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greg |
2.1 |
#ifndef lint
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greg |
2.2 |
static const char RCSid[] = "$Id: rxtrace.cpp,v 2.1 2023/08/21 22:39:05 greg Exp $";
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greg |
2.1 |
#endif
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/*
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* C++ module for individual ray tracing.
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*/
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/*
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* Input is in the form:
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*
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* xorg yorg zorg xdir ydir zdir
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*
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* The direction need not be normalized. Output is flexible.
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* If the direction vector is (0,0,0), then the output is flushed.
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* All values default to ascii representation of real
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* numbers. Binary representations can be selected
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* with '-ff' for float or '-fd' for double. By default,
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* radiance is computed. The '-i' or '-I' options indicate that
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* irradiance values are desired.
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*/
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#include "copyright.h"
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#include "RtraceSimulManager.h"
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#include "platform.h"
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#include "otypes.h"
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#include "otspecial.h"
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#include "source.h"
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#include "resolu.h"
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extern int inform; /* input format */
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extern int outform; /* output format */
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extern char *tralist[]; /* list of modifers to trace (or no) */
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extern int traincl; /* include == 1, exclude == 0 */
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extern int hresolu; /* horizontal resolution */
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extern int vresolu; /* vertical resolution */
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extern int castonly; /* only doing ray-casting? */
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#ifndef MAXTSET
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#define MAXTSET 8191 /* maximum number in trace set */
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#endif
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OBJECT traset[MAXTSET+1]={0}; /* trace include/exclude set */
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// global simulation manager
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extern RtraceSimulManager myRTmanager;
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static FILE *inpfp = NULL; /* input stream pointer */
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static FVECT *inp_queue = NULL; /* ray input queue if flushing */
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static int inp_qpos = 0; /* next ray to return */
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static int inp_qend = 0; /* number of rays in this work group */
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typedef void putf_t(RREAL *v, int n);
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static putf_t puta, putd, putf, putrgbe;
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typedef void oputf_t(RAY *r);
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static oputf_t oputo, oputd, oputv, oputV, oputl, oputL, oputc, oputp,
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oputr, oputR, oputx, oputX, oputn, oputN, oputs,
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oputw, oputW, oputm, oputM, oputtilde;
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extern void tranotify(OBJECT obj);
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static void tabin(RAY *r);
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static RayReportCall ourtrace;
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static RayReportCall printvals;
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static oputf_t *ray_out[32], *every_out[32];
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static putf_t *putreal;
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void
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quit( /* quit program */
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int code
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)
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{
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int ec = myRTmanager.Cleanup();
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if (ec) code = ec;
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exit(code);
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}
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const char *
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formstr( /* return format identifier */
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int f
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)
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{
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switch (f) {
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case 'a': return("ascii");
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case 'f': return("float");
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case 'd': return("double");
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case 'c': return(COLRFMT);
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}
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return("unknown");
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}
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static bool
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getvec( /* get a vector from fp */
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FVECT vec,
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int fmt,
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FILE *fp
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)
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{
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static char buf[32];
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float * vf = (float *)buf;
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double * vd = (double *)buf;
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int i;
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| 109 |
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| 110 |
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switch (fmt) {
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case 'a': /* ascii */
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for (i = 0; i < 3; i++) {
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if (fgetword(buf, sizeof(buf), fp) == NULL ||
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!isflt(buf))
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return false;
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| 116 |
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vec[i] = atof(buf);
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}
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break;
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#ifdef SMLFLT
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case 'f': /* binary float */
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if (getbinary(vec, sizeof(RREAL), 3, fp) != 3)
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return false;
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break;
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| 124 |
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case 'd': /* binary double */
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if (getbinary(vd, sizeof(double), 3, fp) != 3)
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| 126 |
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return false;
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| 127 |
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VCOPY(vec, vd);
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break;
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| 129 |
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#else
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case 'f': /* binary float */
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if (getbinary(vf, sizeof(float), 3, fp) != 3)
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return false;
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VCOPY(vec, vf);
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break;
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| 135 |
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case 'd': /* binary double */
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if (getbinary(vec, sizeof(RREAL), 3, fp) != 3)
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return false;
