Image to Three.js Model
img2threejs/img2threejs
Rebuilds the object in a reference image as a procedural, animation-ready Three.js model written entirely in code, using staged sculpting with quality checks.
Optimizes Three.js rendering performance. An agent skill from hexianWeb/Third-Person-MC.
Install Vtj Performance
$ npx skills add hexianWeb/Third-Person-MC --skill vtj-performance -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install hexianWeb/Third-Person-MC vtj-performance --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/hexianWeb/Third-Person-MC.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agent/skills/vtj-performance .claude/skills/vtj-performance && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "vtj-performance" agent skill from https://github.com/hexianWeb/Third-Person-MC/tree/main/.agent/skills/vtj-performance into .claude/skills/vtj-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "vtj-performance", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/hexianWeb/Third-Person-MC/tree/main/.agent/skills/vtj-performanceType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add hexianWeb/Third-Person-MC --skill vtj-performance -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install hexianWeb/Third-Person-MC vtj-performance --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hexianWeb/Third-Person-MC.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agent/skills/vtj-performance .agents/skills/vtj-performance && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "vtj-performance" agent skill from https://github.com/hexianWeb/Third-Person-MC/tree/main/.agent/skills/vtj-performance into .agents/skills/vtj-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "vtj-performance", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add hexianWeb/Third-Person-MC --skill vtj-performance -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install hexianWeb/Third-Person-MC vtj-performance --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hexianWeb/Third-Person-MC.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agent/skills/vtj-performance .cursor/skills/vtj-performance && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "vtj-performance" agent skill from https://github.com/hexianWeb/Third-Person-MC/tree/main/.agent/skills/vtj-performance into .cursor/skills/vtj-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "vtj-performance", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/hexianWeb/Third-Person-MC.git --path .agent/skills/vtj-performance--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add hexianWeb/Third-Person-MC --skill vtj-performance -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install hexianWeb/Third-Person-MC vtj-performance --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hexianWeb/Third-Person-MC.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agent/skills/vtj-performance .gemini/skills/vtj-performance && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "vtj-performance" agent skill from https://github.com/hexianWeb/Third-Person-MC/tree/main/.agent/skills/vtj-performance into .gemini/skills/vtj-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "vtj-performance", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install hexianWeb/Third-Person-MC vtj-performanceInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add hexianWeb/Third-Person-MC --skill vtj-performance -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/hexianWeb/Third-Person-MC.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agent/skills/vtj-performance .github/skills/vtj-performance && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "vtj-performance" agent skill from https://github.com/hexianWeb/Third-Person-MC/tree/main/.agent/skills/vtj-performance into .github/skills/vtj-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "vtj-performance", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add hexianWeb/Third-Person-MC --skill vtj-performance -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install hexianWeb/Third-Person-MC vtj-performance --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hexianWeb/Third-Person-MC.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agent/skills/vtj-performance .opencode/skills/vtj-performance && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "vtj-performance" agent skill from https://github.com/hexianWeb/Third-Person-MC/tree/main/.agent/skills/vtj-performance into .opencode/skills/vtj-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "vtj-performance", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
vtj-performance- GitHub stars
- 194
- Token cost
- ~802 tokens
- SKILL.md length
- 140 words
- Files
- 1
- Skills in repo
- 12
- Repo updated
- First seen
- Licence
- MIT
At a glance
Optimizes Three.js rendering performance. An agent skill from hexianWeb/Third-Person-MC.
- Rendering large numbers of objects
- SKILL.md covers Overview, Quick Reference, InstancedMesh Pattern and O(1) Instance Removal, plus 5 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Optimizing frame rates
What it does
Vtj Performance is an agent skill from hexianWeb/Third-Person-MC. Optimizes Three.js rendering performance. Use when rendering large numbers of objects, optimizing frame rates, implementing streaming, or managing memory in voxel/block-based scenes.
Its SKILL.md is about 800 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Game Development, covering 3D graphics and WebGL. It works with Three.js. The repository describes itself as: Three.js web version Minecraft in browser. The licence is MIT.
When your agent uses it
- Rendering large numbers of objects
- Optimizing frame rates
- Implementing streaming
- Managing memory in voxel/block-based scenes
Example prompts
- “Use the vtj-performance skill to optimiz Three.js rendering performance. An agent skill from hexianWeb/Third-Person-MC”
- “/vtj-performance”
What it can do on your machine
Read from SKILL.md and the folder at commit 490203c. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are javascript).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Vtj Performance loads about 802 tokens when it runs. Until then it costs about 50 tokens; SKILL.md has 140 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from hexianWeb/Third-Person-MC at commit 490203c, republished under its MIT licence (© hexianWeb). 140 words, ~802 tokens.
Download SKILL.mdSave it as
.claude/skills/vtj-performance/SKILL.md (or your agent's skills folder).- name
- vtj-performance
- description
- Optimizes Three.js rendering performance. Use when rendering large numbers of objects, optimizing frame rates, implementing streaming, or managing memory in voxel/block-based scenes.
vite-threejs Performance Optimization
Overview
Performance patterns for voxel-based Three.js applications.
