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