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| 138 |
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break;
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| 139 |
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#endif
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| 140 |
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default:
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error(CONSISTENCY, "botched input format");
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| 142 |
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}
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| 143 |
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return true;
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| 144 |
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}
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| 145 |
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| 146 |
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// read ray list from inpfp
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static int
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getrays(FVECT org_dir[], int n)
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{
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| 150 |
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int nread = 0;
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| 152 |
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while (n-- > 0) {
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if (!getvec(org_dir[0], inform, inpfp) ||
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!getvec(org_dir[1], inform, inpfp))
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break;
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| 156 |
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++nread;
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| 157 |
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if (IsZeroVec(org_dir[1]))
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| 158 |
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break;
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| 159 |
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org_dir += 2;
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| 160 |
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}
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| 161 |
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return nread;
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| 162 |
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}
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| 163 |
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| 164 |
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void
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rtrace( /* trace rays from stdin or file */
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| 166 |
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char *fname,
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| 167 |
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int nproc
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| 168 |
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)
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| 169 |
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{
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| 170 |
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RNUMBER vcount = (hresolu > 1) ? (RNUMBER)hresolu*vresolu
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: (RNUMBER)vresolu;
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| 172 |
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const int flushIntvl = (!vresolu | (hresolu <= 1)) * hresolu;
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| 173 |
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FVECT * ivbuf = (FVECT *)malloc(2*sizeof(FVECT) *
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| 174 |
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(flushIntvl + !flushIntvl));
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if (ivbuf == NULL)
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error(SYSTEM, "cannot allocate input vector buffer");
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| 177 |
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/* set up input */
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if (fname == NULL)
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inpfp = stdin;
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| 180 |
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else if ((inpfp = fopen(fname, "r")) == NULL) {
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sprintf(errmsg, "cannot open input file \"%s\"", fname);
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error(SYSTEM, errmsg);
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| 183 |
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}
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| 184 |
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#ifdef getc_unlocked
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flockfile(inpfp); /* avoid lock/unlock overhead */
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| 186 |
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#endif
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| 187 |
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if (inform != 'a')
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SET_FILE_BINARY(inpfp);
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| 189 |
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/* set up output */
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| 190 |
greg |
2.2 |
if (castonly || every_out[0] != NULL) {
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greg |
2.1 |
nproc = 1; /* don't bother multiprocessing */
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greg |
2.2 |
} else if (nproc <= 0) { // need to get default for system?
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nproc = myRTmanager.GetNCores() + nproc;
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| 194 |
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if (nproc <= 0) nproc = 1;
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}
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greg |
2.1 |
if ((flushIntvl > 0) & (nproc > flushIntvl)) {
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error(WARNING, "reducing number of processes to match flush interval");
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| 198 |
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nproc = flushIntvl;
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| 199 |
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}
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| 200 |
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nproc = myRTmanager.SetThreadCount(nproc);
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| 201 |
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if (ray_out[0])
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myRTmanager.SetCookedCall(printvals);
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| 203 |
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if (every_out[0])
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myRTmanager.SetTraceCall(ourtrace);
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myRTmanager.rtFlags |= RTdoFIFO;
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| 206 |
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if (hresolu > 0) { // print resolution string if appropriate
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if (vresolu > 0)
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| 208 |
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fprtresolu(hresolu, vresolu, stdout);
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| 209 |
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else
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| 210 |
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fflush(stdout);
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| 211 |
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}
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| 212 |
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int n; /* process input rays */
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| 213 |
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bool pending = false;
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| 214 |
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while ((n = getrays(ivbuf, flushIntvl + !flushIntvl)) > 0) {
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| 215 |
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if ((vcount > 0) & (n > vcount)) {
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| 216 |
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error(WARNING, "extra ray(s) past end of input");
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| 217 |
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n = vcount;
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| 218 |
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} // put ray(s) into queue
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| 219 |
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if (myRTmanager.EnqueueBundle(ivbuf, n) < n)
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| 220 |
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error(USER, "ray queuing failure");
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| 221 |
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pending |= (n > 1); // time to flush output?
