1 |
greg |
2.16 |
/* Copyright (c) 1993 Regents of the University of California */ |
2 |
greg |
1.1 |
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3 |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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#endif |
6 |
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7 |
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/* |
8 |
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* rv2.c - command routines used in tracing a view. |
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* |
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* 3/24/87 |
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*/ |
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#include "ray.h" |
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15 |
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#include "octree.h" |
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17 |
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#include "otypes.h" |
18 |
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19 |
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#include "rpaint.h" |
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21 |
greg |
1.33 |
#include "resolu.h" |
22 |
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23 |
greg |
1.1 |
#include <ctype.h> |
24 |
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25 |
greg |
2.4 |
#define CTRL(c) ((c)-'@') |
26 |
greg |
1.1 |
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27 |
greg |
2.6 |
#ifdef SMLFLT |
28 |
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#define sscanvec(s,v) (sscanf(s,"%f %f %f",v,v+1,v+2)==3) |
29 |
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#else |
30 |
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#define sscanvec(s,v) (sscanf(s,"%lf %lf %lf",v,v+1,v+2)==3) |
31 |
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#endif |
32 |
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33 |
greg |
2.18 |
extern char *atos(); |
34 |
greg |
2.6 |
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35 |
greg |
2.20 |
extern char rifname[128]; /* rad input file name */ |
36 |
greg |
2.18 |
|
37 |
greg |
1.29 |
extern char VersionID[]; |
38 |
greg |
1.1 |
extern char *progname; |
39 |
greg |
1.29 |
extern char *octname; |
40 |
greg |
1.1 |
|
41 |
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42 |
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getframe(s) /* get a new frame */ |
43 |
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char *s; |
44 |
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{ |
45 |
greg |
1.12 |
if (getrect(s, &pframe) < 0) |
46 |
greg |
1.1 |
return; |
47 |
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pdepth = 0; |
48 |
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} |
49 |
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50 |
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51 |
greg |
1.12 |
getrepaint(s) /* get area and repaint */ |
52 |
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char *s; |
53 |
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{ |
54 |
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RECT box; |
55 |
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56 |
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if (getrect(s, &box) < 0) |
57 |
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return; |
58 |
greg |
1.14 |
paintrect(&ptrunk, 0, 0, hresolu, vresolu, &box); |
59 |
greg |
1.12 |
} |
60 |
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61 |
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62 |
greg |
1.1 |
getview(s) /* get/show view parameters */ |
63 |
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char *s; |
64 |
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{ |
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FILE *fp; |
66 |
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char buf[128]; |
67 |
greg |
1.10 |
char *fname; |
68 |
greg |
1.3 |
int change = 0; |
69 |
greg |
1.1 |
VIEW nv; |
70 |
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|
71 |
greg |
2.9 |
while (isspace(*s)) |
72 |
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s++; |
73 |
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if (*s == '-') { /* command line parameters */ |
74 |
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copystruct(&nv, &ourview); |
75 |
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if (sscanview(&nv, s)) |
76 |
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newview(&nv); |
