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Fog Wall VFX

Description​

Fog Wall VFX with full Blueprint customization for colors, light, materials, meshes, and smoke parameters. The wall can also be toggled via a blueprint event.

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Documentation​

This documentation describes the VFX customization process.

The folder SoulslikeFogWallVFX\Blueprints contains BP_FogWall. It is the base Blueprint which holds all the components of the effect.

Fog Wall VFX Blueprint preview

You can adjust the parameters in the class defaults by pressing the corresponding button at the top and use this blueprint in your project.

Class Defaults button

For further customization I recommend using child blueprints. You can create a child blueprint by right clicking on BP_FogWall and selecting the corresponding item in the menu.

Create Child Blueprint Class option

Inside of the child blueprint you can find the parameters that allow you to customize the effect. They are exactly the same as in parent Blueprint, but you can make lots of different variations this way. You can even create Child BP of Child BP if you need only non-substantial adjustments.

Fog Wall child Blueprint parameters

Here you can adjust colors, light, materials, meshes, and smoke parameters.

If you want to adjust the positions of objects inside of the actor, click the blue link on top to open the full blueprint.

Open Full Blueprint Editor link

Toggle the wall​

If you start the game you will see a button at the center that toggles the wall.

Fog walls in the example level

BP_FogWall contains events that allow you to toggle the wall. How to build communication between your game and the wall blueprint fully depends on your core interaction system.

Fog Wall Blueprint events

Fog plane mesh​

Now I will show you how you can create plane mesh for the fog wall for your specific shape using Blender. This step is essential, unless you are using just a square.

First step. Create a plane and shape it to suit your needs.

Shaping the fog wall plane in Blender

Then enable the front view by pressing 1 on Numpad or just use gismo in the top right corner.

Front view of the fog wall plane

In the edit mode press A to select all faces and press U. Select Project From View option.

Project From View in Blender

Go to the UV editing tab at the top and adjust the UV to best fit the texture.

Fog wall UV in Blender
Adjusted fog wall UV

Make sure that the UV goes from top to bottom just like your mesh geometry or the fog will flow in the wrong direction.

After you have done this you can import your mesh into UE and put it inside of the fog wall child blueprint.

Wall Mesh parameter

If you don't need Gate Mesh​

If you don't need the gate mesh and just want the plain wall then clear the gate input and they will be gone.

Clear the Gate Mesh input

Supported Unreal Engine Versions​

Unreal Engine5.05.15.25.35.45.55.65.75.8
Product versionv1.0v1.0v1.0v1.0v1.0v1.0v1.0v1.0v1.0

Changelog​

v1.0​

  • Initial release

Documentation image