6 |
|
* their associated virtual light sources |
7 |
|
*/ |
8 |
|
|
9 |
< |
/* ==================================================================== |
10 |
< |
* The Radiance Software License, Version 1.0 |
11 |
< |
* |
12 |
< |
* Copyright (c) 1990 - 2002 The Regents of the University of California, |
13 |
< |
* through Lawrence Berkeley National Laboratory. All rights reserved. |
14 |
< |
* |
15 |
< |
* Redistribution and use in source and binary forms, with or without |
16 |
< |
* modification, are permitted provided that the following conditions |
17 |
< |
* are met: |
18 |
< |
* |
19 |
< |
* 1. Redistributions of source code must retain the above copyright |
20 |
< |
* notice, this list of conditions and the following disclaimer. |
21 |
< |
* |
22 |
< |
* 2. Redistributions in binary form must reproduce the above copyright |
23 |
< |
* notice, this list of conditions and the following disclaimer in |
24 |
< |
* the documentation and/or other materials provided with the |
25 |
< |
* distribution. |
26 |
< |
* |
27 |
< |
* 3. The end-user documentation included with the redistribution, |
28 |
< |
* if any, must include the following acknowledgment: |
29 |
< |
* "This product includes Radiance software |
30 |
< |
* (http://radsite.lbl.gov/) |
31 |
< |
* developed by the Lawrence Berkeley National Laboratory |
32 |
< |
* (http://www.lbl.gov/)." |
33 |
< |
* Alternately, this acknowledgment may appear in the software itself, |
34 |
< |
* if and wherever such third-party acknowledgments normally appear. |
35 |
< |
* |
36 |
< |
* 4. The names "Radiance," "Lawrence Berkeley National Laboratory" |
37 |
< |
* and "The Regents of the University of California" must |
38 |
< |
* not be used to endorse or promote products derived from this |
39 |
< |
* software without prior written permission. For written |
40 |
< |
* permission, please contact [email protected]. |
41 |
< |
* |
42 |
< |
* 5. Products derived from this software may not be called "Radiance", |
43 |
< |
* nor may "Radiance" appear in their name, without prior written |
44 |
< |
* permission of Lawrence Berkeley National Laboratory. |
45 |
< |
* |
46 |
< |
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
47 |
< |
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
48 |
< |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
49 |
< |
* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR |
50 |
< |
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
51 |
< |
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
52 |
< |
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
53 |
< |
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
54 |
< |
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
55 |
< |
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
56 |
< |
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
57 |
< |
* SUCH DAMAGE. |
58 |
< |
* ==================================================================== |
59 |
< |
* |
60 |
< |
* This software consists of voluntary contributions made by many |
61 |
< |
* individuals on behalf of Lawrence Berkeley National Laboratory. For more |
62 |
< |
* information on Lawrence Berkeley National Laboratory, please see |