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| 222 |
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bool atZero = IsZeroVec(ivbuf[2*n-1]);
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| 223 |
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if (pending & (atZero | (n == flushIntvl))) {
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| 224 |
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if (!myRTmanager.FlushQueue())
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| 225 |
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error(USER, "ray flush error");
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| 226 |
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fflush(stdout);
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| 227 |
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pending = false;
|
| 228 |
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} else
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| 229 |
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pending |= !atZero;
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| 230 |
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if (ferror(stdout))
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| 231 |
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error(SYSTEM, "write error");
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| 232 |
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if (vcount && !(vcount -= n)) /* check for end */
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| 233 |
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break;
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| 234 |
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}
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| 235 |
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if (vcount)
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| 236 |
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error(WARNING, feof(inpfp) ? "unexpected EOF on input" :
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| 237 |
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"input read error");
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| 238 |
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if (fflush(stdout) < 0)
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| 239 |
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error(SYSTEM, "write error");
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| 240 |
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if (fname != NULL) {
|
| 241 |
|
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fclose(inpfp);
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| 242 |
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inpfp = NULL;
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| 243 |
|
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}
|
| 244 |
|
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free(ivbuf);
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| 245 |
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}
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| 246 |
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| 247 |
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int
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| 248 |
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setrtoutput(const char *outvals) /* set up output tables, return #comp */
|
| 249 |
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{
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| 250 |
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const char *vs = outvals;
