CheckerBoard node

pluginIcon

This documentation is for version 1.0 of CheckerBoard (net.sf.openfx.CheckerBoardPlugin).

Description

Generate an image with a checkerboard.

A frame range may be specified for operators that need it.

See also: https://web.archive.org/web/20220807183203/http://www.opticalenquiry.com/nuke/index.php?title=Constant,_CheckerBoard,_ColorBars,_ColorWheel

Inputs

Input Description Optional
Source   Yes

Controls

Parameter / script name Type Default Function
Extent / extent Choice Default
Extent (size and offset) of the output.
Format (format): Use a pre-defined image format.
Size (size): Use a specific extent (size and offset).
Project (project): Use the project extent (size and offset).
Default (default): Use the default extent (e.g. the source clip extent, if connected).
Center / recenter Button   Centers the region of definition to the input region of definition. If there is no input, then the region of definition is centered to the project window.
Reformat / reformat Boolean Off Set the output format to the given extent, except if the Bottom Left or Size parameters is animated.
Format / NatronParamFormatChoice Choice HD 1920x1080
The output format
PC_Video 640x480 (PC_Video)
NTSC 720x486 0.91 (NTSC)
PAL 720x576 1.09 (PAL)
NTSC_16:9 720x486 1.21 (NTSC_16:9)
PAL_16:9 720x576 1.46 (PAL_16:9)
HD_720 1280x720 (HD_720)
HD 1920x1080 (HD)
UHD_4K 3840x2160 (UHD_4K)
1K_Super_35(full-ap) 1024x778 (1K_Super_35(full-ap))
1K_Cinemascope 914x778 2.00 (1K_Cinemascope)
2K_Super_35(full-ap) 2048x1556 (2K_Super_35(full-ap))
2K_Cinemascope 1828x1556 2.00 (2K_Cinemascope)
2K_DCP 2048x1080 (2K_DCP)
4K_Super_35(full-ap) 4096x3112 (4K_Super_35(full-ap))
4K_Cinemascope 3656x3112 2.00 (4K_Cinemascope)
4K_DCP 4096x2160 (4K_DCP)
square_256 256x256 (square_256)
square_512 512x512 (square_512)
square_1K 1024x1024 (square_1K)
square_2K 2048x2048 (square_2K)
Bottom Left / bottomLeft Double x: 0 y: 0 Coordinates of the bottom left corner of the size rectangle.
Size / size Double w: 1 h: 1 Width and height of the size rectangle.
Interactive Update / interactive Boolean Off If checked, update the parameter values during interaction with the image viewer, else update the values when pen is released.
HiDPI / hidpi Boolean Off Should be checked when the display area is High-DPI (a.k.a Retina). Draws OpenGL overlays twice larger.
Frame Range / frameRange Integer min: 1 max: 1 Time domain.
Output Components / outputComponents Choice RGBA
Components in the output
RGBA
RGB
Alpha
Box Size / boxSize Double x: 64 y: 64 Size of the checkerboard boxes in pixels.
Color 0 / color0 Color r: 0.1 g: 0.1 b: 0.1 a: 1 Color to fill the box on top-left of image center and every other row and column.
Color 1 / color1 Color r: 0.5 g: 0.5 b: 0.5 a: 1 Color to fill the box on top-right of image center and every other row and column.
Color 2 / color2 Color r: 0.1 g: 0.1 b: 0.1 a: 1 Color to fill the box on bottom-right of image center and every other row and column.
Color 3 / color3 Color r: 0.5 g: 0.5 b: 0.5 a: 1 Color to fill the box on bottom-left of image center and every other row and column.
Line Color / lineColor Color r: 1 g: 1 b: 1 a: 1 Color of the line drawn between boxes.
Line Width / lineWidth Double 0 Width, in pixels, of the lines drawn between boxes.
Centerline Color / centerlineColor Color r: 1 g: 1 b: 0 a: 1 Color of the center lines.
Centerline Width / centerlineWidth Double 1 Width, in pixels, of the center lines.