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/* Copyright (c) 1994 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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|
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/* |
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* Convert Radiance scene description to MGF |
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*/ |
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|
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#include <stdio.h> |
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#include <string.h> |
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#include "fvect.h" |
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#include <ctype.h> |
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|
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#include "platform.h" |
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#include "rtmath.h" |
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#include "rtio.h" |
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#include "rtprocess.h" |
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#include "object.h" |
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#include "color.h" |
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#include "lookup.h" |
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|
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#define PI 3.14159265358979323846 |
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#define C_1SIDEDTHICK 0.005 |
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|
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int o_face(), o_cone(), o_sphere(), o_ring(), o_cylinder(); |
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int o_instance(), o_source(), o_illum(); |
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int o_plastic(), o_metal(), o_glass(), o_mirror(), o_trans(), o_light(); |
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|
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extern void free(); |
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extern char *malloc(); |
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LUTAB rmats = LU_SINIT(free,NULL); /* defined material table */ |
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LUTAB rdispatch = LU_SINIT(NULL,NULL); /* function dispatch table */ |
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* Stuff for tracking and reusing vertices: |
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*/ |
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|
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char VKFMT[] = "%+1.9e %+1.9e %+1.9e"; |
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char VKFMT[] = "%+16.9e %+16.9e %+16.9e"; |
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#define VKLEN 64 |
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#define mkvkey(k,v) sprintf(k, VKFMT, (v)[0], (v)[1], (v)[2]) |
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LUTAB vertab = LU_SINIT(free,NULL); /* our vertex lookup table */ |
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typedef int dispatchf(char *mod, char *typ, char *id, FUNARGS *fa); |
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main(argc, argv) |
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int argc; |
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char **argv; |
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void rad2mgf(char *inp); |
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void cvtprim(char *inp, char *mod, char *typ, char *id, FUNARGS *fa); |
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void newmat(char *id, char *alias); |
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void setmat(char *id); |
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void setobj(char *id); |
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void init(void); |
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void uninit(void); |
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void clrverts(void); |
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void unspace(char *s); |
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void add2dispatch(char *name, dispatchf *func); |
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char *getvertid(char *vname, FVECT vp); |
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|
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dispatchf o_unsupported, o_face, o_cone, o_sphere, |
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o_cylinder, o_ring, o_instance, o_illum, |
