// Draws a triangle over an already drawn triangle
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.Color(Color.red);
    GL.Begin(GL.TRIANGLES);
    GL.Vertex3(0.25,0.1351,0);
    GL.Vertex3(0.25,0.3,0);
    GL.Vertex3(0.5,0.3,0);
    GL.End();
    GL.Color(Color.yellow);
    GL.Begin(GL.TRIANGLES);
    GL.Vertex3(0.5,0.25,-1);
    GL.Vertex3(0.5,0.1351,-1);
    GL.Vertex3(0.1,0.25,-1);
    GL.End();
    GL.PopMatrix();
}

using UnityEngine;
using System.Collections;

public class example : 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.Color(Color.red);
        GL.Begin(GL.TRIANGLES);
        GL.Vertex3(0.25F, 0.1351F, 0);
        GL.Vertex3(0.25F, 0.3F, 0);
        GL.Vertex3(0.5F, 0.3F, 0);
        GL.End();
        GL.Color(Color.yellow);
        GL.Begin(GL.TRIANGLES);
        GL.Vertex3(0.5F, 0.25F, -1);
        GL.Vertex3(0.5F, 0.1351F, -1);
        GL.Vertex3(0.1F, 0.25F, -1);
        GL.End();
        GL.PopMatrix();
    }
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

    public mat as Material

    def OnPostRender():
        if not mat:
            Debug.LogError('Please Assign a material on the inspector')
            return
        GL.PushMatrix()
        mat.SetPass(0)
        GL.LoadOrtho()
        GL.Color(Color.red)
        GL.Begin(GL.TRIANGLES)
        GL.Vertex3(0.25F, 0.1351F, 0)
        GL.Vertex3(0.25F, 0.3F, 0)
        GL.Vertex3(0.5F, 0.3F, 0)
        GL.End()
        GL.Color(Color.yellow)
        GL.Begin(GL.TRIANGLES)
        GL.Vertex3(0.5F, 0.25F, -1)
        GL.Vertex3(0.5F, 0.1351F, -1)
        GL.Vertex3(0.1F, 0.25F, -1)
        GL.End()
        GL.PopMatrix()