diff options
Diffstat (limited to 'test/raytracer/point.h')
-rw-r--r-- | test/raytracer/point.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/test/raytracer/point.h b/test/raytracer/point.h new file mode 100644 index 00000000..b8d6ff0f --- /dev/null +++ b/test/raytracer/point.h @@ -0,0 +1,18 @@ +struct point { + flt x, y, z; +}; + +#if 0 +static inline flt dist2(struct point * p1, struct point * p2) +{ + flt dx = p2->x - p1->x; + flt dy = p2->y - p1->y; + flt dz = p2->z - p1->z; + return dx * dx + dy * dy + dz * dz; +} +#else +#define dist2(p1,p2) \ + (((p2)->x - (p1)->x) * ((p2)->x - (p1)->x) + \ + ((p2)->y - (p1)->y) * ((p2)->y - (p1)->y) + \ + ((p2)->z - (p1)->z) * ((p2)->z - (p1)->z)) +#endif |