How To > How to Add Effects to a Scene

Chapter 20: How to Add Effects to a Scene

Once your animation is completed, you can add effects such as blurs and glows to make your project look even better! Harmony provides you with a series of essential effects that you can add to your layers.

About Effects

An effect always needs a drawing connection and sometimes a matte or shape connection. A matte provides drawing information that determines the area on which the effect will be applied on the drawing. The details and colours within the matte drawing don't matter, as only the shape and transparencies are used. A matte is also known as mask.

The matte principle can be demonstrated with the Cutter effect.

The Cutter effect cuts out a portion of an image using a matte drawing. You can use the Cutter effect to allow a character to disappear behind a background element or to cut a virtual hole into the layer itself. The Cutter requires a matte input.

Adjust the Cutter properties to invert the effect of the matte on an image. Instead of the object being hidden by the mask, it will only be visible where it intersects with the matte shape area.

You can adjust the effect parameters in the Layer Properties view and link any of them to a function column to be animated over time. This means that all of the effects can be customized.

Adding Effects

In Harmony, you can add effects through the Timeline view, connecting them to your drawing layers and then adjusting the parameters until you achieve the look you want.

Cutter Effect

The Cutter effect cuts out a portion of an image using a matte drawing. You can use the Cutter effect to allow a character to disappear behind a background element or to cut a virtual hole into the layer itself. The Cutter requires a matte input.

Adjust the Cutter properties to invert the effect of the matte on an image. Instead of the object being hidden by the mask, it will only be visible where it intersects with the matte shape area.

Cutter Properties

Parameter Description
Name

Allows you to change the node's name.

Inverted

When this option is enabled, the Cutter node will invert the matte shape to cut the drawing. Instead of cutting the image intersecting with the matte, it will cut any artwork outside of the matte shape.

Animating an Effect Over Time

When compositing your scene, you will often want to animate the parameters of an effect over time. For example, you may want an object to fade in or out by changing the transparency level over time or by increasing the colour contrast on one of your drawings over a certain frame range.

To animate an effect over time, create a function curve by adding keyframes to the parameters you want to animate. To do this, you will use these views: Layer Properties and Timeline. You can fine tune your animation using the Function view.