QuickTime 4 Reference

SMPTE Radial Effects

kRadialTransitionType ('smp3')

This effect is an implementation of the 39 radial effects from ANSI/SMPTE 258M-1993, plus two Apple-defined wipes that choose a random effect. These are a series of radial "reveal" type effects that take place between two sources. For full definitions of these 39 radial effects and what they look like, please refer to the SMPTE documentation.

Example:

The SMPTE radial effects take two sources and seven parameters.

Parameters

Use the descriptions below to help you understand what the parameters do. To learn how to use parameter atoms, see "Adding Video Effects to a QuickTime Movie"

Name	Code	QTAtom Type	Description
Percentage	`'pcnt'`	`kParameterTypeDataFixed` Always a tween	This parameter contains a tween. As the effect progresses, QuickTime renders the frame of the effect indicated by the tween's current value, as a percentage of the whole effect. For example, if the tween goes from 0 to 100, the effect renders completely; if the tween goes from 25 to 75, rendering begins 25% into the effect and terminates 75% through the effect.
Wipe ID	`'wpID'`	`kParameterTypeDataEnum`	Contains the SMPTE ID for the effect. By setting this parameter, you control which of the 39 available radial effects is used. See the enumeration list below.
Soft border	`'soft'`	`kParameterTypeDataBitField`	If this parameter contains `true` , the border drawn around the second source is blurred.
Border width	`'widt'`	`kParameterTypeDataFixed` Can be a tween	The width, in pixels, of a border that is drawn around the second source.
Border color	`'bclr'`	`kParameterTypeDataRGBValue` Can be a tween	The RGB color of the border around the second source.
Horizontal repeat	`'hori'`	`kParameterTypeDataLong` Can be a tween	The number of horizontal repeats of the effect that are executed in a single source.
Vertical repeat	`'vert'`	`kParameterTypeDataLong` Can be a tween	The number of vertical repeats of the effect that are executed in a single source.

Wipe ID Enum

The Wipe ID parameter can take the following values:

Value	String
201	Rotating top
202	Rotating right
203	Rotating bottom
204	Rotating left
205	Rotating top bottom
206	Rotating left right
207	Rotating quadrant
211	Top to bottom 180°
212	Right to left 180°
213	Top to bottom 90°
214	Right to left 90°
221	Top 180°
222	Right 180°
223	Bottom 180°
224	Left 180°
225	Counter rotating top bottom
226	Counter rotating left right
227	Double rotating top bottom
228	Double rotating left right
231	V Open top
232	V Open right
233	V Open bottom
234	V Open left
235	V Open top bottom
236	V Open left right
241	Rotating top left
242	Rotating bottom left
243	Rotating bottom right
244	Rotating top right
245	Rotating top left bottom right
246	Rotating bottom left top right
251	Rotating top left right
252	Rotating left top bottom
253	Rotating bottom left right
254	Rotating right top bottom
261	Rotating double center right
262	Rotating double center top
263	Rotating double center top bottom
264	Rotating double center left right
409	Random effect (One of the 133 SMPTE effects is chosen at random)
503	Random radial (One of the 39 SMPTE radial effects is chosen at random)