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| 251 |
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oputf_t **table = ray_out;
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| 252 |
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int ncomp = 0;
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| 253 |
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| 254 |
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if (!*vs)
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| 255 |
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error(USER, "empty output specification");
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| 256 |
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| 257 |
|
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switch (outform) { /* make sure (*putreal)() calls someone! */
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| 258 |
|
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case 'a': putreal = puta; break;
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| 259 |
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case 'f': putreal = putf; break;
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| 260 |
|
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case 'd': putreal = putd; break;
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| 261 |
|
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case 'c':
|
| 262 |
|
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if (outvals[1] || !strchr("vrx", outvals[0]))
|
| 263 |
|
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error(USER, "color format only with -ov, -or, -ox");
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| 264 |
|
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putreal = putrgbe; break;
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| 265 |
|
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default:
|
| 266 |
|
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error(CONSISTENCY, "botched output format");
|
| 267 |
|
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}
|
| 268 |
|
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castonly = 1; /* sets castonly as side-effect */
|
| 269 |
|
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do
|
| 270 |
|
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switch (*vs) {
|
| 271 |
|
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case 'T': /* trace sources */
|
| 272 |
|
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myRTmanager.rtFlags |= RTtraceSources;
|
| 273 |
|
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/* fall through */
|
| 274 |
|
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case 't': /* trace */
|
| 275 |
|
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if (!vs[1]) break;
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| 276 |
|
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*table = NULL;
|
| 277 |
|
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table = every_out;
|
| 278 |
|
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castonly = 0;
|
| 279 |
|
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break;
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| 280 |
|
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case 'o': /* origin */
|
| 281 |
|
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*table++ = oputo;
|
| 282 |
|
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ncomp += 3;
|
| 283 |
|
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break;
|
| 284 |
|
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case 'd': /* direction */
|
| 285 |
|
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*table++ = oputd;
