1 |
greg |
2.26 |
/* Copyright (c) 1994 Regents of the University of California */ |
2 |
greg |
1.1 |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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#endif |
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/* |
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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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#include "octree.h" |
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#include "otypes.h" |
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#include "rpaint.h" |
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21 |
greg |
1.33 |
#include "resolu.h" |
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23 |
greg |
1.1 |
#include <ctype.h> |
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greg |
2.4 |
#define CTRL(c) ((c)-'@') |
26 |
greg |
1.1 |
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27 |
greg |
2.6 |
#ifdef SMLFLT |
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#define sscanvec(s,v) (sscanf(s,"%f %f %f",v,v+1,v+2)==3) |
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#else |
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#define sscanvec(s,v) (sscanf(s,"%lf %lf %lf",v,v+1,v+2)==3) |
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#endif |
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33 |
greg |
2.18 |
extern char *atos(); |
34 |
greg |
2.6 |
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35 |
greg |
2.21 |
extern FILE *popen(); |
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37 |
greg |
2.20 |
extern char rifname[128]; /* rad input file name */ |
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greg |
2.18 |
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39 |
greg |
1.29 |
extern char VersionID[]; |
40 |
greg |
1.1 |
extern char *progname; |
41 |
greg |
1.29 |
extern char *octname; |
42 |
greg |
1.1 |
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43 |
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getframe(s) /* get a new frame */ |
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char *s; |
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{ |
47 |
greg |
1.12 |
if (getrect(s, &pframe) < 0) |
48 |
greg |
1.1 |
return; |
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pdepth = 0; |
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} |
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52 |
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53 |
greg |
1.12 |
getrepaint(s) /* get area and repaint */ |
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char *s; |
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{ |
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RECT box; |
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if (getrect(s, &box) < 0) |
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return; |
60 |
greg |
1.14 |
paintrect(&ptrunk, 0, 0, hresolu, vresolu, &box); |
61 |
greg |
1.12 |
} |
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63 |
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64 |
greg |
1.1 |
getview(s) /* get/show view parameters */ |
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char *s; |
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{ |
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FILE *fp; |
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char buf[128]; |
69 |
greg |
1.10 |
char *fname; |
70 |
greg |
1.3 |
int change = 0; |
71 |
greg |
1.1 |
VIEW nv; |
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73 |
greg |
2.9 |
while (isspace(*s)) |
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s++; |
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if (*s == '-') { /* command line parameters */ |
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copystruct(&nv, &ourview); |
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if (sscanview(&nv, s)) |
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newview(&nv); |
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else |
80 |
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error(COMMAND, "bad view option(s)"); |
81 |
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return; |
82 |
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} |
83 |
greg |
1.1 |
if (sscanf(s, "%s", buf) == 1) { /* write parameters to a file */ |
84 |
greg |
1.10 |
if ((fname = getpath(buf, NULL, 0)) == NULL || |
85 |
greg |
1.1 |
(fp = fopen(fname, "a")) == NULL) { |
86 |
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sprintf(errmsg, "cannot open \"%s\"", buf); |
87 |
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error(COMMAND, errmsg); |
88 |
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return; |
