Mobile

Mobile Optimization

GPU Architecture

Mobile GPUs use tile-based rendering (TBDR). Key implications:

• Overdraw is expensive — minimize transparent layers
• Alpha-tested geometry is costly (breaks early-Z)
• Keep fragment shader complexity low
• Avoid full-screen post-processing when possible

Performance Budgets

| Metric | Low-End | Mid-Range | High-End | |--------|---------|-----------|----------| | Draw calls | WarningLevel.NoWarning) { // Reduce quality: lower resolution, reduce particles, cap framerate QualitySettings.resolutionScalingFixedDPIFactor = 0.75f; } }

- Target 30fps for casual games (saves battery)
- Offer 60fps as opt-in option
- Reduce GPU load when battery  threshold in one direction
- Pinch: two-finger distance change
- Long press: hold > 0.5s
- Drag: press + move

## Safe Area

```csharp
private void ApplySafeArea()
{
    Rect safeArea = Screen.safeArea;
    Vector2 anchorMin = safeArea.position;
    Vector2 anchorMax = safeArea.position + safeArea.size;

    anchorMin.x /= Screen.width;
    anchorMin.y /= Screen.height;
    anchorMax.x /= Screen.width;
    anchorMax.y /= Screen.height;

    RectTransform rect = GetComponent();
    rect.anchorMin = anchorMin;
    rect.anchorMax = anchorMax;
}

Apply to the root UI panel to respect notches and rounded corners.

Audio Compression

| Type | Format | Quality | Load Type | |------|--------|---------|-----------| | Music | Vorbis | 40-60% | Streaming | | SFX (short) | ADPCM | — | Decompress On Load | | SFX (long) | Vorbis | 70% | Compressed In Memory | | UI clicks | PCM | — | Decompress On Load |

Build Size

• Strip unused code (IL2CPP stripping: High)
• Compress textures aggressively
• Use Addressables for optional/DLC content
• Remove unused packages from manifest
• Target < 100MB for initial download (App Store recommendation)

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: XeldarAlz
• Source: XeldarAlz/everything-claude-unity
• License: MIT
• Homepage: https://github.com/XeldarAlz/everything-claude-unity#readme

Install and usage instructions live in the source repository linked above.