| 20 |
|
* All values default to ascii representation of real |
| 21 |
|
* numbers. Binary representations can be selected |
| 22 |
|
* with '-ff' for float or '-fd' for double. By default, |
| 23 |
< |
* radiance is computed. The '-i' option indicates that |
| 23 |
> |
* radiance is computed. The '-i' or '-I' options indicate that |
| 24 |
|
* irradiance values are desired. |
| 25 |
|
*/ |
| 26 |
|
|
| 27 |
|
#include "ray.h" |
| 28 |
|
|
| 29 |
+ |
#include "octree.h" |
| 30 |
+ |
|
| 31 |
|
#include "otypes.h" |
| 32 |
|
|
| 33 |
+ |
int imm_irrad = 0; /* compute immediate irradiance? */ |
| 34 |
+ |
|
| 35 |
|
int inform = 'a'; /* input format */ |
| 36 |
|
int outform = 'a'; /* output format */ |
| 37 |
|
char *outvals = "v"; /* output specification */ |
| 55 |
|
char *amblist[128]; /* ambient include/exclude list */ |
| 56 |
|
int ambincl = -1; /* include == 1, exclude == 0 */ |
| 57 |
|
|
| 58 |
+ |
extern OBJREC Lamb; /* a Lambertian surface */ |
| 59 |
+ |
|
| 60 |
|
static RAY thisray; /* for our convenience */ |
| 61 |
|
|
| 62 |
|
static int oputo(), oputd(), oputv(), oputl(), |
| 63 |
|
oputp(), oputn(), oputs(), oputw(), oputm(); |
| 64 |
|
|
| 65 |
|
static int (*ray_out[10])(), (*every_out[10])(); |
| 66 |
+ |
static int castonly; |
| 67 |
|
|
| 68 |
|
static int puta(), putf(), putd(); |
| 69 |
|
|
| 107 |
|
continue; |
| 108 |
|
} |
| 109 |
|
/* compute and print */ |
| 110 |
< |
if (outvals[0] == 'i') |
| 110 |
> |
if (imm_irrad) |
| 111 |
|
irrad(orig, direc); |
| 112 |
|
else |
| 113 |
< |
radiance(orig, direc); |
| 113 |
> |
traceray(orig, direc); |
| 114 |
|
/* flush if time */ |
| 115 |
|
if (--nextflush == 0) { |
| 116 |
|
fflush(stdout); |
| 133 |
|
extern int ourtrace(), (*trace)(); |
| 134 |
|
register int (**table)() = ray_out; |
| 135 |
|
|
| 136 |
+ |
castonly = 1; |
| 137 |
|
while (*vs) |
| 138 |
|
switch (*vs++) { |
| 139 |
|
case 't': /* trace */ |
| 140 |
|
*table = NULL; |
| 141 |
|
table = every_out; |
| 142 |
|
trace = ourtrace; |
| 143 |
+ |
castonly = 0; |
| 144 |
|
break; |
| 145 |
|
case 'o': /* origin */ |
| 146 |
|
*table++ = oputo; |
| 150 |
|
break; |
| 151 |
|
case 'v': /* value */ |
| 152 |
|
*table++ = oputv; |
| 153 |
+ |
castonly = 0; |
| 154 |
|
break; |
| 155 |
|
case 'l': /* length */ |
| 156 |
|
*table++ = oputl; |
| 157 |
+ |
castonly = 0; |
| 158 |
|
break; |
| 159 |
|
case 'p': /* point */ |
| 160 |
|
*table++ = oputp; |
| 176 |
|
} |
| 177 |
|
|
| 178 |
|
|
| 179 |
< |
radiance(org, dir) /* compute radiance value */ |
| 179 |
> |
traceray(org, dir) /* compute and print ray value(s) */ |
| 180 |
|
FVECT org, dir; |
| 181 |
|
{ |
| 182 |
|
register int (**tp)(); |
| 184 |
|
VCOPY(thisray.rorg, org); |
| 185 |
|
VCOPY(thisray.rdir, dir); |
| 186 |
|
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
| 187 |
< |
rayvalue(&thisray); |
| 187 |
> |
if (castonly) |
| 188 |
> |
localhit(&thisray, &thescene) || sourcehit(&thisray); |
| 189 |
> |
else |
| 190 |
> |
rayvalue(&thisray); |
| 191 |
|
|
| 192 |
|
if (ray_out[0] == NULL) |
| 193 |
|
return; |
| 198 |
|
} |
| 199 |
|
|
| 200 |
|
|
| 201 |
< |
irrad(org, dir) /* compute irradiance value */ |
| 201 |
> |
irrad(org, dir) /* compute immediate irradiance value */ |
| 202 |
|
FVECT org, dir; |
| 203 |
|
{ |
| 190 |
– |
static double Lambfa[5] = {PI, PI, PI, 0.0, 0.0}; |
| 191 |
– |
static OBJREC Lamb = { |
| 192 |
– |
OVOID, MAT_PLASTIC, "Lambertian", |
| 193 |
– |
{0, 5, NULL, Lambfa}, NULL, -1, |
| 194 |
– |
}; |
| 204 |
|
register int i; |
| 205 |
|
|
| 206 |
|
for (i = 0; i < 3; i++) { |
