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41 |
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struct illum *indirect; /* array of indirect illuminances */ |
42 |
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43 |
+ |
long npixinvw; /* number of pixels in view */ |
44 |
+ |
long npixmiss; /* number of pixels missed */ |
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46 |
+ |
|
47 |
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main(argc, argv) |
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int argc; |
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char *argv[]; |
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/* set direction vectors */ |
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for (i = 0; glarang[i] != AEND; i++) |
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; |
210 |
< |
if (i > 0 && glarang[0] <= 0 || glarang[i-1] >= 180) { |
210 |
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if (i > 0 && (glarang[0] <= 0 || glarang[i-1] >= 180)) { |
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fprintf(stderr, "%s: glare angles must be between 1 and 179\n", |
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progname); |
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exit(1); |
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indirect = (struct illum *)calloc(nglardirs, sizeof(struct illum)); |
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if (indirect == NULL) |
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memerr("indirect illuminances"); |
229 |
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npixinvw = npixmiss = 0L; |
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copystruct(&leftview, &ourview); |
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copystruct(&rightview, &ourview); |
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spinvector(leftview.vdir, ourview.vdir, ourview.vup, maxtheta); |
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setview(&rightview); |
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indirect[nglarangs].lcos = |
237 |
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indirect[nglarangs].rcos = cos(maxtheta); |
238 |
< |
indirect[nglarangs].lsin = |
239 |
< |
-(indirect[nglarangs].rsin = sin(maxtheta)); |
238 |
> |
indirect[nglarangs].rsin = |
239 |
> |
-(indirect[nglarangs].lsin = sin(maxtheta)); |
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indirect[nglarangs].theta = 0.0; |
241 |
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for (i = 0; i < nglarangs; i++) { |
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d = (glarang[nglarangs-1] - glarang[i])*(PI/180.); |
243 |
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indirect[nglarangs-i-1].lcos = |
244 |
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indirect[nglarangs+i+1].rcos = cos(d); |
245 |
< |
indirect[nglarangs-i-1].lsin = |
246 |
< |
-(indirect[nglarangs+i+1].rsin = sin(d)); |
245 |
> |
indirect[nglarangs+i+1].rsin = |
246 |
> |
-(indirect[nglarangs-i-1].lsin = sin(d)); |
247 |
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d = (glarang[nglarangs-1] + glarang[i])*(PI/180.); |
248 |
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indirect[nglarangs-i-1].rcos = |
249 |
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indirect[nglarangs+i+1].lcos = cos(d); |
250 |
< |
indirect[nglarangs+i+1].lsin = |
251 |
< |
-(indirect[nglarangs-i-1].rsin = sin(d)); |
252 |
< |
indirect[nglarangs-i-1].theta = -(PI/180.)*glarang[i]; |
253 |
< |
indirect[nglarangs+i+1].theta = (PI/180.)*glarang[i]; |
250 |
> |
indirect[nglarangs-i-1].rsin = |
251 |
> |
-(indirect[nglarangs+i+1].lsin = sin(d)); |
252 |
> |
indirect[nglarangs-i-1].theta = (PI/180.)*glarang[i]; |
253 |
> |
indirect[nglarangs+i+1].theta = -(PI/180.)*glarang[i]; |
254 |
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} |
255 |
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/* open picture */ |
256 |
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if (picture != NULL) { |
280 |
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close_pict(); |
281 |
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if (octree != NULL) |
282 |
|
done_rtrace(); |
283 |
+ |
if (npixinvw < 100*npixmiss) |
284 |
+ |
fprintf(stderr, "%s: warning -- missing %ld%% of samples\n", |
285 |
+ |
progname, 100L*npixmiss/npixinvw); |
286 |
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} |
287 |
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|
288 |
|
|
294 |
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|
295 |
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if (x <= -hlim) /* left region */ |
296 |
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return(viewray(org, vd, &leftview, |
297 |
< |
(x+hlim)/(2.*sampdens)+.5, |
298 |
< |
y/(2.*sampdens)+.5)); |
297 |
> |
(double)(x+hlim)/(2*sampdens)+.5, |
298 |
> |
(double)y/(2*sampdens)+.5)); |
299 |
|
if (x >= hlim) /* right region */ |
300 |
|
return(viewray(org, vd, &rightview, |
301 |
< |
(x-hlim)/(2.*sampdens)+.5, |
302 |
< |
y/(2.*sampdens)+.5)); |
301 |
> |
(double)(x-hlim)/(2*sampdens)+.5, |
302 |
> |
(double)y/(2*sampdens)+.5)); |
303 |
|
/* central region */ |
304 |
< |
if (viewray(org, vd, &ourview, .5, y/(2.*sampdens)+.5) < 0) |
304 |
> |
if (viewray(org, vd, &ourview, .5, (double)y/(2*sampdens)+.5) < 0) |
305 |
|
return(-1); |
306 |
|
spinvector(vd, vd, ourview.vup, h_theta(x)); |
307 |
|
return(0); |
335 |
|
|
336 |
|
printf("BEGIN indirect illuminance\n"); |
337 |
|
for (i = 0; i < nglardirs; i++) |
338 |
< |
printf("\t%.0f\t%f\n", (180.0/PI)*indirect[i].theta, |
339 |
< |
PI * indirect[i].sum / (double)indirect[i].n); |
338 |
> |
if (indirect[i].n > FTINY) |
339 |
> |
printf("\t%.0f\t%f\n", (180.0/PI)*indirect[i].theta, |
340 |
> |
PI * indirect[i].sum / indirect[i].n); |
341 |
|
printf("END indirect illuminance\n"); |
342 |
|
} |