| 1 |
< |
/* Copyright (c) 1986 Regents of the University of California */ |
| 1 |
> |
/* Copyright (c) 1991 Regents of the University of California */ |
| 2 |
|
|
| 3 |
|
#ifndef lint |
| 4 |
|
static char SCCSid[] = "$SunId$ LBL"; |
| 15 |
|
#include "otypes.h" |
| 16 |
|
|
| 17 |
|
|
| 18 |
< |
typedef struct { |
| 19 |
< |
double xfm[4][4]; /* transform matrix */ |
| 20 |
< |
double sca; /* scalefactor */ |
| 21 |
< |
} XF; |
| 18 |
> |
XF unitxf = { /* identity transform */ |
| 19 |
> |
1.0, 0.0, 0.0, 0.0, |
| 20 |
> |
0.0, 1.0, 0.0, 0.0, |
| 21 |
> |
0.0, 0.0, 1.0, 0.0, |
| 22 |
> |
0.0, 0.0, 0.0, 1.0, |
| 23 |
> |
1.0 |
| 24 |
> |
}; |
| 25 |
|
|
| 26 |
< |
static OBJREC *fobj; /* current function object */ |
| 27 |
< |
static RAY *fray; /* current function ray */ |
| 28 |
< |
static XF fxf; /* current transformation */ |
| 26 |
> |
XF funcxf; /* current transformation */ |
| 27 |
> |
static OBJREC *fobj = NULL; /* current function object */ |
| 28 |
> |
static RAY *fray = NULL; /* current function ray */ |
| 29 |
|
|
| 30 |
|
|
| 31 |
< |
setmap(m, r, xfm, sca) /* set channels for function call */ |
| 31 |
> |
setmap(m, r, bx) /* set channels for function call */ |
| 32 |
|
OBJREC *m; |
| 33 |
|
register RAY *r; |
| 34 |
< |
double xfm[4][4]; |
| 32 |
< |
double sca; |
| 34 |
> |
XF *bx; |
| 35 |
|
{ |
| 36 |
< |
extern double l_noise3(), l_noise3a(), l_noise3b(), l_noise3c(); |
| 35 |
< |
extern double l_hermite(), l_fnoise3(), l_arg(); |
| 36 |
> |
extern double l_arg(); |
| 37 |
|
extern long eclock; |
| 38 |
|
static char *initfile = "rayinit.cal"; |
| 39 |
< |
|
| 39 |
> |
/* initialize if first call */ |
| 40 |
|
if (initfile != NULL) { |
| 41 |
|
loadfunc(initfile); |
| 42 |
|
scompile("Dx=$1;Dy=$2;Dz=$3;", NULL, 0); |
| 47 |
|
scompile("Ix=$16;Iy=$17;Iz=$18;", NULL, 0); |
| 48 |
|
scompile("Jx=$19;Jy=$20;Jz=$21;", NULL, 0); |
| 49 |
|
scompile("Kx=$22;Ky=$23;Kz=$24;", NULL, 0); |
| 50 |
< |
funset("arg", 1, l_arg); |
| 51 |
< |
funset("noise3", 3, l_noise3); |
| 51 |
< |
funset("noise3a", 3, l_noise3a); |
| 52 |
< |
funset("noise3b", 3, l_noise3b); |
| 53 |
< |
funset("noise3c", 3, l_noise3c); |
| 54 |
< |
funset("hermite", 5, l_hermite); |
| 55 |
< |
funset("fnoise3", 3, l_fnoise3); |
| 50 |
> |
funset("arg", 1, '=', l_arg); |
| 51 |
> |
setnoisefuncs(); |
| 52 |
|
initfile = NULL; |
| 53 |
|
} |
| 54 |
|
fobj = m; |
| 55 |
|
fray = r; |
| 56 |
< |
fxf.sca = r->robs * sca; |
| 57 |
< |
multmat4(fxf.xfm, r->robx, xfm); |
| 56 |
> |
if (r->rox != NULL) |
| 57 |
> |
if (bx != &unitxf) { |
| 58 |
> |
funcxf.sca = r->rox->b.sca * bx->sca; |
| 59 |
> |
multmat4(funcxf.xfm, r->rox->b.xfm, bx->xfm); |
| 60 |
> |
} else |
| 61 |
> |
copystruct(&funcxf, &r->rox->b); |
| 62 |
> |
else |
| 63 |
> |
copystruct(&funcxf, bx); |
| 64 |
|
eclock++; /* notify expression evaluator */ |
| 65 |
|
} |
| 66 |
|
|
| 78 |
|
for (n = m->oargs.nsargs, sa = m->oargs.sarg; |
| 79 |
|
n > 0 && **sa != '-'; n--, sa++) |
| 80 |
|
; |
| 81 |
< |
mxf = (XF *)malloc(sizeof(XF)); |
| 82 |
< |
if (mxf == NULL) |
| 83 |
< |
goto memerr; |
| 84 |
< |
if (invxf(mxf->xfm, &mxf->sca, n, sa) != n) |
