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Comparing ray/doc/man/man1/rtrace.1 (file contents):
Revision 1.41 by greg, Tue Apr 22 17:12:25 2025 UTC vs.
Revision 1.45 by greg, Fri Dec 5 17:51:34 2025 UTC

# Line 260 | Line 260 | This is mostly useful for recovering image dimensions
260   and for creating valid Radiance picture files using the color output
261   format.
262   (See the
263 < .I \-f\*
263 > .I \-f*
264   option, above.)
265   .TP
266   .BI -n \ nproc
# Line 282 | Line 282 | cores available on the system or the
282   setting, which forces a wait at each flush.
283   .TP
284   .BI -f \ source
285 < Load definitions from
285 > Load function and variable definitions from the file
286   .I source
287 < and assign at global level.
287 > and assign at the global level.
288 > This may be convenient for altering material appearance on a per-run basis.
289 > The usual set of library directories is searched based on the
290 > .I RAYPATH
291 > environment variable.
292 > These file definitions will override same-named variables
293 > and functions in "rayinit.cal".
294   .TP
295   .BI -e \ expr
296 < Set additional definitions from
297 < .I expr.
296 > Set initial definitions from
297 > .I expr,
298 > which may include constant assignments with the ':' character.
299   .TP
300   .BI -dj \ frac
301   Set the direct jittering to
# Line 741 | Line 748 | Produce a single output channel corresponding to scoto
748   .TP
749   .BR \-pM
750   Produce a single output channel corresponding to melanopic luminance.
751 + .TP
752 + .BR \-pA
753 + Produce a single output channel corresponding to the total radiometric flux
754 + over the rendered spectrum.
755   .TP
756   .BI -e \ efile
757   Send error messages and progress reports to

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