Intelligent Canvas.


      Turning Effects On/Off

      Let us take a look again at the Brush Effect area on the Effect Pane:

      In the image above, at the upper left, and along the left side, are the Green Check Marks, and that one Red X.

      These give you a very quick way to turn Effects on and off in your list.

      At the top of the Brush Program area is the word Brush Effects and to the left of it is a Green Check Mark. Tapping the Green Check Mark will turn it to a Red X. Tapping the Red X will turn it back to a Green Check Mark.

      If it is a Red X, no Brush Effects from the list below are used. All are ignored, even if the Effect has a Green Check Mark next to it.

      When the Brush Effects Check Mark is turned Green, any Brush Effect in the list below, which also has a Green Check Mark, will be used. This is an easy way to disable all Brush Effects without having to disable them individually.

      Simply tap the Green Check Mark, or Red X, to toggle it.

      Along the left of each Effect in your list there is also Green Check Mark, or Red X.

      As you would expect, these control the individual Effect. If the Effect shows a Green Check Mark, then the Effect will be used. If it is a Red X, then the Effect is skipped over and not used.

      Keep in mind that you have 32 Brush Effects you can put in that list. It is highly unlikely that you will create a single program that uses all 32 Effects in the list. That is probably too many Effects, and paint speed may be too slow.

      A more interesting use is to have several sets of programs in the list at once, and turning them on and off as you want to use them. This lets you make the 32 slots of the Brush Effects become more of an Effect Palette.

      There are more advanced management tools for organizing your Brush (and Surface) Effects in the very next section below...


      Program Manager

      The Program Manager icon on the Effects Pane is located just to the left of the middle of the Pane, below the Brush and Surface Effect lists.

      Tap the Program Manager icon to turn the Manager on, tap it again to turn the Manager off. When the Program Manager is on, the icon will be lit.

      When the Program Manger is on, the Brush and Surface Panes look like this:

      The Green Check Mark/Red X by each Effect has been replaced by a Delete Icon (red circle with a white dash).

      The blue info circle on the right of each Effect has been replaced by the Move Icon


      Deleting Effects...

      To delete an Effect from your Brush or Surface list, tap the red Delete Icon on the left of the Effect you wish to delete. The Effect will change to look like this:

      If you decide you do not want to delete the Effect, tap the grey area to the left of the red Delete area.

      If you want to delete this Effect from your list, tap the red Delete button. The Effect will immediately be removed from your list.


      Moving Effects...

      To move Effects in the list, tap and hold the Move icon (three stacked horizontal lines to the right of each Effect) and drag the Effect up or down:

      The image above shows the 02 Effect being dragged up above the 01 Effect.

      As you drag the Effect, the other Effects will skitter out of the way. Lift your finger when the Effect is positioned where you want it.

      Tap the Program Manager icon again to turn the Program Manager off.


      Making Room For New Effects...

      If you have two Effects in two consecutive slots, and wish to add a new Effect between them, simply tap on the 2nd Effect and a new slot will open above it. Likewise, if you tap on Slot #01, a new Slot #01 will appear and all the Effects will move down one.

      For example, let's say that you have an Effect in Slot #03 and Slot #04, and you wish to add a new Effect between them. Simply tap on Slot #04 and it, along with all the Effects below, will move one Slot down opening an empty space in Slot #04 for your new Effect.


      Effect Clear, Swap, Copy

      The Effect Clear/Swap icon on the Effects Pane is located just to the right of the middle of the Pane, below the Brush and Surface Effect lists.

      When you tap the Effect Clear Swap icon you will see the following Pop Up:

      Tap the Cancel button to dismiss the Pop Up without taking any action. Otherwise the following choices are available:

      • Copy Brush to Surface - All 32 Brush Effects (even empty ones) are copied onto the Surface Effect list, replacing all of the Surface Effects.
      • Copy Surface to Brush - All 32 Surface Effects (even empty ones) are copied onto the Brush Effect list, replacing all of the Brush Effects.
      • Swap Surface to Brush - All 32 Surface Effects (even empty ones) are exchanged with the Brush Effects. Everything that was on the Surface List will now be on the Brush List, and vice versa.
      • Clear Brush Program - All 32 Brush Effects are cleared.
      • Clear Surface Program - All 32 Surface Effects are cleared.
      If you are reading this manual from front to back, we have not yet discussed Surface Effects. But for the most part, the Surface Effects are selected and managed identically like the Brush Effects.

