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27 | #define RAYREFL (SHADOW|REFLECTED|AMBIENT|SPECULAR) | |
28 | ||
29 | typedef struct ray { | |
30 | < | long rno; /* unique ray number */ |
30 | > | unsigned long rno; /* unique ray number */ |
31 | int rlvl; /* number of reflections for this ray */ | |
32 | float rweight; /* cumulative weight of this ray */ | |
33 | short rtype; /* ray type */ |
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