Key techniques:
- InstancedMesh: Batch render thousands of similar objects
- Occlusion culling: Skip hidden blocks
- Geometry sharing: Single geometry for all blocks
- Idle queue: Non-blocking chunk generation
Quick Reference
| Technique | Use When | Benefit |
|---|---|---|
| InstancedMesh | 100+ similar objects | Reduced draw calls |
| Occlusion culling | Voxel terrain | Fewer vertices processed |
| Geometry sharing | Multiple meshes same shape | Lower memory |
| Swap-and-pop | Dynamic instance removal | O(1) deletion |
| Idle queue | Background tasks | No frame drops |
InstancedMesh Pattern
const geometry = new THREE.BoxGeometry(1, 1, 1) // Shared
const material = new THREE.MeshStandardMaterial({ color: 0x888888 })
const mesh = new THREE.InstancedMesh(geometry, material, count)
mesh.instanceMatrix.setUsage(THREE.DynamicDrawUsage)
// Set instance at index
mesh.setMatrixAt(index, matrix)
mesh.instanceMatrix.needsUpdate = trueFull patterns: See references/instanced-mesh.md
O(1) Instance Removal
// Swap last instance into deleted slot
const lastIndex = mesh.count - 1
if (index < lastIndex) {
mesh.getMatrixAt(lastIndex, tempMatrix)
mesh.setMatrixAt(index, tempMatrix)
}
mesh.count--
mesh.instanceMatrix.needsUpdate = trueImplementation details: See references/swap-and-pop.md
Occlusion Culling
Skip blocks completely surrounded by other blocks:
if (isBlockObscured(x, y, z)) return // Skip rendering
renderBlock(x, y, z)Algorithm: See references/occlusion-culling.md
Idle Queue
// Schedule work without blocking main thread
idleQueue.enqueue('chunk', () => {
chunk.generateData()
}, priority)API reference: See references/idle-queue.md
Memory Management
destroy() {
// Dispose materials
if (Array.isArray(mesh.material)) {
mesh.material.forEach(m => m?.dispose())
} else {
mesh.material?.dispose()
}
// Remove from scene
scene.remove(mesh)
mesh = null
}Complete patterns: See references/memory-management.md
Common Mistakes
- ❌ Creating geometry per object
- ❌ Using
splice()for instance removal - ❌ Forgetting
needsUpdate = true - ❌ Synchronous chunk generation
Full catalog: See references/common-mistakes.md
Configuration
export const CHUNK_CONFIG = {
chunkWidth: 64, // Balance draw calls vs memory
viewDistance: 1, // 1 = 3x3 chunk grid
unloadPadding: 1, // Hysteresis for unloading
}Tuning guide: See references/configuration.md
© hexianWeb, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in .agent/skills/vtj-performance of hexianWeb/Third-Person-MC.
Open the folder on GitHubat commit 490203c
Compare with similar skills
Vtj Performance next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Vtj Performance this skillhexianWeb/Third-Person-MC | 194 | — | ~802 | Automated safety check: Pass | MIT | |
| Image to Three.js Modelimg2threejs/img2threejs | 18k | 1 repos | ~8.2k | Automated safety check: Pass | Apache-2.0 | |
| Web CloneJane-xiaoer/claude-skill-web-clone | 1k | 1 repos | ~2.7k | Automated safety check: Pass | MIT | |
| Threejs Game Directormajidmanzarpour/threejs-game-skills | 2.4k | — | ~2.2k | Automated safety check: Pass | MIT | |
| Threejs Gameplay Systemsvalkor-ai/loom | 1.2k | 1 repos | ~1.4k | Automated safety check: Pass | Apache-2.0 | |
| Threejs World Generationcalesthio/OpenMontage | 65k | — | ~2k | Automated safety check: Pass | AGPL-3.0 |
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Related
Works with
Categories
Questions about Vtj Performance
What does Vtj Performance do?
Optimizes Three.js rendering performance. An agent skill from hexianWeb/Third-Person-MC. Vtj Performance is an agent skill from hexianWeb/Third-Person-MC.js rendering performance.
When should I use Vtj Performance?
Vtj Performance fits situations like: rendering large numbers of objects; optimizing frame rates; implementing streaming; managing memory in voxel/block-based scenes.
How do I install Vtj Performance in Claude Code?
Run `npx skills add hexianWeb/Third-Person-MC --skill vtj-performance -a claude-code`. Or copy the skill folder (.agent/skills/vtj-performance in hexianWeb/Third-Person-MC) into .claude/skills/vtj-performance in your project. Claude Code loads it when a task matches its description.
How do I install Vtj Performance in Codex?
Run `npx skills add hexianWeb/Third-Person-MC --skill vtj-performance -a codex`. Or copy the skill folder (.agent/skills/vtj-performance in hexianWeb/Third-Person-MC) into .agents/skills/vtj-performance in your project. Codex loads it when a task matches its description.
Can I use Vtj Performance in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add hexianWeb/Third-Person-MC --skill vtj-performance -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/vtj-performance, .gemini/skills/vtj-performance, .github/skills/vtj-performance and .opencode/skills/vtj-performance in your project.
What does Vtj Performance need to run?
SKILL.md names no scripts, command-line tools or credentials: Vtj Performance is instructions for the agent only.
Does Vtj Performance access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Vtj Performance safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Vtj Performance use?
Vtj Performance is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Vtj Performance use?
About 802 tokens (SKILL.md is roughly 3.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Vtj Performance?
Skills that share tags, products or a category with Vtj Performance: Image to Three.js Model (img2threejs/img2threejs, 18k stars), Web Clone (Jane-xiaoer/claude-skill-web-clone, 1k stars), Threejs Game Director (majidmanzarpour/threejs-game-skills, 2.4k stars) and Threejs Gameplay Systems (valkor-ai/loom, 1.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Vtj Performance?
hexianWeb (a GitHub user) maintains it in hexianWeb/Third-Person-MC, which has 194 GitHub stars. The repository holds 12 skills in this directory. The repository was last updated on July 27, 2026.
Source: hexianWeb/Third-Person-MC on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.