89 |
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} |
90 |
greg |
1.2 |
fputs(progname, fp); |
91 |
greg |
1.1 |
fprintview(&ourview, fp); |
92 |
greg |
1.19 |
fputs(sskip(s), fp); |
93 |
greg |
2.18 |
putc('\n', fp); |
94 |
greg |
1.1 |
fclose(fp); |
95 |
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return; |
96 |
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} |
97 |
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sprintf(buf, "view type (%c): ", ourview.type); |
98 |
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(*dev->comout)(buf); |
99 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
100 |
greg |
2.4 |
if (buf[0] == CTRL('C')) return; |
101 |
greg |
1.3 |
if (buf[0] && buf[0] != ourview.type) { |
102 |
greg |
1.1 |
nv.type = buf[0]; |
103 |
greg |
1.3 |
change++; |
104 |
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} else |
105 |
greg |
1.1 |
nv.type = ourview.type; |
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sprintf(buf, "view point (%.6g %.6g %.6g): ", |
107 |
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ourview.vp[0], ourview.vp[1], ourview.vp[2]); |
108 |
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(*dev->comout)(buf); |
109 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
110 |
greg |
2.4 |
if (buf[0] == CTRL('C')) return; |
111 |
greg |
2.6 |
if (sscanvec(buf, nv.vp)) |
112 |
greg |
1.3 |
change++; |
113 |
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else |
114 |
greg |
1.1 |
VCOPY(nv.vp, ourview.vp); |
115 |
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sprintf(buf, "view direction (%.6g %.6g %.6g): ", |
116 |
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ourview.vdir[0], ourview.vdir[1], ourview.vdir[2]); |
117 |
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(*dev->comout)(buf); |
118 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
119 |
greg |
2.4 |
if (buf[0] == CTRL('C')) return; |
120 |
greg |
2.6 |
if (sscanvec(buf, nv.vdir)) |
121 |
greg |
1.3 |
change++; |
122 |
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else |
123 |
greg |
1.1 |
VCOPY(nv.vdir, ourview.vdir); |
124 |
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sprintf(buf, "view up (%.6g %.6g %.6g): ", |
125 |
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ourview.vup[0], ourview.vup[1], ourview.vup[2]); |
126 |
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(*dev->comout)(buf); |
127 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
128 |
greg |
2.4 |
if (buf[0] == CTRL('C')) return; |
129 |
greg |
2.6 |
if (sscanvec(buf, nv.vup)) |
130 |
greg |
1.3 |
change++; |
131 |
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else |
132 |
greg |
1.1 |
VCOPY(nv.vup, ourview.vup); |
133 |
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sprintf(buf, "view horiz and vert size (%.6g %.6g): ", |
134 |
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ourview.horiz, ourview.vert); |
135 |
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(*dev->comout)(buf); |
136 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
137 |
greg |
2.4 |
if (buf[0] == CTRL('C')) return; |
138 |
greg |
1.3 |
if (sscanf(buf, "%lf %lf", &nv.horiz, &nv.vert) == 2) |
139 |
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change++; |
140 |
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else { |
141 |
greg |
1.1 |
nv.horiz = ourview.horiz; nv.vert = ourview.vert; |
142 |
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} |
143 |
greg |
2.26 |
sprintf(buf, "fore and aft clipping plane (%.6g %.6g): ", |
144 |
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ourview.vfore, ourview.vaft); |
145 |
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(*dev->comout)(buf); |
146 |
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(*dev->comin)(buf, NULL); |
147 |
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if (buf[0] == CTRL('C')) return; |
148 |
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if (sscanf(buf, "%lf %lf", &nv.vfore, &nv.vaft) == 2) |
149 |
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change++; |
150 |
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else { |
151 |
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nv.vfore = ourview.vfore; nv.vaft = ourview.vaft; |
152 |
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} |
153 |
greg |
1.14 |
sprintf(buf, "view shift and lift (%.6g %.6g): ", |
154 |
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ourview.hoff, ourview.voff); |
155 |
greg |
1.1 |
(*dev->comout)(buf); |
156 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
157 |
greg |
2.4 |
if (buf[0] == CTRL('C')) return; |
158 |
greg |
1.14 |
if (sscanf(buf, "%lf %lf", &nv.hoff, &nv.voff) == 2) |
159 |
greg |
1.3 |
change++; |