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o_plastic, o_metal, o_glass, o_dielectric, |
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o_mirror, o_trans, o_light; |
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int |
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main( |
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int argc, |
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char **argv |
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) |
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{ |
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int i; |
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} |
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rad2mgf(inp) /* convert a Radiance file to MGF */ |
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char *inp; |
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void |
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rad2mgf( /* convert a Radiance file to MGF */ |
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char *inp |
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) |
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{ |
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#define mod buf |
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#define typ (buf+128) |
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#define id (buf+256) |
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#define alias (buf+384) |
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char buf[512]; |
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char buf[512]; |
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char mod[128], typ[32], id[128], alias[128]; |
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FUNARGS fa; |
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register FILE *fp; |
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register int c; |
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FILE *fp; |
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int c; |
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if (inp == NULL) { |
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inp = "standard input"; |
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break; |
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default: /* Radiance primitive */ |
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ungetc(c, fp); |
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if (fscanf(fp, "%s %s %s", mod, typ, id) != 3) { |
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if (fgetword(mod, sizeof(mod), fp) == NULL || |
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fgetword(typ, sizeof(typ), fp) == NULL || |
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fgetword(id, sizeof(id), fp) == NULL) { |
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fputs(inp, stderr); |
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fputs(": unexpected EOF\n", stderr); |
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exit(1); |
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} |
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unspace(mod); |
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unspace(id); |
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if (!strcmp(typ, "alias")) { |
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strcpy(alias, "EOF"); |
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fscanf(fp, "%s", alias); |
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fgetword(alias, sizeof(alias), fp); |
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unspace(alias); |
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newmat(id, alias); |
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} else { |
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if (!readfargs(&fa, fp)) { |
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} |
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break; |
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} |
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printf("# End conversion from: %s\n", inp); |
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if (inp[0] == '!') |
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pclose(fp); |
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else |
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if (inp[0] == '!') { |
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if (pclose(fp) != 0) |
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fprintf(stderr, "%s: warning - bad exit status\n", inp); |
