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#include <math.h> |
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#include "color.h" |
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#ifndef atof |
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extern double atof(); |
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#endif |
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extern char *strcpy(), *strcat(), *malloc(); |
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extern double stadj(), sdec(), sazi(), salt(); |
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int argc; |
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char *argv[]; |
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{ |
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< |
extern double atof(); |
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> |
extern double fabs(); |
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int i; |
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progname = argv[0]; |
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else |
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userror("bad option"); |
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if (fabs(s_meridian-s_longitude) > 30*PI/180) |
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fprintf(stderr, |
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"%s: warning: %.1f hours btwn. standard meridian and longitude\n", |
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progname, (s_longitude-s_meridian)*12/PI); |
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printhead(argc, argv); |
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computesky(); |
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if (zenithbr <= 0.0) |
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if (cloudy) { |
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zenithbr = 8.6*sundir[2] + .123; |
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zenithbr *= 1000.0/683.0; |
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> |
zenithbr *= 1000.0/SKYEFFICACY; |
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} else { |
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zenithbr = (1.376*turbidity-1.81)*tan(altitude)+0.38; |
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zenithbr *= 1000.0/683.0; |
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> |
zenithbr *= 1000.0/SKYEFFICACY; |
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} |
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if (zenithbr < 0.0) |
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zenithbr = 0.0; |
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/* Compute horizontal radiance */ |
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if (cloudy) { |
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groundbr = zenithbr*0.777778; |
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printf("# Ground ambient level: %f\n", groundbr); |
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if (sundir[2] > 0.0) { |
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if (sundir[2] > .16) |
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< |
solarbr = 2.47e6 - 3.15e5/sundir[2]; |
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> |
solarbr = (1.5e9/SUNEFFICACY) * |
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> |
(1.147 - .147/sundir[2]); |
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else |
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< |
solarbr = 5e5; |
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> |
solarbr = 1.5e9/SUNEFFICACY*(1.147-.147/.16); |
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groundbr += solarbr*6e-5*sundir[2]/PI; |
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} else |
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dosun = 0; |
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printsky() /* print out sky */ |
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{ |
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– |
register int i; |
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– |
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if (dosun) { |
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printf("\nvoid light solar\n"); |
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printf("0\n0\n"); |
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< |
printf("3 %f %f %f\n", solarbr, solarbr, solarbr); |
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> |
printf("3 %.2e %.2e %.2e\n", solarbr, solarbr, solarbr); |
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printf("\nsolar source sun\n"); |
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printf("0\n0\n"); |
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printf("4 %f %f %f 0.5\n", sundir[0], sundir[1], sundir[2]); |
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printf("2 skybright skybright.cal\n"); |
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printf("0\n"); |
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if (cloudy) |
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< |
printf("3 1 %f %f\n", zenithbr, groundbr); |
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> |
printf("3 1 %.2e %.2e\n", zenithbr, groundbr); |
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else |
| 187 |
< |
printf("7 -1 %f %f %f %f %f %f\n", zenithbr, groundbr, F2, |
| 188 |
< |
sundir[0], sundir[1], sundir[2]); |
| 187 |
> |
printf("7 -1 %.2e %.2e %.2e %f %f %f\n", zenithbr, groundbr, |
| 188 |
> |
F2, sundir[0], sundir[1], sundir[2]); |
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} |
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