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/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ SGI"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* Routines for loading and displaying Radiance objects in rholo with GLX. |
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*/ |
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#include <string.h> |
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#include "radogl.h" |
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#include "tonemap.h" |
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#include "rhdisp.h" |
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#include "rhdriver.h" |
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#include "rhdobj.h" |
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#include "rtprocess.h" |
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extern FILE *sstdout; /* user standard output */ |
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struct dobject *next; /* next object in list */ |
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char name[64]; /* object name */ |
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FVECT center; /* orig. object center */ |
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FLOAT radius; /* orig. object radius */ |
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RREAL radius; /* orig. object radius */ |
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int listid; /* GL display list identifier */ |
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int rtp[3]; /* associated rtrace process */ |
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int nlists; /* number of lists allocated */ |
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SUBPROC rtp; /* associated rtrace process */ |
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DLIGHTS *ol; /* object lights */ |
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FULLXF xfb; /* coordinate transform */ |
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short drawcode; /* drawing code */ |
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} |
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dobjects = ohead.next; |
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if (!foundlink) { |
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glDeleteLists(op->listid, 1); |
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close_process(op->rtp); |
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glDeleteLists(op->listid, op->nlists); |
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close_process(&(op->rtp)); |
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} |
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while (op->xfac) |
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freestr(op->xfav[--op->xfac]); |
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free((char *)op); |
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free((void *)op); |
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return(1); |
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} |
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/* avg. reflected brightness */ |
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d = AVGREFL / (double)ncells; |
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scalecolor(csum, d); |
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if (tmCvColors(&dlightsets->larb, TM_NOCHROM, csum, 1) != TM_E_OK) |
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if (tmCvColors(&dlightsets->larb, TM_NOCHROM, &csum, 1) != TM_E_OK) |
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error(CONSISTENCY, "tone mapping problem in ssph_compute"); |
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/* greedy light source clustering */ |
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while (dlightsets->nl < MAXLIGHTS) { |
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d = 1.0/ncells; |
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scalecolor(dlightsets->lamb, d); |
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done: /* clear sphere sample array */ |
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bzero((char *)ssamp, sizeof(ssamp)); |
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memset((void *)ssamp, '\0', sizeof(ssamp)); |
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return(ncells); |
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} |
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quit(0); |
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if (!ssph_compute()) { /* compute light sources from sphere */ |
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dlightsets = dl->next; |
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free((char *)dl); |
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free((void *)dl); |
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return(0); |
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} |
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op->ol = dl; |
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} |
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static int |
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static |
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cmderror(cn, err) /* report command error */ |
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int cn; |
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char *err; |
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{ |
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sprintf(errmsg, "%s: %s", rhdcmd[cn], err); |
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error(COMMAND, errmsg); |
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return(cn); |
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} |
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char *cmd; |
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register char *args; |
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{ |
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int somechange = 0; |
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int cn, na, doxfm; |
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register int nn; |
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char *alist[MAXAC+1], *nm; |
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dobj_load(alist[0], alist[0]); |
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else if (na == 2) |
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dobj_load(alist[0], alist[1]); |
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else |
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return(cmderror(cn, "need octree [name]")); |
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else { |
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cmderror(cn, "need octree [name]"); |
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return(0); |
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} |
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break; |
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case DO_UNLOAD: /* clear an object */ |
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if (na > 1) goto toomany; |
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if (na && alist[0][0] == '*') |
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dobj_cleanup(); |
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somechange += dobj_cleanup(); |
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else |
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dobj_unload(na ? alist[0] : curname); |
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somechange += dobj_unload(na ? alist[0] : curname); |
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break; |
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case DO_XFORM: /* transform object */ |
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case DO_MOVE: |
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} else { |
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nm = curname; nn = 0; |
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} |
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if (cn == DO_MOVE && nn >= na) |
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return(cmderror(cn, "missing transform")); |
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dobj_xform(nm, cn==DO_MOVE, na-nn, alist+nn); |
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if (cn == DO_MOVE && nn >= na) { |
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cmderror(cn, "missing transform"); |
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return(0); |
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} |
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somechange += dobj_xform(nm, cn==DO_MOVE, na-nn, alist+nn); |
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break; |
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case DO_UNMOVE: /* undo last transform */ |
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dobj_unmove(); |
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somechange += dobj_unmove(); |
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break; |
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case DO_OBJECT: /* print object statistics */ |
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if (dobj_putstats(na ? alist[0] : curname, sstdout)) |
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break; |
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switch (nn) { |