160 |
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else { |
161 |
greg |
1.14 |
nv.hoff = ourview.hoff; nv.voff = ourview.voff; |
162 |
greg |
1.1 |
} |
163 |
greg |
1.3 |
if (change) |
164 |
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newview(&nv); |
165 |
greg |
1.1 |
} |
166 |
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167 |
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168 |
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lastview(s) /* return to a previous view */ |
169 |
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char *s; |
170 |
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{ |
171 |
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char buf[128]; |
172 |
greg |
1.10 |
char *fname; |
173 |
greg |
1.1 |
int success; |
174 |
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VIEW nv; |
175 |
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176 |
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if (sscanf(s, "%s", buf) == 1) { /* get parameters from a file */ |
177 |
greg |
1.17 |
copystruct(&nv, &stdview); |
178 |
greg |
2.19 |
if ((fname = getpath(buf, "", R_OK)) == NULL || |
179 |
greg |
1.33 |
(success = viewfile(fname, &nv, NULL)) == -1) { |
180 |
greg |
1.1 |
sprintf(errmsg, "cannot open \"%s\"", buf); |
181 |
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error(COMMAND, errmsg); |
182 |
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return; |
183 |
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} |
184 |
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if (!success) |
185 |
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error(COMMAND, "wrong file format"); |
186 |
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else |
187 |
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newview(&nv); |
188 |
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return; |
189 |
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} |
190 |
greg |
1.20 |
if (oldview.type == 0) { /* no old view! */ |
191 |
greg |
1.1 |
error(COMMAND, "no previous view"); |
192 |
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return; |
193 |
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} |
194 |
greg |
1.17 |
copystruct(&nv, &ourview); |
195 |
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copystruct(&ourview, &oldview); |
196 |
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copystruct(&oldview, &nv); |
197 |
greg |
1.1 |
newimage(); |
198 |
greg |
2.18 |
} |
199 |
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200 |
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201 |
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saveview(s) /* save view to rad file */ |
202 |
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char *s; |
203 |
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{ |
204 |
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char view[64]; |
205 |
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char *fname; |
206 |
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FILE *fp; |
207 |
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208 |
greg |
2.19 |
if (*atos(view, sizeof(view), s)) { |
209 |
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if (isint(view)) { |
210 |
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error(COMMAND, "cannot write view by number"); |
211 |
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return; |
212 |
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} |
213 |
greg |
2.18 |
s = sskip(s); |
214 |
greg |
2.19 |
} |
215 |
greg |
2.20 |
while (isspace(*s)) |
216 |
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s++; |
217 |
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if (*s) |
218 |
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atos(rifname, sizeof(rifname), s); |
219 |
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else if (rifname[0] == '\0') { |
220 |
greg |
2.18 |
error(COMMAND, "no previous rad file"); |
221 |
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return; |
222 |
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} |
223 |
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if ((fname = getpath(rifname, NULL, 0)) == NULL || |
224 |
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(fp = fopen(fname, "a")) == NULL) { |
225 |
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sprintf(errmsg, "cannot open \"%s\"", rifname); |
226 |
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error(COMMAND, errmsg); |
227 |
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return; |
228 |
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} |
229 |
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fputs("view= ", fp); |
230 |
