CheckerBoard node

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.