77 |
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else |
78 |
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error(COMMAND, "bad view option(s)"); |
79 |
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return; |
80 |
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} |
81 |
greg |
1.1 |
if (sscanf(s, "%s", buf) == 1) { /* write parameters to a file */ |
82 |
greg |
1.10 |
if ((fname = getpath(buf, NULL, 0)) == NULL || |
83 |
greg |
1.1 |
(fp = fopen(fname, "a")) == NULL) { |
84 |
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sprintf(errmsg, "cannot open \"%s\"", buf); |
85 |
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error(COMMAND, errmsg); |
86 |
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return; |
87 |
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} |
88 |
greg |
1.2 |
fputs(progname, fp); |
89 |
greg |
1.1 |
fprintview(&ourview, fp); |
90 |
greg |
1.19 |
fputs(sskip(s), fp); |
91 |
greg |
2.18 |
putc('\n', fp); |
92 |
greg |
1.1 |
fclose(fp); |
93 |
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return; |
94 |
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} |
95 |
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sprintf(buf, "view type (%c): ", ourview.type); |
96 |
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(*dev->comout)(buf); |
97 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
98 |
greg |
2.4 |
if (buf[0] == CTRL('C')) return; |
99 |
greg |
1.3 |
if (buf[0] && buf[0] != ourview.type) { |
100 |
greg |
1.1 |
nv.type = buf[0]; |
101 |
greg |
1.3 |
change++; |
102 |
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} else |
103 |
greg |
1.1 |
nv.type = ourview.type; |
104 |
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sprintf(buf, "view point (%.6g %.6g %.6g): ", |
105 |
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ourview.vp[0], ourview.vp[1], ourview.vp[2]); |
106 |
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(*dev->comout)(buf); |
107 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
108 |
greg |
2.4 |
if (buf[0] == CTRL('C')) return; |
109 |
greg |
2.6 |
if (sscanvec(buf, nv.vp)) |
110 |
greg |
1.3 |
change++; |
111 |
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else |
112 |
greg |
1.1 |
VCOPY(nv.vp, ourview.vp); |
113 |
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sprintf(buf, "view direction (%.6g %.6g %.6g): ", |
114 |
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ourview.vdir[0], ourview.vdir[1], ourview.vdir[2]); |
115 |
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(*dev->comout)(buf); |
116 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
117 |
greg |
2.4 |
if (buf[0] == CTRL('C')) return; |
118 |
greg |
2.6 |
if (sscanvec(buf, nv.vdir)) |
119 |
greg |
1.3 |
change++; |
120 |
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else |
121 |
greg |
1.1 |
VCOPY(nv.vdir, ourview.vdir); |
122 |
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sprintf(buf, "view up (%.6g %.6g %.6g): ", |
123 |
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ourview.vup[0], ourview.vup[1], ourview.vup[2]); |
124 |
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(*dev->comout)(buf); |
125 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
126 |
greg |
2.4 |
if (buf[0] == CTRL('C')) return; |
127 |
greg |
2.6 |
if (sscanvec(buf, nv.vup)) |
128 |
greg |
1.3 |
change++; |
129 |
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else |
130 |
greg |
1.1 |
VCOPY(nv.vup, ourview.vup); |
131 |
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sprintf(buf, "view horiz and vert size (%.6g %.6g): ", |
132 |
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ourview.horiz, ourview.vert); |
133 |
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(*dev->comout)(buf); |
134 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
135 |
greg |
2.4 |
if (buf[0] == CTRL('C')) return; |
136 |
greg |
1.3 |
if (sscanf(buf, "%lf %lf", &nv.horiz, &nv.vert) == 2) |
137 |
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change++; |
138 |
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else { |
139 |
greg |
1.1 |
nv.horiz = ourview.horiz; nv.vert = ourview.vert; |
140 |
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} |
141 |
greg |
1.14 |
sprintf(buf, "view shift and lift (%.6g %.6g): ", |
142 |
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ourview.hoff, ourview.voff); |
143 |
greg |
1.1 |
(*dev->comout)(buf); |
144 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
145 |
greg |
2.4 |
if (buf[0] == CTRL('C')) return; |
