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gwlarson |
3.1 |
/* 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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#endif |
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/* |
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gwlarson |
3.5 |
* Routines for loading and displaying Radiance objects in rholo with GLX. |
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gwlarson |
3.1 |
*/ |
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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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extern FILE *sstdout; /* user standard output */ |
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char rhdcmd[DO_NCMDS][8] = DO_INIT; /* user command list */ |
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int (*dobj_lightsamp)() = NULL; /* pointer to function to get lights */ |
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#define AVGREFL 0.5 /* assumed average reflectance */ |
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gwlarson |
3.6 |
#define MAXAC 512 /* maximum number of args */ |
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gwlarson |
3.1 |
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#ifndef MINTHRESH |
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gwlarson |
3.2 |
#define MINTHRESH 5.0 /* source threshold w.r.t. mean */ |
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gwlarson |
3.1 |
#endif |
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#ifndef NALT |
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#define NALT 11 /* # sampling altitude angles */ |
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#endif |
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#ifndef NAZI |
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#define NAZI ((int)(PI/2.*NALT+.5)) |
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#endif |
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typedef struct dlights { |
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struct dlights *next; /* next in lighting set list */ |
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FVECT lcent; /* computed lighting center */ |
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double ravg; /* harmonic mean free range radius */ |
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TMbright larb; /* average reflected brightness */ |
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COLOR lamb; /* local ambient value */ |
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short nl; /* number of lights in this set */ |
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struct lsource { |
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FVECT direc; /* source direction */ |
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double omega; /* source solid angle */ |
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COLOR val; /* source color */ |
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} li[MAXLIGHTS]; /* light sources */ |
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} DLIGHTS; /* a light source set */ |
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typedef struct dobject { |
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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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int listid; /* GL display list identifier */ |
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gwlarson |
3.10 |
int nlists; /* number of lists allocated */ |
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gwlarson |
3.1 |
int rtp[3]; /* 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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short xfac; /* transform argument count */ |
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char *xfav[MAXAC+1]; /* transform args */ |
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} DOBJECT; /* a displayable object */ |
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static DLIGHTS *dlightsets; /* lighting sets */ |
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static DOBJECT *dobjects; /* display object list */ |
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static DOBJECT *curobj; /* current (last referred) object */ |
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static int lastxfac; /* last number of transform args */ |
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static char *lastxfav[MAXAC+1]; /* saved transform arguments */ |
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gwlarson |
3.2 |
#define getdcent(c,op) multp3(c,(op)->center,(op)->xfb.f.xfm) |
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#define getdrad(op) ((op)->radius*(op)->xfb.f.sca) |
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gwlarson |
3.1 |
#define RTARGC 8 |
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static char *rtargv[RTARGC+1] = {"rtrace", "-h-", "-w-", "-fdd", |
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"-x", "1", "-oL"}; |
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static struct { |
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int nsamp; /* number of ray samples */ |
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COLOR val; /* value (sum) */ |
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} ssamp[NALT][NAZI]; /* current sphere samples */ |
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#define curname (curobj==NULL ? (char *)NULL : curobj->name) |
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static DOBJECT * |
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getdobj(nm) /* get object from list by name */ |
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char *nm; |
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{ |
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register DOBJECT *op; |
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if (nm == NULL) |
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return(NULL); |
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if (nm == curname) |
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return(curobj); |
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for (op = dobjects; op != NULL; op = op->next) |
