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root/radiance/ray/src/gen/mkillum3.c
Revision: 2.7
Committed: Sat Feb 22 02:07:24 2003 UTC (21 years, 1 month ago) by greg
Content type: text/plain
Branch: MAIN
Changes since 2.6: +4 -7 lines
Log Message:
Changes and check-in for 3.5 release
Includes new source files and modifications not recorded for many years
See ray/doc/notes/ReleaseNotes for notes between 3.1 and 3.5 release

File Contents

# User Rev Content
1 greg 1.1 #ifndef lint
2 greg 2.7 static const char RCSid[] = "$Id$";
3 greg 1.1 #endif
4     /*
5     * Routines to print mkillum objects
6     */
7    
8     #include "mkillum.h"
9    
10 greg 1.7 #define brt(col) (.263*(col)[0]+.655*(col)[1]+.082*(col)[2])
11 greg 1.1
12     char DATORD[] = "RGB"; /* data ordering */
13     char DATSUF[] = ".dat"; /* data file suffix */
14     char DSTSUF[] = ".dist"; /* distribution suffix */
15     char FNCFNM[] = "illum.cal"; /* function file name */
16    
17    
18     printobj(mod, obj) /* print out an object */
19     char *mod;
20     register OBJREC *obj;
21     {
22     register int i;
23    
24 greg 2.3 if (issurface(obj->otype) && !strcmp(mod, VOIDID))
25     return; /* don't print void surfaces */
26 greg 1.1 printf("\n%s %s %s", mod, ofun[obj->otype].funame, obj->oname);
27     printf("\n%d", obj->oargs.nsargs);
28     for (i = 0; i < obj->oargs.nsargs; i++)
29     printf(" %s", obj->oargs.sarg[i]);
30     #ifdef IARGS
31     printf("\n%d", obj->oargs.niargs);
32     for (i = 0; i < obj->oargs.niargs; i++)
33     printf(" %d", obj->oargs.iarg[i]);
34     #else
35     printf("\n0");
36     #endif
37     printf("\n%d", obj->oargs.nfargs);
38     for (i = 0; i < obj->oargs.nfargs; i++) {
39     if (i%3 == 0)
40     putchar('\n');
41     printf(" %18.12g", obj->oargs.farg[i]);
42     }
43     putchar('\n');
44     }
45    
46    
47     char *
48     dfname(il, c) /* return data file name */
49     struct illum_args *il;
50     int c;
51     {
52     extern char *getpath(), *strcpy();
53     char fname[MAXSTR];
54     register char *s;
55    
56     s = strcpy(fname, il->datafile);
57     s += strlen(s);
58     if (c) *s++ = c;
59     if (il->dfnum > 0) {
60     sprintf(s, "%d", il->dfnum);
61     s += strlen(s);
62     }
63     strcpy(s, DATSUF);
64     return(getpath(fname, NULL, 0));
65     }
66    
67    
68     FILE *
69     dfopen(il, c) /* open data file */
70     register struct illum_args *il;
71     int c;
72     {
73     char *fn;
74     FILE *fp;
75     /* get a usable file name */
76     for (fn = dfname(il, c);
77     !(il->flags & IL_DATCLB) && access(fn, F_OK) == 0;
78     fn = dfname(il, c))
79     il->dfnum++;
80     /* open it for writing */
81     if ((fp = fopen(fn, "w")) == NULL) {
82     sprintf(errmsg, "cannot open data file \"%s\"", fn);
83     error(SYSTEM, errmsg);
84     }
85     return(fp);
86     }
87    
88    
89     flatout(il, da, n, m, u, v, w) /* write hemispherical distribution */
90     struct illum_args *il;
91     float *da;
92     int n, m;
93     FVECT u, v, w;
94     {
95 greg 2.5 float *Ninv;
96 greg 1.1 FILE *dfp;
97     int i;
98    
99 greg 2.5 if ((Ninv = (float *)malloc(3*m*sizeof(float))) == NULL)
100     error(SYSTEM, "out of memory in flatout");
101     compinv(Ninv, da, m);
102 greg 1.1 if (il->flags & IL_COLDST) {
103     printf("\n%s %s %s%s", VOIDID, ofun[PAT_CDATA].funame,
104     il->matname, DSTSUF);
105 greg 2.5 printf("\n9 red green blue");
