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lookamb - Online in the Cloud

Run lookamb in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command lookamb that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator



lookamb - examine ambient file values


lookamb [ -d ][ -r ][ -h ] [ ambfile ]


Lookamb examines an ambient file produced by rpict(1), rtrace(1), or rvu(1). The default
mode prints the position, direction, level, weight, radius, value, position gradient and
direction gradient for each stored ambient value preceded by a label appropriate for human
interpretation. The -d option prints the same quantities in 18 columns without any
expanatory text, and is more appropriate as input to another program.

The -r option performs the reverse conversion, taking the output of lookamb and
reproducing the original ambient file on the standard output.

The -h option causes lookamb not to print out the header information on the output, or not
to expect it on the input with the -r option.

If no file is given, lookamb reads from the standard input.


Before release 2.2 of Radiance, ambient files were in a machine-dependent format. Since
that is no longer the case, ambient files can now be moved freely between machines without
any conversions. Thus, the only reason to use lookamb now is to examine the contents of
an ambient file.

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