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if (!strcmp(op->name, nm)) |
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break; |
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return(op); |
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} |
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static |
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freedobj(op) /* free resources and memory assoc. with op */ |
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register DOBJECT *op; |
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{ |
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int foundlink = 0; |
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DOBJECT ohead; |
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register DOBJECT *opl; |
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if (op == NULL) |
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return(0); |
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ohead.next = dobjects; |
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for (opl = &ohead; opl->next != NULL; opl = opl->next) { |
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if (opl->next == op && (opl->next = op->next) == NULL) |
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break; |
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foundlink += opl->next->listid == op->listid; |
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} |
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dobjects = ohead.next; |
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if (!foundlink) { |
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gwlarson |
3.10 |
glDeleteLists(op->listid, op->nlists); |
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gwlarson |
3.1 |
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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return(1); |
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} |
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static |
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savedxf(op) /* save transform for display object */ |
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register DOBJECT *op; |
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{ |
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/* free old */ |
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while (lastxfac) |
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freestr(lastxfav[--lastxfac]); |
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/* nothing to save? */ |
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if (op == NULL) { |
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lastxfav[0] = NULL; |
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return(0); |
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} |
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/* else save new */ |
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for (lastxfac = 0; lastxfac < op->xfac; lastxfac++) |
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lastxfav[lastxfac] = savestr(op->xfav[lastxfac]); |
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lastxfav[lastxfac] = NULL; |
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return(1); |
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} |
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152 |
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153 |
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static |
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ssph_sample(clr, direc, pos) /* add sample to current source sphere */ |
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COLR clr; |
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FVECT direc, pos; |
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{ |
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COLOR col; |
159 |
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double d; |
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register int alt, azi; |
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if (dlightsets == NULL) |
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return; |
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if (pos == NULL) |
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d = FHUGE; /* sample is at infinity */ |
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else if ((d = (pos[0] - dlightsets->lcent[0])*direc[0] + |
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(pos[1] - dlightsets->lcent[1])*direc[1] + |
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(pos[2] - dlightsets->lcent[2])*direc[2]) > FTINY) |
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dlightsets->ravg += 1./d; |
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else |
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return; /* sample is behind us */ |
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alt = NALT*(1.-FTINY)*(.5*(1.+FTINY) + direc[2]*.5); |
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azi = NAZI*(1.-FTINY)*(.5*(1.+FTINY) + .5/PI*atan2(direc[1],direc[0])); |
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colr_color(col, clr); |
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addcolor(ssamp[alt][azi].val, col); |
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ssamp[alt][azi].nsamp++; |
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} |
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static |
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ssph_direc(direc, alt, azi) /* compute sphere sampling direction */ |
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FVECT direc; |
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int alt, azi; |
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{ |
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double phi, d; |
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direc[2] = 2./NALT*(alt+.5) - 1.; |
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d = sqrt(1. - direc[2]*direc[2]); |
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phi = 2.*PI/NAZI*(azi+.5) - PI; |
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direc[0] = d*cos(phi); |
