| 1 |
gregl |
3.1 |
/* Copyright (c) 1997 Silicon Graphics, Inc. */ |
| 2 |
|
|
|
| 3 |
|
|
#ifndef lint |
| 4 |
|
|
static char SCCSid[] = "$SunId$ SGI"; |
| 5 |
|
|
#endif |
| 6 |
|
|
|
| 7 |
|
|
/* |
| 8 |
|
|
* Rtrace support routines for holodeck rendering |
| 9 |
|
|
*/ |
| 10 |
|
|
|
| 11 |
|
|
#include "rholo.h" |
| 12 |
gregl |
3.5 |
#include "paths.h" |
| 13 |
gregl |
3.1 |
#include "random.h" |
| 14 |
|
|
|
| 15 |
|
|
|
| 16 |
|
|
packrays(rod, p) /* pack ray origins and directions */ |
| 17 |
|
|
register float *rod; |
| 18 |
|
|
register PACKET *p; |
| 19 |
|
|
{ |
| 20 |
|
|
static FVECT ro, rd; |
| 21 |
gregl |
3.3 |
GCOORD gc[2]; |
| 22 |
gregl |
3.4 |
int ila[2], hsh; |
| 23 |
|
|
double d, sl[4]; |
| 24 |
gregl |
3.1 |
register int i; |
| 25 |
|
|
|
| 26 |
|
|
if (!hdbcoord(gc, hdlist[p->hd], p->bi)) |
| 27 |
|
|
error(CONSISTENCY, "bad beam index in packrays"); |
| 28 |
gregl |
3.4 |
ila[0] = p->hd; ila[1] = p->bi; |
| 29 |
|
|
hsh = ilhash(ila,2) + p->nc; |
| 30 |
gregl |
3.1 |
for (i = 0; i < p->nr; i++) { |
| 31 |
gregl |
3.4 |
multisamp(sl, 4, urand(hsh+i)); |
| 32 |
|
|
p->ra[i].r[0][0] = sl[0] * 256.; |
| 33 |
|
|
p->ra[i].r[0][1] = sl[1] * 256.; |
| 34 |
|
|
p->ra[i].r[1][0] = sl[2] * 256.; |
| 35 |
|
|
p->ra[i].r[1][1] = sl[3] * 256.; |
| 36 |
gregl |
3.1 |
d = hdray(ro, rd, hdlist[p->hd], gc, p->ra[i].r); |
| 37 |
|
|
if (p->offset != NULL) { |
| 38 |
|
|
VSUM(ro, ro, rd, d); /* exterior only */ |
| 39 |
|
|
p->offset[i] = d; |
| 40 |
|
|
} |
| 41 |
|
|
VCOPY(rod, ro); |
| 42 |
|
|
rod += 3; |
| 43 |
|
|
VCOPY(rod, rd); |
| 44 |
|
|
rod += 3; |
| 45 |
|
|
} |
| 46 |
|
|
} |
| 47 |
|
|
|
| 48 |
|
|
|
| 49 |
|
|
donerays(p, rvl) /* encode finished ray computations */ |
| 50 |
|
|
register PACKET *p; |
| 51 |
|
|
register float *rvl; |
| 52 |
|
|
{ |
| 53 |
|
|
double d; |
| 54 |
|
|
register int i; |
| 55 |
|
|
|
| 56 |
|
|
for (i = 0; i < p->nr; i++) { |
| 57 |
|
|
setcolr(p->ra[i].v, rvl[0], rvl[1], rvl[2]); |
| 58 |
|
|
d = rvl[3]; |
| 59 |
|
|
if (p->offset != NULL) |
| 60 |
|
|
d += p->offset[i]; |
| 61 |
|
|
p->ra[i].d = hdcode(hdlist[p->hd], d); |
| 62 |
|
|
rvl += 4; |
| 63 |
|
|
} |
| 64 |
gregl |
3.4 |
p->nc += p->nr; |
| 65 |
gregl |
3.5 |
} |
| 66 |
|
|
|
| 67 |
|
|
|
| 68 |
|
|
int |
| 69 |
|
|
done_rtrace() /* clean up and close rtrace calculation */ |
| 70 |
|
|
{ |
| 71 |
|
|
int status; |
| 72 |
|
|
/* already closed? */ |
| 73 |
|
|
if (!nprocs) |
| 74 |
|
|
return; |
| 75 |
|
|
/* report activity */ |
| 76 |
|
|
wputs("closing rtrace process...\n"); |
| 77 |
|
|
/* flush beam queue */ |
| 78 |
|
|
done_packets(flush_queue()); |
| 79 |
|
|