146 |
greg |
1.14 |
if (sscanf(buf, "%lf %lf", &nv.hoff, &nv.voff) == 2) |
147 |
greg |
1.3 |
change++; |
148 |
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else { |
149 |
greg |
1.14 |
nv.hoff = ourview.hoff; nv.voff = ourview.voff; |
150 |
greg |
1.1 |
} |
151 |
greg |
1.3 |
if (change) |
152 |
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newview(&nv); |
153 |
greg |
1.1 |
} |
154 |
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155 |
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156 |
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lastview(s) /* return to a previous view */ |
157 |
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char *s; |
158 |
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{ |
159 |
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char buf[128]; |
160 |
greg |
1.10 |
char *fname; |
161 |
greg |
1.1 |
int success; |
162 |
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VIEW nv; |
163 |
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164 |
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if (sscanf(s, "%s", buf) == 1) { /* get parameters from a file */ |
165 |
greg |
1.17 |
copystruct(&nv, &stdview); |
166 |
greg |
2.19 |
if ((fname = getpath(buf, "", R_OK)) == NULL || |
167 |
greg |
1.33 |
(success = viewfile(fname, &nv, NULL)) == -1) { |
168 |
greg |
1.1 |
sprintf(errmsg, "cannot open \"%s\"", buf); |
169 |
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error(COMMAND, errmsg); |
170 |
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return; |
171 |
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} |
172 |
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if (!success) |
173 |
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error(COMMAND, "wrong file format"); |
174 |
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else |
175 |
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newview(&nv); |
176 |
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return; |
177 |
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} |
178 |
greg |
1.20 |
if (oldview.type == 0) { /* no old view! */ |
179 |
greg |
1.1 |
error(COMMAND, "no previous view"); |
180 |
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return; |
181 |
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} |
182 |
greg |
1.17 |
copystruct(&nv, &ourview); |
183 |
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copystruct(&ourview, &oldview); |
184 |
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copystruct(&oldview, &nv); |
185 |
greg |
1.1 |
newimage(); |
186 |
greg |
2.18 |
} |
187 |
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188 |
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189 |
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saveview(s) /* save view to rad file */ |
190 |
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char *s; |
191 |
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{ |
192 |
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char view[64]; |
193 |
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char *fname; |
194 |
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FILE *fp; |
195 |
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196 |
greg |
2.19 |
if (*atos(view, sizeof(view), s)) { |
197 |
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if (isint(view)) { |
198 |
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error(COMMAND, "cannot write view by number"); |
199 |
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return; |
200 |
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} |
201 |
greg |
2.18 |
s = sskip(s); |
202 |
greg |
2.19 |
} |
203 |
greg |
2.20 |
while (isspace(*s)) |
204 |
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s++; |
205 |
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if (*s) |
206 |
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atos(rifname, sizeof(rifname), s); |
207 |
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else if (rifname[0] == '\0') { |
208 |
greg |
2.18 |
error(COMMAND, "no previous rad file"); |
209 |
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return; |
210 |
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} |
211 |
|
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if ((fname = getpath(rifname, NULL, 0)) == NULL || |
212 |
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(fp = fopen(fname, "a")) == NULL) { |
213 |
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sprintf(errmsg, "cannot open \"%s\"", rifname); |
214 |
