7 |
|
* External symbols declared in source.h |
8 |
|
*/ |
9 |
|
|
10 |
< |
/* ==================================================================== |
11 |
< |
* The Radiance Software License, Version 1.0 |
12 |
< |
* |
13 |
< |
* Copyright (c) 1990 - 2002 The Regents of the University of California, |
14 |
< |
* through Lawrence Berkeley National Laboratory. All rights reserved. |
15 |
< |
* |
16 |
< |
* Redistribution and use in source and binary forms, with or without |
17 |
< |
* modification, are permitted provided that the following conditions |
18 |
< |
* are met: |
19 |
< |
* |
20 |
< |
* 1. Redistributions of source code must retain the above copyright |
21 |
< |
* notice, this list of conditions and the following disclaimer. |
22 |
< |
* |
23 |
< |
* 2. Redistributions in binary form must reproduce the above copyright |
24 |
< |
* notice, this list of conditions and the following disclaimer in |
25 |
< |
* the documentation and/or other materials provided with the |
26 |
< |
* distribution. |
27 |
< |
* |
28 |
< |
* 3. The end-user documentation included with the redistribution, |
29 |
< |
* if any, must include the following acknowledgment: |
30 |
< |
* "This product includes Radiance software |
31 |
< |
* (http://radsite.lbl.gov/) |
32 |
< |
* developed by the Lawrence Berkeley National Laboratory |
33 |
< |
* (http://www.lbl.gov/)." |
34 |
< |
* Alternately, this acknowledgment may appear in the software itself, |
35 |
< |
* if and wherever such third-party acknowledgments normally appear. |
36 |
< |
* |
37 |
< |
* 4. The names "Radiance," "Lawrence Berkeley National Laboratory" |
38 |
< |
* and "The Regents of the University of California" must |
39 |
< |
* not be used to endorse or promote products derived from this |
40 |
< |
* software without prior written permission. For written |
41 |
< |
* permission, please contact [email protected]. |
42 |
< |
* |
43 |
< |
* 5. Products derived from this software may not be called "Radiance", |
44 |
< |
* nor may "Radiance" appear in their name, without prior written |
45 |
< |
* permission of Lawrence Berkeley National Laboratory. |
46 |
< |
* |
47 |
< |
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
48 |
< |
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
49 |
< |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
50 |
< |
* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR |
51 |
< |
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
52 |
< |
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
53 |
< |
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
54 |
< |
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
55 |
< |
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
56 |
< |
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
57 |
< |
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
58 |
< |
* SUCH DAMAGE. |
59 |
< |
* ==================================================================== |
60 |
< |
* |
61 |
< |
* This software consists of voluntary contributions made by many |
62 |
< |
* individuals on behalf of Lawrence Berkeley National Laboratory. For more |
63 |
< |
* information on Lawrence Berkeley National Laboratory, please see |
64 |
< |
* <http://www.lbl.gov/>. |
65 |
< |
*/ |
10 |
> |
#include "copyright.h" |
11 |
|
|
12 |
|
#include "ray.h" |
13 |
|
|
19 |
|
|
20 |
|
#include "face.h" |
21 |
|
|
22 |
< |
#define SRCINC 4 /* realloc increment for array */ |
22 |
> |
#define SRCINC 8 /* realloc increment for array */ |
23 |
|
|
24 |
|
SRCREC *source = NULL; /* our list of sources */ |
25 |
|
