When are structs the answer?

Question

I\'m doing a raytracer hobby project, and originally I was using structs for my Vector and Ray objects, and I thought a raytracer was the perfect situation to use them: you

Answer 1

Basically, don't make them too big, and pass them around by ref when you can. I discovered this the exact same way... By changing my Vector and Ray classes to structs.

With more memory being passed around, it's bound to cause cache thrashing.