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} else |
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fclose(fp); |
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#undef mod |
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#undef typ |
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#undef id |
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#undef alias |
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printf("# End conversion from: %s\n", inp); |
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} |
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cvtprim(inp, mod, typ, id, fa) /* process Radiance primitive */ |
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char *inp, *mod, *typ, *id; |
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FUNARGS *fa; |
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void |
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unspace( /* replace spaces with underscores in s */ |
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char *s |
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) |
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{ |
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int (*df)(); |
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while (*s) { |
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if (isspace(*s)) |
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*s = '_'; |
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++s; |
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} |
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} |
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|
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df = (int (*)())lu_find(&rdispatch, typ)->data; |
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|
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void |
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cvtprim( /* process Radiance primitive */ |
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char *inp, |
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char *mod, |
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> |
char *typ, |
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> |
char *id, |
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> |
FUNARGS *fa |
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> |
) |
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> |
{ |
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> |
dispatchf *df; |
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> |
|
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> |
df = (dispatchf *)lu_find(&rdispatch, typ)->data; |
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if (df != NULL) { /* convert */ |
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if ((*df)(mod, typ, id, fa) < 0) { |
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fprintf(stderr, "%s: bad %s \"%s\"\n", typ, id); |
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> |
fprintf(stderr, "%s: bad %s \"%s\"\n", "rad2mgf", typ, id); |
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exit(1); |
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} |
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< |
} else if (lu_find(&rmats, mod)->data != NULL) /* make alias */ |
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< |
newmat(id, mod); |
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> |
} else { /* unsupported */ |
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> |
o_unsupported(mod, typ, id, fa); |
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> |
if (lu_find(&rmats, mod)->data != NULL) /* make alias */ |
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> |
newmat(id, mod); |
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> |
} |
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} |
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newmat(id, alias) /* add a modifier to the alias list */ |
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< |
char *id; |
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< |
char *alias; |
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> |
void |
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> |
newmat( /* add a modifier to the alias list */ |
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> |
char *id, |
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> |
char *alias |
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> |
) |
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{ |
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< |
