Optimization Guide

The Optimization Guide teaches you how to keep your VR fangame running smoothly on standalone hardware like Quest devices.
Optimization is not optional — VR requires high, stable framerates to prevent lag, motion sickness, and multiplayer desync.

This section explains how to optimize performance across maps, scripts, physics, lighting, assets, and multiplayer systems.

1. Why Optimization Matters in VR

VR is more demanding than flat‑screen games because:

• The game renders twice (one per eye)

• The headset must maintain 72–90 FPS

• Movement is physics‑heavy

• Multiplayer adds network overhead

• Standalone devices have limited GPU/CPU

Poor optimization causes:

• Lag

• Stuttering

• Jittery hands

• Delayed movement

• Multiplayer desync

• Motion sickness

A well‑optimized game feels smooth, responsive, and professional.

2. What This Section Covers

The Optimization Guide includes:

1. Performance Fundamentals

How VR rendering works and what affects framerate.

2. Mesh & Geometry Optimization

How to build low‑poly, efficient environments.

3. Collider Optimization

How to use the right colliders to reduce physics cost.

4. Lighting Optimization

How to use baked lighting, simple shadows, and low‑cost effects.

5. Script Optimization

How to write efficient code and avoid expensive operations.

6. Physics Optimization

How to tune rigidbodies, colliders, and movement systems.

7. Asset Optimization

How to compress textures, reduce draw calls, and manage materials.

8. Multiplayer Optimization

How to reduce network load and avoid unnecessary syncing.

Each subpage will break down the exact techniques.

3. Core Optimization Principles

A. Keep it simple

VR thrives on clean, readable environments.

B. Low‑poly everything

Geometry should be optimized from the start.

C. Avoid expensive physics

Use primitive colliders whenever possible.

D. Minimize draw calls

Fewer materials = better performance.

E. Bake lighting

Real‑time lighting is expensive on standalone VR.

F. Sync only what’s necessary

Photon bandwidth is limited — don’t waste it.

G. Profile constantly

Use Unity’s profiler early and often

4. Optimization Guide Subpages

This section contains several detailed subpages:

1. Performance Fundamentals

Understanding framerate, GPU vs CPU bottlenecks, and VR rendering.

2. Mesh & Geometry Optimization

Low‑poly modeling, LODs, and reducing triangles.

3. Collider Optimization

Choosing the right colliders and avoiding mesh colliders.

4. Lighting Optimization

Baked lighting, lightmaps, and low‑cost shadows.

5. Script Optimization

Efficient Update loops, caching references, and avoiding garbage allocation.

6. Physics Optimization

Rigidbody settings, collision layers, and physics cost reduction.

7. Asset Optimization

Texture compression, material merging, and audio optimization.

8. Multiplayer Optimization

Reducing network load, optimizing send rates, and avoiding unnecessary syncing.

Each subpage will be written cleanly and professionally when you’re ready.

5. Best Practices

• Build low‑poly maps

• Use primitive colliders

• Bake lighting whenever possible

• Avoid heavy shaders

• Keep scripts lightweight

• Reduce Update calls

• Use object pooling

• Sync only head + hands

• Profile on actual hardware

• Test with multiple players