| 63 |
|
scompile("Ix=$16;Iy=$17;Iz=$18;", NULL, 0); |
| 64 |
|
scompile("Jx=$19;Jy=$20;Jz=$21;", NULL, 0); |
| 65 |
|
scompile("Kx=$22;Ky=$23;Kz=$24;", NULL, 0); |
| 66 |
< |
scompile("Lu=$25;Lv=$26;", NULL, 0); |
| 66 |
> |
scompile("Lu=$26;Lv=$27;", NULL, 0); |
| 67 |
|
funset("arg", 1, '=', l_arg); |
| 68 |
|
funset("erf", 1, ':', l_erf); |
| 69 |
|
funset("erfc", 1, ':', l_erfc); |
| 257 |
|
if (--n < 0) |
| 258 |
|
goto badchan; |
| 259 |
|
|
| 260 |
< |
if (n < 3) /* ray direction */ |
| 260 |
> |
if (n <= 2) /* ray direction */ |
| 261 |
|
|
| 262 |
|
return( ( fray->rdir[0]*funcxf.xfm[0][n] + |
| 263 |
|
fray->rdir[1]*funcxf.xfm[1][n] + |
| 264 |
|
fray->rdir[2]*funcxf.xfm[2][n] ) |
| 265 |
|
/ funcxf.sca ); |
| 266 |
|
|
| 267 |
< |
if (n < 6) /* surface normal */ |
| 267 |
> |
if (n <= 5) /* surface normal */ |
| 268 |
|
|
| 269 |
|
return( ( fray->ron[0]*funcxf.xfm[0][n-3] + |
| 270 |
|
fray->ron[1]*funcxf.xfm[1][n-3] + |
| 271 |
|
fray->ron[2]*funcxf.xfm[2][n-3] ) |
| 272 |
|
/ funcxf.sca ); |
| 273 |
|
|
| 274 |
< |
if (n < 9) /* intersection */ |
| 274 |
> |
if (n <= 8) /* intersection */ |
| 275 |
|
|
| 276 |
|
return( fray->rop[0]*funcxf.xfm[0][n-6] + |
| 277 |
|
fray->rop[1]*funcxf.xfm[1][n-6] + |
| 289 |
|
if (n == 11) /* scale */ |
| 290 |
|
return(funcxf.sca); |
| 291 |
|
|
| 292 |
< |
if (n < 15) /* origin */ |
| 292 |
> |
if (n <= 14) /* origin */ |
| 293 |
|
return(funcxf.xfm[3][n-12]); |
| 294 |
|
|
| 295 |
< |
if (n < 18) /* i unit vector */ |
| 295 |
> |
if (n <= 17) /* i unit vector */ |
| 296 |
|
return(funcxf.xfm[0][n-15] / funcxf.sca); |
| 297 |
|
|
| 298 |
< |
if (n < 21) /* j unit vector */ |
| 299 |
< |
return(funcxf.xfm[1][n-15] / funcxf.sca); |
| 298 |
> |
if (n <= 20) /* j unit vector */ |
| 299 |
> |
return(funcxf.xfm[1][n-18] / funcxf.sca); |
| 300 |
|
|
| 301 |
< |
if (n < 24) /* k unit vector */ |
| 301 |
> |
if (n <= 23) /* k unit vector */ |
| 302 |
|
return(funcxf.xfm[2][n-21] / funcxf.sca); |
| 303 |
|
|
| 304 |
< |
if (n < 25) /* single ray (shadow) distance */ |
| 304 |
> |
if (n == 24) /* single ray (shadow) distance */ |
| 305 |
|
return((fray->rot+raydist(fray->parent,SHADOW)) * funcxf.sca); |
| 306 |
|
|
| 307 |
< |
if (n < 27) /* local (u,v) coordinates */ |
| 308 |
< |
return(fray->uv[n-26]); |
| 307 |
> |
if (n <= 26) /* local (u,v) coordinates */ |
| 308 |
> |
return(fray->uv[n-25]); |
| 309 |
|
badchan: |
| 310 |
|
error(USER, "illegal channel number"); |
| 311 |
|
return(0.0); |
