Here is a selection of work I have completed in the past few years both personally and professionally. 

The Terrain generation project below was completed in Unity3D using C#. All projects following (fire, terrain effects, northern lights), are visual effect / programming assets available for sale on my Unity3D Asset store page

https://assetstore.unity.com/publishers/241

Fire pack, available on the Unity Asset Store. Built within Unity3D. 

https://assetstore.unity.com/packages/vfx/particles/fire-explosions/ian-s-fire-pack-69661

Terrain Effect Solution. A solution to adding visual effects to terrains. The package manages automatic placing of leaves, bugs, and other effects on different textures, trees and detail objects.

Northern Lights Pack on the Unity Asset Store