273 |
|
{ |
274 |
|
#define q(w) (20.4*w+1.52*pow(w,.2)-.075) |
275 |
|
register struct glare_src *gs; |
276 |
+ |
FVECT mydir; |
277 |
|
double p; |
278 |
|
double sum; |
279 |
|
double wtot, brsum; |
280 |
|
int n; |
281 |
|
|
282 |
+ |
spinvector(mydir, midview.vdir, midview.vup, gd->ang); |
283 |
|
sum = wtot = brsum = 0.0; n = 0; |
284 |
|
for (gs = all_srcs; gs != NULL; gs = gs->next) { |
285 |
< |
p = posindex(gs->dir, midview.vdir, midview.vup); |
285 |
> |
p = posindex(gs->dir, mydir, midview.vup); |
286 |
|
if (p <= FTINY) |
287 |
|
continue; |
288 |
|
sum += gs->lum * q(gs->dom) / p; |
313 |
|
guth_vcp(gd) /* compute Guth visual comfort probability */ |
314 |
|
struct glare_dir *gd; |
315 |
|
{ |
316 |
< |
return(100.*norm_integral(6.374-1.3227*log(guth_dgr(gd)))); |
316 |
> |
double dgr; |
317 |
> |
|
318 |
> |
dgr = guth_dgr(gd); |
319 |
> |
if (dgr <= FTINY) |
320 |
> |
return(100.0); |
321 |
> |
return(100.*norm_integral(6.374-1.3227*log(dgr))); |
322 |
|
} |