Canvas FX is a lightweight visual effects module designed exclusively for Foundry VTT v14. It allows Game Masters to trigger cinematic screen effects—like rain, shakes, flashes, and filters—that appear above the UI and synchronize instantly for all connected players.

This module operates via Script Macros.

To trigger effects during your game, you will need to create simple script macros. Don't worry if you don't know code—the documentation provides copy-and-paste examples for everything.

Before writing your macros, you can use these internal tools to preview effects and understand how they look:

• CanvasFX.Builder() Opens a visual interface where you can tweak settings, play effects immediately, and automatically create macros with one click.
• CanvasFX.Demo() Opens a gallery of pre-configured examples to show you what is possible.

Builder — tweak settings, play, and generate a macro	Demo — gallery of ready-made examples

Once you have chosen an effect, refer to the Wiki. It contains the exact code snippets you need to copy into your macros to replicate the features listed below.

👉 Read the Wiki & API Reference

By using the simple commands found in the Wiki, you can create:

• 🌧️ Particles: Rain emojis (🔥, ❄️, 💰), text, or custom images.
• 💥 Impact: Screen shakes, glass shattering simulations, and bright flashes (lightning/explosions).
• 🎬 Cinematics: Cinematic "Letterbox" bars, theater curtains, slideshows, or full-screen image/video covers.
• 🎨 Filters: Full-screen effects like Blur, Night Vision, Black & White, Vignette, or Color Tints.
• 📢 Alerts: Giant animated text overlays (Pulse/Shake), pulsing screen borders (Low Health), or dramatic countdowns.
• 🔄 Motion: Screen spinning or pulsating (heartbeat effect).
• 🚀 Sci-Fi: A 3D holographic "Level Up" HUD (Three.js) where the text erupts into particles once fully formed, with a solid black backdrop by default (transparent mode also available).
• 🔊 Audio: Automatic sound synchronization with visual triggers.