register LUENT *lp, *lpa; |
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> |
LUENT *lp, *lpa; |
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if (alias != NULL) { /* look up alias */ |
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if ((lpa = lu_find(&rmats, alias)) == NULL) |
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} |
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< |
setmat(id) /* set material to this one */ |
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char *id; |
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> |
void |
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> |
setmat( /* set material to this one */ |
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> |
char *id |
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> |
) |
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{ |
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if (!strcmp(id, curmat)) /* already set? */ |
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return; |
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} |
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setobj(id) /* set object name to this one */ |
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char *id; |
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> |
void |
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> |
setobj( /* set object name to this one */ |
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> |
char *id |
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) |
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{ |
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< |
register char *cp, *cp2; |
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> |
char *cp, *cp2; |
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char *end = NULL; |
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int diff = 0; |
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/* use all but final suffix */ |
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if (end == NULL) |
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end = cp; |
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/* copy to current object */ |
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for (cp = id, cp2 = curobj; cp < end; *cp2++ = *cp++) |
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> |
cp2 = curobj; |
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> |
if (!isalpha(*id)) { /* start with letter */ |
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> |
diff = *cp2 != 'O'; |
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> |
*cp2++ = 'O'; |
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> |
} |
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> |
for (cp = id; cp < end; *cp2++ = *cp++) { |
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> |
if ((*cp < '!') | (*cp > '~')) /* limit to visible chars */ |
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> |
*cp = '?'; |
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diff += *cp != *cp2; |
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} |
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if (!diff && !*cp2) |
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return; |
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*cp2 = '\0'; |
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} |
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|
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|
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init() /* initialize dispatch table and output */ |
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> |
void |
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> |
init(void) /* initialize dispatch table and output */ |
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{ |
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lu_init(&vertab, NVERTS); |
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lu_init(&rdispatch, 22); |
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add2dispatch("tube", o_cylinder); |
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add2dispatch("ring", o_ring); |
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add2dispatch("instance", o_instance); |
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add2dispatch("mesh", o_instance); |
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add2dispatch("plastic", o_plastic); |
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add2dispatch("plastic2", o_plastic); |
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add2dispatch("metal", o_metal); |