|
| 286 |
|
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ncomp += 3;
|
| 287 |
|
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break;
|
| 288 |
|
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case 'r': /* reflected contrib. */
|
| 289 |
|
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*table++ = oputr;
|
| 290 |
|
|
ncomp += 3;
|
| 291 |
|
|
castonly = 0;
|
| 292 |
|
|
break;
|
| 293 |
|
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case 'R': /* reflected distance */
|
| 294 |
|
|
*table++ = oputR;
|
| 295 |
|
|
ncomp++;
|
| 296 |
|
|
castonly = 0;
|
| 297 |
|
|
break;
|
| 298 |
|
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case 'x': /* xmit contrib. */
|
| 299 |
|
|
*table++ = oputx;
|
| 300 |
|
|
ncomp += 3;
|
| 301 |
|
|
castonly = 0;
|
| 302 |
|
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break;
|
| 303 |
|
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case 'X': /* xmit distance */
|
| 304 |
|
|
*table++ = oputX;
|
| 305 |
|
|
ncomp++;
|
| 306 |
|
|
castonly = 0;
|
| 307 |
|
|
break;
|
| 308 |
|
|
case 'v': /* value */
|
| 309 |
|
|
*table++ = oputv;
|
| 310 |
|
|
ncomp += 3;
|
| 311 |
|
|
castonly = 0;
|
| 312 |
|
|
break;
|
| 313 |
|
|
case 'V': /* contribution */
|
| 314 |
|
|
*table++ = oputV;
|
| 315 |
|
|
ncomp += 3;
|
| 316 |
|
|
castonly = 0;
|
| 317 |
|
|
if (ambounce > 0 && (ambacc > FTINY || ambssamp > 0))
|
| 318 |
|
|
error(WARNING,
|
| 319 |
|
|
"-otV accuracy depends on -aa 0 -as 0");
|
| 320 |
|
|
break;
|
| 321 |
|
|
case 'l': /* effective distance */
|
| 322 |
|
|
*table++ = oputl;
|
| 323 |
|
|
ncomp++;
|
| 324 |
|
|
castonly = 0;
|
| 325 |
|
|
break;
|
| 326 |
|
|
case 'c': /* local coordinates */
|
| 327 |
|
|
*table++ = oputc;
|
| 328 |
|
|
ncomp += 2;
|
| 329 |
|
|
break;
|
| 330 |
|
|
case 'L': /* single ray length */
|
| 331 |
|
|
*table++ = oputL;
|
| 332 |
|
|
ncomp++;
|
| 333 |
|
|
break;
|
| 334 |
|
|
case 'p': /* point */
|
| 335 |
|
|
*table++ = oputp;
|
| 336 |
|
|
ncomp += 3;
|
| 337 |
|
|
break;
|
| 338 |
|
|
case 'n': /* perturbed normal */
|
| 339 |
|
|
*table++ = oputn;
|
| 340 |
|
|
ncomp += 3;
|
| 341 |
|
|
castonly = 0;
|
| 342 |
|
|
break;
|
| 343 |
|
|
case 'N': /* unperturbed normal */
|
| 344 |
|
|
*table++ = oputN;
|
| 345 |
|
|
ncomp += 3;
|
| 346 |
|
|
break;
|
| 347 |
|
|
case 's': /* surface */
|
| 348 |
|
|
*table++ = oputs;
|
| 349 |
|
|
ncomp++;
|
| 350 |
|
|
break;
|
| 351 |
|
|
case 'w': /* weight */
|
| 352 |
|
|
*table++ = oputw;
|
| 353 |
|
|
ncomp++;
|
| 354 |
|
|
break;
|
| 355 |
|
|
case 'W': /* coefficient */
|
| 356 |
|
|
*table++ = oputW;
|
| 357 |
|
|
ncomp += 3;
|
| 358 |
|
|
castonly = 0;
|
| 359 |
|
|
if (ambounce > 0 && (ambacc > FTINY) | (ambssamp > 0))
|
| 360 |
|
|
error(WARNING,
|
| 361 |
|
|
"-otW accuracy depends on -aa 0 -as 0");
|
| 362 |
|
|
break;
|
| 363 |
|
|
case 'm': /* modifier */
|
| 364 |
|
|
*table++ = oputm;
|
| 365 |
|
|
ncomp++;
|
| 366 |
|
|
break;
|
| 367 |
|
|
case 'M': /* material */
|
| 368 |
|
|
*table++ = oputM;
|
| 369 |
|
|
ncomp++;
|
| 370 |
|
|
break;
|
| 371 |
|
|
case '~': /* tilde */
|
| 372 |
|
|
*table++ = oputtilde;
|
| 373 |
|
|
break;
|
| 374 |
|
|
default:
|
| 375 |
|
|
sprintf(errmsg, "unrecognized output option '%c'", *vs);
|
| 376 |
|
|
error(USER, errmsg);
|
| 377 |
|
|
}
|
| 378 |
|
|
while (*++vs);
|
| 379 |
|
|
|
| 380 |
|
|
*table = NULL;
|
| 381 |
|
|
if (*every_out != NULL)
|
| 382 |
|
|
ncomp = 0;
|
| 383 |
|
|
/* compatibility */
|
| 384 |
|
|
if ((do_irrad | (myRTmanager.rtFlags & RTimmIrrad)) && castonly)
|
| 385 |
|
|
error(USER, "-I+ and -i+ options require some value output");
|
| 386 |
|
|
for (table = ray_out; *table != NULL; table++) {
