Simple LOD Manager

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Revision as of 12:43, 27 April 2010 by Tom (Talk | contribs)

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Author: Tom Vogt


A simple script to automatically switch between LODs of a model based on distance to the active camera.


<javascript> /*

Automatically set LOD Levels of models (C)2010 by Tom Vogt Use and modify as you wish, but retain author credits (aka BSD license)


  • Create an empty gameobject
  • Drag all LOD levels into it, so they become children of the LOD object
  • Attach this script to the empty gameobject
  • Set the number of meshes in the script, and drag them into the slots, from highest (closest) to lowest (far away)
  • Set the number of distances to one less than the number of meshes (beyond the highest distance will use the most far away mesh automatically)
  • Set the distances at which the script shall switch to the next lowest LOD. So the first number means "at this distance or less, use the highest LOD".
  • Press Play and drag the camera around to check if your distances are fine.

  • /

public var Distances : float[]; public var Models : GameObject[];

private var current = -2;

function Start() { for (var i=0; i<Models.Length; i++) { Models[i].SetActiveRecursively(false); } }

function Update() { var d = Vector3.Distance(camera.main.transform.position, transform.position); var stage = -1; for (var i=0; i<Distances.Length; i++) { if (d<Distances[i]) { stage=i; i=Distances.Length; } } if (stage==-1) stage=Distances.Length; if (current!=stage) { SetLOD(stage); } }

function SetLOD(stage) { Models[stage].SetActiveRecursively(true); if (current>=0) Models[current].SetActiveRecursively(false); current = stage; }


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