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add2dispatch("metal2", o_metal); |
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add2dispatch("glass", o_glass); |
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add2dispatch("dielectric", o_dielectric); |
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add2dispatch("trans", o_trans); |
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add2dispatch("trans2", o_trans); |
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add2dispatch("mirror", o_mirror); |
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add2dispatch("spotlight", o_light); |
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add2dispatch("glow", o_light); |
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add2dispatch("illum", o_illum); |
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< |
puts("# The following was converted from Radiance scene input"); |
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> |
puts("# The following was converted from RADIANCE scene input"); |
| 349 |
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if (hasmult) |
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printf("xf -s %.4e\n", unit_mult); |
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printf("o %s\n", curobj); |
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} |
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|
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|
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< |
uninit() /* mark end of MGF file */ |
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> |
void |
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> |
uninit(void) /* mark end of MGF file */ |
| 357 |
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{ |
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puts("o"); |
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if (hasmult) |
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puts("xf"); |
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< |
puts("# End of data converted from Radiance scene input"); |
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> |
puts("# End of data converted from RADIANCE scene input"); |
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lu_done(&rdispatch); |
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lu_done(&rmats); |
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lu_done(&vertab); |
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} |
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|
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|
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< |
clrverts() /* clear vertex table */ |
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> |
void |
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> |
clrverts(void) /* clear vertex table */ |
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{ |
| 371 |
< |
register int i; |
| 371 |
> |
int i; |
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|
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lu_done(&vertab); |
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for (i = 0; i < NVERTS; i++) |
| 377 |
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} |
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|
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|
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< |
add2dispatch(name, func) /* add function to dispatch table */ |
| 381 |
< |
char *name; |
| 382 |
< |
int (*func)(); |
| 380 |
> |
void |
| 381 |
> |
add2dispatch( /* add function to dispatch table */ |
| 382 |
> |
char *name, |
| 383 |
> |
int (*func)() |
| 384 |
> |
) |
| 385 |
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{ |
| 386 |
< |
register LUENT *lp; |
| 386 |
> |
LUENT *lp; |
| 387 |
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|
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lp = lu_find(&rdispatch, name); |
| 389 |
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if (lp->key != NULL) { |
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|
| 398 |
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|
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char * |
| 400 |
< |
getvertid(vname, vp) /* get/set vertex ID for this point */ |
| 401 |
< |
char *vname; |
| 402 |
< |
FVECT vp; |
| 400 |
> |
getvertid( /* get/set vertex ID for this point */ |
| 401 |
> |
char *vname, |
| 402 |
> |
FVECT vp |
| 403 |
> |
) |
| 404 |
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{ |
| 405 |
< |
char vkey[VKLEN]; |
| 406 |
< |
register LUENT *lp; |