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direc[1] = d*sin(phi); |
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} |
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static int |
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ssph_neigh(sp, next) /* neighbor counter on sphere */ |
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register int sp[2]; |
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int next; |
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{ |
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static short nneigh = 0; /* neighbor count */ |
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static short neighlist[NAZI+6][2]; /* neighbor list (0 is home) */ |
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register int i; |
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if (next) { |
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if (nneigh <= 0) |
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return(0); |
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sp[0] = neighlist[--nneigh][0]; |
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sp[1] = neighlist[nneigh][1]; |
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return(1); |
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} |
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if (sp[0] < 0 | sp[0] >= NALT | sp[1] < 0 | sp[1] >= NAZI) |
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return(nneigh=0); |
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neighlist[0][0] = sp[0]; neighlist[0][1] = sp[1]; |
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nneigh = 1; |
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if (sp[0] == 0) { |
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neighlist[nneigh][0] = 1; |
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neighlist[nneigh++][1] = (sp[1]+1)%NAZI; |
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neighlist[nneigh][0] = 1; |
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neighlist[nneigh++][1] = sp[1]; |
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neighlist[nneigh][0] = 1; |
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neighlist[nneigh++][1] = (sp[1]+(NAZI-1))%NAZI; |
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for (i = 0; i < NAZI; i++) |
223 |
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if (i != sp[1]) { |
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neighlist[nneigh][0] = 0; |
225 |
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neighlist[nneigh++][1] = i; |
226 |
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} |
227 |
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} else if (sp[0] == NALT-1) { |
228 |
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neighlist[nneigh][0] = NALT-2; |
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neighlist[nneigh++][1] = (sp[1]+1)%NAZI; |
230 |
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neighlist[nneigh][0] = NALT-2; |
231 |
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neighlist[nneigh++][1] = sp[1]; |
232 |
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neighlist[nneigh][0] = NALT-2; |
233 |
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neighlist[nneigh++][1] = (sp[1]+(NAZI-1))%NAZI; |
234 |
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for (i = 0; i < NAZI; i++) |
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if (i != sp[1]) { |
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neighlist[nneigh][0] = NALT-1; |
237 |
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neighlist[nneigh++][1] = i; |
238 |
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} |
239 |
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} else { |
240 |
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neighlist[nneigh][0] = sp[0]-1; |
241 |
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neighlist[nneigh++][1] = (sp[1]+1)%NAZI; |
242 |
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neighlist[nneigh][0] = sp[0]-1; |
243 |
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neighlist[nneigh++][1] = sp[1]; |
244 |
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neighlist[nneigh][0] = sp[0]-1; |
245 |
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neighlist[nneigh++][1] = (sp[1]+(NAZI-1))%NAZI; |
246 |
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neighlist[nneigh][0] = sp[0]; |
247 |
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neighlist[nneigh++][1] = (sp[1]+1)%NAZI; |
248 |
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neighlist[nneigh][0] = sp[0]; |
249 |
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neighlist[nneigh++][1] = (sp[1]+(NAZI-1))%NAZI; |
250 |
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neighlist[nneigh][0] = sp[0]+1; |
251 |
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neighlist[nneigh++][1] = (sp[1]+1)%NAZI; |
252 |
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neighlist[nneigh][0] = sp[0]+1; |
253 |
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neighlist[nneigh++][1] = sp[1]; |
254 |
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neighlist[nneigh][0] = sp[0]+1; |
255 |
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neighlist[nneigh++][1] = (sp[1]+(NAZI-1))%NAZI; |
256 |
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} |
257 |
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return(nneigh); |
258 |
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} |
259 |
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260 |
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261 |
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static |
262 |
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ssph_compute() /* compute source set from sphere samples */ |
263 |
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{ |
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int ncells, nsamps; |
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COLOR csum; |
266 |
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FVECT v; |
267 |
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double d, thresh, maxbr; |
268 |
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int maxalt, maxazi, spos[2]; |
