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.

using UnityEngine;

public class Example : MonoBehaviour
{
    void Start()
    {
        // Set AntiAliasing to use 2x Multisampling
        QualitySettings.antiAliasing = 2;
    }
}

See Also: Quality Settings.