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error(COMMAND, errmsg); |
215 |
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return; |
216 |
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} |
217 |
|
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fputs("view= ", fp); |
218 |
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fputs(view, fp); |
219 |
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fprintview(&ourview, fp); |
220 |
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putc('\n', fp); |
221 |
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fclose(fp); |
222 |
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} |
223 |
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|
224 |
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|
225 |
|
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loadview(s) /* load view from rad file */ |
226 |
|
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char *s; |
227 |
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{ |
228 |
|
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char buf[512]; |
229 |
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char *fname; |
230 |
|
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FILE *fp; |
231 |
|
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VIEW nv; |
232 |
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|
233 |
|
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strcpy(buf, "rad -n -s -V -v "); |
234 |
|
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if (sscanf(s, "%s", buf+strlen(buf)) == 1) |
235 |
|
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s = sskip(s); |
236 |
|
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else |
237 |
|
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strcat(buf, "1"); |
238 |
greg |
2.20 |
if (*s) |
239 |
|
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atos(rifname, sizeof(rifname), s); |
240 |
|
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else if (rifname[0] == '\0') { |
241 |
greg |
2.18 |
error(COMMAND, "no previous rad file"); |
242 |
|
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return; |
243 |
|
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} |
244 |
greg |
2.19 |
if ((fname = getpath(rifname, "", R_OK)) == NULL) { |
245 |
greg |
2.18 |
sprintf(errmsg, "cannot access \"%s\"", rifname); |
246 |
|
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error(COMMAND, errmsg); |
247 |
|
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return; |
248 |
|
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} |
249 |
|
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sprintf(buf+strlen(buf), " %s", fname); |
250 |
|
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if ((fp = popen(buf, "r")) == NULL) { |
251 |
|
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error(COMMAND, "cannot run rad"); |
252 |
|
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return; |
253 |
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} |
254 |
|
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buf[0] = '\0'; |
255 |
|
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fgets(buf, sizeof(buf), fp); |
256 |
|
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pclose(fp); |
257 |
|
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copystruct(&nv, &stdview); |
258 |
|
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if (!sscanview(&nv, buf)) { |
259 |
|
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error(COMMAND, "rad error -- no such view?"); |
260 |
|
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return; |
261 |
|
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} |
262 |
|
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newview(&nv); |
263 |
greg |
1.1 |
} |
264 |
|
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|
265 |
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|
266 |
|
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getaim(s) /* aim camera */ |
267 |
|
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char *s; |
268 |
|
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{ |
269 |
|
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double zfact; |
270 |
|
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VIEW nv; |
271 |
|
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|
272 |
|
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if (getinterest(s, 1, nv.vdir, &zfact) < 0) |
273 |
|
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return; |
274 |
greg |
1.21 |
nv.type = ourview.type; |