269 |
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register int alt, azi; |
270 |
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register struct lsource *ls; |
271 |
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/* count & average sampled cells */ |
272 |
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setcolor(csum, 0., 0., 0.); |
273 |
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ncells = nsamps = 0; |
274 |
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for (alt = 0; alt < NALT; alt++) |
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for (azi = 0; azi < NAZI; azi++) |
276 |
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if (ssamp[alt][azi].nsamp) { |
277 |
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if (ssamp[alt][azi].nsamp > 1) { |
278 |
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d = 1.0/ssamp[alt][azi].nsamp; |
279 |
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scalecolor(ssamp[alt][azi].val, d); |
280 |
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} |
281 |
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addcolor(csum, ssamp[alt][azi].val); |
282 |
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nsamps += ssamp[alt][azi].nsamp; |
283 |
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ncells++; |
284 |
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} |
285 |
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if (dlightsets == NULL | ncells < NALT*NAZI/4) { |
286 |
gwlarson |
3.2 |
ncells = 0; |
287 |
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goto done; |
288 |
gwlarson |
3.1 |
} |
289 |
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/* harmonic mean distance */ |
290 |
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if (dlightsets->ravg > FTINY) |
291 |
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dlightsets->ravg = nsamps / dlightsets->ravg; |
292 |
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else |
293 |
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dlightsets->ravg = FHUGE; |
294 |
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/* light source threshold */ |
295 |
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thresh = MINTHRESH*bright(csum)/ncells; |
296 |
gwlarson |
3.2 |
if (thresh <= FTINY) { |
297 |
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ncells = 0; |
298 |
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goto done; |
299 |
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} |
300 |
gwlarson |
3.1 |
/* avg. reflected brightness */ |
301 |
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d = AVGREFL / (double)ncells; |
302 |
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scalecolor(csum, d); |
303 |
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if (tmCvColors(&dlightsets->larb, TM_NOCHROM, csum, 1) != TM_E_OK) |
304 |
gwlarson |
3.2 |
error(CONSISTENCY, "tone mapping problem in ssph_compute"); |
305 |
gwlarson |
3.1 |
/* greedy light source clustering */ |
306 |
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while (dlightsets->nl < MAXLIGHTS) { |
307 |
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maxbr = 0.; /* find brightest cell */ |
308 |
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for (alt = 0; alt < NALT; alt++) |
309 |
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for (azi = 0; azi < NAZI; azi++) |
310 |
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if ((d = bright(ssamp[alt][azi].val)) > maxbr) { |
311 |
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maxalt = alt; maxazi = azi; |
312 |
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maxbr = d; |
313 |
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} |
314 |
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if (maxbr < thresh) /* below threshold? */ |
315 |
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break; |
316 |
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ls = dlightsets->li + dlightsets->nl++; |
317 |
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spos[0] = maxalt; spos[1] = maxazi; /* cluster */ |
318 |
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for (ssph_neigh(spos, 0); ssph_neigh(spos, 1); ) { |
319 |
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alt = spos[0]; azi = spos[1]; |
320 |
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if ((d = bright(ssamp[alt][azi].val)) < .75*thresh) |
321 |
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continue; /* too dim */ |
322 |
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ssph_direc(v, alt, azi); /* else add it in */ |
323 |
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VSUM(ls->direc, ls->direc, v, d); |
324 |
gwlarson |
3.6 |
ls->omega += 1.; |
325 |
gwlarson |
3.1 |
addcolor(ls->val, ssamp[alt][azi].val); |
326 |
gwlarson |
3.6 |
/* remove from list */ |
327 |
gwlarson |
3.1 |
setcolor(ssamp[alt][azi].val, 0., 0., 0.); |
328 |
gwlarson |
3.6 |
ssamp[alt][azi].nsamp = 0; |
329 |
gwlarson |
3.1 |
} |
330 |
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d = 1./ls->omega; /* avg. brightness */ |
331 |
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scalecolor(ls->val, d); |
332 |
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ls->omega *= 4.*PI/(NALT*NAZI); /* solid angle */ |
333 |
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normalize(ls->direc); /* direction */ |
334 |
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} |
335 |
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/* compute ambient remainder */ |
336 |
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for (alt = 0; alt < NALT; alt++) |
337 |
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for (azi = 0; azi < NAZI; azi++) |
338 |
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if (ssamp[alt][azi].nsamp) |
339 |
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addcolor(dlightsets->lamb, ssamp[alt][azi].val); |
340 |
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d = 1.0/ncells; |
341 |
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scalecolor(dlightsets->lamb, d); |
342 |
gwlarson |
3.2 |
done: /* clear sphere sample array */ |
343 |
gwlarson |
3.1 |