63 |
< |
* <http://www.lbl.gov/>. |
64 |
< |
*/ |
9 |
> |
#include "copyright.h" |
10 |
|
|
11 |
|
#include "ray.h" |
67 |
– |
|
12 |
|
#include "otypes.h" |
13 |
< |
|
13 |
> |
#include "rtotypes.h" |
14 |
|
#include "source.h" |
71 |
– |
|
15 |
|
#include "func.h" |
16 |
|
|
17 |
|
/* |
28 |
|
* n A1 A2 .. An |
29 |
|
*/ |
30 |
|
|
31 |
+ |
static int redirect(OBJREC *m, RAY *r, int n); |
32 |
+ |
static int dir_proj(MAT4 pm, OBJREC *o, SRCREC *s, int n); |
33 |
|
|
89 |
– |
static int dir_proj(); |
90 |
– |
|
34 |
|
VSMATERIAL direct1_vs = {dir_proj, 1}; |
35 |
|
VSMATERIAL direct2_vs = {dir_proj, 2}; |
36 |
|
|
39 |
|
getfunc(m, 8, 0xff, 1) ) |
40 |
|
|
41 |
|
|
42 |
< |
int |
43 |
< |
m_direct(m, r) /* shade redirected ray */ |
44 |
< |
register OBJREC *m; |
45 |
< |
register RAY *r; |
42 |
> |
extern int |
43 |
> |
m_direct( /* shade redirected ray */ |
44 |
> |
register OBJREC *m, |
45 |
> |
register RAY *r |
46 |
> |
) |
47 |
|
{ |
48 |
|
/* check if source ray */ |
49 |
|
if (r->rsrc >= 0 && source[r->rsrc].so != r->ro) |
60 |
|
} |
61 |
|
|
62 |
|
|
63 |
< |
int |
64 |
< |
redirect(m, r, n) /* compute n'th ray redirection */ |
65 |
< |
OBJREC *m; |
66 |
< |
RAY *r; |
67 |
< |
int n; |
63 |
> |
static int |
64 |
> |
redirect( /* compute n'th ray redirection */ |
65 |
> |
OBJREC *m, |
66 |
> |
RAY *r, |
67 |
> |
int n |
68 |
> |
) |
69 |
|
{ |
70 |
|
MFUNC *mf; |
71 |
|
register EPNODE **va; |
100 |
|
errno = 0; |
101 |
|
va = mf->ep + 4*n; |
102 |
|
coef = evalue(va[0]); |
103 |
< |
if (errno) |
103 |
> |
if (errno == EDOM || errno == ERANGE) |
104 |
|
goto computerr; |
105 |
|
if (coef <= FTINY || rayorigin(&nr, r, TRANS, coef) < 0) |
106 |
|
return(0); |
107 |
|
va++; /* compute direction */ |
108 |
|
for (j = 0; j < 3; j++) { |
109 |
|
nr.rdir[j] = evalue(va[j]); |
110 |
< |
if (errno) |
110 |
> |
if (errno == EDOM || errno == ERANGE) |
111 |
|
goto computerr; |
112 |
|
} |
113 |
|
if (mf->f != &unitxf) |
132 |
|
|
133 |
|
|
134 |
|
static int |
135 |
< |
dir_proj(pm, o, s, n) /* compute a director's projection */ |
136 |
< |
MAT4 pm; |
137 |
< |
OBJREC *o; |
138 |
< |
SRCREC *s; |
139 |
< |
int n; |
135 |
> |
dir_proj( /* compute a director's projection */ |
136 |
> |
MAT4 pm, |
137 |
> |
OBJREC *o, |
138 |
> |
SRCREC *s, |
139 |
> |
int n |
140 |
> |
) |
141 |
|
{ |
142 |
|
RAY tr; |
143 |
|
OBJREC *m; |
179 |
|
errno = 0; |
180 |
|
va = mf->ep + 4*n; |
181 |
|
coef = evalue(va[0]); |
182 |
< |
if (errno) |
182 |
> |
if (errno == EDOM || errno == ERANGE) |
183 |
|
goto computerr; |
184 |
|
if (coef <= FTINY) |
185 |
|
return(0); /* insignificant */ |
186 |
|
va++; |
187 |
|
for (i = 0; i < 3; i++) { |
188 |
|
newdir[i] = evalue(va[i]); |
189 |
< |
if (errno) |
189 |
> |
if (errno == EDOM || errno == ERANGE) |
190 |
|
goto computerr; |
191 |
|
} |
192 |
|
if (mf->f != &unitxf) |
204 |
|
pm[i][j] += nv[i]*h[j]; |
205 |
|
pm[3][j] = -od*h[j]; |
206 |
|
} |
207 |
< |
if (newdot > 0.0 ^ olddot > 0.0) /* add mirroring */ |
207 |
> |
if ((newdot > 0.0) ^ (olddot > 0.0)) /* add mirroring */ |
208 |
|
for (j = 0; j < 3; j++) { |
209 |
|
for (i = 0; i < 3; i++) |
210 |
|
pm[i][j] -= 2.*nv[i]*nv[j]; |