Scale Effect

Overview

The Scale Effect () multiplies the video size by the Target value (larger or smaller than 1) relative to the natural recorded size of the video. Scaling animation begins at the From value and continues up to (or down to) the To value. Check the Apply a From Value checkbox to use the From value (see Figure 2.). If a From is not applied, scaling will begin at the current scale value.

You can scale along either the X or Y axis or both. Using different values for Target Values X and Y will have the affect of stretching or squashing the image.

Give the effect a short Name that will identify its purpose or values.

See the Timing section for details on timing the animation of the effect.

See the Motion Behavior section for details on modifying the default behavior of the effect.

Target Values

• Valid Range  -100.0 to +100.0
• Special Values  - Value of 1.0 is the natural recorded size of the video (no scaling). Value of 0 effectivley makes the image disappear along the axis. Values less than 1 (0.99 to 0.01) will reduce the size. For example, 0.5 will make the image half size. Values greater than 1 (2-100) will increase the size. For example, 2 will double the image size. 3 will triple it, etc.
• Unique Behavior  - Negative X values will reverse the video image Horizontally. Negative Y values will reverse the video image Vertically.

Origin Point

Scaling expands (or contracts) the image along each axis from the Origin Point. An Origin Point centered on the image (X,Y = 0.5,0.5) is generally the best choice. See the Origin Point section for details the values.

In Figure 1, Origin Points (red dots based on X,Y values below the diagram) affect the way the image is scaled. Cyan rectangle is the image original size. Light blue rectangle is the image scaled by a factor of 2 (both X ans Y). Arrows show the direction of size expansion.

Favorite Values

As a productivity aid, you can save the entire effect (all values on all tabs) as a Favorite with the Save as Favorite Values button. Then you can set all values of an effect from the Favorite values using the Set from Favorite Values button. Separate favorites are saved for each type of effect (Scale, rotation, etc).

Scale Example

This example shows a before and after size of a Screen when we set Scale Targets to X=0.5, Y=0.5 (Figure 3). The Screen rectangle sides are reduced by 50% (Screen on the righthand side).