| 8 |
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| 9 |
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#include "copyright.h" |
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| 11 |
– |
#include <ctype.h> |
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#include "rcontrib.h" |
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#include "otypes.h" |
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#include "source.h" |
| 21 |
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int ndims = 0; /* number of sampling dimensions */ |
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int samplendx = 0; /* index for this sample */ |
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|
| 24 |
< |
static void trace_contrib(RAY *r); /* our trace callback */ |
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< |
void (*trace)() = trace_contrib; |
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> |
void (*trace)() = NULL; /* trace call (NULL before rcinit) */ |
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|
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int do_irrad = 0; /* compute irradiance? */ |
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|
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int rand_samp = 1; /* pure Monte Carlo sampling? */ |
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|
| 30 |
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double dstrsrc = 0.9; /* square source distribution */ |
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< |
double shadthresh = .03; /* shadow threshold */ |
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> |
double shadthresh = 0.; /* shadow threshold */ |
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double shadcert = .75; /* shadow certainty */ |
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int directrelay = 3; /* number of source relays */ |
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int vspretest = 512; /* virtual source pretest density */ |
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double seccg = 0.; /* global scattering eccentricity */ |
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double ssampdist = 0.; /* scatter sampling distance */ |
| 42 |
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|
| 43 |
< |
double specthresh = .15; /* specular sampling threshold */ |
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> |
double specthresh = .02; /* specular sampling threshold */ |
| 44 |
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double specjitter = 1.; /* specular sampling jitter */ |
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|
| 46 |
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int backvis = 1; /* back face visibility */ |
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char *ambfile = NULL; /* ambient file name */ |
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COLOR ambval = BLKCOLOR; /* ambient value */ |
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int ambvwt = 0; /* initial weight for ambient value */ |
| 54 |
< |
double ambacc = 0; /* ambient accuracy */ |
| 54 |
> |
double ambacc = 0.; /* ambient accuracy */ |
| 55 |
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int ambres = 256; /* ambient resolution */ |
| 56 |
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int ambdiv = 350; /* ambient divisions */ |
| 57 |
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int ambssamp = 0; /* ambient super-samples */ |
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RNUMBER lastray = 0; /* last ray number sent */ |
| 67 |
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RNUMBER lastdone = 0; /* last ray output */ |
| 68 |
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|
| 69 |
+ |
static void trace_contrib(RAY *r); /* our trace callback */ |
| 70 |
+ |
|
| 71 |
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static void mcfree(void *p) { epfree((*(MODCONT *)p).binv); free(p); } |
| 72 |
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|
| 73 |