275 |
greg |
1.1 |
VCOPY(nv.vp, ourview.vp); |
276 |
|
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VCOPY(nv.vup, ourview.vup); |
277 |
greg |
1.14 |
nv.hoff = ourview.hoff; nv.voff = ourview.voff; |
278 |
greg |
1.21 |
nv.horiz = ourview.horiz; nv.vert = ourview.vert; |
279 |
|
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zoomview(&nv, zfact); |
280 |
greg |
1.1 |
newview(&nv); |
281 |
|
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} |
282 |
|
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|
283 |
|
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|
284 |
|
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getmove(s) /* move camera */ |
285 |
|
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char *s; |
286 |
|
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{ |
287 |
|
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FVECT vc; |
288 |
|
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double mag; |
289 |
|
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|
290 |
|
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if (getinterest(s, 0, vc, &mag) < 0) |
291 |
|
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return; |
292 |
greg |
1.4 |
moveview(0.0, 0.0, mag, vc); |
293 |
greg |
1.1 |
} |
294 |
|
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|
295 |
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|
296 |
|
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getrotate(s) /* rotate camera */ |
297 |
|
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char *s; |
298 |
|
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{ |
299 |
|
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VIEW nv; |
300 |
|
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FVECT v1; |
301 |
greg |
1.4 |
double angle, elev, zfact; |
302 |
greg |
1.1 |
|
303 |
greg |
1.4 |
elev = 0.0; zfact = 1.0; |
304 |
|
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if (sscanf(s, "%lf %lf %lf", &angle, &elev, &zfact) < 1) { |
305 |
greg |
1.1 |
error(COMMAND, "missing angle"); |
306 |
|
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return; |
307 |
|
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} |
308 |
greg |
1.21 |
nv.type = ourview.type; |
309 |
greg |
1.1 |
VCOPY(nv.vp, ourview.vp); |
310 |
|
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VCOPY(nv.vup, ourview.vup); |
311 |
greg |
1.14 |
nv.hoff = ourview.hoff; nv.voff = ourview.voff; |
312 |
greg |
1.1 |
spinvector(nv.vdir, ourview.vdir, ourview.vup, angle*(PI/180.)); |
313 |
|
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if (elev != 0.0) { |
314 |
|
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fcross(v1, nv.vdir, ourview.vup); |
315 |
|
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normalize(v1); |
316 |
|
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spinvector(nv.vdir, nv.vdir, v1, elev*(PI/180.)); |
317 |
|
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} |
318 |
greg |
1.21 |
nv.horiz = ourview.horiz; nv.vert = ourview.vert; |
319 |
|
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zoomview(&nv, zfact); |
320 |
greg |
1.1 |
newview(&nv); |
321 |
|
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} |
322 |
|
|
|
323 |
|
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|
324 |
|
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getpivot(s) /* pivot viewpoint */ |
325 |
|
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register char *s; |
326 |
|
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{ |
327 |
|
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FVECT vc; |
328 |
greg |
1.4 |
double angle, elev, mag; |
329 |
greg |
1.1 |
|
330 |
greg |
1.4 |
elev = 0.0; |
331 |
|
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if (sscanf(s, "%lf %lf", &angle, &elev) < 1) { |
332 |
greg |
1.1 |
error(COMMAND, "missing angle"); |
333 |
|
|
return; |
334 |
|
|
} |
335 |
greg |
1.4 |
if (getinterest(sskip(sskip(s)), 0, vc, &mag) < 0) |
336 |
greg |
1.1 |
return; |
337 |
greg |
1.4 |
moveview(angle, elev, mag, vc); |
338 |
greg |
1.1 |
} |
339 |
|
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|
340 |
|
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|
341 |
|
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getexposure(s) /* get new exposure */ |
342 |
|
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char *s; |
343 |
|
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{ |
344 |
|
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char buf[128]; |
345 |
|