| 407 |
< |
register int i, vndx; |
| 405 |
> |
static char vkey[VKLEN]; |
| 406 |
> |
LUENT *lp; |
| 407 |
> |
int i, vndx; |
| 408 |
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|
| 409 |
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vclock++; /* increment counter */ |
| 410 |
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mkvkey(vkey, vp); |
| 442 |
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|
| 443 |
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|
| 444 |
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int |
| 445 |
< |
o_face(mod, typ, id, fa) /* print out a polygon */ |
| 446 |
< |
char *mod, *typ, *id; |
| 447 |
< |
FUNARGS *fa; |
| 445 |
> |
o_unsupported( /* mark unsupported primitive */ |
| 446 |
> |
char *mod, |
| 447 |
> |
char *typ, |
| 448 |
> |
char *id, |
| 449 |
> |
FUNARGS *fa |
| 450 |
> |
) |
| 451 |
|
{ |
| 452 |
< |
char entbuf[512]; |
| 391 |
< |
register char *cp; |
| 392 |
< |
register int i; |
| 452 |
> |
int i; |
| 453 |
|
|
| 454 |
< |
if (fa->nfargs < 9 | fa->nfargs % 3) |
| 454 |
> |
fputs("\n# Unsupported RADIANCE primitive:\n", stdout); |
| 455 |
> |
printf("# %s %s %s", mod, typ, id); |
| 456 |
> |
printf("\n# %d", fa->nsargs); |
| 457 |
> |
for (i = 0; i < fa->nsargs; i++) |
| 458 |
> |
printf(" %s", fa->sarg[i]); |
| 459 |
> |
#ifdef IARGS |
| 460 |
> |
printf("\n# %d", fa->niargs); |
| 461 |
> |
for (i = 0; i < fa->niargs; i++) |
| 462 |
> |
printf(" %ld", fa->iarg[i]); |
| 463 |
> |
#else |
| 464 |
> |
fputs("\n# 0", stdout); |
| 465 |
> |
#endif |
| 466 |
> |
printf("\n# %d", fa->nfargs); |
| 467 |
> |
for (i = 0; i < fa->nfargs; i++) |
| 468 |
> |
printf(" %g", fa->farg[i]); |
| 469 |
> |
fputs("\n\n", stdout); |
| 470 |
> |
return(0); |
| 471 |
> |
} |
| 472 |
> |
|
| 473 |
> |
|
| 474 |
> |
int |
| 475 |
> |
o_face( /* print out a polygon */ |
| 476 |
> |
char *mod, |
| 477 |
> |
char *typ, |
| 478 |
> |
char *id, |
| 479 |
> |
FUNARGS *fa |
| 480 |
> |
) |
| 481 |
> |
{ |
| 482 |
> |
char entbuf[2048], *linestart; |
| 483 |
> |
char *cp; |
| 484 |
> |
int i; |
| 485 |
> |
|
| 486 |
> |
if ((fa->nfargs < 9) | (fa->nfargs % 3)) |
| 487 |
|
return(-1); |
| 488 |
|
setmat(mod); |
| 489 |
|
setobj(id); |
| 490 |
< |
cp = entbuf; |
| 490 |
> |
cp = linestart = entbuf; |
| 491 |
|
*cp++ = 'f'; |
| 492 |
|
for (i = 0; i < fa->nfargs; i += 3) { |
| 493 |
|
*cp++ = ' '; |
| 494 |
+ |
if (cp - linestart > 72) { |
| 495 |
+ |
*cp++ = '\\'; *cp++ = '\n'; |
| 496 |
+ |
linestart = cp; |
| 497 |
+ |
*cp++ = ' '; *cp++ = ' '; |
| 498 |
+ |
} |
| 499 |
|
getvertid(cp, fa->farg + i); |
| 500 |
|
while (*cp) |
| 501 |
|
cp++; |
| 506 |
|
|
| 507 |
|
|
| 508 |
|
int |
| 509 |
< |
o_cone(mod, typ, id, fa) /* print out a cone */ |
| 510 |
< |
char *mod, *typ, *id; |
| 511 |
< |
register FUNARGS *fa; |
| 509 |
> |
o_cone( /* print out a cone */ |
| 510 |
> |
char *mod, |
| 511 |
> |
char *typ, |
| 512 |
> |
char *id, |
| 513 |
> |
FUNARGS *fa |
| 514 |
> |
) |
| 515 |
|
{ |
| 516 |
|
char v1[6], v2[6]; |
| 517 |
|
|
| 532 |
|
|
| 533 |
|
|
| 534 |
|
int |
| 535 |
< |
o_sphere(mod, typ, id, fa) /* print out a sphere */ |
| 536 |
< |
char *mod, *typ, *id; |
| 537 |
< |
register FUNARGS *fa; |
| 535 |
> |
o_sphere( /* print out a sphere */ |
| 536 |
> |
char *mod, |
| 537 |
> |
char *typ, |
| 538 |
> |
char *id, |
| 539 |
> |
FUNARGS *fa |
| 540 |
> |
) |
| 541 |
|
{ |
| 542 |
|
char cent[6]; |
| 543 |
|
|
| 552 |
|
|
| 553 |
|
|
| 554 |
|
int |
| 555 |
< |
o_cylinder(mod, typ, id, fa) /* print out a cylinder */ |
| 556 |
< |
char *mod, *typ, *id; |
| 557 |
< |
register FUNARGS *fa; |
| 555 |
> |
o_cylinder( /* print out a cylinder */ |
| 556 |
> |
char *mod, |
| 557 |
> |
char *typ, |
| 558 |
> |
char *id, |
| 559 |
> |
FUNARGS *fa |
| 560 |
> |
) |
| 561 |
|
{ |
| 562 |
|
char v1[6], v2[6]; |
| 563 |
|
|
| 574 |
|
|
| 575 |
|
|
| 576 |
|
int |
| 577 |
< |
o_ring(mod, typ, id, fa) /* print out a ring */ |
| 578 |
< |
char *mod, *typ, *id; |
| 579 |
< |
register FUNARGS *fa; |
| 577 |
> |
o_ring( /* print out a ring */ |
| 578 |
> |
char *mod, |
| 579 |
> |
char *typ, |
| 580 |
> |
char *id, |
| 581 |
> |
FUNARGS *fa |
| 582 |
> |
) |
| 583 |
|
{ |
| 584 |
|
if (fa->nfargs != 8) |
| 585 |
|
return(-1); |
| 600 |
|
|
| 601 |
|
|
| 602 |
|
int |
| 603 |
< |
o_instance(mod, typ, id, fa) /* convert an instance */ |
| 604 |
< |
char *mod, *typ, *id; |
| 605 |
< |
FUNARGS *fa; |
| 603 |
> |
o_instance( /* convert an instance (or mesh) */ |
| 604 |
> |
char *mod, |
| 605 |
> |
char *typ, |
| 606 |
> |
char *id, |
| 607 |
> |
FUNARGS *fa |
| 608 |
> |
) |
| 609 |
|
{ |
| 610 |
< |
register int i; |
