260 |
|
extern double s_longitude; |
261 |
|
extern double s_meridian; |
262 |
|
|
263 |
– |
double grefl = 0.2; /* diffuse ground reflectance */ |
264 |
– |
|
263 |
|
int verbose = 0; /* progress reports to stderr? */ |
264 |
|
|
265 |
|
int outfmt = 'a'; /* output format */ |
266 |
|
|
267 |
|
int rhsubdiv = 1; /* Reinhart sky subdivisions */ |
268 |
|
|
269 |
< |
float skycolor[3] = {.96, 1.004, 1.118}; /* sky coloration */ |
269 |
> |
COLOR skycolor = {.96, 1.004, 1.118}; /* sky coloration */ |
270 |
> |
COLOR suncolor = {1., 1., 1.}; /* sun color */ |
271 |
> |
COLOR grefl = {.2, .2, .2}; /* ground reflectance */ |
272 |
|
|
273 |
– |
int do_sun = 1; /* output direct solar contribution? */ |
274 |
– |
|
273 |
|
int nskypatch; /* number of Reinhart patches */ |
274 |
|
float *rh_palt; /* sky patch altitudes (radians) */ |
275 |
|
float *rh_pazi; /* sky patch azimuths (radians) */ |
307 |
|
/* get options */ |
308 |
|
for (i = 1; i < argc && argv[i][0] == '-'; i++) |
309 |
|
switch (argv[i][1]) { |
310 |
< |
case 'g': |
311 |
< |
grefl = atof(argv[++i]); |
310 |
> |
case 'g': /* ground reflectance */ |
311 |
> |
grefl[0] = atof(argv[++i]); |
312 |
> |
grefl[1] = atof(argv[++i]); |
313 |
> |
grefl[2] = atof(argv[++i]); |
314 |
|
break; |
315 |
< |
case 'v': |
315 |
> |
case 'v': /* verbose progress reports */ |
316 |
|
verbose++; |
317 |
|
break; |
318 |
< |
case 'o': |
318 |
> |
case 'o': /* output format */ |
319 |
|
switch (argv[i][2]) { |
320 |
|
case 'f': |
321 |
|
case 'd': |
326 |
|
goto userr; |
327 |
|
} |
328 |
|
break; |
329 |
< |
case 'm': |
329 |
> |
case 'm': /* Reinhart subdivisions */ |
330 |
|
rhsubdiv = atoi(argv[++i]); |
331 |
|
break; |
332 |
< |
case 'c': |
332 |
> |
case 'c': /* sky color */ |
333 |
|
skycolor[0] = atof(argv[++i]); |
334 |
|
skycolor[1] = atof(argv[++i]); |
335 |
|
skycolor[2] = atof(argv[++i]); |
336 |
|
break; |
337 |
< |
case 'd': |
338 |
< |
do_sun = 1; |
337 |
> |
case 'd': /* solar (direct) only */ |
338 |
|
skycolor[0] = skycolor[1] = skycolor[2] = 0; |
339 |
+ |
if (suncolor[1] <= 1e-4) |
340 |
+ |
suncolor[0] = suncolor[1] = suncolor[2] = 1; |
341 |
|
break; |
342 |
< |
case 's': |
343 |
< |
do_sun = 0; |
342 |
> |
case 's': /* sky only (no direct) */ |
343 |
> |
suncolor[0] = suncolor[1] = suncolor[2] = 0; |
344 |
|
if (skycolor[1] <= 1e-4) |
345 |
|
skycolor[0] = skycolor[1] = skycolor[2] = 1; |
346 |
|
break; |
434 |
|
} |
435 |
|
/* compute sky patch values */ |
436 |
|
ComputeSky(mtx_data+mtx_offset); |
437 |
< |
if (do_sun) |
437 |
< |
AddDirect(mtx_data+mtx_offset); |
437 |
> |
AddDirect(mtx_data+mtx_offset); |
438 |
|
} |
439 |
|
/* check for junk at end */ |
440 |
|
while ((i = fgetc(stdin)) != EOF) |
565 |
|
parr[0] = diff_illum; |
566 |
|
if (altitude > 0) |
567 |
|
parr[0] += dir_illum * sin(altitude); |
568 |
< |
parr[2] = parr[1] = parr[0] *= grefl*(1./PI/WHTEFFICACY); |
568 |
> |
parr[2] = parr[1] = parr[0] *= (1./PI/WHTEFFICACY); |
569 |
> |
multcolor(parr, grefl); |
570 |
|
|
571 |
|
/* Calculate Perez sky model parameters */ |
572 |
|
CalcPerezParam(sun_zenith, sky_clearness, sky_brightness, index); |
603 |
|
double wta[NSUNPATCH], wtot; |
604 |
|
int i, j, p; |
605 |
|
|
606 |
< |
if (!do_sun || dir_illum < 1e-4) |
606 |
> |
if (dir_illum <= 1e-4 || bright(suncolor) <= 1e-4) |
607 |
|
return; |
608 |
|
/* identify NSUNPATCH closest patches */ |
609 |
|
for (i = NSUNPATCH; i--; ) |
633 |
|
float *pdest = parr + 3*near_patch[i]; |
634 |
|
float val_add = wta[i] * dir_illum / |
635 |
|
(WHTEFFICACY * wtot * rh_dom[near_patch[i]]); |
636 |
< |
*pdest++ += val_add; |
637 |
< |
*pdest++ += val_add; |
638 |
< |
*pdest++ += val_add; |
636 |
> |
*pdest++ += val_add*suncolor[0]; |
637 |
> |
*pdest++ += val_add*suncolor[1]; |
638 |
> |
*pdest++ += val_add*suncolor[2]; |
639 |
|
} |
640 |
|
} |
641 |
|
|