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Comparing ray/doc/ray.1 (file contents):
Revision 1.4 by greg, Sat Mar 15 17:32:55 2003 UTC vs.
Revision 1.14 by greg, Wed Apr 30 22:00:28 2008 UTC

# Line 1 | Line 1
1   .\" RCSid "$Id"
2   .\" Print using the -ms macro package
3 < .DA 1/20/99
3 > .DA 4/30/2008
4   .LP
5 < .tl """Copyright \(co 2003 Regents, University of California
5 > .tl """Copyright \(co 2008 Regents, University of California
6   .sp 2
7   .TL
8   The
# Line 402 | Line 402 | mod spotlight id
402   .LP
403   .UL Mirror
404   .PP
405 < Mirror is used for planar surfaces that produce secondary
405 > Mirror is used for planar surfaces that produce virtual
406   source reflections.
407   This material should be used sparingly, as it may cause the light
408   source calculation to blow up if it is applied to many small surfaces.
# Line 426 | Line 426 | mod mirror id
426   .UL Prism1
427   .PP
428   The prism1 material is for general light redirection from prismatic
429 < glazings, generating secondary light sources.
429 > glazings, generating virtual light sources.
430   It can only be used to modify a planar surface (i.e., a polygon or disk)
431   and should not result in either light concentration or scattering.
432   The new direction of the ray can be on either side of the material,
433   and the definitions must have the correct bidirectional properties
434 < to work properly with secondary light sources.
434 > to work properly with virtual light sources.
435   The arguments give the coefficient for the redirected light
436   and its direction.
437   .DS
# Line 1109 | Line 1109 | which serves as a form of opacity control when used wi
1109   Vname is the coefficient defined in funcfile that determines the influence
1110   of foreground.
1111   The background coefficient is always (1-vname).
1112 Since the references are not resolved until runtime, the last
1113 definitions of the modifier id's will be used.
1114 This can result in modifier loops, which are detected by the
1115 renderer.
1112   .LP
1113   .UL Mixdata
1114   .PP
# Line 1239 | Line 1235 | If no file is needed by a given primitive because all
1235   variables are global, a period (`.') can be given in
1236   place of the file name.
1237   It is also possible to give an expression instead of a straight
1238 < variable name in a scene file, although such expressions should
1239 < be kept simple if possible.
1244 < Also, functions (requiring parameters)
1238 > variable name in a scene file.
1239 > Functions (requiring parameters)
1240   must be given as names and not as expressions.
1241   .PP
1242   Constant expressions are used as an optimization in function
# Line 1433 | Line 1428 | License
1428   .DS
1429   The Radiance Software License, Version 1.0
1430  
1431 < Copyright (c) 1990 - 2002 The Regents of the University of California,
1431 > Copyright (c) 1990 - 2008 The Regents of the University of California,
1432   through Lawrence Berkeley National Laboratory.   All rights reserved.
1433  
1434   Redistribution and use in source and binary forms, with or without
# Line 1495 | Line 1490 | the Ecole Polytechnique Federale de Lausanne (EPFL Uni
1490   in Lausanne, Switzerland.
1491   .NH 1
1492   References
1493 + .LP
1494 + Cater, K., A. Chalmers, G. Ward,
1495 + ``Detail to Attention: Exploiting Visual Tasks for Selective Rendering,''
1496 + .I "Eurograhics Symposium on Rendering",
1497 + June 2003.
1498   .LP
1499   Ward, G., Elena Eydelberg-Vileshin,
1500   ``Picture Perfect RGB Rendering Using Spectral Prefiltering and

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