| 611 |
< |
register char *cp; |
| 610 |
> |
int i; |
| 611 |
> |
char *cp; |
| 612 |
|
char *start = NULL, *end = NULL; |
| 613 |
|
/* |
| 614 |
|
* We don't really know how to do this, so we just create |
| 644 |
|
|
| 645 |
|
|
| 646 |
|
int |
| 647 |
< |
o_source(mod, typ, id, fa) /* convert a source */ |
| 648 |
< |
char *mod, *typ, *id; |
| 649 |
< |
FUNARGS *fa; |
| 647 |
> |
o_illum( /* convert an illum material */ |
| 648 |
> |
char *mod, |
| 649 |
> |
char *typ, |
| 650 |
> |
char *id, |
| 651 |
> |
FUNARGS *fa |
| 652 |
> |
) |
| 653 |
|
{ |
| 539 |
– |
return(0); /* there is no MGF equivalent! */ |
| 540 |
– |
} |
| 541 |
– |
|
| 542 |
– |
|
| 543 |
– |
int |
| 544 |
– |
o_illum(mod, typ, id, fa) /* convert an illum material */ |
| 545 |
– |
char *mod, *typ, *id; |
| 546 |
– |
FUNARGS *fa; |
| 547 |
– |
{ |
| 654 |
|
if (fa->nsargs == 1 && strcmp(fa->sarg[0], VOIDID)) { |
| 655 |
|
newmat(id, fa->sarg[0]); /* just create alias */ |
| 656 |
|
return(0); |
| 663 |
|
|
| 664 |
|
|
| 665 |
|
int |
| 666 |
< |
o_plastic(mod, typ, id, fa) /* convert a plastic material */ |
| 667 |
< |
char *mod, *typ, *id; |
| 668 |
< |
register FUNARGS *fa; |
| 666 |
> |
o_plastic( /* convert a plastic material */ |
| 667 |
> |
char *mod, |
| 668 |
> |
char *typ, |
| 669 |
> |
char *id, |
| 670 |
> |
FUNARGS *fa |
| 671 |
> |
) |
| 672 |
|
{ |
| 673 |
|
COLOR cxyz, rrgb; |
| 674 |
|
double d; |
| 681 |
|
puts("\tc"); /* put diffuse component */ |
| 682 |
|
d = cxyz[0] + cxyz[1] + cxyz[2]; |
| 683 |
|
if (d > FTINY) |
| 684 |
< |
printf("\t\tcxy %.4f %.4f\n", cxyz[0]/d, cxyz[1]/d); |
| 685 |
< |
printf("\trd %.4f\n", cxyz[1]*(1. - fa->farg[3])); |
| 684 |
> |
printf("\t\tcxy %.6f %.6f\n", cxyz[0]/d, cxyz[1]/d); |
| 685 |
> |
printf("\trd %.6f\n", cxyz[1]*(1. - fa->farg[3])); |
| 686 |
|
if (fa->farg[3] > FTINY) { /* put specular component */ |
| 687 |
|
puts("\tc"); |
| 688 |
< |
printf("\trs %.4f %.4f\n", fa->farg[3], |
| 688 |
> |
printf("\trs %.6f %.6f\n", fa->farg[3], |
| 689 |
|
typ[7]=='2' ? .5*(fa->farg[4] + fa->farg[5]) : |
| 690 |
|
fa->farg[4]); |
| 691 |
|
} |
| 694 |
|
|
| 695 |
|
|
| 696 |
|
int |
| 697 |
< |
o_metal(mod, typ, id, fa) /* convert a metal material */ |
| 698 |
< |
char *mod, *typ, *id; |
| 699 |
< |
register FUNARGS *fa; |
| 697 |
> |
o_metal( /* convert a metal material */ |
| 698 |
> |
char *mod, |
| 699 |
> |
char *typ, |
| 700 |
> |
char *id, |
| 701 |
> |
FUNARGS *fa |
| 702 |
> |
) |
| 703 |
|
{ |
| 704 |
|
COLOR cxyz, rrgb; |
| 705 |
|
double d; |
| 712 |
|
puts("\tc"); /* put diffuse component */ |
| 713 |
|
d = cxyz[0] + cxyz[1] + cxyz[2]; |
| 714 |
|
if (d > FTINY) |
| 715 |
< |
printf("\t\tcxy %.4f %.4f\n", cxyz[0]/d, cxyz[1]/d); |
| 716 |
< |
printf("\trd %.4f\n", cxyz[1]*(1. - fa->farg[3])); |
| 715 |
> |
printf("\t\tcxy %.6f %.6f\n", cxyz[0]/d, cxyz[1]/d); |
| 716 |
> |
printf("\trd %.6f\n", cxyz[1]*(1. - fa->farg[3])); |
| 717 |
|
/* put specular component */ |
| 718 |
< |
printf("\trs %.4f %.4f\n", cxyz[1]*fa->farg[3], |
| 718 |
> |
printf("\trs %.6f %.6f\n", cxyz[1]*fa->farg[3], |
| 719 |
|
typ[5]=='2' ? .5*(fa->farg[4] + fa->farg[5]) : |
| 720 |
|
fa->farg[4]); |
| 721 |
|
return(0); |
| 723 |
|
|
| 724 |
|
|
| 725 |
|
int |
| 726 |
< |
o_glass(mod, typ, id, fa) /* convert a glass material */ |
| 727 |
< |
char *mod, *typ, *id; |
| 728 |
< |
register FUNARGS *fa; |
| 726 |
> |
o_glass( /* convert a glass material */ |
| 727 |
> |
char *mod, |
| 728 |
> |
char *typ, |
| 729 |
> |
char *id, |
| 730 |
> |
FUNARGS *fa |
| 731 |
> |
) |
| 732 |
|
{ |
| 733 |
|
COLOR cxyz, rrgb, trgb; |
| 734 |
|
double nrfr = 1.52, F, d; |
| 735 |
< |
register int i; |
| 735 |
> |
int i; |
| 736 |
|
|
| 737 |
|
if (fa->nfargs != 3 && fa->nfargs != 4) |
| 738 |
|
return(-1); |
| 739 |
|
newmat(id, NULL); |
| 740 |
|
if (fa->nfargs == 4) |
| 741 |
|
nrfr = fa->farg[3]; |
| 742 |
+ |
printf("\tir %f 0\n", nrfr); |
| 743 |
|
F = (1. - nrfr)/(1. + nrfr); /* use normal incidence */ |
| 744 |
|
F *= F; |
| 745 |
|
for (i = 0; i < 3; i++) { |
| 752 |
|
puts("\tc"); |
| 753 |
|
d = cxyz[0] + cxyz[1] + cxyz[2]; |
| 754 |
|
if (d > FTINY) |
| 755 |
< |
printf("\t\tcxy %.4f %.4f\n", cxyz[0]/d, cxyz[1]/d); |
| 756 |
< |
printf("\trs %.4f 0\n", cxyz[1]); |
| 755 |
> |
printf("\t\tcxy %.6f %.6f\n", cxyz[0]/d, cxyz[1]/d); |
| 756 |
> |
printf("\trs %.6f 0\n", cxyz[1]); |
| 757 |
|
rgb_cie(cxyz, trgb); /* put transmitted component */ |
| 758 |
|
puts("\tc"); |
| 759 |
|
d = cxyz[0] + cxyz[1] + cxyz[2]; |
| 760 |
|
if (d > FTINY) |
| 761 |
< |
printf("\t\tcxy %.4f %.4f\n", cxyz[0]/d, cxyz[1]/d); |
| 762 |
< |
printf("\tts %.4f 0\n", cxyz[1]); |
