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Comparing ray/src/rt/pmapdata.h (file contents):
Revision 2.4 by greg, Wed May 20 14:15:26 2015 UTC vs.
Revision 2.8 by greg, Tue Aug 18 18:45:55 2015 UTC

# Line 1 | Line 1
1 + /* RCSid $Id$ */
2   /*
3     ==================================================================
4     Photon map data structures and kd-tree handling  
# Line 34 | Line 35
35  
36     /* Primary photon ray for light source contributions */
37     typedef struct {
38 <      short srcIdx;               /* Index of emitting light source */
39 <      float dir [3], pos [3];     /* Incident dir & hit point */
38 >      int32 srcIdx;               /* Index of emitting light source */
39 >      int32 dir;                  /* Encoded ray direction */
40 >      float pos [3];              /* Hit point */
41     } PhotonPrimary;
42        
43     #define photonSrcIdx(pm, p) ((pm) -> primary [(p) -> primary].srcIdx)

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