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fputs(view, fp); |
231 |
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fprintview(&ourview, fp); |
232 |
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putc('\n', fp); |
233 |
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fclose(fp); |
234 |
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} |
235 |
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236 |
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237 |
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loadview(s) /* load view from rad file */ |
238 |
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char *s; |
239 |
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{ |
240 |
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char buf[512]; |
241 |
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char *fname; |
242 |
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FILE *fp; |
243 |
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VIEW nv; |
244 |
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245 |
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strcpy(buf, "rad -n -s -V -v "); |
246 |
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if (sscanf(s, "%s", buf+strlen(buf)) == 1) |
247 |
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s = sskip(s); |
248 |
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else |
249 |
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strcat(buf, "1"); |
250 |
greg |
2.20 |
if (*s) |
251 |
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atos(rifname, sizeof(rifname), s); |
252 |
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else if (rifname[0] == '\0') { |
253 |
greg |
2.18 |
error(COMMAND, "no previous rad file"); |
254 |
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return; |
255 |
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} |
256 |
greg |
2.19 |
if ((fname = getpath(rifname, "", R_OK)) == NULL) { |
257 |
greg |
2.18 |
sprintf(errmsg, "cannot access \"%s\"", rifname); |
258 |
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error(COMMAND, errmsg); |
259 |
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return; |
260 |
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} |
261 |
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sprintf(buf+strlen(buf), " %s", fname); |
262 |
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if ((fp = popen(buf, "r")) == NULL) { |
263 |
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error(COMMAND, "cannot run rad"); |
264 |
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return; |
265 |
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} |
266 |
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buf[0] = '\0'; |
267 |
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fgets(buf, sizeof(buf), fp); |
268 |
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pclose(fp); |
269 |
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copystruct(&nv, &stdview); |
270 |
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if (!sscanview(&nv, buf)) { |
271 |
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error(COMMAND, "rad error -- no such view?"); |
272 |
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return; |
273 |
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} |
274 |
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newview(&nv); |
275 |
greg |
1.1 |
} |
276 |
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277 |
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278 |
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getaim(s) /* aim camera */ |
279 |
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char *s; |
280 |
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{ |
281 |
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double zfact; |
282 |
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VIEW nv; |
283 |
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284 |
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if (getinterest(s, 1, nv.vdir, &zfact) < 0) |
285 |
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return; |
286 |
greg |
1.21 |
nv.type = ourview.type; |
287 |
greg |
1.1 |
VCOPY(nv.vp, ourview.vp); |
288 |
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VCOPY(nv.vup, ourview.vup); |
289 |
greg |
2.28 |
nv.horiz = ourview.horiz; nv.vert = ourview.vert; |
290 |
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nv.vfore = ourview.vfore; nv.vaft = ourview.vaft; |
291 |
greg |
1.14 |
nv.hoff = ourview.hoff; nv.voff = ourview.voff; |
292 |
greg |
1.21 |
zoomview(&nv, zfact); |
293 |
greg |
1.1 |
newview(&nv); |
294 |
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} |
295 |
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296 |
