| # | Line 49 | Line 49 | typedef struct ray { | |
|---|---|---|
| 49 | FVECT pert; /* surface normal perturbation */ | |
| 50 | COLOR pcol; /* pattern color */ | |
| 51 | COLOR rcol; /* returned ray value */ | |
| 52 | + | double rt; /* returned effective ray length */ |
| 53 | } RAY; | |
| 54 | ||
| 55 | extern double raynormal(); | |
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