|
| 387 |
|
|
if ((*table == oputV) | (*table == oputW))
|
| 388 |
|
|
error(WARNING, "-oVW options require trace mode");
|
| 389 |
|
|
if ((do_irrad | (myRTmanager.rtFlags & RTimmIrrad)) &&
|
| 390 |
|
|
(*table == oputr) | (*table == oputR) |
|
| 391 |
|
|
(*table == oputx) | (*table == oputX))
|
| 392 |
|
|
error(WARNING, "-orRxX options incompatible with -I+ and -i+");
|
| 393 |
|
|
}
|
| 394 |
|
|
return(ncomp);
|
| 395 |
|
|
}
|
| 396 |
|
|
|
| 397 |
|
|
static void
|
| 398 |
|
|
printvals( /* print requested ray values */
|
| 399 |
|
|
RAY *r, void *cd
|
| 400 |
|
|
)
|
| 401 |
|
|
{
|
| 402 |
|
|
oputf_t **tp;
|
| 403 |
|
|
|
| 404 |
|
|
if (ray_out[0] == NULL)
|
| 405 |
|
|
return;
|
| 406 |
|
|
#ifdef getc_unlocked
|
| 407 |
|
|
flockfile(stdout);
|
| 408 |
|
|
#endif
|
| 409 |
|
|
for (tp = ray_out; *tp != NULL; tp++)
|
| 410 |
|
|
(**tp)(r);
|
| 411 |
|
|
if (outform == 'a')
|
| 412 |
|
|
putchar('\n');
|
| 413 |
|
|
#ifdef getc_unlocked
|
| 414 |
|
|
funlockfile(stdout);
|
| 415 |
|
|
#endif
|
| 416 |
|
|
}
|
| 417 |
|
|
|
| 418 |
|
|
void
|
| 419 |
|
|
tranotify( /* record new modifier */
|
| 420 |
|
|
OBJECT obj
|
| 421 |
|
|
)
|
| 422 |
|
|
{
|
| 423 |
|
|
static int hitlimit = 0;
|
| 424 |
|
|
OBJREC *o = objptr(obj);
|
| 425 |
|
|
char **tralp;
|
| 426 |
|
|
|
| 427 |
|
|
if (obj == OVOID) { /* starting over */
|
| 428 |
|
|
traset[0] = 0;
|
| 429 |
|
|
hitlimit = 0;
|
| 430 |
|
|
return;
|
| 431 |
|
|
}
|
| 432 |
|
|
if (hitlimit || !ismodifier(o->otype))
|
| 433 |
|
|
return;
|
| 434 |
|
|
for (tralp = tralist; *tralp != NULL; tralp++)
|
| 435 |
|
|
if (!strcmp(o->oname, *tralp)) {
|
| 436 |
|
|
if (traset[0] >= MAXTSET) {
|
| 437 |
|
|
error(WARNING, "too many modifiers in trace list");
|
| 438 |
|
|
hitlimit++;
|
| 439 |
|
|
return; /* should this be fatal? */
|
| 440 |
|
|
}
|
| 441 |
|
|
insertelem(traset, obj);
|
| 442 |
|
|
return;
|
| 443 |
|
|
}
|
| 444 |
|
|
}
|
| 445 |
|
|
|
| 446 |
|
|
static void
|
| 447 |
|
|
ourtrace( /* print ray values */
|
| 448 |
|
|
RAY *r, void *cd
|
| 449 |
|
|
)
|
| 450 |
|
|
{
|
| 451 |
|
|
oputf_t **tp;
|
| 452 |
|
|
|
| 453 |
|
|
if (every_out[0] == NULL)
|
| 454 |
|
|
return;
|
| 455 |
|
|
if (r->ro == NULL) {
|
| 456 |
|
|
if (traincl == 1)
|
| 457 |
|
|
return;
|
| 458 |
|
|
} else if (traincl != -1 && traincl != inset(traset, r->ro->omod))
|
| 459 |
|
|
return;
|
| 460 |
|
|
#ifdef getc_unlocked
|
| 461 |
|
|
flockfile(stdout);
|
| 462 |
|
|
#endif
|
| 463 |
|
|
tabin(r);
|
| 464 |
|
|
for (tp = every_out; *tp != NULL; tp++)
|
| 465 |
|
|
(**tp)(r);
|
| 466 |
|
|
if (outform == 'a')
|
| 467 |
|
|
putchar('\n');
|
| 468 |
|
|
#ifdef getc_unlocked
|
| 469 |
|
|
funlockfile(stdout);
|
| 470 |
|
|
#endif
|
| 471 |
|
|
}
|
| 472 |
|
|
|
| 473 |
|
|
static void
|
| 474 |
|
|
tabin( /* tab in appropriate amount */
|
| 475 |
|
|
RAY *r
|
| 476 |
|
|
)
|
| 477 |
|
|
{
|
| 478 |
|
|
const RAY *rp;
|
| 479 |
|
|
|
| 480 |
|
|
for (rp = r->parent; rp != NULL; rp = rp->parent)
|
| 481 |
|
|
putchar('\t');
|
| 482 |
|
|
}
|
| 483 |
|
|
|
| 484 |
|
|
static void
|
| 485 |
|
|
oputo( /* print origin */
|
| 486 |
|
|
RAY *r
|
| 487 |
|
|
)
|
| 488 |
|
|
{
|
| 489 |
|
|
(*putreal)(r->rorg, 3);
|
| 490 |
|
|
}
|
| 491 |
|
|
|
| 492 |
|
|
static void
|
| 493 |
|
|
oputd( /* print direction */
|
| 494 |
|
|
RAY *r
|
| 495 |
|
|
)
|
| 496 |
|
|
{
|
| 497 |
|
|
(*putreal)(r->rdir, 3);
|
| 498 |
|
|
}
|
| 499 |
|
|
|
| 500 |
|
|
static void
|
| 501 |
|
|
oputr( /* print mirrored contribution */
|
| 502 |
|
|
RAY *r
|
| 503 |
|
|
)
|
| 504 |
|
|
{
|
| 505 |
|
|
RREAL cval[3];
|
| 506 |
|
|
|
| 507 |
|
|
cval[0] = colval(r->mcol,RED);
|
| 508 |
|
|
cval[1] = colval(r->mcol,GRN);
|
| 509 |
