Twirl
Function
This creates a whirlpool-like effect. It's fun.
Parameters
|
Type
|
Defaults
|
Function
|
startAngle |
float
|
0 |
The amound of twirl near the Center of
the rotation |
endAngle |
float
|
0 |
The amount of twirl away from the Center. |
aspectRatio |
float
|
1 |
The aspectRatio of the image. Useful when
you are working with a Global aspectRatio and anamorphic frames and
you are doing a rotation. |
x,yCenter |
float
|
width/2, height/2 |
Center of the twirl. |
x,yRadius |
float
|
width/2, width/2 |
Radius of the twirl circle. |
bias |
float
|
1 |
Controls how much of the twist occurs between the center and the
Radius. 0 means the outer Radius is not rotated, 1 means the center
is not rotated.
|
antialiasing |
float
|
1 |
Anti-aliasing on the effect. |
Synopsis
image Twirl(
image,
float startAngle,
float endAngle,
float aspectRatio,
float xCenter,
float yCenter,
float xRadius,
float yRadius,
float bias,
float antialiasing
);
Script
image = Twirl(
image,
startAngle,
endAngle,
aspectRatio,
xCenter,
yCenter,
xRadius,
yRadius,
bias,
antialiasing
);
Command Line
shake -twirl startAngle endAngle aspectRatio etc....
|