tresjs
Use when building 3D scenes with TresJS (Vue Three.js) - provides TresCanvas, composables (useTres, useLoop), Cientos helpers (OrbitControls, useGLTF, Environment), and post-processing effects
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/onmax/nuxt-skills --skill tresjs- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads tresjs automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
TresJS
Vue 3 framework for building 3D scenes with Three.js. Declarative components that wrap Three.js objects.
Packages: @tresjs/core (required), @tresjs/cientos (helpers), @tresjs/post-processing (effects)
Installation
# Core (required)
pnpm add three @tresjs/core
# Helpers - controls, loaders, materials, staging
pnpm add @tresjs/cientos
# Post-processing effects
pnpm add @tresjs/post-processing
Quick Reference
| Working on... | Load file |
|---|---|
| TresCanvas, useTres, useLoop | references/core.md |
| Controls, loaders, materials | references/cientos.md |
| Bloom, glitch, DOF effects | references/effects.md |
| Common patterns, recipes | references/cookbook.md |
Loading Files
Load based on your task:
- references/core.md - TresCanvas setup, composables, events, primitives
- references/cientos.md - OrbitControls, useGLTF, Environment, materials
- references/effects.md - EffectComposer, bloom, glitch, DOF
- references/cookbook.md - Load models, camera setup, animations
DO NOT load all files at once. Load only what's relevant.
Core Concepts
TresCanvas
Root component that creates WebGL renderer and scene:
<script setup lang="ts">
import { TresCanvas } from '@tresjs/core'
</script>
<template>
<TresCanvas shadows alpha>
<TresPerspectiveCamera :position="[5, 5, 5]" />
<TresMesh>
<TresBoxGeometry />
<TresMeshStandardMaterial color="orange" />
</TresMesh>
<TresAmbientLight :intensity="0.5" />
<TresDirectionalLight :position="[3, 3, 3]" :intensity="1" />
</TresCanvas>
</template>
Component Naming
All Three.js classes available as Vue components with Tres prefix:
THREE.PerspectiveCamera→<TresPerspectiveCamera />THREE.Mesh→<TresMesh />THREE.BoxGeometry→<TresBoxGeometry />THREE.MeshStandardMaterial→<TresMeshStandardMaterial />
Constructor arguments via :args prop:
<TresPerspectiveCamera :args="[75, 1, 0.1, 1000]" />
Reactivity
Props are reactive - changes update the 3D scene:
<script setup>
const color = ref('orange')
const position = ref([0, 0, 0])
</script>
<template>
<TresMesh :position="position">
<TresMeshStandardMaterial :color="color" />
</TresMesh>
</template>
Primitive Component
Inject existing Three.js objects directly:
<script setup>
import { useGLTF } from '@tresjs/cientos'
const { scene } = await useGLTF('/model.glb')
</script>
<template>
<primitive :object="scene" />
</template>
Available Guidance
references/core.md - TresCanvas props, useTres, useLoop, useGraph, events, performance
references/cientos.md - OrbitControls, useGLTF, useTexture, Environment, Sky, materials, shapes
references/effects.md - EffectComposer vs EffectComposerPmndrs, bloom, glitch, DOF, effect stacking
references/cookbook.md - Load 3D model, camera with controls, animation loop, post-processing
FAQ
What does the tresjs skill do?
Use when building 3D scenes with TresJS (Vue Three.js) - provides TresCanvas, composables (useTres, useLoop), Cientos helpers (OrbitControls, useGLTF, Environment), and post-processing effects
How do I install tresjs?
Run npx skills add https://github.com/onmax/nuxt-skills --skill tresjs in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/tresjs/ (personal) or .claude/skills/tresjs/ (project).
Which AI agents can use tresjs?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is tresjs safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains tresjs?
It is published by onmax in onmax/nuxt-skills. It has 1,203 recorded installs.
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