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register char *cp; |
346 |
|
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RECT r; |
347 |
|
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int x, y; |
348 |
greg |
2.16 |
register PNODE *p = &ptrunk; |
349 |
|
|
int adapt = 0; |
350 |
|
|
double e = 1.0; |
351 |
|
|
start: |
352 |
greg |
1.1 |
for (cp = s; isspace(*cp); cp++) |
353 |
|
|
; |
354 |
greg |
2.16 |
if (*cp == '@') { |
355 |
|
|
adapt++; |
356 |
|
|
goto start; |
357 |
|
|
} |
358 |
greg |
1.1 |
if (*cp == '\0') { /* normalize to point */ |
359 |
|
|
if (dev->getcur == NULL) |
360 |
|
|
return; |
361 |
|
|
(*dev->comout)("Pick point for exposure\n"); |
362 |
|
|
if ((*dev->getcur)(&x, &y) == ABORT) |
363 |
|
|
return; |
364 |
|
|
r.l = r.d = 0; |
365 |
greg |
1.14 |
r.r = hresolu; r.u = vresolu; |
366 |
greg |
1.1 |
p = findrect(x, y, &ptrunk, &r, -1); |
367 |
|
|
} else { |
368 |
|
|
if (*cp == '=') { /* absolute setting */ |
369 |
|
|
p = NULL; |
370 |
|
|
e = 1.0/exposure; |
371 |
|
|
for (cp++; isspace(*cp); cp++) |
372 |
|
|
; |
373 |
|
|
if (*cp == '\0') { /* interactive */ |
374 |
greg |
2.15 |
sprintf(buf, "exposure (%f): ", exposure); |
375 |
greg |
1.1 |
(*dev->comout)(buf); |
376 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
377 |
greg |
1.1 |
for (cp = buf; isspace(*cp); cp++) |
378 |
|
|
; |
379 |
|
|
if (*cp == '\0') |
380 |
|
|
return; |
381 |
|
|
} |
382 |
|
|
} |
383 |
|
|
if (*cp == '+' || *cp == '-') /* f-stops */ |
384 |
|
|
e *= pow(2.0, atof(cp)); |
385 |
|
|
else /* multiplier */ |
386 |
|
|
e *= atof(cp); |
387 |
|
|
} |
388 |
|
|
if (p != NULL) { /* relative setting */ |
389 |
greg |
2.14 |
if (bright(p->v) < 1e-15) { |
390 |
greg |
1.1 |
error(COMMAND, "cannot normalize to zero"); |
391 |
|
|
return; |
392 |
|
|
} |
393 |
greg |
2.16 |
if (adapt) |
394 |
|
|
e *= 106./pow(1.219+pow(luminance(p->v)/exposure,.4),2.5)/exposure; |
395 |
|
|
else |
396 |
|
|
e *= 0.5 / bright(p->v); |
397 |
greg |
1.1 |
} |
398 |
|
|
if (e <= FTINY || fabs(1.0 - e) <= FTINY) |
399 |
|
|
return; |
400 |
|
|
scalepict(&ptrunk, e); |
401 |
|
|
exposure *= e; |
402 |
|
|
redraw(); |
403 |
|
|
} |
404 |
|
|
|
405 |
|
|
|
406 |
greg |
1.24 |
getparam(str, dsc, typ, ptr) /* get variable from user */ |
407 |
|
|
char *str, *dsc; |
408 |
|
|
int typ; |
409 |
|
|
register union {int i; double d; COLOR C;} *ptr; |
410 |
|
|
{ |
411 |
greg |
1.25 |
extern char *index(); |
412 |
greg |
1.24 |
int i0; |
413 |
|
|
double d0, d1, d2; |
414 |
|
|
char buf[48]; |
415 |
|
|
|
416 |
|
|
switch (typ) { |
417 |
|
|
case 'i': /* integer */ |
418 |
|
|
if (sscanf(str, "%d", &i0) != 1) { |
419 |
|
|
(*dev->comout)(dsc); |
420 |
|
|
sprintf(buf, " (%d): ", ptr->i); |
421 |
|
|
(*dev->comout)(buf); |
422 |
|
|
(*dev->comin)(buf, NULL); |
423 |
|
|
if (sscanf(buf, "%d", &i0) != 1) |
424 |
greg |
1.31 |
return(0); |
425 |
greg |
1.24 |
} |
426 |
|
|
ptr->i = i0; |
427 |
greg |
1.31 |
return(1); |
428 |
greg |
1.24 |
case 'r': /* real */ |
429 |
|
|
if (sscanf(str, "%lf", &d0) != 1) { |
430 |
|
|
(*dev->comout)(dsc); |
431 |
|
|
sprintf(buf, " (%.6g): ", ptr->d); |
432 |
|
|
(*dev->comout)(buf); |
433 |
|
|
(*dev->comin)(buf, NULL); |
434 |
|
|
if (sscanf(buf, "%lf", &d0) != 1) |
435 |
greg |
1.31 |
return(0); |
436 |
greg |
1.24 |
} |
437 |
|
|
ptr->d = d0; |
438 |
greg |
1.31 |
return(1); |
439 |
greg |
1.24 |
case 'b': /* boolean */ |
440 |
|
|
if (sscanf(str, "%1s", buf) != 1) { |
441 |
|
|
(*dev->comout)(dsc); |
442 |
greg |
2.2 |
sprintf(buf, "? (%c): ", ptr->i ? 'y' : 'n'); |
443 |
greg |
1.24 |
(*dev->comout)(buf); |
444 |
|
|
(*dev->comin)(buf, NULL); |
445 |
greg |
1.25 |
if (buf[0] == '\0' || |
446 |
|
|
index("yY+1tTnN-0fF", buf[0]) == NULL) |
447 |
greg |
1.31 |
return(0); |
448 |
greg |
1.24 |
} |
449 |
greg |
1.25 |
ptr->i = index("yY+1tT", buf[0]) != NULL; |
450 |
greg |
1.31 |
return(1); |
451 |
greg |
1.24 |
case 'C': /* color */ |
452 |
|
|
if (sscanf(str, "%lf %lf %lf", &d0, &d1, &d2) != 3) { |
453 |
|
|
(*dev->comout)(dsc); |
454 |
|
|
sprintf(buf, " (%.6g %.6g %.6g): ", |
455 |
|
|
colval(ptr->C,RED), |
456 |
|
|
colval(ptr->C,GRN), |
457 |
|
|
colval(ptr->C,BLU)); |
458 |
|
|
(*dev->comout)(buf); |
459 |
|
|
(*dev->comin)(buf, NULL); |
460 |
|
|
if (sscanf(buf, "%lf %lf %lf", &d0, &d1, &d2) != 3) |
461 |
greg |
1.31 |
return(0); |
462 |
greg |
1.24 |
} |
463 |
|
|
setcolor(ptr->C, d0, d1, d2); |
464 |
greg |
1.31 |
return(1); |
465 |
greg |
1.24 |
} |
466 |
|
|
} |
467 |
|
|
|
468 |
|
|
|
469 |
greg |
1.1 |
setparam(s) /* get/set program parameter */ |
470 |
|
|
register char *s; |
471 |
|
|
