Subject: sp6 / raytracer / logging / dbug output

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 > Sorry one other question, in the sp6main.c you are using stderr
 > in your fprintf.... I had to change it to stdout to get it to
 > dump into sp6.out, should I keep it that way or am I doing
 > something else wrong?

In the Unix environment it is standard to send the primary
output (namely the .ppm image you will be building) to stdout
and EVERYTHING else (e.g. model description, debug output)
to the stderr.  Hopefully it should be obvious that a .ppm
file that also contained debug or log output would not be
a very pretty picture.

In sp5.c some folks who had apparently forgotten the discussion
regarding the need to use the bash shell and how to redirect
output as:

ray 400 300 < test1.txt 1> test1.ppm 2> test1.log

changed the main program and made all logging output go to the
stdout.

I initially "fined" these folks 5 points but when one of them
pointed out that I had not adequately identified the problem
I rescinded the fine.

I feel that I have now provided adequate notification and am
DOUBLING the fine for anyone who changes my main program!