Rpg Maker Developers Group

Original Source

• Original title: MV Swag Interactive Shader Fog
• Original author: SwagTopus
• Original date: March 13, 2026
• Source thread: https://forums.rpgmakerweb.com/threads/swag-interactive-shader-fog.182849/
• Source forum path: Game Development Engines > RPG Maker Javascript Plugins > JS Plugin Releases (RMMV)

Summary

Swag Interactive Shader Fog Author: Swagtopus Engine: RPG Maker MV (MZ version is currently in the forge and coming soon!) Introduction

Archived First Post

Swag Interactive Shader Fog
Author: Swagtopus
Engine: RPG Maker MV (MZ version is currently in the forge and coming soon!)

Introduction
Stop using flat, boring PNG pictures for your weather. Bring your maps to life with real-time, GPU-powered shader magic!

This plugin adds volumetric, dynamic GLSL fog that actually reacts to your game. When your player runs, they literally carve a path through the mist, leaving a swirling, aerodynamic wake behind them that slowly heals over time. It brings next-gen atmosphere to your project without melting your players' PCs.

️ Features

• Zero Lag, All Swag: Instead of stacking massive transparent images or spawning CPU-killing particles, this plugin uses a single highly optimized PIXI.js GLSL Shader. We offload all the complex math to the Graphics Card (GPU) for buttery smooth 60 FPS.Interactive Wake Geometry: The fog realistically parts around the player. Walk slowly for a small hole, sprint to create massive turbulent wind trails!25+ Instant Presets: Swamp, Snow, Magic, Poison, Lava, Dreamscape... just type one word and the plugin mathematically generates the perfect colors, density, and physics.Multi-Region Control: Lock the fog to specific map tiles (e.g., only Region 5). Perfect for creating deadly patches of poison gas or localized glowing holy fields.
• Event Clearing: Give torches, campfires, or glowing crystals the power to push away the darkness using simple notetags.

How to Use
Setup is dead simple!

1. 
   []Place Swag_InteractiveShaderFog.js into your js/plugins folder and enable it in the Plugin Manager.
   []To activate a creepy swamp fog locked to region 3, just put this script call in a Parallel event:

Code:

Swag.ISF.preset('swamp', 3);

Event Notetags:
Make any event emit a fog-clearing aura by typing this into its Note box:

Code:

<FogClear>

Want a massive clearing radius? Specify the pixels like this:

Code:

FogClear:150

Compatibility & Bug Reports
This plugin does some heavy math. If you find a glitch, performance drop, or compatibility issue, PLEASE DROP A COMMENT BELOW or hit me up on X (Twitter). We crush bugs for breakfast! Terms of Use

• 
  []Free for use in non-commercial and commercial projects.
  []Credit is required (Credit: Swagtopus).
• You may edit the plugin for your own project, but do not claim it as your own or redistribute the edited code as a new plugin.

DownloadDownload Swag Interactive Shader Fog on Itch.io

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Feedback is highly appreciated!
Commissions & 3D stuff: @Swag_Topus

Downloads / Referenced Files

License / Terms Note

This plugin does some heavy math. If you find a glitch, performance drop, or compatibility issue, PLEASE DROP A COMMENT BELOW or hit me up on X (Twitter). We crush bugs for breakfast! Terms of Use []Free for use in non-commercial and commercial projects. []Credit is required (Credit: Swagtopus). You may edit the plugin for your own project, but do not claim it as your own or redistribute the edited code as a new plugin.