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case 0: |
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return(cmderror(cn, "need new object name")); |
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cmderror(cn, "need new object name"); |
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return(0); |
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case 1: |
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nm = curname; |
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break; |
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if (!dobj_dup(nm, alist[nn-1])) |
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break; |
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if (na > nn) |
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dobj_xform(curname, 1, na-nn, alist+nn); |
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somechange += dobj_xform(curname, 1, na-nn, alist+nn); |
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else |
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curobj->drawcode = DO_HIDE; |
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savedxf(curobj); |
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case DO_HIDE: |
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if (na > 1) goto toomany; |
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dobj_lighting(na ? alist[0] : curname, cn); |
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somechange++; |
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break; |
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default: |
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error(CONSISTENCY, "bad command id in dobj_command"); |
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} |
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dev_view(&odev.v); /* redraw */ |
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return(cn); |
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return(somechange); |
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toomany: |
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return(cmderror(cn, "too many arguments")); |
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} |
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dobj_load(oct, nam) /* create/load an octree object */ |
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char *oct, *nam; |
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{ |
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extern char *getlibpath(), *getpath(); |
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char *fpp, fpath[128]; |
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register DOBJECT *op; |
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/* check arguments */ |
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return(0); |
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} |
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/* get octree path */ |
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if ((fpp = getpath(oct, getlibpath(), R_OK)) == NULL) { |
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if ((fpp = getpath(oct, getrlibpath(), R_OK)) == NULL) { |
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sprintf(errmsg, "cannot find octree \"%s\"", oct); |
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error(COMMAND, errmsg); |
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return(0); |
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op->xfav[op->xfac=0] = NULL; |
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/* load octree into display list */ |
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dolights = 0; |
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op->listid = rgl_octlist(fpath, op->center, &op->radius); |
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domats = 1; |
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op->listid = rgl_octlist(fpath, op->center, &op->radius, &op->nlists); |
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/* start rtrace */ |
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rtargv[RTARGC-1] = fpath; |
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rtargv[RTARGC] = NULL; |
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open_process(op->rtp, rtargv); |
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open_process(&(op->rtp), rtargv); |
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/* insert into main list */ |
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op->next = dobjects; |
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curobj = dobjects = op; |
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savedxf(curobj = NULL); |
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while ((lp = dlightsets) != NULL) { |
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dlightsets = lp->next; |
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free((char *)lp); |
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free((void *)lp); |
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} |
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return(1); |
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} |
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return(0); |
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} |
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/* hold last transform */ |
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bcopy((char *)lastxfav, (char *)txfav, |
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memcpy((void *)txfav, (void *)lastxfav, |
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(txfac=lastxfac)*sizeof(char *)); |
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/* save this transform */ |
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bcopy((char *)curobj->xfav, (char *)lastxfav, |
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memcpy((void *)lastxfav, (void *)curobj->xfav, |
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(lastxfac=curobj->xfac)*sizeof(char *)); |
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/* copy back last transform */ |
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bcopy((char *)txfav, (char *)curobj->xfav, |
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memcpy((void *)curobj->xfav, (void *)txfav, |
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(curobj->xfac=txfac)*sizeof(char *)); |
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/* set matrices */ |
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fullxf(&curobj->xfb, curobj->xfac, curobj->xfav); |
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VCOPY(darr, rorg); VCOPY(darr+3, rdir); |
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} |
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/* trace it */ |
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if (process(op->rtp, darr, darr, sizeof(double), |
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if (process(&(op->rtp), (char *)darr, (char *)darr, sizeof(double), |
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6*sizeof(double)) != sizeof(double)) |
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error(SYSTEM, "rtrace communication error"); |
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/* return distance */ |
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} |
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int |
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dobj_render() /* render our objects in OpenGL */ |
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{ |
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int nrendered = 0; |
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GLboolean normalizing; |
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GLfloat vec[4]; |
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FVECT v1; |
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if (op->drawcode != DO_HIDE) |
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break; |
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if (op == NULL) |
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return(1); |
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return(0); |
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/* set up general rendering params */ |
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glGetBooleanv(GL_NORMALIZE, &normalizing); |
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glPushAttrib(GL_LIGHTING_BIT|GL_TRANSFORM_BIT|GL_ENABLE_BIT| |
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} |
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/* render the display list */ |
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glCallList(op->listid); |
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nrendered++; |
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/* restore matrix */ |
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if (op->xfac) { |
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glMatrixMode(GL_MODELVIEW); |
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} |
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glPopAttrib(); /* restore rendering params */ |
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rgl_checkerr("rendering objects in dobj_render"); |
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return(1); |
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return(nrendered); |
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} |