MacroSystem Digital Video HDV-Recorder Manual do Utilizador descarregar pdf (Página 56)

Chapter 4

here more comfortably than in the single frame preview, where

your changes are applied to a still image.

The transition effects in detail

The following transition effects belong to the basic package on

the program’s CD/DVD.

1. 3D Mosaic: The ﬁrst scene is divided into small squares, the

number of which you can set in the effect options under ‘Num-

ber of Squares’ (between 1 and 15). The squares ‘ﬂy’ out of the

picture and reveal the second scene.

2. 3D stripes: The second scene is pushed into the picture in

the ‘Direction’ you choose (from top to bottom, or from bottom

to top) with from 2 to 30 stripes (‘Number of stripes’).

3. Bars: The new picture either pushes (‘Type’ ‘Push’) the old

with from 2 to 200 ‘Bars’ out of view or superimposes itself

(‘Type’ ‘Inset’). Under ‘Direction’ you have a choice of six. Two

are interlocked (come from two sides). Recommended dura-

tion: 0.5 to 2 seconds.

4. Picture in picture: This is not really a true transition effect.

But Bogart SE handles it as an effect because it affects two

scenes simultaneously. The ﬁrst of the two scenes ﬁlls the

entire screen in the background. The second scene is inset on

it as a reduced image. The position of the small image can be

set in the effect options with the button ‘Location’. The buttons

‘Shadow’ and ‘Frame’ are used to set a value from 0-50. The

frame color can be set with the color box through the button

‘Frame Color’. Avoid using very strong colors, because this

can lead to jaggedness in the upper-right and lower-right cor-

ners. For the picture-in-picture effect audio is not cross-faded,

as is the case with all other effects, but instead only the audio

of the ﬁrst scene (background video) is used. You can change

this default setting by using audio mixing. Recommended

duration: at least 5 seconds.

5. Blue box: With this effect you can remove undesirable

elements from a foreground scene and place the remaining

motif on another background. (This is also commonly called a

‘chroma-key’ effect) You are probably familiar with this effect,

it is used by weather forecasters on television. The speaker

actually stands in front of a blue wall and is projected onto the

weather map. The background scene can be any motif. The

foreground scene, located in the storyboard directly after the

background scene, should show an object (thing or person)

in front of a single-colored (blue is very suitable) background.

You can choose any color, but avoid using pale colors, black,

or white. With ‘Color Choice’ you can set the largest possible

box that deﬁnes the color range of the foreground scene to

be masked. In case the (blue) surface of the foreground scene

(because of illumination) is not completely single-colored, then

you can use ‘Color span’ to set the range in percent that the

color may deviate from the selected box (‘Color choice’). If you

click ‘Include area’, the foreground scene appears, but with the

help of a box you select here the portion of the background

scene to be used for this effect. If you want to see your object

in front of the entire background, set the box to be as large as

possible.

The ‘Exclude Area’ button speciﬁes the portion of the back-

ground that should remain in a single color. If you don’t want

to use this portion in your video footage, then make the box

smaller and move it out of the picture. Keep in mind before cal-

culating to adjust the running time of the effect to the duration

of both scenes by using the button ‘x s’. Ideally, both scenes

will be the same length.

6. Double exposure: This effect is the classical double expo-

sure as it has been used in ﬁlm for the last hundred years, and

leads to a very atmospheric picture transition. In essence, it

is an extended fade. With ‘Mode’ you can choose between

‘Crossfade’ (normal usage) and ‘Fade In/Out’ (recommended

for inserts). The ‘Fade time’ (sum of fade-in and fade-out)

can be set for up to 12 seconds. Under ‘Mix’ you can set the

proportion of the scenes involved up to 100%. If the control for

the mix proportion is set to 0%, then the ﬁrst scene is shown

in full. For 100% you see only the second scene. With 50%

both scenes are shown with the same intensity. This is suit-

able for normal transitions. Don’t forget to specify the duration

of the effect with the corresponding buttons. You will usually

use the ‘x s’ button to set the duration to the maximum so that

the transition takes effect throughout the entire double scene.

For this case you should trim both scenes to the same length

beforehand.

7. Color fade: With this effect the ﬁrst scene fades into a speci-

ﬁable color and from there fades into the second scene. Such

a fade is popular, for example, with edited interviews, where a

hard cut or other transition emphasizes the participant’s move-

ment. The usual color box is used here to set the ‘Color’. For

this effect black or white is the usual choice. Recommended

duration: 0.5 to 2 seconds.

8. Field changer: The scenes in this effect are alternated in

half images with each other so that a strobing effect ensues

keeping both scenes in movement. This effect can be used for

creating 3D PAL videos, if you have suitable footage.

9. Circle wipe: This effect changes from one scene to another

with a circle containing a scene and which becomes steadily

larger or smaller. The direction can be chosen with ‘Mode’.

‘In’ means that the second scene overlays the ﬁrst scene

with a circle that begins in the center of the screen and grows

outward until only the second scene is visible. With ‘Out’ the

ﬁrst scene is in a circle covering the screen but which then

becomes steadily smaller until it disappears, having been

replaced by the second scene. The well-known end to cartoon

ﬁlms can be replicated by using the ‘Black’ effect from the

‘New scene’ list and the mode ‘Out’. Recommended duration:

0.5 to 2 seconds.

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