| 20 |
|
* < -1: it is an index to a set of objects |
| 21 |
|
*/ |
| 22 |
|
|
| 23 |
< |
typedef int OCTREE; |
| 23 |
> |
#ifndef OCTREE |
| 24 |
> |
#define OCTREE int |
| 25 |
> |
#endif |
| 26 |
|
|
| 27 |
|
#define EMPTY (-1) |
| 28 |
|
|
| 31 |
|
#define istree(ot) ((ot) > EMPTY) |
| 32 |
|
|
| 33 |
|
#define oseti(ot) (-(ot)-2) /* object set index */ |
| 34 |
< |
#define octbi(ot) ((ot)>>8) /* octree block index */ |
| 35 |
< |
#define octti(ot) (((ot)&0377)<<3)/* octree index in block */ |
| 34 |
> |
#define OCTBLKSIZ 04000 /* octree block size */ |
| 35 |
> |
#define octbi(ot) ((ot)>>11) /* octree block index */ |
| 36 |
> |
#define octti(ot) (((ot)&03777)<<3)/* octree index in block */ |
| 37 |
|
|
| 38 |
+ |
#ifndef MAXOBLK |
| 39 |
+ |
#ifdef BIGMEM |
| 40 |
+ |
#define MAXOBLK 32767 /* maximum octree block */ |
| 41 |
+ |
#else |
| 42 |
|
#define MAXOBLK 4095 /* maximum octree block */ |
| 43 |
+ |
#endif |
| 44 |
+ |
#endif |
| 45 |
|
|
| 46 |
|
extern OCTREE *octblock[MAXOBLK]; /* octree blocks */ |
| 47 |
|
|
| 70 |
|
#define IO_FILES 010 /* object file names */ |
| 71 |
|
#define IO_BOUNDS 020 /* octree boundary */ |
| 72 |
|
#define IO_ALL (~0) /* everything */ |
| 73 |
+ |
/* octree format identifier */ |
| 74 |
+ |
#define OCTFMT "Radiance_octree" |
| 75 |
|
/* magic number for octree files */ |
| 76 |
< |
#define OCTMAGIC (275+sizeof(OBJECT)) |
| 76 |
> |
#define MAXOBJSIZ 8 /* maximum sizeof(OBJECT) */ |
| 77 |
> |
#define OCTMAGIC ( 4 *MAXOBJSIZ+251) /* increment first value */ |
| 78 |
|
/* octree node types */ |
| 79 |
|
#define OT_EMPTY 0 |
| 80 |
|
#define OT_FULL 1 |
| 81 |
|
#define OT_TREE 2 |
| 82 |
+ |
/* return values for surface functions */ |
| 83 |
+ |
#define O_MISS 0 /* no intersection */ |
| 84 |
+ |
#define O_HIT 1 /* intersection */ |
| 85 |
+ |
#define O_IN 2 /* cube contained entirely */ |