{ |
472 |
|
|
extern int psample; |
473 |
|
|
extern double maxdiff; |
474 |
|
|
extern double minweight; |
475 |
|
|
extern int maxdepth; |
476 |
|
|
extern double dstrsrc; |
477 |
greg |
1.5 |
extern double shadthresh; |
478 |
greg |
1.9 |
extern double shadcert; |
479 |
greg |
1.1 |
extern COLOR ambval; |
480 |
|
|
extern double ambacc; |
481 |
|
|
extern int ambres; |
482 |
|
|
extern int ambdiv; |
483 |
|
|
extern int ambssamp; |
484 |
|
|
extern int ambounce; |
485 |
greg |
2.13 |
extern int directvis; |
486 |
greg |
1.30 |
extern double srcsizerat; |
487 |
greg |
1.23 |
extern int do_irrad; |
488 |
greg |
2.5 |
extern double specjitter; |
489 |
|
|
extern double specthresh; |
490 |
greg |
1.24 |
char buf[128]; |
491 |
greg |
1.1 |
|
492 |
|
|
if (s[0] == '\0') { |
493 |
greg |
1.23 |
(*dev->comout)( |
494 |
greg |
2.5 |
"aa ab ad ar as av b dc di dj ds dt i lr lw ps pt sj st: "); |
495 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
496 |
greg |
1.1 |
s = buf; |
497 |
|
|
} |
498 |
|
|
switch (s[0]) { |
499 |
|
|
case 'l': /* limit */ |
500 |
|
|
switch (s[1]) { |
501 |
|
|
case 'w': /* weight */ |
502 |
greg |
1.24 |
getparam(s+2, "limit weight", 'r', &minweight); |
503 |
greg |
1.1 |
break; |
504 |
|
|
case 'r': /* reflection */ |
505 |
greg |
1.24 |
getparam(s+2, "limit reflection", 'i', &maxdepth); |
506 |
greg |
1.1 |
break; |
507 |
|
|
default: |
508 |
|
|
goto badparam; |
509 |
|
|
} |
510 |
|
|
break; |
511 |
greg |
1.5 |
case 'd': /* direct */ |
512 |
|
|
switch (s[1]) { |
513 |
|
|
case 'j': /* jitter */ |
514 |
greg |
1.24 |
getparam(s+2, "direct jitter", 'r', &dstrsrc); |
515 |
greg |
1.9 |
break; |
516 |
|
|
case 'c': /* certainty */ |
517 |
greg |
1.24 |
getparam(s+2, "direct certainty", 'r', &shadcert); |
518 |
greg |
1.5 |
break; |
519 |
greg |
1.8 |
case 't': /* threshold */ |
520 |
greg |
1.24 |
getparam(s+2, "direct threshold", 'r', &shadthresh); |
521 |
greg |
1.5 |
break; |
522 |
greg |
2.13 |
case 'v': /* visibility */ |
523 |
|
|
getparam(s+2, "direct visibility", |
524 |
|
|
'b', &directvis); |
525 |
greg |
1.30 |
break; |
526 |
|
|
case 's': /* sampling */ |
527 |
|
|
getparam(s+2, "direct sampling", 'r', &srcsizerat); |
528 |
greg |
1.23 |
break; |
529 |
greg |
1.5 |
default: |
530 |
greg |
1.1 |
goto badparam; |
531 |
|
|
} |
532 |
greg |
1.23 |
break; |
533 |
|
|
case 'b': /* black and white */ |
534 |
greg |
1.24 |
getparam(s+1, "black and white", 'b', &greyscale); |
535 |
greg |
1.23 |
break; |
536 |
|
|
case 'i': /* irradiance */ |
537 |
greg |
1.24 |
getparam(s+1, "irradiance", 'b', &do_irrad); |
538 |
greg |
1.1 |
break; |
539 |
|
|
case 'a': /* ambient */ |
540 |
|
|
switch (s[1]) { |
541 |
|
|
case 'v': /* value */ |
542 |
greg |
2.11 |
getparam(s+2, "ambient value", 'C', (COLOR *)ambval); |
543 |
greg |
1.1 |
break; |
544 |
|
|
case 'a': /* accuracy */ |
545 |
greg |
2.17 |
if (getparam(s+2, "ambient accuracy", 'r', &ambacc)) |
546 |
|
|
setambacc(ambacc); |
547 |
greg |
1.1 |
break; |
548 |
|
|
case 'd': /* divisions */ |
549 |
greg |
1.24 |
getparam(s+2, "ambient divisions", 'i', &ambdiv); |
550 |
greg |
1.1 |
break; |
551 |
|
|
case 's': /* samples */ |
552 |
greg |
1.24 |
getparam(s+2, "ambient super-samples", 'i', &ambssamp); |
553 |
greg |
1.1 |
break; |
554 |
|
|
case 'b': /* bounces */ |
555 |
greg |
1.24 |
getparam(s+2, "ambient bounces", 'i', &ambounce); |
556 |
greg |
1.1 |
break; |
557 |
|
|
case 'r': |
558 |
greg |
1.31 |
if (getparam(s+2, "ambient resolution", 'i', &ambres)) |
559 |
greg |
2.8 |
setambres(ambres); |
560 |
greg |
1.1 |
break; |
561 |
|
|
default: |
562 |
|
|
goto badparam; |
563 |
|
|
} |
564 |
|
|
break; |
565 |
greg |
2.5 |
case 'p': /* pixel */ |
566 |
greg |
1.1 |
switch (s[1]) { |
567 |
greg |
2.5 |
case 's': /* sample */ |
568 |
|
|
if (getparam(s+2, "pixel sample", 'i', &psample)) |
569 |
greg |
1.31 |
pdepth = 0; |
570 |
greg |
1.1 |
break; |
571 |
greg |
1.8 |
case 't': /* threshold */ |
572 |
greg |
2.5 |
if (getparam(s+2, "pixel threshold", 'r', &maxdiff)) |
573 |
greg |
1.31 |
pdepth = 0; |
574 |
greg |
2.5 |
break; |
575 |
|
|
default: |
576 |
|
|
goto badparam; |
577 |
|
|
} |
578 |
|
|
break; |
579 |
|
|
case 's': /* specular */ |
580 |
|
|
switch (s[1]) { |
581 |
|
|
case 'j': /* jitter */ |
582 |
|
|
getparam(s+2, "specular jitter", 'r', &specjitter); |
583 |
|
|
break; |
584 |
|
|
case 't': /* threshold */ |
585 |
|
|
getparam(s+2, "specular threshold", 'r', &specthresh); |
586 |
greg |
1.1 |
break; |
587 |
|
|
default: |
588 |
|
|
goto badparam; |
589 |
|
|
} |
590 |
|
|
break; |
591 |
|
|
