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| 34 | ||
| 35 | /* Primary photon ray for light source contributions */ | |
| 36 | typedef struct { | |
| 37 | < | short srcIdx; /* Index of emitting light source */ |
| 38 | < | float dir [3], pos [3]; /* Incident dir & hit point */ |
| 37 | > | uint32 srcIdx; /* Index of emitting light source */ |
| 38 | > | int32 dir; /* Encoded ray direction */ |
| 39 | > | float pos [3]; /* Hit point */ |
| 40 | } PhotonPrimary; | |
| 41 | ||
| 42 | #define photonSrcIdx(pm, p) ((pm) -> primary [(p) -> primary].srcIdx) | |
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