|
|
cval[2] = colval(r->mcol,BLU);
|
| 510 |
|
|
(*putreal)(cval, 3);
|
| 511 |
|
|
}
|
| 512 |
|
|
|
| 513 |
|
|
static void
|
| 514 |
|
|
oputR( /* print mirrored distance */
|
| 515 |
|
|
RAY *r
|
| 516 |
|
|
)
|
| 517 |
|
|
{
|
| 518 |
|
|
(*putreal)(&r->rmt, 1);
|
| 519 |
|
|
}
|
| 520 |
|
|
|
| 521 |
|
|
static void
|
| 522 |
|
|
oputx( /* print unmirrored contribution */
|
| 523 |
|
|
RAY *r
|
| 524 |
|
|
)
|
| 525 |
|
|
{
|
| 526 |
|
|
RREAL cval[3];
|
| 527 |
|
|
|
| 528 |
|
|
cval[0] = colval(r->rcol,RED) - colval(r->mcol,RED);
|
| 529 |
|
|
cval[1] = colval(r->rcol,GRN) - colval(r->mcol,GRN);
|
| 530 |
|
|
cval[2] = colval(r->rcol,BLU) - colval(r->mcol,BLU);
|
| 531 |
|
|
(*putreal)(cval, 3);
|
| 532 |
|
|
}
|
| 533 |
|
|
|
| 534 |
|
|
static void
|
| 535 |
|
|
oputX( /* print unmirrored distance */
|
| 536 |
|
|
RAY *r
|
| 537 |
|
|
)
|
| 538 |
|
|
{
|
| 539 |
|
|
(*putreal)(&r->rxt, 1);
|
| 540 |
|
|
}
|
| 541 |
|
|
|
| 542 |
|
|
static void
|
| 543 |
|
|
oputv( /* print value */
|
| 544 |
|
|
RAY *r
|
| 545 |
|
|
)
|
| 546 |
|
|
{
|
| 547 |
|
|
RREAL cval[3];
|
| 548 |
|
|
|
| 549 |
|
|
cval[0] = colval(r->rcol,RED);
|
| 550 |
|
|
cval[1] = colval(r->rcol,GRN);
|
| 551 |
|
|
cval[2] = colval(r->rcol,BLU);
|
| 552 |
|
|
(*putreal)(cval, 3);
|
| 553 |
|
|
}
|
| 554 |
|
|
|
| 555 |
|
|
static void
|
| 556 |
|
|
oputV( /* print value contribution */
|
| 557 |
|
|
RAY *r
|
| 558 |
|
|
)
|
| 559 |
|
|
{
|
| 560 |
|
|
RREAL contr[3];
|
| 561 |
|
|
|
| 562 |
|
|
raycontrib(contr, r, PRIMARY);
|
| 563 |
|
|
multcolor(contr, r->rcol);
|
| 564 |
|
|
(*putreal)(contr, 3);
|
| 565 |
|
|
}
|
| 566 |
|
|
|
| 567 |
|
|
static void
|
| 568 |
|
|
oputl( /* print effective distance */
|
| 569 |
|
|
RAY *r
|
| 570 |
|
|
)
|
| 571 |
|
|
{
|
| 572 |
|
|
RREAL d = raydistance(r);
|
| 573 |
|
|
|
| 574 |
|
|
(*putreal)(&d, 1);
|
| 575 |
|
|
}
|
| 576 |
|
|
|
| 577 |
|
|
static void
|
| 578 |
|
|
oputL( /* print single ray length */
|
| 579 |
|
|
RAY *r
|
| 580 |
|
|
)
|
| 581 |
|
|
{
|
| 582 |
|
|
(*putreal)(&r->rot, 1);
|
| 583 |
|
|
}
|
| 584 |
|
|
|
| 585 |
|
|
static void
|
| 586 |
|
|
oputc( /* print local coordinates */
|
| 587 |
|
|
RAY *r
|
| 588 |
|
|
)
|
| 589 |
|
|
{
|
| 590 |
|
|
(*putreal)(r->uv, 2);
|
| 591 |
|
|
}
|
| 592 |
|
|
|
| 593 |
|
|
static RREAL vdummy[3] = {0.0, 0.0, 0.0};
|
| 594 |
|
|
|
| 595 |
|
|
static void
|
| 596 |
|
|
oputp( /* print intersection point */
|
| 597 |
|
|
RAY *r
|
| 598 |
|
|
)
|
| 599 |
|
|
{
|
| 600 |
|
|
(*putreal)(r->rop, 3); /* set to ray origin if distant or no hit */
|
| 601 |
|
|
}
|
| 602 |
|
|
|
| 603 |
|
|
static void
|
| 604 |
|
|
oputN( /* print unperturbed normal */
|
| 605 |
|
|
RAY *r
|
| 606 |
|
|
)
|
| 607 |
|
|
{
|
| 608 |
|
|
if (r->ro == NULL) { /* zero vector if clipped or no hit */
|
| 609 |
|
|
(*putreal)(vdummy, 3);
|
| 610 |
|
|
return;
|
| 611 |
|
|
}
|
| 612 |
|
|
if (r->rflips & 1) { /* undo any flippin' flips */
|
| 613 |
|
|
FVECT unrm;
|
| 614 |
|
|
unrm[0] = -r->ron[0];
|
| 615 |
|
|
unrm[1] = -r->ron[1];
|
| 616 |
|
|
unrm[2] = -r->ron[2];
|
| 617 |
|
|
(*putreal)(unrm, 3);
|
| 618 |
|
|
} else
|
| 619 |
|
|
(*putreal)(r->ron, 3);
|
| 620 |
|
|
}
|
| 621 |
|
|
|
| 622 |
|
|
static void
|
| 623 |
|
|
oputn( /* print perturbed normal */
|
| 624 |
|
|
RAY *r
|
| 625 |
|
|
)
|
| 626 |
|
|
{
|
| 627 |
|
|
FVECT pnorm;
|
| 628 |
|
|
|
| 629 |
|
|
if (r->ro == NULL) { /* clipped or no hit */
|
| 630 |
|
|
(*putreal)(vdummy, 3);
|
| 631 |
|
|
return;
|
| 632 |
|
|
}
|
| 633 |
|
|
raynormal(pnorm, r);
|
| 634 |
|
|
(*putreal)(pnorm, 3);
|
| 635 |
|
|
}
|
| 636 |
|
|
|
| 637 |
|
|
static void
|
| 638 |
|
|
oputs( /* print name */
|
| 639 |
|
|
RAY *r
|
| 640 |
|
|
)
|
| 641 |
