Novas, Lens Flares, and Lightning!

Gradient tools

Here are examples of the linear and circular gradient tools.

These tools have a number of uses.  For example, you can use a linear gradient to make a sky, or you can use a circular gradient to make a 3d shape by using a spherical alpha selection.

These tools will use whatever gradient is set in the fill/gradient panel, and you can edit your own if you want.
Combine modes can be used with gradients to create unique effects like the one to the left.  Select them from the Gradient modes sub menu.

This effect was created with the linear gradient tool, and the 'greater than' combine mode.

The Linear Alpha Fader

The Linear Alpha Fader tool will fade out part of the alpha channel, making it possible to apply neet gradient effects to the alpha.

 Here, you see the Linear Alpha Fader as it has been applied to a blank alpha channel.
Here, you can see how it is used with another tool, in this case, the color adjustment filter. And you can see how it can be used with images (selections) already in the alpha channel.

Warping

Warping lets you create a bulge or pitted area in an image.  The best way to make use of this is to experiment, as the effects can be very interesting and fun to manipulate.

 

Novas and Lens Flares

Novas are similar to lens flares.  They are effects like you might see from an intense pinpoint light entering a camera lens.

Novas are always additive, and they use the current primary color.  You won't see anything if you work on a white image, or use black as your primary color.

 You can add multiple novas of different colors to get more interesting effects.
Lens flares are effects created by an intense light shining into a camera's lens assembly.  The light reflects from lens to lens, creating a sometimes beautiful effect.

While lens flares are undesirable in photography, they are used quite often in special effects simply because they look neat, and they help simulate the way footage from an actual camera would look.

Lightning

PD Pro has a lightning utility built in.  It can be used to create electrical storms or special effects.  The effect is additive, and always set to a blue shade.  You can use a layer, and additional tools if you desire to change the color.