SMPTE Iris Effects (`smp2')20

SMPTE Iris Effects (`smp2')

This effect is an implementation of the 26 iris effects from ANSI/SMPTE 258M-1993, plus two Apple-defined wipes that choose a random effect. These are a series of "reveal" type effects which take place between two sources. For full definitions of these 26 iris effects and what they look like, please refer to the SMPTE documentation.

Example:

The SMPTE effects take two sources and seven parameters.

Parameters

kParameterEnumList, 1, noChildren,
{
long { "3" }; // No of elements in the enum

long {"1"}; string { "Straight Alpha" };
long {"2"}; string { "Pre-multiply Alpha" };
long {"3"}; string { "Reverse Alpha" };
};

Name	Code	Type	Description
Percentage	`pcnt'	Fixed	This parameter is a tween. QuickTime will render the frame of the effect indicated by the tween's current value, as a percentage of the whole effect. If the tween goes from 0 to 100, the effect renders completely. If the tween goes from 25 to 75, for example, rendering begins 25% into the effect and terminates 75% through the effect.
Wipe ID	`wpID'	Enum	The SMPTE ID for the effect. By setting this parameter, you control which of the 26 available iris effects is used.
Soft Border	`soft'	BitField	If this parameter contains `true` , the border drawn around the second source is blurred.
Border Width	`widt'	Fixed	The width, in pixels, of a border which is drawn around the second source.
Border Color	`bclr'	RGBValue	The RGB color of the border around the second source.
Horizontal Repeat	`hori'	Long	The number of horizontal repeats of the effect that are executed in a single source.
Vertical Repeat	`vert'	Long	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:

101.Rectangle

102.Diamond

103.Triangle

104.Triangle right

105.Triangle upside down

106.Triangle left

107.Arrowhead

108.Arrowhead right

109.Arrowhead upside down

110.Arrowhead left

111.Pentagon

112.Pentagon upside down

113.Hexagon

114.Hexagon side

119.Circle

120.Oval

121.Oval side

122.Cat eye

123.Cat eye side

124.Round rect

125.Round rect side

127.4 point star

128.5 point star

129.6 point star

130.Heart

131.Keyhole

409. Random Effect - one of the 133 SMPTE effects is chosen at random.

502. Random Iris - one of the 26 SMPTE iris effects is chosen at random.