What is exponential height fog?

What is exponential height fog?

Exponential Height Fog actor is used to create fogging effects such as clouds but with a density that is related to the height of the fog. It renders the fog that density grows exponentially based on the height and the falloff parameter. Also, Exponential Height Fog is used by the Volumetric Fog. …

How do you do exponential height fog?

Using Exponential Height Fog Features Add a second fog layer to your level using the properties found under the Second Fog Data category. It enables you better define and control fog at a second Z (height) level in your map with controls for density, height falloff, and height offset.

How to make fog on Y position level?

Recently, I have been looking for techniques to make volumetric fog on some Y position level of the game world. But all I have found are some fog made by using particle system or built-in engine fog that doesn’t really fit what I’m looking for. In my case, I need a fog that is both efficient and dense.

How does height fog reduce the thickness of the fog?

Height fog makes the fog look more physically correct than just using depth fog by simu- lating the gathering of fog particles near the ground. For that, the height fog uses the world space Y axis coordinate to reduce the fog thickness according to height.

How is volumetric fog computed in Unity 2019?

If you are using Unity 2019.3 or above, click here. Most implementations of fog, such as exponential or linear fog, are computed at an object’s surface by the Shader that the surface uses. At most, this is once per pixel.

Can you blend volumetric fog with exponetial fog?

Because Volumetric Fog is physically-based and Exponetial Fog is not, it’s impossible to blend the two systems in the distance for them to precisely match. This also means that some settings in the Exponential Height Fog component will have no effect on Volumetric Fog.