bzero((char *)ssamp, sizeof(ssamp)); |
344 |
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return(ncells); |
345 |
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} |
346 |
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347 |
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348 |
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static |
349 |
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getdlights(op, force) /* get lights for display object */ |
350 |
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register DOBJECT *op; |
351 |
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int force; |
352 |
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{ |
353 |
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double d2, mind2 = FHUGE*FHUGE; |
354 |
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FVECT ocent; |
355 |
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VIEW cvw; |
356 |
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register DLIGHTS *dl; |
357 |
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|
358 |
|
|
op->ol = NULL; |
359 |
|
|
if (op->drawcode != DO_LIGHT) |
360 |
|
|
return(0); |
361 |
|
|
/* check for usable light set */ |
362 |
gwlarson |
3.2 |
getdcent(ocent, op); |
363 |
gwlarson |
3.1 |
for (dl = dlightsets; dl != NULL; dl = dl->next) |
364 |
|
|
if ((d2 = dist2(dl->lcent, ocent)) < mind2) { |
365 |
|
|
op->ol = dl; |
366 |
|
|
mind2 = d2; |
367 |
|
|
} |
368 |
|
|
/* the following is heuristic */ |
369 |
gwlarson |
3.2 |
d2 = 2.*getdrad(op); d2 *= d2; |
370 |
gwlarson |
3.1 |
if ((dl = op->ol) != NULL && (mind2 < 0.0625*dl->ravg*dl->ravg || |
371 |
gwlarson |
3.2 |
mind2 < 4.*getdrad(op)*getdrad(op))) |
372 |
gwlarson |
3.1 |
return(1); |
373 |
|
|
if (!force) |
374 |
|
|
return(0); |
375 |
|
|
/* need to compute new light set */ |
376 |
|
|
copystruct(&cvw, &stdview); |
377 |
|
|
cvw.type = VT_PER; |
378 |
|
|
VCOPY(cvw.vp, ocent); |
379 |
|
|
cvw.vup[0] = 1.; cvw.vup[1] = cvw.vup[2] = 0.; |
380 |
|
|
cvw.horiz = 90; cvw.vert = 90.; |
381 |
|
|
beam_init(1); /* query beams through center */ |
382 |
|
|
cvw.vdir[0] = cvw.vdir[1] = 0.; cvw.vdir[2] = 1.; |
383 |
|
|
setview(&cvw); beam_view(&cvw, 0, 0); |
384 |
|
|
cvw.vdir[0] = cvw.vdir[1] = 0.; cvw.vdir[2] = -1.; |
385 |
|
|
setview(&cvw); beam_view(&cvw, 0, 0); |
386 |
|
|
cvw.vup[0] = cvw.vup[1] = 0.; cvw.vup[2] = 1.; |
387 |
|
|
cvw.vdir[0] = cvw.vdir[2] = 0.; cvw.vdir[1] = 1.; |
388 |
|
|
setview(&cvw); beam_view(&cvw, 0, 0); |
389 |
|
|
cvw.vdir[0] = cvw.vdir[2] = 0.; cvw.vdir[1] = -1.; |
390 |
|
|
setview(&cvw); beam_view(&cvw, 0, 0); |
391 |
|
|
cvw.vdir[1] = cvw.vdir[2] = 0.; cvw.vdir[0] = 1.; |
392 |
|
|
setview(&cvw); beam_view(&cvw, 0, 0); |
393 |
|
|
cvw.vdir[1] = cvw.vdir[2] = 0.; cvw.vdir[0] = -1.; |
394 |
|
|
setview(&cvw); beam_view(&cvw, 0, 0); |
395 |
|
|
/* allocate new light set */ |
396 |
|
|
dl = (DLIGHTS *)calloc(1, sizeof(DLIGHTS)); |
397 |
|
|
if (dl == NULL) |
398 |
|
|
goto memerr; |
399 |
|
|
VCOPY(dl->lcent, ocent); |
400 |
|
|
/* push onto our light set list */ |
401 |
|
|
dl->next = dlightsets; |
402 |
|
|
dlightsets = dl; |
403 |
|
|
dobj_lightsamp = ssph_sample; /* get beams from server */ |
404 |
|
|
imm_mode = beam_sync(-1) > 0; |
405 |
|
|
while (imm_mode) |
406 |
|
|
if (serv_result() == DS_SHUTDOWN) |
407 |
|
|
quit(0); |
408 |
|
|
if (!ssph_compute()) { /* compute light sources from sphere */ |
409 |
|
|
dlightsets = dl->next; |
410 |
|
|
free((char *)dl); |
411 |
|
|
return(0); |
412 |
|
|
} |
413 |
|
|
op->ol = dl; |
414 |
|
|
return(1); |
415 |
|
|
memerr: |
416 |
|
|
error(SYSTEM, "out of memory in getdlights"); |
417 |
|
|
} |
418 |
|
|
|
419 |
|
|
|
420 |
gwlarson |
3.9 |
static |
421 |
gwlarson |
3.1 |
cmderror(cn, err) /* report command error */ |
422 |
|
|
int cn; |
423 |
|
|
char *err; |
424 |
|
|
{ |
425 |
|
|
sprintf(errmsg, "%s: %s", rhdcmd[cn], err); |
426 |
|
|
error(COMMAND, errmsg); |
427 |
|
|
} |
428 |
|
|
|
429 |
|
|
|
430 |
|
|
int |
431 |
|
|
dobj_command(cmd, args) /* run object display command */ |
432 |
|
|
char *cmd; |
433 |
|
|
register char *args; |
434 |
|
|
{ |
435 |
gwlarson |
3.8 |
int somechange = 0; |
436 |
gwlarson |
3.1 |
int cn, na, doxfm; |
437 |
|
|
register int nn; |
438 |
|
|
char *alist[MAXAC+1], *nm; |
439 |
|
|
/* find command */ |
440 |
|
|
for (cn = 0; cn < DO_NCMDS; cn++) |
441 |
|
|
if (!strcmp(cmd, rhdcmd[cn])) |
442 |
|
|
break; |
443 |
|
|
if (cn >= DO_NCMDS) |
444 |
|
|
return(-1); /* not in our list */ |
445 |
|
|
/* make argument list */ |
446 |
|
|
for (na = 0; *args; na++) { |
447 |
|
|
if (na > MAXAC) |
448 |
|
|
goto toomany; |
449 |
|
|
alist[na] = args; |
450 |
|
|
while (*args && !isspace(*args)) |
451 |
|
|
args++; |
452 |
|
|
while (isspace(*args)) |
453 |
|
|
*args++ = '\0'; |
454 |
|
|
} |
455 |
|
|
alist[na] = NULL; |
456 |
|
|
/* execute command */ |
457 |
|
|
switch (cn) { |
458 |
|
|
case DO_LOAD: /* load an octree */ |
459 |
|
|
if (na == 1) |
460 |
|
|
dobj_load(alist[0], alist[0]); |
461 |
|
|
else if (na == 2) |
462 |
|
|
dobj_load(alist[0], alist[1]); |
463 |
gwlarson |
3.9 |
else { |
464 |
|
|
cmderror(cn, "need octree [name]"); |
465 |
|
|
return(0); |
466 |
|
|
} |
467 |
gwlarson |
3.1 |
break; |
468 |
gwlarson |
3.5 |
case DO_UNLOAD: /* clear an object */ |
469 |
gwlarson |
3.1 |
if (na > 1) goto toomany; |
470 |
|
|
if (na && alist[0][0] == '*') |
471 |
gwlarson |
3.8 |
somechange += dobj_cleanup(); |
472 |
gwlarson |
3.1 |
else |
473 |
gwlarson |
3.8 |
somechange += dobj_unload(na ? alist[0] : curname); |
474 |
gwlarson |
3.1 |
break; |
475 |
|
|
case DO_XFORM: /* transform object */ |
476 |
|
|
case DO_MOVE: |
477 |
|
|
if (na && alist[0][0] != '-') { |
478 |
|
|
nm = alist[0]; nn = 1; |
479 |
|
|
} else { |
480 |
|
|
nm = curname; nn = 0; |
481 |
|
|
} |
482 |
gwlarson |
3.9 |
if (cn == DO_MOVE && nn >= na) { |
483 |
|
|
cmderror(cn, "missing transform"); |
484 |
|
|
return(0); |
485 |
|
|
} |
486 |
gwlarson |
3.8 |
somechange += dobj_xform(nm, cn==DO_MOVE, na-nn, alist+nn); |
487 |
gwlarson |
3.1 |
break; |
488 |
|
|
case DO_UNMOVE: /* undo last transform */ |
489 |
gwlarson |
3.8 |
somechange += dobj_unmove(); |
490 |
gwlarson |
3.1 |
break; |
491 |
|
|
case DO_OBJECT: /* print object statistics */ |
492 |