case '\0': /* nothing */ |
592 |
|
|
break; |
593 |
|
|
default:; |
594 |
|
|
badparam: |
595 |
greg |
1.26 |
*sskip(s) = '\0'; |
596 |
greg |
1.1 |
sprintf(errmsg, "%s: unknown variable", s); |
597 |
|
|
error(COMMAND, errmsg); |
598 |
|
|
break; |
599 |
|
|
} |
600 |
|
|
} |
601 |
|
|
|
602 |
|
|
|
603 |
|
|
traceray(s) /* trace a single ray */ |
604 |
|
|
char *s; |
605 |
|
|
{ |
606 |
|
|
char buf[128]; |
607 |
|
|
int x, y; |
608 |
|
|
RAY thisray; |
609 |
|
|
|
610 |
greg |
2.6 |
if (!sscanvec(s, thisray.rorg) || |
611 |
|
|
!sscanvec(sskip(sskip(sskip(s))), thisray.rdir)) { |
612 |
greg |
1.1 |
|
613 |
|
|
if (dev->getcur == NULL) |
614 |
|
|
return; |
615 |
|
|
(*dev->comout)("Pick ray\n"); |
616 |
|
|
if ((*dev->getcur)(&x, &y) == ABORT) |
617 |
|
|
return; |
618 |
|
|
|
619 |
greg |
1.21 |
if (viewray(thisray.rorg, thisray.rdir, &ourview, |
620 |
|
|
(x+.5)/hresolu, (y+.5)/vresolu) < 0) { |
621 |
|
|
error(COMMAND, "not on image"); |
622 |
|
|
return; |
623 |
|
|
} |
624 |
|
|
|
625 |
greg |
1.1 |
} else if (normalize(thisray.rdir) == 0.0) { |
626 |
|
|
error(COMMAND, "zero ray direction"); |
627 |
|
|
return; |
628 |
|
|
} |
629 |
|
|
|
630 |
|
|
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
631 |
|
|
|
632 |
|
|
rayvalue(&thisray); |
633 |
|
|
|
634 |
|
|
if (thisray.ro == NULL) |
635 |
|
|
(*dev->comout)("ray hit nothing"); |
636 |
|
|
else { |
637 |
|
|
sprintf(buf, "ray hit %s %s \"%s\"", |
638 |
|
|
objptr(thisray.ro->omod)->oname, |
639 |
|
|
ofun[thisray.ro->otype].funame, |
640 |
|
|
thisray.ro->oname); |
641 |
|
|
(*dev->comout)(buf); |
642 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
643 |
greg |
1.1 |
if (thisray.rot >= FHUGE) |
644 |
|
|
(*dev->comout)("at infinity"); |
645 |
|
|
else { |
646 |
|
|
sprintf(buf, "at (%.6g %.6g %.6g)", thisray.rop[0], |
647 |
|
|
thisray.rop[1], thisray.rop[2]); |
648 |
|
|
(*dev->comout)(buf); |
649 |
|
|
} |
650 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
651 |
greg |
1.32 |
sprintf(buf, "value (%.5g %.5g %.5g) (%.1fL)", |
652 |
greg |
1.1 |
colval(thisray.rcol,RED), |
653 |
|
|
colval(thisray.rcol,GRN), |
654 |
greg |
1.32 |
colval(thisray.rcol,BLU), |
655 |
|
|
luminance(thisray.rcol)); |
656 |
greg |
1.1 |
(*dev->comout)(buf); |
657 |
|
|
} |
658 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
659 |
greg |
1.1 |
} |
660 |
|
|
|
661 |
|
|
|
662 |
|
|
writepict(s) /* write the picture to a file */ |
663 |
|
|
char *s; |
664 |
|
|
{ |
665 |
|
|
static char buf[128]; |
666 |
greg |
1.10 |
char *fname; |
667 |
greg |
1.1 |
FILE *fp; |
668 |
|
|
COLR *scanline; |
669 |
|
|
int y; |
670 |
|
|
|
671 |
greg |
2.20 |
while (isspace(*s)) |
672 |
|
|
s++; |
673 |
|
|
if (*s) |
674 |
|
|
atos(buf, sizeof(buf), s); |
675 |
|
|
else if (buf[0] == '\0') { |
676 |
greg |
1.1 |
error(COMMAND, "no file"); |
677 |
|
|
return; |
678 |
|
|
} |
679 |
greg |
1.10 |
if ((fname = getpath(buf, NULL, 0)) == NULL || |
680 |
greg |
1.1 |
(fp = fopen(fname, "w")) == NULL) { |
681 |
|
|
sprintf(errmsg, "cannot open \"%s\"", buf); |
682 |
|
|
error(COMMAND, errmsg); |
683 |
|
|
return; |
684 |
|
|
} |
685 |
greg |
2.12 |
#ifdef MSDOS |
686 |
|
|
setmode(fileno(fp), O_BINARY); |
687 |
|
|
#endif |
688 |
greg |
1.1 |
(*dev->comout)("writing \""); |
689 |
|
|
(*dev->comout)(fname); |
690 |
|
|
(*dev->comout)("\"...\n"); |
691 |
|
|
/* write header */ |
692 |
|
|
fputs(progname, fp); |
693 |
|
|
fprintview(&ourview, fp); |
694 |
greg |
1.29 |
if (octname != NULL) |
695 |
|
|
fprintf(fp, " %s\n", octname); |
696 |
|
|
else |
697 |
|
|
putc('\n', fp); |
698 |
greg |
1.28 |
fprintf(fp, "SOFTWARE= %s\n", VersionID); |
699 |
greg |
1.1 |
if (exposure != 1.0) |
700 |
greg |
1.13 |
fputexpos(exposure, fp); |
701 |
greg |
1.15 |
if (dev->pixaspect != 1.0) |
702 |
|
|
fputaspect(dev->pixaspect, fp); |
703 |
greg |
1.22 |
fputformat(COLRFMT, fp); |
704 |
greg |
1.11 |
putc('\n', fp); |
705 |
greg |
1.33 |
fprtresolu(hresolu, vresolu, fp); |
706 |
greg |
1.1 |
|
707 |
greg |
1.14 |
scanline = (COLR *)malloc(hresolu*sizeof(COLR)); |
708 |
greg |
1.27 |
if (scanline == NULL) { |
709 |
|
|
error(COMMAND, "not enough memory!"); |
710 |
|
|
fclose(fp); |
711 |
|
|
unlink(fname); |
712 |
|
|
return; |
713 |
|
|
} |
714 |
greg |
1.14 |
for (y = vresolu-1; y >= 0; y--) { |
715 |
|
|
getpictcolrs(y, scanline, &ptrunk, hresolu, vresolu); |
716 |
|
|
if (fwritecolrs(scanline, hresolu, fp) < 0) |
717 |
greg |
1.1 |
break; |
718 |
|
|
} |
719 |
greg |
1.27 |
free((char *)scanline); |
720 |
greg |
1.1 |
if (fclose(fp) < 0) |
721 |
|
|
error(COMMAND, "write error"); |
722 |
|
|
} |