Creating Particle Fog In Unity HDRP

Following yesterday’s post, I am creating some fog in my scene using Particle Systems, for atmospheric effect.

Today’s Objective: Create fog using the Particle System to add some atmospheric ambience to the sci-fi scene.

Particle System Fog:

To create a Particle System, right-click in the Hierarchy and select “Effects/Particle System”.

Next is to set up the Particle System to act like fog. Depending on the project, this can involve a lot of tweaking of the variables.

For this guide, I will just show how to set the shape, texture, and movement.

Since the smoke/fog texture is a spritesheet (a texture containing multiple slightly different images, combining to form an animation), I need to enable the Texture Sheet Animation module.

Note: The material shader I am using is from the Legacy section and is becoming outdated/replaced, but it works for now:

Increase emission rate, and decrease speed and lifetime. Set the Simulation Space to “World” if the Particle System will be moving (mine won’t, but I prefer setting it for good measure).

The Result:

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Vincent Taylor

Vincent Taylor

Unity game developer / C# Programmer / Gamer. Australian (Tasmanian) indie games developer for 10+ years. Currently looking for games industry employment.