gwlarson |
3.3 |
if (dobj_putstats(na ? alist[0] : curname, sstdout)) |
493 |
gwlarson |
3.5 |
if (na && alist[0][0] != '*' && (curobj == NULL || |
494 |
|
|
strcmp(alist[0], curobj->name))) |
495 |
gwlarson |
3.3 |
savedxf(curobj = getdobj(alist[0])); |
496 |
gwlarson |
3.1 |
break; |
497 |
|
|
case DO_DUP: /* duplicate object */ |
498 |
|
|
for (nn = 0; nn < na; nn++) |
499 |
|
|
if (alist[nn][0] == '-') |
500 |
|
|
break; |
501 |
|
|
switch (nn) { |
502 |
|
|
case 0: |
503 |
gwlarson |
3.9 |
cmderror(cn, "need new object name"); |
504 |
|
|
return(0); |
505 |
gwlarson |
3.1 |
case 1: |
506 |
|
|
nm = curname; |
507 |
|
|
break; |
508 |
|
|
case 2: |
509 |
|
|
nm = alist[0]; |
510 |
|
|
break; |
511 |
|
|
default: |
512 |
|
|
goto toomany; |
513 |
|
|
} |
514 |
|
|
if (!dobj_dup(nm, alist[nn-1])) |
515 |
|
|
break; |
516 |
|
|
if (na > nn) |
517 |
gwlarson |
3.8 |
somechange += dobj_xform(curname, 1, na-nn, alist+nn); |
518 |
gwlarson |
3.1 |
else |
519 |
|
|
curobj->drawcode = DO_HIDE; |
520 |
gwlarson |
3.3 |
savedxf(curobj); |
521 |
gwlarson |
3.1 |
break; |
522 |
|
|
case DO_SHOW: /* change rendering option */ |
523 |
|
|
case DO_LIGHT: |
524 |
|
|
case DO_HIDE: |
525 |
|
|
if (na > 1) goto toomany; |
526 |
|
|
dobj_lighting(na ? alist[0] : curname, cn); |
527 |
gwlarson |
3.8 |
somechange++; |
528 |
gwlarson |
3.1 |
break; |
529 |
|
|
default: |
530 |
|
|
error(CONSISTENCY, "bad command id in dobj_command"); |
531 |
|
|
} |
532 |
gwlarson |
3.9 |
return(somechange); |
533 |
gwlarson |
3.1 |
toomany: |
534 |
|
|
return(cmderror(cn, "too many arguments")); |
535 |
|
|
} |
536 |
|
|
|
537 |
|
|
|
538 |
|
|
dobj_load(oct, nam) /* create/load an octree object */ |
539 |
|
|
char *oct, *nam; |
540 |
|
|
{ |
541 |
|
|
extern char *getlibpath(), *getpath(); |
542 |
|
|
char *fpp, fpath[128]; |
543 |
|
|
register DOBJECT *op; |
544 |
|
|
/* check arguments */ |
545 |
|
|
if (oct == NULL) { |
546 |
|
|
error(COMMAND, "missing octree"); |
547 |
|
|
return(0); |
548 |
|
|
} |
549 |
|
|
if (nam == NULL) { |
550 |
|
|
error(COMMAND, "missing name"); |
551 |
|
|
return(0); |
552 |
|
|
} |
553 |
|
|
if (*nam == '*' | *nam == '-') { |
554 |
|
|
error(COMMAND, "illegal name"); |
555 |
|
|
return(0); |
556 |
|
|
} |
557 |
gwlarson |
3.3 |
if (getdobj(nam) != NULL) { |
558 |
gwlarson |
3.5 |
error(COMMAND, "name already taken (clear first)"); |
559 |
gwlarson |
3.3 |
return(0); |
560 |
|
|
} |
561 |
gwlarson |
3.1 |
/* get octree path */ |
562 |
|
|
if ((fpp = getpath(oct, getlibpath(), R_OK)) == NULL) { |
563 |
|
|
sprintf(errmsg, "cannot find octree \"%s\"", oct); |
564 |
|
|
error(COMMAND, errmsg); |
565 |
|
|
return(0); |
566 |
|
|
} |
567 |
|
|
strcpy(fpath, fpp); |
568 |
|
|
op = (DOBJECT *)malloc(sizeof(DOBJECT)); |
569 |
|
|
if (op == NULL) |
570 |
|
|
error(SYSTEM, "out of memory in dobj_load"); |
571 |
|
|
/* set struct fields */ |
572 |
|
|
strcpy(op->name, nam); |
573 |
|
|
op->ol = NULL; |
574 |
|
|
op->drawcode = DO_HIDE; |
575 |
|
|
setident4(op->xfb.f.xfm); op->xfb.f.sca = 1.; |
576 |
|
|
setident4(op->xfb.b.xfm); op->xfb.b.sca = 1.; |
577 |
|
|
op->xfav[op->xfac=0] = NULL; |
578 |
|
|
/* load octree into display list */ |
579 |
|
|
dolights = 0; |
580 |
gwlarson |
3.8 |
domats = 1; |
581 |
gwlarson |
3.10 |
op->listid = rgl_octlist(fpath, op->center, &op->radius, &op->nlists); |
582 |
gwlarson |
3.1 |
/* start rtrace */ |
583 |
|
|
rtargv[RTARGC-1] = fpath; |
584 |
|
|
rtargv[RTARGC] = NULL; |
585 |
|
|
open_process(op->rtp, rtargv); |
586 |
|
|
/* insert into main list */ |
587 |
|
|
op->next = dobjects; |
588 |
|
|
curobj = dobjects = op; |
589 |
|
|
savedxf(NULL); |
590 |
|
|
return(1); |
591 |
|
|
} |
592 |
|
|
|
593 |
|
|
|
594 |
|
|
dobj_unload(nam) /* free the named object */ |
595 |
|
|
char *nam; |
596 |
|
|
{ |
597 |
|
|
register DOBJECT *op; |
598 |
|
|
|
599 |
|
|
if ((op = getdobj(nam)) == NULL) { |
600 |
|
|
error(COMMAND, "no object"); |
601 |
|
|
return(0); |
602 |
|
|
} |
603 |
|
|
freedobj(op); |
604 |
|
|
savedxf(curobj = NULL); |
605 |
|
|
return(1); |
606 |
|
|
} |
607 |
|
|
|
608 |
|
|
|
609 |
|
|
dobj_cleanup() /* free all resources */ |
610 |
|
|
{ |
611 |
|
|
register DLIGHTS *lp; |
612 |
|
|
|
613 |
|
|
while (dobjects != NULL) |
614 |
|
|
freedobj(dobjects); |
615 |
|
|
savedxf(curobj = NULL); |
616 |
|
|
while ((lp = dlightsets) != NULL) { |
617 |
|
|
dlightsets = lp->next; |
618 |
|
|
free((char *)lp); |
619 |
|
|
} |
620 |
|
|
return(1); |
621 |
|
|
} |
622 |
|
|
|
623 |
|
|
|
624 |
gwlarson |
3.6 |
dobj_xform(nam, rel, ac, av) /* set/add transform for nam */ |
625 |
gwlarson |
3.1 |
char *nam; |
626 |
gwlarson |
3.6 |
int rel, ac; |
627 |
gwlarson |
3.1 |
char **av; |
628 |
|
|
{ |
629 |
|
|
register DOBJECT *op; |
630 |
gwlarson |
3.6 |
FVECT cent; |
631 |
|
|
double rad; |
632 |
|
|
char scoord[16]; |
633 |
|
|
int i; |
634 |
gwlarson |
3.1 |
|
635 |
|
|
if ((op = getdobj(nam)) == NULL) { |
636 |
|
|
error(COMMAND, "no object"); |
637 |
|
|
return(0); |
638 |
|
|
} |
639 |
gwlarson |
3.6 |
if (rel) |
640 |
|
|
rel = op->xfac + 8; |
641 |
|
|
if (ac + rel > MAXAC) { |
642 |
gwlarson |
3.1 |
error(COMMAND, "too many transform arguments"); |
643 |
|
|
return(0); |
644 |
|
|
} |
645 |
gwlarson |
3.6 |
savedxf(curobj = op); /* remember current transform */ |
646 |
|
|
if (rel && ac == 4 && !strcmp(av[0], "-t")) |
647 |
|
|
rel = -1; /* don't move for translate */ |
648 |
|
|
else { |
649 |
|
|
getdcent(cent, op); /* don't move if near orig. */ |
650 |
|
|
rad = getdrad(op); |
651 |
|
|
if (DOT(cent,cent) < rad*rad) |
652 |
|
|
rel = -1; |
653 |
|
|
} |
654 |
|
|
if (!rel) { /* remove old transform */ |
655 |
gwlarson |
3.1 |
while (op->xfac) |
656 |
|
|
freestr(op->xfav[--op->xfac]); |
657 |
gwlarson |
3.6 |
} else if (rel > 0) { /* relative move */ |
658 |
|
|
op->xfav[op->xfac++] = savestr("-t"); |
659 |
|
|
for (i = 0; i < 3; i++) { |
660 |
|
|
sprintf(scoord, "%.4e", -cent[i]); |
661 |
|
|
op->xfav[op->xfac++] = savestr(scoord); |
662 |
|
|
} |
663 |
|
|
} |
664 |
gwlarson |
3.1 |
while (ac--) |
665 |
|
|
op->xfav[op->xfac++] = savestr(*av++); |
666 |
gwlarson |
3.6 |
if (rel > 0) { /* move back */ |
667 |
|
|
op->xfav[op->xfac++] = savestr("-t"); |
668 |
|
|
for (i = 0; i < 3; i++) { |
669 |
|
|
sprintf(scoord, "%.4e", cent[i]); |
