Asset Optimization
Asset Pipeline Overview
┌─────────────────────────────────────────────────────────────┐
│ ASSET PIPELINE FLOW │
├─────────────────────────────────────────────────────────────┤
│ SOURCE ASSETS (Large, Editable): │
│ .psd, .fbx, .blend, .wav, .tga │
│ ↓ │
│ IMPORT SETTINGS: │
│ Compression, Format, Quality, Platform overrides │
│ ↓ │
│ PROCESSING: │
│ Compression, Mipmaps, LOD generation, Format conversion │
│ ↓ │
│ RUNTIME ASSETS (Optimized): │
│ .dds, .ktx, .ogg, engine-specific formats │
│ ↓ │
│ PACKAGING: │
│ Asset bundles, streaming chunks, platform builds │
└─────────────────────────────────────────────────────────────┘Texture Optimization
TEXTURE COMPRESSION FORMATS:
┌─────────────────────────────────────────────────────────────┐
│ PLATFORM │ FORMAT │ QUALITY │ SIZE/PIXEL │
├─────────────┼─────────────┼──────────┼────────────────────┤
│ PC/Console │ BC7 │ Best │ 1 byte │
│ PC/Console │ BC1 (DXT1) │ Good │ 0.5 byte │
│ iOS │ ASTC 6x6 │ Great │ 0.89 byte │
│ Android │ ETC2 │ Good │ 0.5-1 byte │
│ Mobile │ ASTC 8x8 │ Good │ 0.5 byte │
│ Uncompressed│ RGBA32 │ Perfect │ 4 bytes │
└─────────────┴─────────────┴──────────┴────────────────────┘
TEXTURE SIZE GUIDELINES:
┌─────────────────────────────────────────────────────────────┐
│ Character (main): 2048x2048 │
│ Character (NPC): 1024x1024 │
│ Props (large): 1024x1024 │
│ Props (small): 512x512 or 256x256 │
│ UI elements: Power of 2, vary by size │
│ Environment: 2048x2048 (tiling) │
│ Mobile maximum: 1024x1024 (prefer 512) │
└─────────────────────────────────────────────────────────────┘Mesh Optimization
POLYGON BUDGET GUIDELINES:
┌─────────────────────────────────────────────────────────────┐
│ PLATFORM │ HERO CHAR │ NPC │ PROP │ SCENE │
├─────────────┼───────────┼──────────┼──────────┼───────────┤
│ PC High │ 100K │ 30K │ 10K │ 10M │
│ PC Med │ 50K │ 15K │ 5K │ 5M │
│ Console │ 80K │ 25K │ 8K │ 8M │
│ Mobile │ 10K │ 3K │ 500 │ 500K │
│ VR │ 30K │ 10K │ 2K │ 2M │
└─────────────┴───────────┴──────────┴──────────┴───────────┘
LOD CONFIGURATION:
┌─────────────────────────────────────────────────────────────┐
│ LOD0: 100% triangles │ 0-10m │ Full detail │
│ LOD1: 50% triangles │ 10-30m │ Reduced │
│ LOD2: 25% triangles │ 30-60m │ Low detail │
│ LOD3: 10% triangles │ 60m+ │ Billboard/Impostor │
└─────────────────────────────────────────────────────────────┘Audio Optimization
AUDIO COMPRESSION:
┌─────────────────────────────────────────────────────────────┐
│ TYPE │ FORMAT │ QUALITY │ STREAMING │
├─────────────┼─────────┼───────────┼──────────────────────┤
│ Music │ Vorbis │ 128-192 │ Always stream │
│ SFX (short) │ ADPCM │ High │ Decompress on load │
│ SFX (long) │ Vorbis │ 128 │ Stream if > 1MB │
│ Voice │ Vorbis │ 96-128 │ Stream │
│ Ambient │ Vorbis │ 96 │ Stream │
└─────────────┴─────────┴───────────┴──────────────────────┘
AUDIO MEMORY BUDGET:
• Mobile: 20-50 MB
• Console: 100-200 MB
• PC: 200-500 MBBatch Processing Script
# ✅ Production-Ready: Asset Batch Processor
import subprocess
from pathlib import Path
from concurrent.futures import ThreadPoolExecutor
def process_textures(input_dir: Path, output_dir: Path, platform: str):
"""Batch process textures for target platform."""
settings = {
'pc': {'format': 'bc7', 'max_size': 4096},
'mobile': {'format': 'astc', 'max_size': 1024},
'console': {'format': 'bc7', 'max_size': 2048},
}
config = settings.get(platform, settings['pc'])
textures = list(input_dir.glob('**/*.png')) + list(input_dir.glob('**/*.tga'))
def process_single(texture: Path):
output_path = output_dir / texture.relative_to(input_dir)
output_path = output_path.with_suffix('.dds')
output_path.parent.mkdir(parents=True, exist_ok=True)
subprocess.run([
'texconv',
'-f', config['format'],
'-w', str(config['max_size']),
'-h', str(config['max_size']),
'-m', '0', # Generate all mipmaps
'-o', str(output_path.parent),
str(texture)
])
with ThreadPoolExecutor(max_workers=8) as executor:
executor.map(process_single, textures)🔧 Troubleshooting
┌─────────────────────────────────────────────────────────────┐
│ PROBLEM: Build size too large │
├─────────────────────────────────────────────────────────────┤
│ SOLUTIONS: │
│ → Audit unused assets │
│ → Increase texture compression │
│ → Enable mesh compression │
│ → Split into downloadable content │
│ → Use texture atlases │
└─────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────┐
│ PROBLEM: Long import times │
├─────────────────────────────────────────────────────────────┤
│ SOLUTIONS: │
│ → Use asset database caching │
│ → Import in batches │
│ → Use faster SSD storage │
│ → Pre-process assets in CI/CD │
└─────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────┐
│ PROBLEM: Assets look blurry │
├─────────────────────────────────────────────────────────────┤
│ SOLUTIONS: │
│ → Reduce compression for important assets │
│ → Increase texture resolution │
│ → Check mipmap settings │
│ → Use appropriate filtering mode │
└─────────────────────────────────────────────────────────────┘Memory Budgets
| Platform | Textures | Meshes | Audio | Total |
|---|---|---|---|---|
| Mobile Low | 100 MB | 50 MB | 30 MB | 200 MB |
| Mobile High | 500 MB | 200 MB | 100 MB | 1 GB |
| Console | 2 GB | 1 GB | 200 MB | 4 GB |
| PC | 4 GB | 2 GB | 500 MB | 8 GB |
Use this skill: When optimizing assets, managing memory, or streamlining pipelines.