int nsources = 0; /* the number of sources */ |
54 |
|
if (nsources == 0) |
55 |
|
source = (SRCREC *)malloc(SRCINC*sizeof(SRCREC)); |
56 |
|
else if (nsources%SRCINC == 0) |
57 |
< |
source = (SRCREC *)realloc((char *)source, |
57 |
> |
source = (SRCREC *)realloc((void *)source, |
58 |
|
(unsigned)(nsources+SRCINC)*sizeof(SRCREC)); |
59 |
|
if (source == NULL) |
60 |
|
return(-1); |
61 |
|
source[nsources].sflags = 0; |
62 |
|
source[nsources].nhits = 1; |
63 |
< |
source[nsources].ntests = 2; /* initial hit probability = 1/2 */ |
63 |
> |
source[nsources].ntests = 2; /* initial hit probability = 50% */ |
64 |
> |
#if SHADCACHE |
65 |
> |
source[nsources].obscache = NULL; |
66 |
> |
#endif |
67 |
|
return(nsources++); |
68 |
|
} |
69 |
|
|
101 |
|
src->so = so; |
102 |
|
/* get the face */ |
103 |
|
f = getface(so); |
104 |
+ |
if (f->area == 0.0) |
105 |
+ |
objerror(so, USER, "zero source area"); |
106 |
|
/* find the center */ |
107 |
|
for (j = 0; j < 3; j++) { |
108 |
|
src->sloc[j] = 0.0; |
111 |
|
src->sloc[j] /= (double)f->nv; |
112 |
|
} |
113 |
|
if (!inface(src->sloc, f)) |
114 |
< |
objerror(so, USER, "cannot hit center"); |
114 |
> |
objerror(so, USER, "cannot hit source center"); |
115 |
|
src->sflags |= SFLAT; |
116 |
|
VCOPY(src->snorm, f->norm); |
117 |
|
src->ss2 = f->area; |
145 |
|
src->so = so; |
146 |
|
if (so->oargs.nfargs != 4) |
147 |
|
objerror(so, USER, "bad arguments"); |
148 |
< |
src->sflags |= SDISTANT; |
148 |
> |
src->sflags |= (SDISTANT|SCIR); |
149 |
|
VCOPY(src->sloc, so->oargs.farg); |
150 |
|
if (normalize(src->sloc) == 0.0) |
151 |
|
objerror(so, USER, "zero direction"); |
173 |
|
if (so->oargs.nfargs != 4) |
174 |
|
objerror(so, USER, "bad # arguments"); |
175 |
|
if (so->oargs.farg[3] <= FTINY) |
176 |
< |
objerror(so, USER, "illegal radius"); |
176 |
> |
objerror(so, USER, "illegal source radius"); |
177 |
> |
src->sflags |= SCIR; |
178 |
|
VCOPY(src->sloc, so->oargs.farg); |
179 |
|
src->srad = so->oargs.farg[3]; |
180 |
|
src->ss2 = PI * src->srad * src->srad; |
181 |
|
for (i = 0; i < 3; i++) |
182 |
|
src->ss[SU][i] = src->ss[SV][i] = src->ss[SW][i] = 0.0; |
183 |
|
for (i = 0; i < 3; i++) |
184 |
< |
src->ss[i][i] = .7236 * so->oargs.farg[3]; |
184 |
> |
src->ss[i][i] = 0.7236 * so->oargs.farg[3]; |
185 |
|
} |
186 |
|
|
187 |
|
|
196 |
|
src->so = so; |
197 |
|
/* get the ring */ |
198 |
|
co = getcone(so, 0); |
199 |
+ |
if (CO_R1(co) <= FTINY) |
200 |
+ |
objerror(so, USER, "illegal source radius"); |
201 |
|
VCOPY(src->sloc, CO_P0(co)); |
202 |
|
if (CO_R0(co) > 0.0) |
203 |
< |
objerror(so, USER, "cannot hit center"); |
204 |
< |
src->sflags |= SFLAT; |
203 |
> |
objerror(so, USER, "cannot hit source center"); |
204 |
> |
src->sflags |= (SFLAT|SCIR); |
205 |
|
VCOPY(src->snorm, co->ad); |
206 |
|
src->srad = CO_R1(co); |
207 |
|
src->ss2 = PI * src->srad * src->srad; |
221 |
|
src->so = so; |
222 |
|
/* get the cylinder */ |
223 |
|
co = getcone(so, 0); |
224 |
+ |
if (CO_R0(co) <= FTINY) |
225 |
+ |
objerror(so, USER, "illegal source radius"); |
226 |
|
if (CO_R0(co) > .2*co->al) /* heuristic constraint */ |
227 |
|
objerror(so, WARNING, "source aspect too small"); |
228 |
|
src->sflags |= SCYL; |
256 |
|
return(ns); |
257 |
|
if ((ns = (SPOT *)malloc(sizeof(SPOT))) == NULL) |
258 |
|
return(NULL); |
259 |
+ |
if (m->oargs.farg[3] <= FTINY) |
260 |
+ |
objerror(m, USER, "zero angle"); |
261 |
|
ns->siz = 2.0*PI * (1.0 - cos(PI/180.0/2.0 * m->oargs.farg[3])); |
262 |
|
VCOPY(ns->aim, m->oargs.farg+4); |
263 |
|
if ((ns->flen = normalize(ns->aim)) == 0.0) |