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Comparing ray/src/rt/ambient.h (file contents):
Revision 2.7 by greg, Sat Feb 22 02:07:28 2003 UTC vs.
Revision 2.15 by greg, Tue May 31 18:01:09 2005 UTC

# Line 1 | Line 1
1 < /* RCSid: $Id$ */
1 > /* RCSid $Id$ */
2   /*
3   * Common definitions for interreflection routines.
4   *
5   * Include after ray.h
6   */
7 + #ifndef _RAD_AMBIENT_H_
8 + #define _RAD_AMBIENT_H_
9 + #ifdef __cplusplus
10 + extern "C" {
11 + #endif
12  
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 – */
64 –
13   /*
14   * Since we've defined our vectors as float below to save space,
15   * watch out for changes in the definitions of VCOPY() and DOT()
# Line 71 | Line 19 | typedef struct ambrec {
19          unsigned long  latick;  /* last accessed tick */
20          float  pos[3];          /* position in space */
21          float  dir[3];          /* normal direction */
22 <        int  lvl;               /* recursion level of parent ray */
22 >        int    lvl;             /* recursion level of parent ray */
23          float  weight;          /* weight of parent ray */
24          float  rad;             /* validity radius */
25          COLOR  val;             /* computed ambient value */
# Line 87 | Line 35 | typedef struct ambtree {
35  
36   typedef struct {
37          short  t, p;            /* theta, phi indices */
38 <        COLOR  v;               /* value sum */
38 >        COLOR  v;               /* division sum (partial) */
39          float  r;               /* 1/distance sum */
40          float  k;               /* variance for this division */
41          int  n;                 /* number of subsamples */
42   }  AMBSAMP;             /* ambient sample division */
43  
44   typedef struct {
45 +        COLOR  acoef;           /* division contribution coefficient */
46          FVECT  ux, uy, uz;      /* x, y and z axis directions */
47          short  nt, np;          /* number of theta and phi directions */
48 +        int    ns;              /* number of super-samples */
49   }  AMBHEMI;             /* ambient sample hemisphere */
50  
51   extern double  maxarad;         /* maximum ambient radius */
52   extern double  minarad;         /* minimum ambient radius */
53  
54 + #ifndef AVGREFL
55   #define  AVGREFL        0.5     /* assumed average reflectance */
56 + #endif
57  
58   #define  AMBVALSIZ      75      /* number of bytes in portable AMBVAL struct */
59   #define  AMBMAGIC       557     /* magic number for ambient value files */
60   #define  AMBFMT         "Radiance_ambval"       /* format id string */
61  
110 – #ifdef NOPROTO
111 –
112 – extern int      divsample();
113 – extern double   doambient();
114 – extern void     inithemi();
115 – extern void     comperrs();
116 – extern void     posgradient();
117 – extern void     dirgradient();
118 – extern void     setambres();
119 – extern void     setambacc();
120 – extern void     setambient();
121 – extern void     ambdone();
122 – extern void     ambnotify();
123 – extern void     ambient();
124 – extern double   sumambient();
125 – extern double   makeambient();
126 – extern void     extambient();
127 – extern int      ambsync();
128 – extern void     putambmagic();
129 – extern int      hasambmagic();
130 – extern int      writambval();
131 – extern int      ambvalOK();
132 – extern int      readambval();
133 – extern void     lookamb();
134 – extern void     writamb();
135 –
136 – #else
137 –                                        /* defined in ambcomp.c */
138 – extern int      divsample(AMBSAMP *dp, AMBHEMI *h, RAY *r);
139 – extern double   doambient(COLOR acol, RAY *r, double wt, FVECT pg, FVECT dg);
140 – extern void     inithemi(AMBHEMI *hp, RAY *r, double wt);
141 – extern void     comperrs(AMBSAMP *da, AMBHEMI *hp);
142 – extern void     posgradient(FVECT gv, AMBSAMP *da, AMBHEMI *hp);
143 – extern void     dirgradient(FVECT gv, AMBSAMP *da, AMBHEMI *hp);
62                                          /* defined in ambient.c */
63   extern void     setambres(int ar);
64   extern void     setambacc(double newa);
65   extern void     setambient(void);
66 + extern void     multambient(COLOR aval, RAY *r, FVECT nrm);
67   extern void     ambdone(void);
68   extern void     ambnotify(OBJECT obj);
150 – extern void     ambient(COLOR acol, RAY *r, FVECT nrm);
69   extern double   sumambient(COLOR acol, RAY *r, FVECT rn, int al,
70                                  AMBTREE *at, FVECT c0, double s);
71   extern double   makeambient(COLOR acol, RAY *r, FVECT rn, int al);
72   extern void     extambient(COLOR cr, AMBVAL *ap, FVECT pv, FVECT nv);
73   extern int      ambsync(void);
74 +                                        /* defined in ambcomp.c */
75 + extern double   doambient(COLOR acol, RAY *r, double wt,
76 +                                        FVECT pg, FVECT dg);
77 + extern void     inithemi(AMBHEMI *hp, COLOR ac, RAY *r, double wt);
78 + extern int      divsample(AMBSAMP *dp, AMBHEMI *h, RAY *r);
79 + extern void     comperrs(AMBSAMP *da, AMBHEMI *hp);
80 + extern void     posgradient(FVECT gv, AMBSAMP *da, AMBHEMI *hp);
81 + extern void     dirgradient(FVECT gv, AMBSAMP *da, AMBHEMI *hp);
82                                          /* defined in ambio.c */
83   extern void     putambmagic(FILE *fp);
84   extern int      hasambmagic(FILE *fp);
# Line 163 | Line 89 | extern int     readambval(AMBVAL *av, FILE *fp);
89   extern void     lookamb(FILE *fp);
90   extern void     writamb(FILE *fp);
91  
92 +
93 + #ifdef __cplusplus
94 + }
95   #endif
96 + #endif /* _RAD_AMBIENT_H_ */
97 +

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