Ramp
Function
This function generates a linear gradation between two edges. You can
toggle the direction of the ramp either horizontally or vertically. The
Ramp is, among other things, handy to analyze color-correction
nodes. Attach a horizontal Ramp to the a color-correction node,
and attach that to a PlotScanline.
To do a radial gradation, use RGrad.
To do a four-corner ramp, use Grad.
Parameters
|
Type
|
Defaults
|
Function
|
width |
int
|
GetDefaultWidth() |
width of the image |
height |
int
|
GetDefaultHeight() |
height of the image |
bytes |
int
|
1 |
bit depth, 1, 2, or 4 bytes/channel |
orientation |
int
|
0 |
horizontal or vertical orientation
0 = vertical orientation
1 = horizontal orientation
|
center |
float
|
.5 |
The mid-point of the gradation. |
red, green, blue, alpha, depth |
float
|
0, 0, 0, 1, 0,
1, 1, 1, 1, 0
|
value of red, green, blue,
alpha, and Z channels. |
Synopsis
image Ramp(
int width,
int height,
int bytes,
int orientation,
float center,
float red1,
float green1,
float blue1,
float alpha1,
float depth1,
float red2,
float green2,
float blue2,
float alpha2,
float depth2
);
Script
image = Ramp( width, height, bytes, orientation, etc...);
Command Line
shake -ramp width height bytes etc...
See Also
Rand, RGrad,
Grad, Black,
Checker, ColorWheel
|