mcogamma(1G)							  mcogamma(1G)

NAME    [Toc]    [Back]

     mcogamma -	set gamma on MultiChannel Option channels

SYNOPSIS    [Toc]    [Back]

     mcogamma -p# -c# -f<filename>

DESCRIPTION    [Toc]    [Back]

     The mcogamma command allows the setting of	the gamma lookup table
     directly for each output of the MultiChannel Option. This command affects
     the MultiChannel Option only, and has no effect on	the standard graphics
     output.

OPTIONS    [Toc]    [Back]

     -p	 pipe#
	  Specify which	graphics pipe number to	use. In	a machine with a
	  single graphics pipe,	this must be set to zero.

     -c	 channel#
	  Specify which	channel	of the MCO to change; this must	be a value
	  from zero to five.

     -f	 filename
	  Specify the file which describes the gamma table. This must be a
	  text file of 1024 lines; each	line has three integers	from 0 to
	  1023,	in ASCII format, separated by white space. The three integers
	  represent the	red, green, and	blue output intensities	respectively,
	  for this entry.

	  For instance,	a file corresponding to	a gamma	of 1.0 would look like
	  this:
	  0 0 0
	  1 1 1
	  2 2 2
	  3 3 3
	  [... and so on ...]
	  1023 1023 1023

	  If the above file was	saved to disk as gammaone, then	the command
	  mcogamma -p0 -c2 gammaone
	  would	set the	gamma of the main graphics pipe, MCO output number 2,
	  to 1.0.

HARDWARE    [Toc]    [Back]

     mcogamma works only on IRIS RealityEngine,	RealityEngine2,	and VTX
     graphics equipped with the	optional MultiChannel Option (MCO) hardware.

SEE ALSO    [Toc]    [Back]

     gamma(6D),	gammaramp(3G)







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mcogamma(1G)							  mcogamma(1G)



NOTES
     The normal	gamma command, and the value in	the file
     /etc/config/system.glGammaVal, have no effect on the MCO output.

     MCO gamma reverts to the default whenever graphics	is initialized.


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