Board Thread:Game Discussion/@comment-27095714-20170310044406/@comment-26829117-20170715084519

It's not about effort, it's about capability. Weather is actually quite hard to do graphics wise. If I remember correctly (it's been a long time since I did any serious graphics development) fog is a standard feature of graphics engines these days. Rain/snow is difficult to do well. The other thing that gets mentioned here a lot is that RR3 has to work on a wide range of platforms and the older devices will have less capable graphics cards.