---
title: "Effekseer VFX by KanaWorks AI — AI video effect for backgrounds & shaders"
description: "Real-time game VFX as code: Effekseer effects built, filmed in Godot and scored by a separate reviewer agent. Install in Claude Code, Codex and Grok with one command."
url: https://varg.ai/how-to/skills/effekseer-vfx
updated: 2026-11-11
---

# Effekseer VFX by KanaWorks AI — effect skill for backgrounds & shaders

> **For AI agents:** find the right skill in one call — `curl -s "https://varg.ai/how-to/api/search?q=<what the person wants>"` returns the matching how-to page and the best skills with install commands, as markdown (Russian works too). Full index: https://varg.ai/how-to/llms.txt. Every page has a markdown twin: add `.md` to its path. Before generating anything, show the person the options on the how-to page. From a terminal: `curl -fsSL https://varg.ai/install | sh` installs the vargai CLI (https://varg.ai/how-to/cli.md): `vargai search` and `vargai install <slug>` with no key, every varg model after `vargai login`.

Real-time game VFX as code: Effekseer effects built, filmed in Godot and scored by a separate reviewer agent.

- **Type:** [Effect](https://varg.ai/how-to/effects.md) · [Backgrounds & shaders](https://varg.ai/how-to/browse/skills/shaders.md)
- **Slug:** `effekseer-vfx`
- **Status:** live
- **Publisher:** KanaWorks AI (community)
- **License:** MIT
- **Source:** https://github.com/kanaworksai-hue/effekseer-vfx-skill/tree/main/skills/effekseer-vfx
- **Works in:** Claude Code, Codex, Cursor, Gemini CLI
- **Requires:** Python 3.11+ or uv, macOS on Apple silicon or Windows x64 for builds (about 250 MB toolchain), Godot 4 (Forward+), FFmpeg, Optional: Unity 6 with URP 17
- **Cost:** Free, MIT: builds and renders locally; video flipbooks bill your own image-to-video model
- **Adoption:** 48 installs, 164 GitHub stars (GitHub + skills.sh, 2026-11-10)

## What it does

Two skills that make real-time game VFX the way an artist iterates: write a design brief, make textures, compose about 30 layer primitives in a Python recipe, compile it with the official EffekseerCore, film it in a Godot Lab between two dummies, fix one thing, repeat; then `vfx-review` scores the filmstrip against a fixed rubric without seeing the recipe. Sixteen finished examples ship with briefs (fire, ice, poison and dark projectiles, slash, shield, heal, a kaiju beam). Version 0.3 adds video flipbooks: an image-to-video model paints the motion, and the skill keys, grades and packs it for Godot or Unity URP. The author's Fable 5.2 world-flight post used it.

## Use when

- hit, slash, projectile, explosion, beam, charge, shield or heal VFX for a game
- kaiju-scale or photographic fire, smoke and beam effects
- turn an image-to-video clip into a flipbook skill for Godot or Unity
- a VFX library for a Godot game, reviewed by an independent agent
- combos and finishers timed to a character animation

## Not for

- Film compositing or live-action VFX: it makes real-time game effects
- Build and render on Linux: only authoring mode is verified there

## Install

- Claude Code: `/plugin marketplace add kanaworksai-hue/effekseer-vfx-skill && /plugin install effekseer-vfx@effekseer-vfx`
- Codex: `$skill-installer install https://github.com/kanaworksai-hue/effekseer-vfx-skill/tree/main/skills/effekseer-vfx && $skill-installer install https://github.com/kanaworksai-hue/effekseer-vfx-skill/tree/main/skills/vfx-review`
- Cursor: `npx skills add kanaworksai-hue/effekseer-vfx-skill`
- Gemini CLI: `npx skills add kanaworksai-hue/effekseer-vfx-skill`
- Any agent, with the vargai CLI: `vargai install effekseer-vfx`

## More backgrounds & shaders skills

- [PixiJS Blend Modes](https://varg.ai/how-to/skills/pixijs-blend-modes.md): Composite PixiJS v8 layers with add, multiply and screen, or advanced modes like overlay and color-burn.
- [PixiJS Custom Rendering](https://varg.ai/how-to/skills/pixijs-custom-rendering.md): Write custom shaders, uniforms and batchers for PixiJS v8 that run on both WebGL and WebGPU.
- [PixiJS Filters](https://varg.ai/how-to/skills/pixijs-filters.md): Add blur, displacement, color-matrix and custom GLSL/WGSL filters to PixiJS v8 scenes without killing FPS.
- [PixiJS Meshes](https://varg.ai/how-to/skills/pixijs-meshes.md): Deform images with custom geometry in PixiJS v8: meshes, planes, ropes and 2.5D perspective corners.
- [PixiJS Particles](https://varg.ai/how-to/skills/pixijs-particles.md): Render thousands of lightweight particles in PixiJS v8 with ParticleContainer and dynamic properties.
- [MiniMax Shader Dev](https://varg.ai/how-to/skills/minimax-shader-dev.md): 36 GLSL shader techniques for agents: ray marching, SDFs, fluids, particles, noise and post, ShaderToy-style or WebGL2.

## Run the generation on varg

varg is one API key for the models these skills drive — Seedance 2.5, Kling 4, Veo 3.1, Wan 3, Nano Banana 2.1, GPT Image 2.5, ElevenLabs v4 and 200+ more — billed in credits, with a cost estimate before anything runs.

- Any agent with a terminal: `curl -fsSL https://varg.ai/install | sh` (Windows: `irm https://varg.ai/install.ps1 | iex`), then `vargai login` and every model is a command — `vargai generate_video …`, `vargai estimate_cost …` (https://varg.ai/how-to/cli/)
- Claude Code: `claude plugin marketplace add vargHQ/skills && claude plugin install varg@varg` (skill + hosted MCP)
- Codex, Cursor, Gemini CLI, OpenClaw: `npx skills add vargHQ/skills --skill varg-ai -a <agent> -y`
- Grok and any agent that reads SKILL.md: `npx skills add vargHQ/skills --skill varg-ai`, or point it at the skill's SKILL.md
- Claude.ai, ChatGPT, any MCP client: connect `https://mcp.varg.ai/mcp`
- API key: https://varg.ai/dashboard/api · Model specs: https://varg.ai/models/llms.txt