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Comparing ray/src/rt/dielectric.c (file contents):
Revision 2.15 by greg, Sat Feb 22 02:07:28 2003 UTC vs.
Revision 2.18 by schorsch, Tue Mar 30 16:13:01 2004 UTC

# Line 5 | Line 5 | static const char      RCSid[] = "$Id$";
5   *  dielectric.c - shading function for transparent materials.
6   */
7  
8 < /* ====================================================================
9 < * The Radiance Software License, Version 1.0
10 < *
11 < * Copyright (c) 1990 - 2002 The Regents of the University of California,
12 < * through Lawrence Berkeley National Laboratory.   All rights reserved.
13 < *
14 < * Redistribution and use in source and binary forms, with or without
15 < * modification, are permitted provided that the following conditions
16 < * are met:
17 < *
18 < * 1. Redistributions of source code must retain the above copyright
19 < *         notice, this list of conditions and the following disclaimer.
20 < *
21 < * 2. Redistributions in binary form must reproduce the above copyright
22 < *       notice, this list of conditions and the following disclaimer in
23 < *       the documentation and/or other materials provided with the
24 < *       distribution.
25 < *
26 < * 3. The end-user documentation included with the redistribution,
27 < *           if any, must include the following acknowledgment:
28 < *             "This product includes Radiance software
29 < *                 (http://radsite.lbl.gov/)
30 < *                 developed by the Lawrence Berkeley National Laboratory
31 < *               (http://www.lbl.gov/)."
32 < *       Alternately, this acknowledgment may appear in the software itself,
33 < *       if and wherever such third-party acknowledgments normally appear.
34 < *
35 < * 4. The names "Radiance," "Lawrence Berkeley National Laboratory"
36 < *       and "The Regents of the University of California" must
37 < *       not be used to endorse or promote products derived from this
38 < *       software without prior written permission. For written
39 < *       permission, please contact [email protected].
40 < *
41 < * 5. Products derived from this software may not be called "Radiance",
42 < *       nor may "Radiance" appear in their name, without prior written
43 < *       permission of Lawrence Berkeley National Laboratory.
44 < *
45 < * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
46 < * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
47 < * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
48 < * DISCLAIMED.   IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR
49 < * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
50 < * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
51 < * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
52 < * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
53 < * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
54 < * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
55 < * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
56 < * SUCH DAMAGE.
57 < * ====================================================================
58 < *
59 < * This software consists of voluntary contributions made by many
60 < * individuals on behalf of Lawrence Berkeley National Laboratory.   For more
61 < * information on Lawrence Berkeley National Laboratory, please see
62 < * <http://www.lbl.gov/>.
63 < */
8 > #include "copyright.h"
9  
10   #include  "ray.h"
66 –
11   #include  "otypes.h"
12 + #include  "rtotypes.h"
13  
14   #ifdef  DISPERSE
15   #include  "source.h"
16 < static  disperse();
17 < static int  lambda();
16 > static int disperse(OBJREC *m,RAY *r,FVECT vt,double tr,COLOR cet,COLOR abt);
17 > static int lambda(OBJREC  *m, FVECT  v2, FVECT  dv, FVECT  lr);
18   #endif
19  
20 + static double mylog(double  x);
21 +
22 +
23   /*
24   *     Explicit calculations for Fresnel's equation are performed,
25   *  but only one square root computation is necessary.
# Line 104 | Line 52 | static int  lambda();
52  
53  
54   static double
55 < mylog(x)                /* special log for extinction coefficients */
56 < double  x;
55 > mylog(          /* special log for extinction coefficients */
56 >        double  x
57 > )
58   {
59          if (x < 1e-40)
60                  return(-100.);
# Line 115 | Line 64 | double  x;
64   }
65  
66  
67 < m_dielectric(m, r)      /* color a ray which hit a dielectric interface */
68 < OBJREC  *m;
69 < register RAY  *r;
67 > extern int
68 > m_dielectric(   /* color a ray which hit a dielectric interface */
69 >        OBJREC  *m,
70 >        register RAY  *r
71 > )
72   {
73          double  cos1, cos2, nratio;
74          COLOR  ctrans;
# Line 134 | Line 85 | register RAY  *r;
85  
86          raytexture(r, m->omod);                 /* get modifiers */
87  
88 <        if (hastexture = DOT(r->pert,r->pert) > FTINY*FTINY)
88 >        if ( (hastexture = DOT(r->pert,r->pert) > FTINY*FTINY) )
89                  cos1 = raynormal(dnorm, r);     /* perturb normal */
90          else {
91                  VCOPY(dnorm, r->ron);
# Line 267 | Line 218 | register RAY  *r;
218  
219   #ifdef  DISPERSE
220  
221 < static
222 < disperse(m, r, vt, tr, cet, abt)  /* check light sources for dispersion */
223 < OBJREC  *m;
224 < RAY  *r;
225 < FVECT  vt;
226 < double  tr;
227 < COLOR  cet, abt;
221 > static int
222 > disperse(  /* check light sources for dispersion */
223 >        OBJREC  *m,
224 >        RAY  *r,
225 >        FVECT  vt,
226 >        double  tr,
227 >        COLOR  cet,
228 >        COLOR  abt
229 > )
230   {
231          RAY  sray, *entray;
232          FVECT  v1, v2, n1, n2;
# Line 404 | Line 357 | COLOR  cet, abt;
357  
358  
359   static int
360 < lambda(m, v2, dv, lr)                   /* compute lambda for material */
361 < register OBJREC  *m;
362 < FVECT  v2, dv, lr;
360 > lambda(                 /* compute lambda for material */
361 >        register OBJREC  *m,
362 >        FVECT  v2,
363 >        FVECT  dv,
364 >        FVECT  lr
365 > )
366   {
367          FVECT  lrXdv, v2Xlr;
368          double  dtmp, denom;

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