ColorBars node

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

Description

Generate an image with SMPTE RP 219:2002 color bars.

The output of this plugin is broadcast-safe of “Output IRE” is unchecked. Be careful that colorbars are defined in a nonlinear colorspace. In order to get linear RGB, this plug-in should be combined with a transformation from the video space to linear.

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
Bar Intensity / barIntensity	Double	75	Bar Intensity, in IRE unit.
Output IRE / outputIRE	Boolean	Off	When checked, the output is scaled so that 0 is black, the max value is white, and the superblack (under the middle of the magenta bar) has a negative value.