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297 |
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getmove(s) /* move camera */ |
298 |
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char *s; |
299 |
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{ |
300 |
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FVECT vc; |
301 |
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double mag; |
302 |
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303 |
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if (getinterest(s, 0, vc, &mag) < 0) |
304 |
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return; |
305 |
greg |
1.4 |
moveview(0.0, 0.0, mag, vc); |
306 |
greg |
1.1 |
} |
307 |
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|
308 |
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|
309 |
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getrotate(s) /* rotate camera */ |
310 |
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char *s; |
311 |
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{ |
312 |
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VIEW nv; |
313 |
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FVECT v1; |
314 |
greg |
1.4 |
double angle, elev, zfact; |
315 |
greg |
1.1 |
|
316 |
greg |
1.4 |
elev = 0.0; zfact = 1.0; |
317 |
|
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if (sscanf(s, "%lf %lf %lf", &angle, &elev, &zfact) < 1) { |
318 |
greg |
1.1 |
error(COMMAND, "missing angle"); |
319 |
|
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return; |
320 |
|
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} |
321 |
greg |
1.21 |
nv.type = ourview.type; |
322 |
greg |
1.1 |
VCOPY(nv.vp, ourview.vp); |
323 |
|
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VCOPY(nv.vup, ourview.vup); |
324 |
greg |
1.14 |
nv.hoff = ourview.hoff; nv.voff = ourview.voff; |
325 |
greg |
2.28 |
nv.vfore = ourview.vfore; nv.vaft = ourview.vaft; |
326 |
greg |
1.1 |
spinvector(nv.vdir, ourview.vdir, ourview.vup, angle*(PI/180.)); |
327 |
|
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if (elev != 0.0) { |
328 |
|
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fcross(v1, nv.vdir, ourview.vup); |
329 |
|
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normalize(v1); |
330 |
|
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spinvector(nv.vdir, nv.vdir, v1, elev*(PI/180.)); |
331 |
|
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} |
332 |
greg |
1.21 |
nv.horiz = ourview.horiz; nv.vert = ourview.vert; |
333 |
|
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zoomview(&nv, zfact); |
334 |
greg |
1.1 |
newview(&nv); |
335 |
|
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} |
336 |
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|
337 |
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|
338 |
|
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getpivot(s) /* pivot viewpoint */ |
339 |
|
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register char *s; |
340 |
|
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{ |
341 |
|
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FVECT vc; |
342 |
greg |
1.4 |
double angle, elev, mag; |
343 |
greg |
1.1 |
|
344 |
greg |
1.4 |
elev = 0.0; |
345 |
|
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if (sscanf(s, "%lf %lf", &angle, &elev) < 1) { |
346 |
greg |
1.1 |
error(COMMAND, "missing angle"); |
347 |
|
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return; |
348 |
|
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} |
349 |
greg |
1.4 |
if (getinterest(sskip(sskip(s)), 0, vc, &mag) < 0) |
350 |
greg |
1.1 |
return; |
351 |
greg |
1.4 |
moveview(angle, elev, mag, vc); |
352 |
greg |
1.1 |
} |
353 |
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|
354 |
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|
355 |
|
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getexposure(s) /* get new exposure */ |
356 |
|
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char *s; |
357 |
|
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{ |
358 |
|
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char buf[128]; |
359 |
|
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register char *cp; |
360 |
|
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RECT r; |
361 |
|
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int x, y; |
362 |
greg |
2.16 |
register PNODE *p = &ptrunk; |
363 |
|
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int adapt = 0; |
364 |
|
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double e = 1.0; |
365 |
greg |
2.25 |
|
366 |
greg |
1.1 |
for (cp = s; isspace(*cp); cp++) |
367 |
|
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; |
