Unity Script Reference

GL.Color

static function Color (c : Color) : void

Description

Sets current vertex color.

In OpenGL this matches glColor4f(c.r,c.g,c.b,c.a); on other graphics APIs the same functionality is emulated.

In order for per-vertex colors to work reliably across different hardware, you have to use a shader that binds in the color channel. See BindChannels documentation.

This function can only be called between GL.Begin and GL.End functions.

JavaScript

// Draws a red line from the bottom right
// to the top left of the Screen
// And a yellow line from the bottom left
// to the top right 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.LINES);
    GL.Color(Color.red);
    GL.Vertex3(1,0,0);
    GL.Vertex3(0,1,0);
    GL.Color(Color.yellow);
    GL.Vertex3(0,0,0);
    GL.Vertex3(1,1,0);
    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.Begin(GL.LINES);
        GL.Color(Color.red);
        GL.Vertex3(1, 0, 0);
        GL.Vertex3(0, 1, 0);
        GL.Color(Color.yellow);
        GL.Vertex3(0, 0, 0);
        GL.Vertex3(1, 1, 0);
        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.Begin(GL.LINES)
        GL.Color(Color.red)
        GL.Vertex3(1, 0, 0)
        GL.Vertex3(0, 1, 0)
        GL.Color(Color.yellow)
        GL.Vertex3(0, 0, 0)
        GL.Vertex3(1, 1, 0)
        GL.End()
        GL.PopMatrix()