[Skyline]

Features:

• Automatic mesh simplification (Windows + Unity Pro only)[list:5d7e76b1a6]
  
• Generate meshes with reduced polygon count automatically
  

Level-of-detail editor

• Easily create LOD prefabs that change quality levels or that disappear at a certain distance
  
• Build your LOD scene[list:5d7e76b1a6]
  
• Easily replace existing prefabs with LOD prefabs for converting your scene to a LOD-managed one
  
• Group objects together into a single mesh and texture to reduce draw calls
  
• Save scene as standard assets or asset bundles
  

Scene manager

• Streaming support[list:5d7e76b1a6]
  
• Stream your scene as the player moves through the world
  
• Resources are automatically loaded/unloaded
  
• Stream from resource folder, or asset bundles
  
• Minimal performance impact with resource buffering
  
• Adjustable for your needs, speed or memory
  

Takes care of switching quality levels as the player moves though the world

• Fully optimized, uses minimal resources
  

Resource manager

• Standardized loading for both asset bundles and normal resources
  
• Keeps reference counts on your resources and frees them automatically
  

Fully integrated into Unity using UnityEditor API

• No coding required
  

Editors



+ few others

In action
Lots of objects demo (Old video, new one coming in a few days, it does a much better job now)
Streaming demo
In-game demo

All the demo videos except the first one are running on Running on Vista x64, E6600 at 2.4Ghz, 295GTX and 2GB RAM. (The first video is running on 8800GTX, rest is the same).

Video tutorials
UniLOD Tutorial 1 - Installation
UniLOD Tutorial 2 - Mesh simplification
UniLOD Tutorial 3 - LOD prefab creation
UniLOD Tutorial 4 - LOD scene editing
UniLOD Tutorial 5 - Scene loading

Download
Win + Unity Pro
Mac + Unity Pro
Mac/Win + Unity Indie

Other notes
This is the first released version of UniLOD, I hope you can report all found bugs to me. Personally I have never even tested the Mac version but it is available here anyway. It is very doubtful it will work at this time, but I do plan on fixing it in the future (Feel free to give it a shot, it might just work). Testers have also reported errors with mesh simplification in the Win Pro version, most likely related to .dll dependencies, and although I'm quite sure I removed all of them it still won't work for some people, so I hope to hear from you on this issue. Also make sure you have newest DirectX and VC++ runtimes if installing the Win Pro version.

Cheers!

UPDATE
UniLOD is now open-source and free for personal and commerical use. You may download the source from here.

Fonte:
forum.unity3d.com/threads/42524-UniLOD-BETA-Level-of-detail-and-streaming-support-UPDATE