|
|
{
|
| 642 |
|
|
if (r->ro != NULL)
|
| 643 |
|
|
fputs(r->ro->oname, stdout);
|
| 644 |
|
|
else
|
| 645 |
|
|
putchar('*');
|
| 646 |
|
|
putchar('\t');
|
| 647 |
|
|
}
|
| 648 |
|
|
|
| 649 |
|
|
static void
|
| 650 |
|
|
oputw( /* print weight */
|
| 651 |
|
|
RAY *r
|
| 652 |
|
|
)
|
| 653 |
|
|
{
|
| 654 |
|
|
RREAL rwt = r->rweight;
|
| 655 |
|
|
|
| 656 |
|
|
(*putreal)(&rwt, 1);
|
| 657 |
|
|
}
|
| 658 |
|
|
|
| 659 |
|
|
static void
|
| 660 |
|
|
oputW( /* print coefficient */
|
| 661 |
|
|
RAY *r
|
| 662 |
|
|
)
|
| 663 |
|
|
{
|
| 664 |
|
|
RREAL contr[3];
|
| 665 |
|
|
/* shadow ray not on source? */
|
| 666 |
|
|
if (r->rsrc >= 0 && source[r->rsrc].so != r->ro)
|
| 667 |
|
|
setcolor(contr, 0.0, 0.0, 0.0);
|
| 668 |
|
|
else
|
| 669 |
|
|
raycontrib(contr, r, PRIMARY);
|
| 670 |
|
|
|
| 671 |
|
|
(*putreal)(contr, 3);
|
| 672 |
|
|
}
|
| 673 |
|
|
|
| 674 |
|
|
static void
|
| 675 |
|
|
oputm( /* print modifier */
|
| 676 |
|
|
RAY *r
|
| 677 |
|
|
)
|
| 678 |
|
|
{
|
| 679 |
|
|
if (r->ro != NULL)
|
| 680 |
|
|
if (r->ro->omod != OVOID)
|
| 681 |
|
|
fputs(objptr(r->ro->omod)->oname, stdout);
|
| 682 |
|
|
else
|
| 683 |
|
|
fputs(VOIDID, stdout);
|
| 684 |
|
|
else
|
| 685 |
|
|
putchar('*');
|
| 686 |
|
|
putchar('\t');
|
| 687 |
|
|
}
|
| 688 |
|
|
|
| 689 |
|
|
static void
|
| 690 |
|
|
oputM( /* print material */
|
| 691 |
|
|
RAY *r
|
| 692 |
|
|
)
|
| 693 |
|
|
{
|
| 694 |
|
|
OBJREC *mat;
|
| 695 |
|
|
|
| 696 |
|
|
if (r->ro != NULL) {
|
| 697 |
|
|
if ((mat = findmaterial(r->ro)) != NULL)
|
| 698 |
|
|
fputs(mat->oname, stdout);
|
| 699 |
|
|
else
|
| 700 |
|
|
fputs(VOIDID, stdout);
|
| 701 |
|
|
} else
|
| 702 |
|
|
putchar('*');
|
| 703 |
|
|
putchar('\t');
|
| 704 |
|
|
}
|
| 705 |
|
|
|
| 706 |
|
|
static void
|
| 707 |
|
|
oputtilde( /* output tilde (spacer) */
|
| 708 |
|
|
RAY *r
|
| 709 |
|
|
)
|
| 710 |
|
|
{
|
| 711 |
|
|
fputs("~\t", stdout);
|
| 712 |
|
|
}
|
| 713 |
|
|
|
| 714 |
|
|
static void
|
| 715 |
|
|
puta( /* print ascii value(s) */
|
| 716 |
|
|
RREAL *v, int n
|
| 717 |
|
|
)
|
| 718 |
|
|
{
|
| 719 |
|
|
if (n == 3) {
|
| 720 |
|
|
printf("%e\t%e\t%e\t", v[0], v[1], v[2]);
|
| 721 |
|
|
return;
|
| 722 |
|
|
}
|
| 723 |
|
|
while (n--)
|
| 724 |
|
|
printf("%e\t", *v++);
|
| 725 |
|
|
}
|
| 726 |
|
|
|
| 727 |
|
|
static void
|
| 728 |
|
|
putd(RREAL *v, int n) /* output binary double(s) */
|
| 729 |
|
|
{
|
| 730 |
|
|
#ifdef SMLFLT
|
| 731 |
|
|
double da[3];
|
| 732 |
|
|
int i;
|
| 733 |
|
|
|
| 734 |
|
|
if (n > 3)
|
| 735 |
|
|
error(INTERNAL, "code error in putd()");
|
| 736 |
|
|
for (i = n; i--; )
|
| 737 |
|
|
da[i] = v[i];
|
| 738 |
|
|
putbinary(da, sizeof(double), n, stdout);
|
| 739 |
|
|
#else
|
| 740 |
|
|
putbinary(v, sizeof(RREAL), n, stdout);
|
| 741 |
|
|
#endif
|
| 742 |
|
|
}
|
| 743 |
|
|
|
| 744 |
|
|
static void
|
| 745 |
|
|
putf(RREAL *v, int n) /* output binary float(s) */
|
| 746 |
|
|
{
|
| 747 |
|
|
#ifndef SMLFLT
|
| 748 |
|
|
float fa[3];
|
| 749 |
|
|
int i;
|
| 750 |
|
|
|
| 751 |
|
|
if (n > 3)
|
| 752 |
|
|
error(INTERNAL, "code error in putf()");
|
| 753 |
|
|
for (i = n; i--; )
|
| 754 |
|
|
fa[i] = v[i];
|
| 755 |
|
|
putbinary(fa, sizeof(float), n, stdout);
|
| 756 |
|
|
#else
|
| 757 |
|
|
putbinary(v, sizeof(RREAL), n, stdout);
|
| 758 |
|
|
#endif
|
| 759 |
|
|
}
|
| 760 |
|
|
|
| 761 |
|
|
static void
|
| 762 |
|
|
putrgbe(RREAL *v, int n) /* output RGBE color */
|
| 763 |
|
|
{
|
| 764 |
|
|
COLR cout;
|
| 765 |
|
|
|
| 766 |
|
|
if (n != 3)
|
| 767 |
|
|
error(INTERNAL, "putrgbe() not called with 3 components");
|
| 768 |
|
|
setcolr(cout, v[0], v[1], v[2]);
|
| 769 |
|
|
putbinary(cout, sizeof(cout), 1, stdout);
|
| 770 |
|
|
}
|