/* close rtrace */ |
| 80 |
|
|
if ((status = end_rtrace())) |
| 81 |
|
|
error(WARNING, "bad exit status from rtrace"); |
| 82 |
|
|
if (vdef(REPORT)) /* report time */ |
| 83 |
|
|
report(0); |
| 84 |
|
|
return(status); /* return status */ |
| 85 |
|
|
} |
| 86 |
|
|
|
| 87 |
|
|
|
| 88 |
|
|
new_rtrace() /* restart rtrace calculation */ |
| 89 |
|
|
{ |
| 90 |
|
|
char combuf[128]; |
| 91 |
|
|
|
| 92 |
|
|
if (nprocs > 0) /* already running? */ |
| 93 |
|
|
return; |
| 94 |
|
|
wputs("restarting rtrace process...\n"); |
| 95 |
|
|
if (vdef(RIF)) { /* rerun rad to update octree */ |
| 96 |
|
|
sprintf(combuf, "rad -v 0 -s -w %s", vval(RIF)); |
| 97 |
|
|
if (system(combuf)) |
| 98 |
|
|
error(WARNING, "error running rad"); |
| 99 |
|
|
} |
| 100 |
|
|
if (start_rtrace() < 1) /* start rtrace */ |
| 101 |
|
|
error(WARNING, "cannot restart rtrace"); |
| 102 |
|
|
else if (vdef(REPORT)) |
| 103 |
|
|
report(0); |
| 104 |
|
|
} |
| 105 |
|
|
|
| 106 |
|
|
|
| 107 |
|
|
getradfile() /* run rad and get needed variables */ |
| 108 |
|
|
{ |
| 109 |
|
|
static short mvar[] = {OCTREE,-1}; |
| 110 |
|
|
static char tf1[] = TEMPLATE; |
| 111 |
|
|
char tf2[64]; |
| 112 |
|
|
char combuf[256]; |
| 113 |
|
|
char *pippt; |
| 114 |
|
|
register int i; |
| 115 |
|
|
register char *cp; |
| 116 |
|
|
/* check if rad file specified */ |
| 117 |
|
|
if (!vdef(RIF)) |
| 118 |
|
|
return; |
| 119 |
|
|
/* create rad command */ |
| 120 |
|
|
mktemp(tf1); |
| 121 |
|
|
sprintf(tf2, "%s.rif", tf1); |
| 122 |
|
|
sprintf(combuf, |
| 123 |
|
|
"rad -v 0 -s -e -w %s OPTFILE=%s | egrep '^[ \t]*(NOMATCH", |
| 124 |
|
|
vval(RIF), tf1); |
| 125 |
|
|
cp = combuf; |
| 126 |
|
|
while (*cp){ |
| 127 |
|
|
if (*cp == '|') pippt = cp; |
| 128 |
|
|
cp++; |
| 129 |
|
|
} /* match unset variables */ |
| 130 |
|
|
for (i = 0; mvar[i] >= 0; i++) |
| 131 |
|
|
if (!vdef(mvar[i])) { |
| 132 |
|
|
*cp++ = '|'; |
| 133 |
|
|
strcpy(cp, vnam(mvar[i])); |
| 134 |
|
|
while (*cp) cp++; |
| 135 |
|
|
pippt = NULL; |
| 136 |
|
|
} |
| 137 |
|
|
if (pippt != NULL) |
| 138 |
|
|
strcpy(pippt, "> /dev/null"); /* nothing to match */ |
| 139 |
|
|
else |
| 140 |
|
|
sprintf(cp, ")[ \t]*=' > %s", tf2); |
| 141 |
|
|
if (system(combuf)) { |
| 142 |
|
|
unlink(tf2); /* clean up */ |
| 143 |
|
|
unlink(tf1); |
| 144 |
|
|
error(SYSTEM, "cannot execute rad command"); |
| 145 |
|
|
} |
| 146 |
|
|
if (pippt == NULL) { |
| 147 |
|
|
loadvars(tf2); /* load variables */ |
| 148 |
|
|
unlink(tf2); |
| 149 |
|
|
} |
| 150 |
|
|
rtargc += wordfile(rtargv+rtargc, tf1); /* get rtrace options */ |
| 151 |
|
|
unlink(tf1); /* clean up */ |
| 152 |
gregl |
3.1 |
} |