      The choices in this Pop Up let you COPY, SWAP, and CLEAR the entire list of Effects between Brush and Surface.

      When you are using both Brush and Surface painting (a very advanced use of Pena), having this capability lets you more easily manage and use your two sets of programs.

      However, even if you are only using Brush Effects - and are not using Surface Effects, you will find this useful.

      If you are only using Brush Effects, you can use the Surface Effect list to store even more Brush Effects, another 32. While you can not use them at the same time, you can easily swap between them using this button.

      If you use the system in this manner, just make sure the Green Check Mark next to Surface Effects is set to a Red X, so that none of the Effects in the Surface list are actually used on the surface.

      The other very useful capability is the ability to completely clear all the Effects in the Brush and Surface lists.


      Effect Preview

      It is often difficult to visualize what a series of Effects will do in combination, until you start painting with it.

      The Effect Preview icon, located on the bottom middle of the Effect Pane, helps solve this problem.

      When you tap the Effect Preview icon, the following happens:

      • All Panes disappear, only the Canvas is visible.
      • The current Brush and Surface Effects that are enabled are applied to the entire screen.
      • Pena waits for you...
      At this point you can see your current programs applied to the entire Canvas.

      When are done viewing, tap the Canvas:

      • The Effects will be removed from your Canvas, restoring your original painting.
      • All the Panes will reappear.

      This lets you preview a combination of Effects without destroying your Canvas (which would require you to hit Undo to reverse).

      Note that most Effect Options Panes also have the ability to Preview just the Effect or the entire Current Program.


      Picking Textures

      If you are paying attention, you will notice that this is the Texture Pane icon from the Control Pane.

      Because you will often create Effect Programs that use Textures or Noise, this is a convenience icon.

      When you tap the Texture Pane icon on the Control Pane the Effects Pane closes. That means you would always be opening Textures, then Effects, then Texture, which is a bit tedious.

      The Texture Pane icon on the Effects Pane does the same thing as the one on the Control Pane, except that it will not close the Effects Pane. If you are in the Effects Pane, you will save a lot of taps by opening Textures from here, rather than the Control pane.


      Saving and Loading Brush Effects

      In the lower left corner of the Effects Pane is the Brush Effect Save and Load icon.

      While the Load/Save icon on the Control Pane saves and loads Brush Effects (among other things), the Save and Load on this Effects Pane gives you yet another way to save Brush Effects.

      Use the Save Load icon on the Effects Pane to save and load your favorite Brush Program Effects.

      When you tap the Save Load icon, you will see the following Pop Up:

      To save your current Brush Effects on a new name, tap the top text entry field and enter the name using the keyboard.

      To quickly find an existing Brush Effect, use the blue index on the right to find the alphabetic start in the list.

      To delete a saved Brush Effect, tap the red circle and then the red DELETE that will appear (you can cancel by tapping anywhere in the grey area).

      To load, save, or merge, Brush Effects, tap the name of the Effect and you will see the following Pop Up:

      Tap the Cancel button to dismiss the Pop Up without taking any action. Otherwise the following choices are available:

      • Load This Brush Program - Tap this to have the selected Brush Program loaded into your Brush Effects Slot.
      • Merge Brush Program At Start - The selected Brush Program will be merged before all your existing Brush Effects. Empty slots in the selected Brush Program are not merged, but both Green Check Mark and Red X Effects are merged.
      • Merge Brush Program At End - The selected Brush Program will be merged at the end of all your existing Brush Effects. Empty slots in the selected Brush Program are not merged, but both Green Check mark and Red X Effects are merged.
      • Merge Brush Program Before 1st Unchecked Slot - The selected Brush Program will be merged before the first Red X Brush Effect in your list. Empty slots in the selected Brush Program are not merged, but both Green Check Mark and Red X Effects are merged. This is useful to insert an Effect between two other Effects in your list. Simply mark the second Effect as unused (Red X) and do this merge and the program will be placed before the second Effect.
      • Save Active Brush Program Here - Your current Brush Effects will be saved over top of this existing Brush Program.
      If the Brushes you are inserting won't fit, you will get a Pop Up message telling you of the problem.


      The Other Effect Pane Icons

      In the lower right corner of the Effects Pane are a series of icons that we have not yet covered.

      These icons are all part of the Intelligent Canvas (Surface Painting) and are covered in the The Intelligent Canvas section of the manual.


      Previous SectionHide ContentsNext Section

    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.