368 |
greg |
2.16 |
if (*cp == '@') { |
369 |
|
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adapt++; |
370 |
greg |
2.25 |
while (isspace(*++cp)) |
371 |
|
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; |
372 |
greg |
2.16 |
} |
373 |
greg |
1.1 |
if (*cp == '\0') { /* normalize to point */ |
374 |
|
|
if (dev->getcur == NULL) |
375 |
|
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return; |
376 |
|
|
(*dev->comout)("Pick point for exposure\n"); |
377 |
|
|
if ((*dev->getcur)(&x, &y) == ABORT) |
378 |
|
|
return; |
379 |
|
|
r.l = r.d = 0; |
380 |
greg |
1.14 |
r.r = hresolu; r.u = vresolu; |
381 |
greg |
1.1 |
p = findrect(x, y, &ptrunk, &r, -1); |
382 |
|
|
} else { |
383 |
|
|
if (*cp == '=') { /* absolute setting */ |
384 |
|
|
p = NULL; |
385 |
|
|
e = 1.0/exposure; |
386 |
|
|
for (cp++; isspace(*cp); cp++) |
387 |
|
|
; |
388 |
|
|
if (*cp == '\0') { /* interactive */ |
389 |
greg |
2.15 |
sprintf(buf, "exposure (%f): ", exposure); |
390 |
greg |
1.1 |
(*dev->comout)(buf); |
391 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
392 |
greg |
1.1 |
for (cp = buf; isspace(*cp); cp++) |
393 |
|
|
; |
394 |
|
|
if (*cp == '\0') |
395 |
|
|
return; |
396 |
|
|
} |
397 |
|
|
} |
398 |
|
|
if (*cp == '+' || *cp == '-') /* f-stops */ |
399 |
|
|
e *= pow(2.0, atof(cp)); |
400 |
|
|
else /* multiplier */ |
401 |
|
|
e *= atof(cp); |
402 |
|
|
} |
403 |
|
|
if (p != NULL) { /* relative setting */ |
404 |
greg |
2.14 |
if (bright(p->v) < 1e-15) { |
405 |
greg |
1.1 |
error(COMMAND, "cannot normalize to zero"); |
406 |
|
|
return; |
407 |
|
|
} |
408 |
greg |
2.16 |
if (adapt) |
409 |
|
|
e *= 106./pow(1.219+pow(luminance(p->v)/exposure,.4),2.5)/exposure; |
410 |
|
|
else |
411 |
|
|
e *= 0.5 / bright(p->v); |
412 |
greg |
1.1 |
} |
413 |
|
|
if (e <= FTINY || fabs(1.0 - e) <= FTINY) |
414 |
|
|
return; |
415 |
|
|
scalepict(&ptrunk, e); |
416 |
|
|
exposure *= e; |
417 |
|
|
redraw(); |
418 |
|
|
} |
419 |
|
|
|
420 |
|
|
|
421 |
greg |
1.24 |
getparam(str, dsc, typ, ptr) /* get variable from user */ |
422 |
|
|
char *str, *dsc; |
423 |
|
|
int typ; |
424 |
|
|
register union {int i; double d; COLOR C;} *ptr; |
425 |
|
|
{ |
426 |
greg |
1.25 |
extern char *index(); |
427 |
greg |
1.24 |
int i0; |
428 |
|
|
double d0, d1, d2; |
429 |
|
|
char buf[48]; |
430 |
|
|
|
431 |
|
|
switch (typ) { |
432 |
|
|
case 'i': /* integer */ |
433 |
|
|
if (sscanf(str, "%d", &i0) != 1) { |
434 |
|
|
(*dev->comout)(dsc); |
435 |
|
|
sprintf(buf, " (%d): ", ptr->i); |
436 |
|
|
(*dev->comout)(buf); |
437 |
|
|
(*dev->comin)(buf, NULL); |
438 |
|
|
if (sscanf(buf, "%d", &i0) != 1) |
439 |
greg |
1.31 |
return(0); |
440 |
greg |
1.24 |
} |
441 |
|
|
ptr->i = i0; |
442 |
greg |
1.31 |
return(1); |
443 |
greg |
1.24 |
case 'r': /* real */ |
444 |
|
|
if (sscanf(str, "%lf", &d0) != 1) { |
445 |
|
|
(*dev->comout)(dsc); |
446 |
|
|
sprintf(buf, " (%.6g): ", ptr->d); |
447 |
|
|
(*dev->comout)(buf); |
448 |
|
|
(*dev->comin)(buf, NULL); |
449 |
|
|
if (sscanf(buf, "%lf", &d0) != 1) |
450 |
greg |
1.31 |
return(0); |
451 |
greg |
1.24 |
} |
452 |
|
|
ptr->d = d0; |
453 |
greg |
1.31 |
return(1); |
454 |
greg |
1.24 |
case 'b': /* boolean */ |
455 |
|
|
if (sscanf(str, "%1s", buf) != 1) { |
456 |
|
|
(*dev->comout)(dsc); |
457 |
greg |
2.2 |
sprintf(buf, "? (%c): ", ptr->i ? 'y' : 'n'); |
458 |
greg |
1.24 |
(*dev->comout)(buf); |
459 |
|
|
(*dev->comin)(buf, NULL); |
460 |
greg |
1.25 |
if (buf[0] == '\0' || |
461 |
|
|
index("yY+1tTnN-0fF", buf[0]) == NULL) |
462 |
greg |
1.31 |
return(0); |
463 |
greg |
1.24 |
} |
464 |
greg |
1.25 |
ptr->i = index("yY+1tT", buf[0]) != NULL; |
465 |
greg |
1.31 |
return(1); |
466 |
greg |
1.24 |
case 'C': /* color */ |
467 |
|
|
if (sscanf(str, "%lf %lf %lf", &d0, &d1, &d2) != 3) { |
468 |
|
|
(*dev->comout)(dsc); |
469 |
|
|
sprintf(buf, " (%.6g %.6g %.6g): ", |
470 |
|
|
colval(ptr->C,RED), |
471 |
|
|
colval(ptr->C,GRN), |
472 |
|
|
colval(ptr->C,BLU)); |
473 |
|
|
(*dev->comout)(buf); |
474 |
|
|
(*dev->comin)(buf, NULL); |
475 |
|
|
if (sscanf(buf, "%lf %lf %lf", &d0, &d1, &d2) != 3) |
476 |
greg |
1.31 |
return(0); |
477 |
greg |
1.24 |
} |
478 |
|
|
setcolor(ptr->C, d0, d1, d2); |
479 |
greg |
1.31 |
return(1); |
480 |
greg |
1.24 |
} |
481 |
|
|
} |
482 |
|
|
|
483 |
|
|
|
484 |
greg |
1.1 |
setparam(s) /* get/set program parameter */ |
485 |
|
|
register char *s; |
486 |
|
|
{ |
487 |
|
|
extern int psample; |
488 |
|
|
extern double maxdiff; |
489 |
|
|
extern double minweight; |
490 |
|
|
extern int maxdepth; |
491 |
|
|
extern double dstrsrc; |
492 |
greg |
1.5 |
extern double shadthresh; |
493 |
greg |
1.9 |
extern double shadcert; |
494 |
greg |
1.1 |
extern COLOR ambval; |
495 |
|
|
extern double ambacc; |
496 |
|
|
extern int ambres; |