106 greg 1.1 for (i = 0; i < 3; i++) {
107     dfp = dfopen(il, DATORD[i]);
108 greg 1.6 fprintf(dfp, "2\n%f %f %d\n%f %f %d\n",
109 greg 2.5 1.+.5/n, .5/n, n+1,
110 greg 1.6 0., 2.*PI, m+1);
111 greg 2.5 colorout(i, Ninv, 1, m, 1./il->nsamps/il->col[i], dfp);
112 greg 1.6 colorout(i, da, n, m, 1./il->nsamps/il->col[i], dfp);
113 greg 2.5 fputeol(dfp);
114 greg 1.1 fclose(dfp);
115     printf(" %s", dfname(il, DATORD[i]));
116     }
117     } else {
118     printf("\n%s %s %s%s", VOIDID, ofun[PAT_BDATA].funame,
119     il->matname, DSTSUF);
120 greg 2.5 printf("\n5 noneg");
121 greg 1.1 dfp = dfopen(il, 0);
122 greg 2.6 fprintf(dfp, "2\n%f %f %d\n%f %f %d\n",
123     1.+.5/n, .5/n, n+1,
124 greg 1.6 0., 2.*PI, m+1);
125 greg 2.5 brightout(Ninv, 1, m, 1./il->nsamps/brt(il->col), dfp);
126 greg 1.6 brightout(da, n, m, 1./il->nsamps/brt(il->col), dfp);
127 greg 2.5 fputeol(dfp);
128 greg 1.1 fclose(dfp);
129     printf(" %s", dfname(il, 0));
130     }
131     printf("\n\t%s il_alth il_azih", FNCFNM);
132 greg 2.5 printf("\n0\n9\n");
133 greg 1.1 printf("\t%f\t%f\t%f\n", u[0], u[1], u[2]);
134     printf("\t%f\t%f\t%f\n", v[0], v[1], v[2]);
135     printf("\t%f\t%f\t%f\n", w[0], w[1], w[2]);
136     il->dfnum++;
137 greg 2.7 free((void *)Ninv);
138 greg 1.1 }
139    
140    
141     roundout(il, da, n, m) /* write spherical distribution */
142     struct illum_args *il;
143     float *da;
144     int n, m;
145     {
146 greg 2.5 float *Ninv, *Sinv;
147 greg 1.1 FILE *dfp;
148     int i;
149    
150 greg 2.5 if ((Ninv = (float *)malloc(3*m*sizeof(float))) == NULL ||
151     (Sinv = (float *)malloc(3*m*sizeof(float))) == NULL)
152 greg 2.6 error(SYSTEM, "out of memory in roundout");
153 greg 2.5 compinv(Ninv, da, m);
154     compinv(Sinv, da+3*m*(n-1), m);
155 greg 1.1 if (il->flags & IL_COLDST) {
156     printf("\n%s %s %s%s", VOIDID, ofun[PAT_CDATA].funame,
157     il->matname, DSTSUF);
158 greg 2.5 printf("\n9 red green blue");
159 greg 1.1 for (i = 0; i < 3; i++) {
160     dfp = dfopen(il, DATORD[i]);
161 greg 1.6 fprintf(dfp, "2\n%f %f %d\n%f %f %d\n",
162 greg 2.5 1.+1./n, -1.-1./n, n+2,
163 greg 1.6 0., 2.*PI, m+1);
164 greg 2.5 colorout(i, Ninv, 1, m, 1./il->nsamps/il->col[i], dfp);
165 greg 1.6 colorout(i, da, n, m, 1./il->nsamps/il->col[i], dfp);
166 greg 2.5 colorout(i, Sinv, 1, m, 1./il->nsamps/il->col[i], dfp);
167     fputeol(dfp);
168 greg 1.1 fclose(dfp);
169     printf(" %s", dfname(il, DATORD[i]));
170     }
171     } else {
172     printf("\n%s %s %s%s", VOIDID, ofun[PAT_BDATA].funame,
173     il->matname, DSTSUF);
174 greg 2.5 printf("\n5 noneg");
175 greg 1.1 dfp = dfopen(il, 0);
176 greg 2.6 fprintf(dfp, "2\n%f %f %d\n%f %f %d\n",
177     1.+1./n, -1.-1./n, n+2,
178 greg 1.6 0., 2.*PI, m+1);
179 greg 2.5 brightout(Ninv, 1, m, 1./il->nsamps/brt(il->col), dfp);
180 greg 1.6 brightout(da, n, m, 1./il->nsamps/brt(il->col), dfp);
181 greg 2.5 brightout(Sinv, 1, m, 1./il->nsamps/brt(il->col), dfp);
182     fputeol(dfp);
183 greg 1.1 fclose(dfp);
184     printf(" %s", dfname(il, 0));
185     }
186     printf("\n\t%s il_alt il_azi", FNCFNM);
187 greg 2.5 printf("\n0\n0\n");
188 greg 1.1 il->dfnum++;
189 greg 2.7 free((void *)Ninv);
190     free((void *)Sinv);
191 greg 1.2 }
192    
193    
194     illumout(il, ob) /* print illum object */
195     register struct illum_args *il;
196     OBJREC *ob;
197     {
198     double cout[3];
199    
200 greg 1.4 if (il->sampdens <= 0)
