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Run npx skillmds add majiayu000/optimization-techniques-2 in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

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Is Optimization Techniques free to use?

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Who published Optimization Techniques?

majiayu000 (@majiayu000) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Optimization Techniques by majiayu000

Name: Optimization Techniques
Rating: 4.2 (5 reviews)
Author: majiayu000

Optimization Techniques

This skill provides optimization methods for Nethercore ZX games. Use when the user asks about "optimize", "compress", "reduce size", "wasm-opt", "BC7", "LTO", "asset compression", "mesh optimization", "texture compression", or "state size". **Load references when:** - Detailed code examples → `references/code-examples.md`

majiayu000 c5c460b 2 files · 2.3 KB Updated Sep 9, 2026 567 repo stars

File contents

Optimization Techniques for Nethercore ZX

WASM Optimization

Cargo.toml Settings

[profile.release]
lto = true           # Link-time optimization
opt-level = "z"      # Optimize for size
codegen-units = 1    # Better optimization
panic = "abort"      # Smaller than unwind
strip = true         # Strip symbols

Post-Build

wasm-opt -Oz game.wasm -o game.wasm

Typical savings: 20-40%

Texture Optimization

All textures use BC7 compression (4:1 ratio):

Original	Compressed
256×256 RGBA (256 KB)	64 KB
512×512 RGBA (1 MB)	256 KB

Resolution targets:

UI elements: 256×256
Characters: 256-512
Environment: 128-256

Mesh Optimization

Format	Size/Vertex
Position only	12 bytes
Pos + UV	20 bytes
Pos + UV + Normal	32 bytes
Full	40 bytes

Poly targets:

Background props: 50-200
Interactive props: 100-500
Characters: 500-2000

Audio Optimization

Sample rate: 22050 Hz (engine limit)
Channels: Mono only
Use XM modules for music (95% savings vs WAV)

State Size Reduction

// Use compact types
struct Position { x: f32, y: f32 }  // 8 bytes
struct Position { x: i16, y: i16 }  // 4 bytes (fixed-point)

// Fixed arrays, not Vec
entities: [Entity; 64],  // Known size

Quick Wins Checklist

LTO and opt-level = "z" in Cargo.toml
wasm-opt -Oz on final binary
Texture resolutions at 256×256 default
Music as XM format
Fixed arrays instead of Vec

---name: optimization-techniques-2description: This skill provides optimization methods for Nethercore ZX games. Use when the user asks about "optimize", "compress", "reduce size", "wasm-opt", "BC7", "LTO", "asset compression", "mesh optimization", "texture compression", or "state size". **Load references when:** - Detailed code examples → `references/code-examples.md`--- # Optimization Techniques for Nethercore ZX ## WASM Optimization ### Cargo.toml Settings ```toml [profile.release] lto = true # Link-time optimization opt-level = "z" # Optimize for size codegen-units = 1 # Better optimization panic = "abort" # Smaller than unwind strip = true # Strip symbols ``` ### Post-Build ```bash wasm-opt -Oz game.wasm -o game.wasm ``` **Typical savings:** 20-40% ## Texture Optimization All textures use BC7 compression (4:1 ratio): | Original | Compressed | |----------|------------| | 256×256 RGBA (256 KB) | 64 KB | | 512×512 RGBA (1 MB) | 256 KB | **Resolution targets:** - UI elements: 256×256 - Characters: 256-512 - Environment: 128-256 ## Mesh Optimization | Format | Size/Vertex | |--------|-------------| | Position only | 12 bytes | | Pos + UV | 20 bytes | | Pos + UV + Normal | 32 bytes | | Full | 40 bytes | **Poly targets:** - Background props: 50-200 - Interactive props: 100-500 - Characters: 500-2000 ## Audio Optimization - Sample rate: 22050 Hz (engine limit) - Channels: Mono only - Use XM modules for music (95% savings vs WAV) ## State Size Reduction ```rust // Use compact types struct Position { x: f32, y: f32 } // 8 bytes struct Position { x: i16, y: i16 } // 4 bytes (fixed-point) // Fixed arrays, not Vec entities: [Entity; 64], // Known size ``` ## Quick Wins Checklist - [ ] LTO and opt-level = "z" in Cargo.toml - [ ] wasm-opt -Oz on final binary - [ ] Texture resolutions at 256×256 default - [ ] Music as XM format - [ ] Fixed arrays instead of Vec

Frequently asked questions