497 |
|
|
extern int ambdiv; |
498 |
|
|
extern int ambssamp; |
499 |
|
|
extern int ambounce; |
500 |
greg |
2.13 |
extern int directvis; |
501 |
greg |
1.30 |
extern double srcsizerat; |
502 |
greg |
1.23 |
extern int do_irrad; |
503 |
greg |
2.5 |
extern double specjitter; |
504 |
|
|
extern double specthresh; |
505 |
greg |
2.27 |
extern int backvis; |
506 |
greg |
1.24 |
char buf[128]; |
507 |
greg |
1.1 |
|
508 |
|
|
if (s[0] == '\0') { |
509 |
greg |
1.23 |
(*dev->comout)( |
510 |
greg |
2.27 |
"aa ab ad ar as av b dc di dj ds dt i lr lw ps pt sj st bv: "); |
511 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
512 |
greg |
1.1 |
s = buf; |
513 |
|
|
} |
514 |
|
|
switch (s[0]) { |
515 |
|
|
case 'l': /* limit */ |
516 |
|
|
switch (s[1]) { |
517 |
|
|
case 'w': /* weight */ |
518 |
greg |
1.24 |
getparam(s+2, "limit weight", 'r', &minweight); |
519 |
greg |
1.1 |
break; |
520 |
|
|
case 'r': /* reflection */ |
521 |
greg |
1.24 |
getparam(s+2, "limit reflection", 'i', &maxdepth); |
522 |
greg |
1.1 |
break; |
523 |
|
|
default: |
524 |
|
|
goto badparam; |
525 |
|
|
} |
526 |
|
|
break; |
527 |
greg |
1.5 |
case 'd': /* direct */ |
528 |
|
|
switch (s[1]) { |
529 |
|
|
case 'j': /* jitter */ |
530 |
greg |
1.24 |
getparam(s+2, "direct jitter", 'r', &dstrsrc); |
531 |
greg |
1.9 |
break; |
532 |
|
|
case 'c': /* certainty */ |
533 |
greg |
1.24 |
getparam(s+2, "direct certainty", 'r', &shadcert); |
534 |
greg |
1.5 |
break; |
535 |
greg |
1.8 |
case 't': /* threshold */ |
536 |
greg |
1.24 |
getparam(s+2, "direct threshold", 'r', &shadthresh); |
537 |
greg |
1.5 |
break; |
538 |
greg |
2.13 |
case 'v': /* visibility */ |
539 |
|
|
getparam(s+2, "direct visibility", |
540 |
|
|
'b', &directvis); |
541 |
greg |
1.30 |
break; |
542 |
|
|
case 's': /* sampling */ |
543 |
|
|
getparam(s+2, "direct sampling", 'r', &srcsizerat); |
544 |
greg |
1.23 |
break; |
545 |
greg |
1.5 |
default: |
546 |
greg |
1.1 |
goto badparam; |
547 |
|
|
} |
548 |
greg |
1.23 |
break; |
549 |
greg |
2.27 |
case 'b': /* back faces or black and white */ |
550 |
|
|
switch (s[1]) { |
551 |
|
|
case 'v': /* back face visibility */ |
552 |
|
|
getparam(s+2, "back face visibility", 'b', &backvis); |
553 |
|
|
break; |
554 |
|
|
case '\0': /* black and white */ |
555 |
|
|
case 'y': case 'Y': case 't': case 'T': case '1': case '+': |
556 |
|
|
case 'n': case 'N': case 'f': case 'F': case '0': case '-': |
557 |
|
|
getparam(s+1, "black and white", 'b', &greyscale); |
558 |
|
|
break; |
559 |
|
|
default: |
560 |
|
|
goto badparam; |
561 |
|
|
} |
562 |
greg |
1.23 |
break; |
563 |
|
|
case 'i': /* irradiance */ |
564 |
greg |
1.24 |
getparam(s+1, "irradiance", 'b', &do_irrad); |
565 |
greg |
1.1 |
break; |
566 |
|
|
case 'a': /* ambient */ |
567 |
|
|
switch (s[1]) { |
568 |
|
|
case 'v': /* value */ |
569 |
greg |
2.11 |
getparam(s+2, "ambient value", 'C', (COLOR *)ambval); |
570 |
greg |
1.1 |
break; |
571 |
|
|
case 'a': /* accuracy */ |
572 |
greg |
2.17 |
if (getparam(s+2, "ambient accuracy", 'r', &ambacc)) |
573 |
|
|
setambacc(ambacc); |
574 |
greg |
1.1 |
break; |
575 |
|
|
case 'd': /* divisions */ |
576 |
greg |
1.24 |
getparam(s+2, "ambient divisions", 'i', &ambdiv); |
577 |
greg |
1.1 |
break; |
578 |
|
|
case 's': /* samples */ |
579 |
greg |
1.24 |
getparam(s+2, "ambient super-samples", 'i', &ambssamp); |
580 |
greg |
1.1 |
break; |
581 |
|
|
case 'b': /* bounces */ |
582 |
greg |
1.24 |
getparam(s+2, "ambient bounces", 'i', &ambounce); |
583 |
greg |
1.1 |
break; |
584 |
|
|
case 'r': |
585 |
greg |
1.31 |
if (getparam(s+2, "ambient resolution", 'i', &ambres)) |
586 |
greg |
2.8 |
setambres(ambres); |
587 |
greg |
1.1 |
break; |
588 |
|
|
default: |
589 |
|
|
goto badparam; |
590 |
|
|
} |
591 |
|
|
break; |
592 |
greg |
2.5 |
case 'p': /* pixel */ |
593 |
greg |
1.1 |
switch (s[1]) { |
594 |
greg |
2.5 |
case 's': /* sample */ |
595 |
|
|
if (getparam(s+2, "pixel sample", 'i', &psample)) |
596 |
greg |
1.31 |
pdepth = 0; |
597 |
greg |
1.1 |
break; |
598 |
greg |
1.8 |
case 't': /* threshold */ |
599 |
greg |
2.5 |
if (getparam(s+2, "pixel threshold", 'r', &maxdiff)) |
600 |
greg |
1.31 |
pdepth = 0; |
601 |
greg |
2.5 |
break; |
602 |
|
|
default: |
603 |
|
|
goto badparam; |
604 |
|
|
} |
605 |
|
|
break; |
606 |
|
|
case 's': /* specular */ |
607 |
|
|
switch (s[1]) { |
608 |
|
|
case 'j': /* jitter */ |
609 |
|
|
getparam(s+2, "specular jitter", 'r', &specjitter); |
610 |
|
|
break; |
611 |
|
|
case 't': /* threshold */ |
612 |
|
|
getparam(s+2, "specular threshold", 'r', &specthresh); |
613 |
greg |
1.1 |
break; |
614 |
|
|
default: |
615 |
|
|
goto badparam; |
616 |
|
|
} |
617 |
|
|
break; |
618 |
|
|
case '\0': /* nothing */ |
619 |
|
|
break; |
620 |
|
|
default:; |
621 |
|
|
badparam: |