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LUTAB modconttab = LU_SINIT(NULL,mcfree); /* modifier lookup table */ |
| 102 |
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sprintf(errmsg, "duplicate modifier '%s'", modn); |
| 103 |
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error(USER, errmsg); |
| 104 |
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} |
| 105 |
< |
if (nmods >= MAXMODLIST) |
| 106 |
< |
error(INTERNAL, "too many modifiers"); |
| 105 |
> |
if (nmods >= MAXMODLIST) { |
| 106 |
> |
sprintf(errmsg, "too many modifiers (%d limit)", MAXMODLIST); |
| 107 |
> |
error(INTERNAL, errmsg); |
| 108 |
> |
} |
| 109 |
> |
if (!strcmp(modn, VOIDID)) { |
| 110 |
> |
sprintf(errmsg, "cannot track '%s' modifier", VOIDID); |
| 111 |
> |
error(USER, errmsg); |
| 112 |
> |
} |
| 113 |
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modname[nmods++] = modn; /* XXX assumes static string */ |
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lep->key = modn; /* XXX assumes static string */ |
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if (binv == NULL) |
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error(SYSTEM, "out of memory in addmodifier"); |
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mp->outspec = outf; /* XXX assumes static string */ |
| 136 |
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mp->modname = modn; /* XXX assumes static string */ |
| 137 |
< |
mp->params = prms; |
| 137 |
> |
mp->params = prms; /* XXX assumes static string */ |
| 138 |
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mp->binv = ebinv; |
| 139 |
+ |
mp->bin0 = 0; |
| 140 |
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mp->nbins = bincnt; |
| 141 |
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memset(mp->cbin, 0, sizeof(DCOLOR)*bincnt); |
| 142 |
< |
/* allocate output streams */ |
| 143 |
< |
for (i = bincnt; i-- > 0; ) |
| 144 |
< |
getostream(mp->outspec, mp->modname, i, 1); |
| 142 |
> |
/* figure out starting bin */ |
| 143 |
> |
while (!getostream(mp->outspec, mp->modname, mp->bin0, 1)) |
| 144 |
> |
mp->bin0++; |
| 145 |
> |
/* allocate other output streams */ |
| 146 |
> |
for (i = 0; ++i < mp->nbins; ) |
| 147 |
> |
getostream(mp->outspec, mp->modname, mp->bin0+i, 1); |
| 148 |
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lep->data = (char *)mp; |
| 149 |
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return(mp); |
| 150 |
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} |
| 157 |
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char *mname[MAXMODLIST]; |
| 158 |
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int i; |
| 159 |
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/* find the file & store strings */ |
| 160 |
< |
if (wordfile(mname, getpath(fname, getrlibpath(), R_OK)) < 0) { |
| 160 |
> |
i = wordfile(mname, MAXMODLIST, getpath(fname, getrlibpath(), R_OK)); |
| 161 |
> |
if (i < 0) { |
| 162 |
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sprintf(errmsg, "cannot find modifier file '%s'", fname); |
| 163 |
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error(SYSTEM, errmsg); |
| 164 |
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} |
| 165 |
+ |
if (i >= MAXMODLIST-1) { |
| 166 |
+ |
sprintf(errmsg, "too many modifiers (%d limit) in file '%s'", |
| 167 |
+ |
MAXMODLIST-1, fname); |
| 168 |
+ |
error(INTERNAL, errmsg); |
| 169 |
+ |
} |
| 170 |
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for (i = 0; mname[i]; i++) /* add each one */ |
| 171 |
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addmodifier(mname[i], outf, prms, binv, bincnt); |
| 172 |
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} |
| 185 |
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|
| 186 |
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/* Initialize our process(es) */ |
| 187 |
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static void |
| 188 |
< |
rcinit() |
| 188 |
> |
rcinit(void) |
| 189 |
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{ |
| 190 |
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int i; |
| 191 |
