C#にポート

LineRendererではない方法で線を書く

http://docs.unity3d.com/ScriptReference/GL.html

公式なのにC#がない・・・。
勉強しないエンジニアがよく使うUnityScriptだったのでC#にポートした。

using UnityEngine;
using System.Collections;

public class CreateLine : MonoBehaviour
{
    static Material lineMaterial;

    static void CreateLineMaterial ()
    {
        if (!lineMaterial)
        {
            lineMaterial = new Material ("Shader \"Lines/Colored Blended\" {" +
                "SubShader { Pass { " +
                "    Blend SrcAlpha OneMinusSrcAlpha " +
                "    ZWrite Off Cull Off Fog { Mode Off } " +
                "    BindChannels {" +
                "      Bind \"vertex\", vertex Bind \"color\", color }" +
                "} } }");
            lineMaterial.hideFlags = HideFlags.HideAndDontSave;
            lineMaterial.shader.hideFlags = HideFlags.HideAndDontSave;
        }
    }

    void OnPostRender ()
    {
        CreateLineMaterial ();
        // set the current material
        lineMaterial.SetPass (0);
        GL.Begin (GL.LINES);
        GL.Color (new Color (1, 1, 1, 0.5f));
        GL.Vertex3 (0, 0, 0);
        GL.Vertex3 (1, 0, 0);
        GL.Vertex3 (0, 1, 0);
        GL.Vertex3 (1, 1, 0);
        GL.Color (new Color (0, 0, 0, 0.5f));
        GL.Vertex3 (0, 0, 0);
        GL.Vertex3 (0, 1, 0);
        GL.Vertex3 (1, 0, 0);
        GL.Vertex3 (1, 1, 0);
        GL.End ();
    }
}