| 85 |
< |
objerror(m, USER, "bad transform"); |
| 86 |
< |
if (mxf->sca < 0.0) |
| 87 |
< |
mxf->sca = -mxf->sca; |
| 81 |
> |
if (n == 0) |
| 82 |
> |
mxf = &unitxf; |
| 83 |
> |
else { |
| 84 |
> |
mxf = (XF *)malloc(sizeof(XF)); |
| 85 |
> |
if (mxf == NULL) |
| 86 |
> |
goto memerr; |
| 87 |
> |
if (invxf(mxf, n, sa) != n) |
| 88 |
> |
objerror(m, USER, "bad transform"); |
| 89 |
> |
if (mxf->sca < 0.0) |
| 90 |
> |
mxf->sca = -mxf->sca; |
| 91 |
> |
} |
| 92 |
|
m->os = (char *)mxf; |
| 93 |
|
} |
| 94 |
< |
setmap(m, r, mxf->xfm, mxf->sca); |
| 94 |
> |
setmap(m, r, mxf); |
| 95 |
|
return; |
| 96 |
|
memerr: |
| 97 |
|
error(SYSTEM, "out of memory in setfunc"); |
| 143 |
|
|
| 144 |
|
if (n < 3) /* ray direction */ |
| 145 |
|
|
| 146 |
< |
return( ( fray->rdir[0]*fxf.xfm[0][n] + |
| 147 |
< |
fray->rdir[1]*fxf.xfm[1][n] + |
| 148 |
< |
fray->rdir[2]*fxf.xfm[2][n] ) |
| 149 |
< |
/ fxf.sca ); |
| 146 |
> |
return( ( fray->rdir[0]*funcxf.xfm[0][n] + |
| 147 |
> |
fray->rdir[1]*funcxf.xfm[1][n] + |
| 148 |
> |
fray->rdir[2]*funcxf.xfm[2][n] ) |
| 149 |
> |
/ funcxf.sca ); |
| 150 |
|
|
| 151 |
|
if (n < 6) /* surface normal */ |
| 152 |
|
|
| 153 |
< |
return( ( fray->ron[0]*fxf.xfm[0][n-3] + |
| 154 |
< |
fray->ron[1]*fxf.xfm[1][n-3] + |
| 155 |
< |
fray->ron[2]*fxf.xfm[2][n-3] ) |
| 156 |
< |
/ fxf.sca ); |
| 153 |
> |
return( ( fray->ron[0]*funcxf.xfm[0][n-3] + |
| 154 |
> |
fray->ron[1]*funcxf.xfm[1][n-3] + |
| 155 |
> |
fray->ron[2]*funcxf.xfm[2][n-3] ) |
| 156 |
> |
/ funcxf.sca ); |
| 157 |
|
|
| 158 |
|
if (n < 9) /* intersection */ |
| 159 |
|
|
| 160 |
< |
return( fray->rop[0]*fxf.xfm[0][n-6] + |
| 161 |
< |
fray->rop[1]*fxf.xfm[1][n-6] + |
| 162 |
< |
fray->rop[2]*fxf.xfm[2][n-6] + |
| 163 |
< |
fxf.xfm[3][n-6] ); |
| 160 |
> |
return( fray->rop[0]*funcxf.xfm[0][n-6] + |
| 161 |
> |
fray->rop[1]*funcxf.xfm[1][n-6] + |
| 162 |
> |
fray->rop[2]*funcxf.xfm[2][n-6] + |
| 163 |
> |
funcxf.xfm[3][n-6] ); |
| 164 |
|
|
| 165 |
|
if (n == 9) { /* distance */ |
| 166 |
|
|
| 167 |
|
sum = fray->rot; |
| 168 |
|
for (r = fray->parent; r != NULL; r = r->parent) |
| 169 |
|
sum += r->rot; |
| 170 |
< |
return(sum * fxf.sca); |
| 170 |
> |
return(sum * funcxf.sca); |
| 171 |
|
|
| 172 |
|
} |
| 173 |
|
if (n == 10) /* dot product */ |
| 174 |
|
return(fray->rod); |
| 175 |
|
|
| 176 |
|
if (n == 11) /* scale */ |
| 177 |
< |
return(fxf.sca); |
| 177 |
> |
return(funcxf.sca); |
| 178 |
|
|
| 179 |
|
if (n < 15) /* origin */ |
| 180 |
< |
return(fxf.xfm[3][n-12]); |
| 180 |
> |
return(funcxf.xfm[3][n-12]); |
| 181 |
|
|
| 182 |
|
if (n < 18) /* i unit vector */ |
| 183 |
< |
return(fxf.xfm[0][n-15] / fxf.sca); |
| 183 |
> |
return(funcxf.xfm[0][n-15] / funcxf.sca); |
| 184 |
|
|
| 185 |
|
if (n < 21) /* j unit vector */ |
| 186 |
< |
return(fxf.xfm[1][n-15] / fxf.sca); |
| 186 |
> |
return(funcxf.xfm[1][n-15] / funcxf.sca); |
| 187 |
|
|
| 188 |
|
if (n < 24) /* k unit vector */ |
| 189 |
< |
return(fxf.xfm[2][n-21] / fxf.sca); |
| 189 |
> |
return(funcxf.xfm[2][n-21] / funcxf.sca); |
| 190 |
|
badchan: |
| 191 |
|
error(USER, "illegal channel number"); |
| 192 |
|
} |