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|
| 197 |
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/* set shared memory boundary */ |
| 198 |
|
shm_boundary = strcpy((char *)malloc(16), "SHM_BOUNDARY"); |
| 199 |
|
} |
| 200 |
+ |
trace = trace_contrib; /* set up trace call-back */ |
| 201 |
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for (i = 0; i < nsources; i++) /* tracing to sources as well */ |
| 202 |
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source[i].sflags |= SFOLLOW; |
| 203 |
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if (yres > 0) { /* set up flushing & ray counts */ |
| 232 |
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|
| 233 |
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/************************** MAIN CALCULATION PROCESS ***********************/ |
| 234 |
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|
| 218 |
– |
/* Set parameters for current bin evaluation */ |
| 219 |
– |
static void |
| 220 |
– |
set_eparams(char *prms) |
| 221 |
– |
{ |
| 222 |
– |
char vname[64]; |
| 223 |
– |
double value; |
| 224 |
– |
char *cps, *cpd; |
| 225 |
– |
/* assign each variable */ |
| 226 |
– |
for (cps = prms; *cps; cps++) { |
| 227 |
– |
if (isspace(*cps)) |
| 228 |
– |
continue; |
| 229 |
– |
if (!isalpha(*cps)) |
| 230 |
– |
goto bad_params; |
| 231 |
– |
cpd = vname; |
| 232 |
– |
while (*cps && (*cps != '=') & !isspace(*cps)) { |
| 233 |
– |
if (!isid(*cps)) |
| 234 |
– |
goto bad_params; |
| 235 |
– |
*cpd++ = *cps++; |
| 236 |
– |
} |
| 237 |
– |
if (cpd == vname) |
| 238 |
– |
goto bad_params; |
| 239 |
– |
*cpd = '\0'; |
| 240 |
– |
while (isspace(*cps)) cps++; |
| 241 |
– |
if (*cps++ != '=') |
| 242 |
– |
goto bad_params; |
| 243 |
– |
value = atof(cps); |
| 244 |
– |
if ((cps = fskip(cps)) == NULL) |
| 245 |
– |
goto bad_params; |
| 246 |
– |
while (isspace(*cps)) cps++; |
| 247 |
– |
cps += (*cps == ',') | (*cps == ';'); |
| 248 |
– |
varset(vname, '=', value); |
| 249 |
– |
} |
| 250 |
– |
return; |
| 251 |
– |
bad_params: |
| 252 |
– |
sprintf(errmsg, "bad parameter list '%s'", prms); |
| 253 |
– |
error(USER, errmsg); |
| 254 |
– |
} |
| 255 |
– |
|
| 235 |
|
/* Our trace call to sum contributions */ |
| 236 |
|
static void |
| 237 |
|
trace_contrib(RAY *r) |
| 238 |
|
{ |
| 260 |
– |
static char *last_params = NULL; |
| 239 |
|
MODCONT *mp; |
| 240 |
|
double bval; |
| 241 |
|
int bn; |
| 252 |
|
if (mp == NULL) /* not in our list? */ |
| 253 |
|
return; |
| 254 |
|
|
| 255 |
< |
worldfunc(RCCONTEXT, r); /* else get bin number */ |
| 256 |
< |
if (mp->params != last_params) |
| 257 |
< |
set_eparams(last_params = (char *)mp->params); |
| 258 |
< |
if ((bval = evalue(mp->binv)) <= -.5) |
| 281 |
< |
return; /* silently ignore */ |
| 255 |
> |
worldfunc(RCCONTEXT, r); /* else set context */ |
| 256 |
> |
set_eparams((char *)mp->params); |
| 257 |
> |
if ((bval = evalue(mp->binv)) <= -.5) /* and get bin number */ |
| 258 |
> |
return; /* silently ignore negatives */ |
| 259 |
|
if ((bn = (int)(bval + .5)) >= mp->nbins) { |
| 260 |
< |
error(WARNING, "bad bin number (ignored)"); |
| 260 |
> |
sprintf(errmsg, "bad bin number (%d ignored)", bn); |
| 261 |
> |
error(WARNING, errmsg); |
| 262 |
|
return; |
| 263 |
|
} |
| 264 |
|
raycontrib(contr, r, PRIMARY); /* compute coefficient */ |
| 281 |
|
thisray.rmax = 0.0; |
| 282 |
|
rayorigin(&thisray, PRIMARY, NULL, NULL); |
| 283 |
|
/* pretend we hit surface */ |
| 284 |
< |
thisray.rt = thisray.rot = 1e-5; |
| 284 |
> |
thisray.rxt = thisray.rot = 1e-5; |
| 285 |
|
thisray.rod = 1.0; |
| 286 |
|
VCOPY(thisray.ron, dir); |
| 287 |
|
VSUM(thisray.rop, org, dir, 1e-4); |
| 307 |
|
|
| 308 |
|
/* Accumulate and/or output ray contributions (child or only process) */ |
| 309 |
|
static void |
| 310 |
< |
done_contrib() |
| 310 |
> |
done_contrib(void) |
| 311 |
|
{ |
| 312 |
|
MODCONT *mp; |
| 313 |
|
int i; |
| 328 |
|
|
| 329 |
|
/* Principal calculation loop (called by main) */ |
| 330 |
|
void |
| 331 |
< |
rcontrib() |
| 331 |
> |
rcontrib(void) |
| 332 |
|
{ |
| 333 |
|
static int ignore_warning_given = 0; |
| 334 |
|
FVECT orig, direc; |