670 |
|
|
op->xfav[op->xfac++] = savestr(scoord); |
671 |
|
|
} |
672 |
|
|
} |
673 |
gwlarson |
3.1 |
op->xfav[op->xfac] = NULL; |
674 |
|
|
if (fullxf(&op->xfb, op->xfac, op->xfav) != op->xfac) { |
675 |
|
|
error(COMMAND, "bad transform arguments"); |
676 |
|
|
dobj_unmove(); |
677 |
|
|
savedxf(op); /* save current transform instead */ |
678 |
|
|
return(0); |
679 |
|
|
} |
680 |
|
|
/* don't know local lights anymore */ |
681 |
|
|
getdlights(op, 0); |
682 |
|
|
return(1); |
683 |
|
|
} |
684 |
|
|
|
685 |
|
|
|
686 |
|
|
dobj_putstats(nam, fp) /* put out statistics for nam */ |
687 |
|
|
char *nam; |
688 |
|
|
FILE *fp; |
689 |
|
|
{ |
690 |
|
|
FVECT ocent; |
691 |
|
|
register DOBJECT *op; |
692 |
|
|
register int i; |
693 |
|
|
|
694 |
|
|
if (nam == NULL) { |
695 |
|
|
error(COMMAND, "no current object"); |
696 |
|
|
return(0); |
697 |
|
|
} |
698 |
|
|
if (nam[0] == '*') { |
699 |
|
|
i = 0; |
700 |
|
|
for (op = dobjects; op != NULL; op = op->next) |
701 |
|
|
i += dobj_putstats(op->name, fp); |
702 |
|
|
return(i); |
703 |
|
|
} |
704 |
|
|
if ((op = getdobj(nam)) == NULL) { |
705 |
|
|
error(COMMAND, "unknown object"); |
706 |
|
|
return(0); |
707 |
|
|
} |
708 |
gwlarson |
3.2 |
getdcent(ocent, op); |
709 |
gwlarson |
3.6 |
fprintf(fp, "%s: %s, center [%g %g %g], radius %g", op->name, |
710 |
gwlarson |
3.3 |
op->drawcode==DO_HIDE ? "hidden" : |
711 |
|
|
op->drawcode==DO_LIGHT && op->ol!=NULL ? "lighted" : |
712 |
gwlarson |
3.1 |
"shown", |
713 |
gwlarson |
3.2 |
ocent[0],ocent[1],ocent[2], getdrad(op)); |
714 |
gwlarson |
3.1 |
if (op->xfac) |
715 |
|
|
fputs(", (xform", fp); |
716 |
|
|
for (i = 0; i < op->xfac; i++) { |
717 |
|
|
putc(' ', fp); |
718 |
|
|
fputs(op->xfav[i], fp); |
719 |
|
|
} |
720 |
|
|
if (op->xfac) |
721 |
|
|
fputc(')', fp); |
722 |
|
|
fputc('\n', fp); |
723 |
|
|
return(1); |
724 |
|
|
} |
725 |
|
|
|
726 |
|
|
|
727 |
|
|
dobj_unmove() /* undo last transform change */ |
728 |
|
|
{ |
729 |
|
|
int txfac; |
730 |
|
|
char *txfav[MAXAC+1]; |
731 |
|
|
|
732 |
|
|
if (curobj == NULL) { |
733 |
|
|
error(COMMAND, "no current object"); |
734 |
|
|
return(0); |
735 |
|
|
} |
736 |
|
|
/* hold last transform */ |
737 |
|
|
bcopy((char *)lastxfav, (char *)txfav, |
738 |
|
|
(txfac=lastxfac)*sizeof(char *)); |
739 |
|
|
/* save this transform */ |
740 |
|
|
bcopy((char *)curobj->xfav, (char *)lastxfav, |
741 |
|
|
(lastxfac=curobj->xfac)*sizeof(char *)); |
742 |
|
|
/* copy back last transform */ |
743 |
|
|
bcopy((char *)txfav, (char *)curobj->xfav, |
744 |
|
|
(curobj->xfac=txfac)*sizeof(char *)); |
745 |
|
|
/* set matrices */ |
746 |
|
|
fullxf(&curobj->xfb, curobj->xfac, curobj->xfav); |
747 |
|
|
/* don't know local lights anymore */ |
748 |
|
|
getdlights(curobj, 0); |
749 |
|
|
return(1); |
750 |
|
|
} |
751 |
|
|
|
752 |
|
|
|
753 |
|
|
dobj_dup(oldnm, nam) /* duplicate object oldnm as nam */ |
754 |
|
|
char *oldnm, *nam; |
755 |
|
|
{ |
756 |
|
|
register DOBJECT *op, *opdup; |
757 |
|
|
/* check arguments */ |
758 |
|
|
if ((op = getdobj(oldnm)) == NULL) { |
759 |
|
|
error(COMMAND, "no object"); |
760 |
|
|
return(0); |
761 |
|
|
} |
762 |
|
|
if (nam == NULL) { |
763 |
|
|
error(COMMAND, "missing name"); |
764 |
|
|
return(0); |
765 |
|
|
} |
766 |
|
|
if (*nam == '*' | *nam == '-') { |
767 |
|
|
error(COMMAND, "illegal name"); |
768 |
|
|
return(0); |
769 |
|
|
} |
770 |
gwlarson |
3.3 |
if (getdobj(nam) != NULL) { |
771 |
gwlarson |
3.5 |
error(COMMAND, "name already taken (clear first)"); |
772 |
gwlarson |
3.3 |
return(0); |
773 |
|
|
} |
774 |
gwlarson |
3.1 |
/* allocate and copy struct */ |
775 |
|
|
opdup = (DOBJECT *)malloc(sizeof(DOBJECT)); |
776 |
|
|
if (opdup == NULL) |
777 |
|
|
error(SYSTEM, "out of memory in dobj_dup"); |
778 |
|
|
copystruct(opdup, op); |
779 |
|
|
/* rename */ |
780 |
|
|
strcpy(opdup->name, nam); |
781 |
|
|
/* get our own copy of transform */ |
782 |
|
|
for (opdup->xfac = 0; opdup->xfac < op->xfac; opdup->xfac++) |
783 |
|
|
opdup->xfav[opdup->xfac] = savestr(op->xfav[opdup->xfac]); |
784 |
|
|
opdup->xfav[opdup->xfac] = NULL; |
785 |
|
|
/* insert it into our list */ |
786 |
|
|
opdup->next = dobjects; |
787 |
|
|
curobj = dobjects = opdup; |
788 |
|
|
return(1); |
789 |
|
|
} |
790 |
|
|
|
791 |
|
|
|
792 |
|
|
dobj_lighting(nam, cn) /* set up lighting for display object */ |
793 |
|
|
char *nam; |
794 |
|
|
int cn; |
795 |
|
|
{ |
796 |
|
|
int i, res[2]; |
797 |
|
|
VIEW *dv; |
798 |
|
|
register DOBJECT *op; |
799 |
|
|
|
800 |
|
|
if (nam == NULL) { |
801 |
|
|
error(COMMAND, "no current object"); |
802 |
|
|
return(0); |
803 |
|
|
} |
804 |
|
|
if (nam[0] == '*') { |
805 |
|
|
for (op = dobjects; op != NULL; op = op->next) |
806 |
|
|
if ((op->drawcode = cn) == DO_LIGHT) |
807 |
|
|
getdlights(op, 1); |
808 |
|
|
else |
809 |
|
|
op->ol = NULL; |
810 |
|
|
} else if ((op = getdobj(nam)) == NULL) { |
811 |
|
|
error(COMMAND, "unknown object"); |
812 |
|
|
return(0); |
813 |
gwlarson |
3.4 |
} else if ((op->drawcode = cn) == DO_LIGHT) { |
814 |
|
|
if (!getdlights(op, 1)) |
815 |
|
|
error(COMMAND, "insufficient samples to light object"); |
816 |
|
|
} else |
817 |
gwlarson |
3.1 |
op->ol = NULL; |
818 |
|
|
|
819 |
|
|
if (dobj_lightsamp != NULL) { /* restore beam set */ |
820 |
|
|
dobj_lightsamp = NULL; |
821 |
|
|
beam_init(1); |
822 |
|
|
for (i = 0; (dv = dev_auxview(i, res)) != NULL; i++) |
823 |
|
|
beam_view(dv, res[0], res[1]); |
824 |
|
|
beam_sync(1); /* update server */ |
825 |
|
|
} |
826 |
|
|
} |
827 |
|
|
|
828 |
|
|
|
829 |
|
|
double |
830 |
gwlarson |
3.2 |
dobj_trace(nm, rorg, rdir) /* check for ray intersection with object(s) */ |
831 |
|
|
char nm[]; |
832 |
gwlarson |
3.1 |
FVECT rorg, rdir; |
833 |
|
|
{ |
834 |
|
|
register DOBJECT *op; |
835 |
|
|
FVECT xorg, xdir; |
836 |
gwlarson |
3.2 |
double darr[6]; |
837 |
gwlarson |
3.3 |
/* check each visible object? */ |
838 |
gwlarson |
3.2 |
if (nm == NULL || *nm == '*') { |
839 |
|
|
double dist, mindist = 1.01*FHUGE; |
840 |
gwlarson |
3.3 |
|
841 |
|
|
if (nm != NULL) nm[0] = '\0'; |
842 |
gwlarson |
3.2 |
for (op = dobjects; op != NULL; op = op->next) { |
843 |
|
|
if (op->drawcode == DO_HIDE) |
844 |
|
|
continue; |
845 |
|
|
dist = dobj_trace(op->name, rorg, rdir); |
846 |