622 |
greg |
1.26 |
*sskip(s) = '\0'; |
623 |
greg |
1.1 |
sprintf(errmsg, "%s: unknown variable", s); |
624 |
|
|
error(COMMAND, errmsg); |
625 |
|
|
break; |
626 |
|
|
} |
627 |
|
|
} |
628 |
|
|
|
629 |
|
|
|
630 |
|
|
traceray(s) /* trace a single ray */ |
631 |
|
|
char *s; |
632 |
|
|
{ |
633 |
|
|
char buf[128]; |
634 |
|
|
int x, y; |
635 |
|
|
RAY thisray; |
636 |
|
|
|
637 |
greg |
2.26 |
thisray.rmax = 0.0; |
638 |
|
|
|
639 |
greg |
2.6 |
if (!sscanvec(s, thisray.rorg) || |
640 |
|
|
!sscanvec(sskip(sskip(sskip(s))), thisray.rdir)) { |
641 |
greg |
1.1 |
|
642 |
|
|
if (dev->getcur == NULL) |
643 |
|
|
return; |
644 |
|
|
(*dev->comout)("Pick ray\n"); |
645 |
|
|
if ((*dev->getcur)(&x, &y) == ABORT) |
646 |
|
|
return; |
647 |
|
|
|
648 |
greg |
2.26 |
if ((thisray.rmax = viewray(thisray.rorg, thisray.rdir, |
649 |
|
|
&ourview, (x+.5)/hresolu, (y+.5)/vresolu)) < -FTINY) { |
650 |
greg |
1.21 |
error(COMMAND, "not on image"); |
651 |
|
|
return; |
652 |
|
|
} |
653 |
|
|
|
654 |
greg |
1.1 |
} else if (normalize(thisray.rdir) == 0.0) { |
655 |
|
|
error(COMMAND, "zero ray direction"); |
656 |
|
|
return; |
657 |
|
|
} |
658 |
|
|
|
659 |
|
|
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
660 |
|
|
|
661 |
|
|
rayvalue(&thisray); |
662 |
|
|
|
663 |
|
|
if (thisray.ro == NULL) |
664 |
|
|
(*dev->comout)("ray hit nothing"); |
665 |
|
|
else { |
666 |
greg |
2.23 |
sprintf(buf, "ray hit %s%s %s \"%s\"", |
667 |
|
|
thisray.rod < 0.0 ? "back of " : "", |
668 |
greg |
2.22 |
thisray.ro->omod == OVOID ? VOIDID : |
669 |
|
|
objptr(thisray.ro->omod)->oname, |
670 |
greg |
1.1 |
ofun[thisray.ro->otype].funame, |
671 |
|
|
thisray.ro->oname); |
672 |
|
|
(*dev->comout)(buf); |
673 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
674 |
greg |
1.1 |
if (thisray.rot >= FHUGE) |
675 |
|
|
(*dev->comout)("at infinity"); |
676 |
|
|
else { |
677 |
|
|
sprintf(buf, "at (%.6g %.6g %.6g)", thisray.rop[0], |
678 |
|
|
thisray.rop[1], thisray.rop[2]); |
679 |
|
|
(*dev->comout)(buf); |
680 |
|
|
} |
681 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
682 |
greg |
1.32 |
sprintf(buf, "value (%.5g %.5g %.5g) (%.1fL)", |
683 |
greg |
1.1 |
colval(thisray.rcol,RED), |
684 |
|
|
colval(thisray.rcol,GRN), |
685 |
greg |
1.32 |
colval(thisray.rcol,BLU), |
686 |
|
|
luminance(thisray.rcol)); |
687 |
greg |
1.1 |
(*dev->comout)(buf); |
688 |
|
|
} |
689 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
690 |
greg |
1.1 |
} |
691 |
|
|
|
692 |
|
|
|
693 |
|
|
writepict(s) /* write the picture to a file */ |
694 |
|
|
char *s; |
695 |
|
|
{ |
696 |
|
|
static char buf[128]; |
697 |
greg |
1.10 |
char *fname; |
698 |
greg |
1.1 |
FILE *fp; |
699 |
|
|
COLR *scanline; |
700 |
|
|
int y; |
701 |
|
|
|
702 |
greg |
2.20 |
while (isspace(*s)) |
703 |
|
|
s++; |
704 |
|
|
if (*s) |
705 |
|
|
atos(buf, sizeof(buf), s); |
706 |
|
|
else if (buf[0] == '\0') { |
707 |
greg |
1.1 |
error(COMMAND, "no file"); |
708 |
|
|
return; |
709 |
|
|
} |
710 |
greg |
1.10 |
if ((fname = getpath(buf, NULL, 0)) == NULL || |
711 |
greg |
1.1 |
(fp = fopen(fname, "w")) == NULL) { |
712 |
|
|
sprintf(errmsg, "cannot open \"%s\"", buf); |
713 |
|
|
error(COMMAND, errmsg); |
714 |
|
|
return; |
715 |
|
|
} |
716 |
greg |
2.12 |
#ifdef MSDOS |
717 |
|
|
setmode(fileno(fp), O_BINARY); |
718 |
|
|
#endif |
719 |
greg |
1.1 |
(*dev->comout)("writing \""); |
720 |
|
|
(*dev->comout)(fname); |
721 |
|
|
(*dev->comout)("\"...\n"); |
722 |
|
|
/* write header */ |
723 |
greg |
2.24 |
newheader("RADIANCE", fp); |
724 |
greg |
1.1 |
fputs(progname, fp); |
725 |
|
|
fprintview(&ourview, fp); |
726 |
greg |
1.29 |
if (octname != NULL) |
727 |
|
|
fprintf(fp, " %s\n", octname); |
728 |
|
|
else |
729 |
|
|
putc('\n', fp); |
730 |
greg |
1.28 |
fprintf(fp, "SOFTWARE= %s\n", VersionID); |
731 |
greg |
1.1 |
if (exposure != 1.0) |
732 |
greg |
1.13 |
fputexpos(exposure, fp); |
733 |
greg |
1.15 |
if (dev->pixaspect != 1.0) |
734 |
|
|
fputaspect(dev->pixaspect, fp); |
735 |
greg |
1.22 |
fputformat(COLRFMT, fp); |
736 |
greg |
1.11 |
putc('\n', fp); |
737 |
greg |
1.33 |
fprtresolu(hresolu, vresolu, fp); |
738 |
greg |
1.1 |
|
739 |
greg |
1.14 |
scanline = (COLR *)malloc(hresolu*sizeof(COLR)); |
740 |
greg |
1.27 |
if (scanline == NULL) { |
741 |
|
|
error(COMMAND, "not enough memory!"); |
742 |
|
|
fclose(fp); |
743 |
|
|
unlink(fname); |
744 |
|
|
return; |
745 |
|
|
} |
746 |
greg |
1.14 |
for (y = vresolu-1; y >= 0; y--) { |
747 |
|
|
getpictcolrs(y, scanline, &ptrunk, hresolu, vresolu); |
748 |
|
|
if (fwritecolrs(scanline, hresolu, fp) < 0) |
749 |
greg |
1.1 |
break; |
750 |
|
|
} |
751 |
greg |
1.27 |
free((char *)scanline); |
752 |
greg |
1.1 |
if (fclose(fp) < 0) |
753 |
|
|
error(COMMAND, "write error"); |
754 |
|
|
} |