QualitySettings.antiAliasing

Description

Set The AA Filtering option.

Anti-aliasing value indicates the number of samples per pixel. If unsupported by the hardware or rendering API, the greatest supported number of samples less than the indicated number is used.

    // Set AntiAliasing to use 2x Multisampling

function Start() {
    QualitySettings.antiAliasing = 2;
}

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    void Start() {
        QualitySettings.antiAliasing = 2;
    }
}

See Also: Quality Settings.