Question

JavaScript => public static var TRIANGLES: int;
C# => public static int TRIANGLES;

Description 描述

Mode for Begin: draw triangles.

从Begin模式开始后，然后绘制三角形。

If you want to draw something 2D in screen space then probably you will want to use GL.LoadOrtho or GL.LoadPixelMatrix.
If you want something in “3D”, then probably you should consider using GL.LoadIdentity followed by GL.MultMatrix with the actual 3D transform you want your stuff to be in.

如果在场景中画2D对象，你可能要用到GL.LoadOrtho 或 GL.LoadPixelMatrix函数。
如果在场景中画3D对象，你可能要用到GL.LoadIdentity 或 GL.MultMatrix函数进行3D变换。

See Also: GL.Begin, GL.End.

JavaScript:

	// Draws a triangle that covers the middle of the screen
	var mat : Material;
 
	function OnPostRender() {
		if (!mat) {
			Debug.LogError("Please Assign a material on the inspector");
			return;
		}
		GL.PushMatrix();
		mat.SetPass(0);
		GL.LoadOrtho();
		GL.Begin(GL.TRIANGLES);
		GL.Vertex3(0,0,0);
		GL.Vertex3(1,1,0);
		GL.Vertex3(0,1,0);
		GL.End();
		GL.PopMatrix();
	}

C#:

using UnityEngine;
using System.Collections;
 
public class ExampleClass : MonoBehaviour {
    public Material mat;
    void OnPostRender() {
        if (!mat) {
            Debug.LogError("Please Assign a material on the inspector");
            return;
        }
        GL.PushMatrix();
        mat.SetPass(0);
        GL.LoadOrtho();
        GL.Begin(GL.TRIANGLES);
        GL.Vertex3(0, 0, 0);
        GL.Vertex3(1, 1, 0);
        GL.Vertex3(0, 1, 0);
        GL.End();
        GL.PopMatrix();
    }
}

GL