| 761 |
> |
printf("\t\tcxy %.6f %.6f\n", cxyz[0]/d, cxyz[1]/d); |
| 762 |
> |
printf("\tts %.6f 0\n", cxyz[1]); |
| 763 |
|
return(0); |
| 764 |
|
} |
| 765 |
|
|
| 766 |
|
|
| 767 |
|
int |
| 768 |
< |
o_mirror(mod, typ, id, fa) /* convert a mirror material */ |
| 769 |
< |
char *mod, *typ, *id; |
| 770 |
< |
register FUNARGS *fa; |
| 768 |
> |
o_dielectric( /* convert a dielectric material */ |
| 769 |
> |
char *mod, |
| 770 |
> |
char *typ, |
| 771 |
> |
char *id, |
| 772 |
> |
FUNARGS *fa |
| 773 |
> |
) |
| 774 |
|
{ |
| 775 |
+ |
COLOR cxyz, trgb; |
| 776 |
+ |
double F, d; |
| 777 |
+ |
int i; |
| 778 |
+ |
|
| 779 |
+ |
if (fa->nfargs != 5) |
| 780 |
+ |
return(-1); |
| 781 |
+ |
newmat(id, NULL); |
| 782 |
+ |
F = (1. - fa->farg[3])/(1. + fa->farg[3]); /* normal incidence */ |
| 783 |
+ |
F *= F; |
| 784 |
+ |
for (i = 0; i < 3; i++) |
| 785 |
+ |
trgb[i] = (1. - F)*pow(fa->farg[i], C_1SIDEDTHICK/unit_mult); |
| 786 |
+ |
printf("\tir %f 0\n", fa->farg[3]); /* put index of refraction */ |
| 787 |
+ |
printf("\tsides 1\n"); |
| 788 |
+ |
puts("\tc"); /* put reflected component */ |
| 789 |
+ |
printf("\trs %.6f 0\n", F); |
| 790 |
+ |
rgb_cie(cxyz, trgb); /* put transmitted component */ |
| 791 |
+ |
puts("\tc"); |
| 792 |
+ |
d = cxyz[0] + cxyz[1] + cxyz[2]; |
| 793 |
+ |
if (d > FTINY) |
| 794 |
+ |
printf("\t\tcxy %.6f %.6f\n", cxyz[0]/d, cxyz[1]/d); |
| 795 |
+ |
printf("\tts %.6f 0\n", cxyz[1]); |
| 796 |
+ |
return(0); |
| 797 |
+ |
} |
| 798 |
+ |
|
| 799 |
+ |
|
| 800 |
+ |
int |
| 801 |
+ |
o_mirror( /* convert a mirror material */ |
| 802 |
+ |
char *mod, |
| 803 |
+ |
char *typ, |
| 804 |
+ |
char *id, |
| 805 |
+ |
FUNARGS *fa |
| 806 |
+ |
) |
| 807 |
+ |
{ |
| 808 |
|
COLOR cxyz, rrgb; |
| 809 |
|
double d; |
| 810 |
|
|
| 820 |
|
puts("\tc"); /* put specular component */ |
| 821 |
|
d = cxyz[0] + cxyz[1] + cxyz[2]; |
| 822 |
|
if (d > FTINY) |
| 823 |
< |
printf("\t\tcxy %.4f %.4f\n", cxyz[0]/d, cxyz[1]/d); |
| 824 |
< |
printf("\trs %.4f 0\n", cxyz[1]); |
| 823 |
> |
printf("\t\tcxy %.6f %.6f\n", cxyz[0]/d, cxyz[1]/d); |
| 824 |
> |
printf("\trs %.6f 0\n", cxyz[1]); |
| 825 |
|
return(0); |
| 826 |
|
} |
| 827 |
|
|
| 828 |
|
|
| 829 |
|
int |
| 830 |
< |
o_trans(mod, typ, id, fa) /* convert a trans material */ |
| 831 |
< |
char *mod, *typ, *id; |
| 832 |
< |
register FUNARGS *fa; |
| 830 |
> |
o_trans( /* convert a trans material */ |
| 831 |
> |
char *mod, |
| 832 |
> |
char *typ, |
| 833 |
> |
char *id, |
| 834 |
> |
FUNARGS *fa |
| 835 |
> |
) |
| 836 |
|
{ |
| 837 |
|
COLOR cxyz, rrgb; |
| 838 |
|
double rough, trans, tspec, d; |
| 839 |
|
|
| 840 |
< |
if (typ[4] == '2') { /* trans2 */ |
| 840 |
> |
if (typ[5] == '2') { /* trans2 */ |
| 841 |
|
if (fa->nfargs != 8) |
| 842 |
|
return(-1); |
| 843 |
|
rough = .5*(fa->farg[4] + fa->farg[5]); |
| 856 |
|
puts("\tc"); /* put transmitted diffuse */ |
| 857 |
|
d = cxyz[0] + cxyz[1] + cxyz[2]; |
| 858 |
|
if (d > FTINY) |
| 859 |
< |
printf("\t\tcxy %.4f %.4f\n", cxyz[0]/d, cxyz[1]/d); |
| 860 |
< |
printf("\ttd %.4f\n", cxyz[1]*trans*(1. - fa->farg[3])*(1. - tspec)); |
| 859 |
> |
printf("\t\tcxy %.6f %.6f\n", cxyz[0]/d, cxyz[1]/d); |
| 860 |
> |
printf("\ttd %.6f\n", cxyz[1]*trans*(1. - fa->farg[3])*(1. - tspec)); |
| 861 |
|
/* put transmitted specular */ |
| 862 |
< |
printf("\tts %.4f %.4f\n", cxyz[1]*trans*tspec*(1. - fa->farg[3]), rough); |
| 862 |
> |
printf("\tts %.6f %.6f\n", cxyz[1]*trans*tspec*(1. - fa->farg[3]), rough); |
| 863 |
|
/* put reflected diffuse */ |
| 864 |
< |
printf("\trd %.4f\n", cxyz[1]*(1. - fa->farg[3])*(1. - trans)); |
| 864 |
> |
printf("\trd %.6f\n", cxyz[1]*(1. - fa->farg[3])*(1. - trans)); |
| 865 |
|
puts("\tc"); /* put reflected specular */ |
| 866 |
< |
printf("\trs %.4f %.4f\n", fa->farg[3], rough); |
| 866 |
> |
printf("\trs %.6f %.6f\n", fa->farg[3], rough); |
| 867 |
|
return(0); |
| 868 |
|
} |
| 869 |
|
|
| 870 |
|
|
| 871 |
|
int |
| 872 |
< |
o_light(mod, typ, id, fa) /* convert a light type */ |
| 873 |
< |
char *mod, *typ, *id; |
| 874 |
< |
register FUNARGS *fa; |
| 872 |
> |
o_light( /* convert a light type */ |
| 873 |
> |
char *mod, |
| 874 |
> |
char *typ, |
| 875 |
> |
char *id, |
| 876 |
> |
FUNARGS *fa |
| 877 |
> |
) |
| 878 |
|
{ |
| 879 |
|
COLOR cxyz, rrgb; |
| 880 |
|
double d; |
| 887 |
|
d = cxyz[0] + cxyz[1] + cxyz[2]; |
| 888 |
|
puts("\tc"); |
| 889 |
|
if (d > FTINY) |
| 890 |
< |
printf("\t\tcxy %.4f %.4f\n", cxyz[0]/d, cxyz[1]/d); |
| 890 |
> |
printf("\t\tcxy %.6f %.6f\n", cxyz[0]/d, cxyz[1]/d); |
| 891 |
|
printf("\ted %.4g\n", cxyz[1]*(PI*WHTEFFICACY)); |
| 892 |
|
return(0); |
| 893 |
|
} |