|
|
if (dist < mindist) { |
847 |
gwlarson |
3.3 |
if (nm != NULL) strcpy(nm, op->name); |
848 |
|
|
mindist = dist; |
849 |
gwlarson |
3.2 |
} |
850 |
gwlarson |
3.1 |
} |
851 |
gwlarson |
3.2 |
return(mindist); |
852 |
gwlarson |
3.1 |
} |
853 |
gwlarson |
3.2 |
/* else check particular object */ |
854 |
|
|
if ((op = getdobj(nm)) == NULL) { |
855 |
|
|
error(COMMAND, "unknown object"); |
856 |
|
|
return(FHUGE); |
857 |
|
|
} |
858 |
gwlarson |
3.3 |
if (op->xfac) { /* put ray in local coordinates */ |
859 |
gwlarson |
3.2 |
multp3(xorg, rorg, op->xfb.b.xfm); |
860 |
|
|
multv3(xdir, rdir, op->xfb.b.xfm); |
861 |
|
|
VCOPY(darr, xorg); VCOPY(darr+3, xdir); |
862 |
|
|
} else { |
863 |
|
|
VCOPY(darr, rorg); VCOPY(darr+3, rdir); |
864 |
|
|
} |
865 |
|
|
/* trace it */ |
866 |
|
|
if (process(op->rtp, darr, darr, sizeof(double), |
867 |
|
|
6*sizeof(double)) != sizeof(double)) |
868 |
|
|
error(SYSTEM, "rtrace communication error"); |
869 |
|
|
/* return distance */ |
870 |
|
|
if (darr[0] >= .99*FHUGE) |
871 |
|
|
return(FHUGE); |
872 |
gwlarson |
3.3 |
return(darr[0]*op->xfb.f.sca); |
873 |
gwlarson |
3.1 |
} |
874 |
|
|
|
875 |
|
|
|
876 |
gwlarson |
3.7 |
int |
877 |
gwlarson |
3.1 |
dobj_render() /* render our objects in OpenGL */ |
878 |
|
|
{ |
879 |
gwlarson |
3.7 |
int nrendered = 0; |
880 |
gwlarson |
3.1 |
GLboolean normalizing; |
881 |
|
|
GLfloat vec[4]; |
882 |
gwlarson |
3.2 |
FVECT v1; |
883 |
gwlarson |
3.1 |
register DOBJECT *op; |
884 |
|
|
register int i; |
885 |
|
|
/* anything to render? */ |
886 |
|
|
for (op = dobjects; op != NULL; op = op->next) |
887 |
|
|
if (op->drawcode != DO_HIDE) |
888 |
|
|
break; |
889 |
|
|
if (op == NULL) |
890 |
gwlarson |
3.7 |
return(0); |
891 |
gwlarson |
3.1 |
/* set up general rendering params */ |
892 |
|
|
glGetBooleanv(GL_NORMALIZE, &normalizing); |
893 |
gwlarson |
3.4 |
glPushAttrib(GL_LIGHTING_BIT|GL_TRANSFORM_BIT|GL_ENABLE_BIT| |
894 |
|
|
GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_POLYGON_BIT); |
895 |
gwlarson |
3.1 |
glDepthFunc(GL_LESS); |
896 |
|
|
glEnable(GL_DEPTH_TEST); |
897 |
|
|
glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE); |
898 |
|
|
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); |
899 |
|
|
glShadeModel(GL_SMOOTH); |
900 |
|
|
glFrontFace(GL_CCW); |
901 |
|
|
glDisable(GL_CULL_FACE); |
902 |
|
|
for (i = MAXLIGHTS; i--; ) |
903 |
|
|
glDisable(glightid[i]); |
904 |
|
|
glEnable(GL_LIGHTING); |
905 |
|
|
rgl_checkerr("setting rendering modes in dobj_render"); |
906 |
|
|
/* render each object */ |
907 |
|
|
for (op = dobjects; op != NULL; op = op->next) { |
908 |
|
|
if (op->drawcode == DO_HIDE) |
909 |
|
|
continue; |
910 |
|
|
/* set up lighting */ |
911 |
|
|
if (op->drawcode == DO_LIGHT && op->ol != NULL) { |
912 |
|
|
BYTE pval; |
913 |
|
|
double expval, d; |
914 |
gwlarson |
3.2 |
/* use computed sources */ |
915 |
gwlarson |
3.1 |
if (tmMapPixels(&pval, &op->ol->larb, TM_NOCHROM, 1) |
916 |
|
|
!= TM_E_OK) |
917 |
|
|
error(CONSISTENCY, "dobj_render w/o tone map"); |
918 |
|
|
expval = pval * (WHTEFFICACY/256.) / |
919 |
|
|
tmLuminance(op->ol->larb); |
920 |
|
|
vec[0] = expval * colval(op->ol->lamb,RED); |
921 |
|
|
vec[1] = expval * colval(op->ol->lamb,GRN); |
922 |
|
|
vec[2] = expval * colval(op->ol->lamb,BLU); |
923 |
|
|
vec[3] = 1.; |
924 |
|
|
glLightModelfv(GL_LIGHT_MODEL_AMBIENT, vec); |
925 |
|
|
for (i = op->ol->nl; i--; ) { |
926 |
|
|
VCOPY(vec, op->ol->li[i].direc); |
927 |
|
|
vec[3] = 0.; |
928 |
|
|
glLightfv(glightid[i], GL_POSITION, vec); |
929 |
|
|
d = expval * op->ol->li[i].omega; |
930 |
|
|
vec[0] = d * colval(op->ol->li[i].val,RED); |
931 |
|
|
vec[1] = d * colval(op->ol->li[i].val,GRN); |
932 |
|
|
vec[2] = d * colval(op->ol->li[i].val,BLU); |
933 |
|
|
vec[3] = 1.; |
934 |
|
|
glLightfv(glightid[i], GL_SPECULAR, vec); |
935 |
|
|
glLightfv(glightid[i], GL_DIFFUSE, vec); |
936 |
|
|
vec[0] = vec[1] = vec[2] = 0.; vec[3] = 1.; |
937 |
|
|
glLightfv(glightid[i], GL_AMBIENT, vec); |
938 |
|
|
glEnable(glightid[i]); |
939 |
|
|
} |
940 |
gwlarson |
3.3 |
} else { /* fake lighting */ |
941 |
gwlarson |
3.2 |
vec[0] = vec[1] = vec[2] = 0.; vec[3] = 1.; |
942 |
gwlarson |
3.1 |
glLightModelfv(GL_LIGHT_MODEL_AMBIENT, vec); |
943 |
gwlarson |
3.2 |
getdcent(v1, op); |
944 |
|
|
VSUB(v1, odev.v.vp, v1); |
945 |
|
|
if (normalize(v1) <= getdrad(op)) { |
946 |
|
|
vec[0] = -odev.v.vdir[0]; |
947 |
|
|
vec[1] = -odev.v.vdir[1]; |
948 |
|
|
vec[2] = -odev.v.vdir[2]; |
949 |
|
|
} else |
950 |
|
|
VCOPY(vec, v1); |
951 |
|
|
vec[3] = 0.; |
952 |
|
|
glLightfv(GL_LIGHT0, GL_POSITION, vec); |
953 |
|
|
vec[0] = vec[1] = vec[2] = .7; vec[3] = 1.; |
954 |
|
|
glLightfv(GL_LIGHT0, GL_SPECULAR, vec); |
955 |
|
|
glLightfv(GL_LIGHT0, GL_DIFFUSE, vec); |
956 |
|
|
vec[0] = vec[1] = vec[2] = .3; vec[3] = 1.; |
957 |
|
|
glLightfv(GL_LIGHT0, GL_AMBIENT, vec); |
958 |
|
|
glEnable(GL_LIGHT0); |
959 |
gwlarson |
3.1 |
} |
960 |
|
|
/* set up object transform */ |
961 |
|
|
if (op->xfac) { |
962 |
|
|
if (!normalizing && op->xfb.f.sca < 1.-FTINY | |
963 |
|
|
op->xfb.f.sca > 1.+FTINY) |
964 |
|
|
glEnable(GL_NORMALIZE); |
965 |
|
|
glMatrixMode(GL_MODELVIEW); |
966 |
|
|
glPushMatrix(); |
967 |
|
|
/* matrix order works out to same */ |
968 |
|
|
#ifdef SMLFLT |
969 |
|
|
glMultMatrixf((GLfloat *)op->xfb.f.xfm); |
970 |
|
|
#else |
971 |
|
|
glMultMatrixd((GLdouble *)op->xfb.f.xfm); |
972 |
|
|
#endif |
973 |
|
|
} |
974 |
|
|
/* render the display list */ |
975 |
|
|
glCallList(op->listid); |
976 |
gwlarson |
3.7 |
nrendered++; |
977 |
gwlarson |
3.1 |
/* restore matrix */ |
978 |
|
|
if (op->xfac) { |
979 |
|
|
glMatrixMode(GL_MODELVIEW); |
980 |
|
|
glPopMatrix(); |
981 |
|
|
if (!normalizing) |
982 |
|
|
glDisable(GL_NORMALIZE); |
983 |
|
|
} |
984 |
|
|
/* restore lighting */ |
985 |
|
|
if (op->drawcode == DO_LIGHT && op->ol != NULL) |
986 |
|
|
for (i = op->ol->nl; i--; ) |
987 |
|
|
glDisable(glightid[i]); |
988 |
gwlarson |
3.2 |
else |
989 |
|
|
glDisable(GL_LIGHT0); |
990 |
gwlarson |
3.1 |
/* check errors */ |
991 |
|
|
} |
992 |
|
|
glPopAttrib(); /* restore rendering params */ |
993 |
gwlarson |
3.3 |
rgl_checkerr("rendering objects in dobj_render"); |
994 |
gwlarson |
3.7 |
return(nrendered); |
995 |
gwlarson |
3.1 |
} |