201     printf("\n%s ", VOIDID);
202     else
203     printf("\n%s%s ", il->matname, DSTSUF);
204     printf("%s %s", ofun[il->flags&IL_LIGHT?MAT_LIGHT:MAT_ILLUM].funame,
205 greg 1.2 il->matname);
206     if (il->flags & IL_LIGHT || !strcmp(il->altmat,VOIDID))
207     printf("\n0");
208     else
209     printf("\n1 %s", il->altmat);
210     if (il->flags & IL_COLAVG) {
211     cout[0] = il->col[0];
212     cout[1] = il->col[1];
213     cout[2] = il->col[2];
214     } else {
215     cout[0] = cout[1] = cout[2] = brt(il->col);
216     }
217 greg 1.3 printf("\n0\n3 %f %f %f\n", cout[0], cout[1], cout[2]);
218 greg 1.2
219     printobj(il->matname, ob);
220 greg 1.1 }
221    
222    
223 greg 2.5 compavg(col, da, n) /* compute average for set of data values */
224 greg 2.4 float col[3];
225 greg 1.1 register float *da;
226 greg 2.5 int n;
227 greg 1.1 {
228     register int i;
229    
230 greg 2.4 col[0] = col[1] = col[2] = 0.;
231 greg 1.1 i = n;
232     while (i-- > 0) {
233 greg 2.4 col[0] += *da++;
234     col[1] += *da++;
235     col[2] += *da++;
236 greg 1.1 }
237     for (i = 0; i < 3; i++)
238 greg 2.5 col[i] /= (double)n;
239 greg 2.4 }
240 greg 1.5
241 greg 2.4
242 greg 2.5 compinv(rinv, rp, m) /* compute other side of row average */
243     register float *rinv, *rp;
244     int m;
245     {
246     float avg[3];
247    
248     compavg(avg, rp, m); /* row average */
249     while (m-- > 0) {
250     *rinv++ = 2.*avg[0] - *rp++;
251     *rinv++ = 2.*avg[1] - *rp++;
252     *rinv++ = 2.*avg[2] - *rp++;
253     }
254     }
255    
256    
257 greg 2.4 average(il, da, n) /* evaluate average value for distribution */
258     register struct illum_args *il;
259     float *da;
260     int n;
261     {
262 greg 2.5 compavg(il->col, da, n); /* average */
263     if (il->nsamps > 1) {
264     il->col[0] /= (double)il->nsamps;
265     il->col[1] /= (double)il->nsamps;
266     il->col[2] /= (double)il->nsamps;
267     }
268 greg 2.4 /* brighter than minimum? */
269 greg 1.6 return(brt(il->col) > il->minbrt+FTINY);
270 greg 1.1 }
271    
272    
273 greg 1.6 static int colmcnt = 0; /* count of columns written */
274    
275     fputnum(d, fp) /* put out a number to fp */
276     double d;
277     FILE *fp;
278     {
279 greg 2.5 if (colmcnt++ % 5 == 0)
280 greg 1.6 putc('\n', fp);
281     fprintf(fp, " %11e", d);
282     }
283    
284    
285     fputeol(fp) /* write end of line to fp */
286     register FILE *fp;
287     {
288     putc('\n', fp);
289     colmcnt = 0;
290     }
291    
292    
293     colorout(p, da, n, m, mult, fp) /* put out color distribution data */
294 greg 1.1 int p;
295     register float *da;
296 greg 1.6 int n, m;
297 greg 1.1 double mult;
298     FILE *fp;
299     {
300 greg 1.6 register int i, j;
301 greg 1.1
302     for (i = 0; i < n; i++) {
303 greg 1.6 for (j = 0; j < m; j++) {
304     fputnum(mult*da[p], fp);
305     da += 3;
306     }
307     fputnum(mult*da[p-3*m], fp); /* wrap phi */
308 greg 1.1 }
309     }
310    
311    
312 greg 1.6 brightout(da, n, m, mult, fp) /* put out brightness distribution data */
313 greg 1.1 register float *da;
314 greg 1.6 int n, m;
315 greg 1.1 double mult;
316     FILE *fp;
317     {
318 greg 1.6 register int i, j;
319 greg 1.1
320     for (i = 0; i < n; i++) {
321 greg 1.6 for (j = 0; j < m; j++) {
322     fputnum(mult*brt(da), fp);
323     da += 3;
324     }
325     fputnum(mult*brt(da-3*m), fp); /* wrap phi */
326 greg 1.1 }
327     }