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root/radiance/ray/src/rt/preload.c
Revision: 2.4
Committed: Mon Jan 25 15:15:41 1993 UTC (31 years, 3 months ago) by greg
Content type: text/plain
Branch: MAIN
Changes since 2.3: +0 -13 lines
Log Message:
modified OBJREC and RAY structures to avoid redundant intersection
testing using sets instead of flags

File Contents

# User Rev Content
1 greg 2.1 /* Copyright (c) 1993 Regents of the University of California */
2    
3     #ifndef lint
4     static char SCCSid[] = "$SunId$ LBL";
5     #endif
6    
7     /*
8     * Preload associated object structures to maximize memory sharing.
9     */
10    
11     #include "standard.h"
12     #include "object.h"
13     #include "otypes.h"
14     #include "face.h"
15     #include "cone.h"
16 greg 2.2 #include "instance.h"
17 greg 2.1
18    
19     int
20     load_os(op) /* load associated data for object */
21     register OBJREC *op;
22     {
23     switch (op->otype) {
24     case OBJ_FACE: /* polygon */
25     getface(op);
26     return(1);
27     case OBJ_CONE: /* cone */
28     case OBJ_RING: /* disk */
29     case OBJ_CYLINDER: /* cylinder */
30     case OBJ_CUP: /* inverted cone */
31     case OBJ_TUBE: /* inverted cylinder */
32     getcone(op, 1);
33     return(1);
34     case OBJ_INSTANCE: /* octree instance */
35     getinstance(op, IO_ALL);
36     return(1);
37     }
38 greg 2.2 /* don't bother with non-surfaces -- too tricky */
39     return(0);
40 greg 2.1 }
41    
42    
43     preload_objs() /* preload object data structures */
44     {
45     register OBJECT on;
46 greg 2.3 /* note that nobjects may change during loop */
47 greg 2.1 for (on = 0; on < nobjects; on++)
48     load_os(objptr(on));
49 greg 2.3 }