In this project, I had to use shaders more than any other project. I had to adjust existing code to seamlessly transfer between sunny, rainy, and snowy, with my custom environment around it. I also used terrain tools for this, building the mountains myself so they could be compatible with the weather system. I also added dynamic clouds, rain particles, and the same dynamic water from the fishing project. I also made color grading, after effects, and particles. It was very visually challenging but very fun.
This was made in 1 week. if I were to return to it, I might change the gameplay entirely to suit the weather changing mechanic more.