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Unity3D中文文档

script:unityengine:classes:gl:gl.quads

GL.QUADS 四边形

JavaScript ⇒ public static var QUADS: int;
C# ⇒ public static int QUADS;

Description 描述

Mode for Begin: draw quads.

从Begin模式开始后,然后绘制四边形。

If you want to draw something 2D in screen space then probably you will want to use GL.LoadOrtho or GL.LoadPixelMatrix.

如果在场景中画2D对象,你可能要用到GL.LoadOrtho 或 GL.LoadPixelMatrix函数。

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:

	// Draw red a rombus on the screen
	// and also draw a small cyan Quad in the left corner
	//在屏幕上绘制一个红色菱形,并在左下角绘制一个青色小方形
	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.QUADS);
		GL.Color(Color.red);
		GL.Vertex3(0,0.5,0);
		GL.Vertex3(0.5,1,0);
		GL.Vertex3(1,0.5,0);
		GL.Vertex3(0.5,0,0);
 
		GL.Color(Color.cyan);
		GL.Vertex3(0,0,0);
		GL.Vertex3(0,0.25,0);
		GL.Vertex3(0.25,0.25,0);
		GL.Vertex3(0.25,0,0);
		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.QUADS);
        GL.Color(Color.red);
        GL.Vertex3(0, 0.5F, 0);
        GL.Vertex3(0.5F, 1, 0);
        GL.Vertex3(1, 0.5F, 0);
        GL.Vertex3(0.5F, 0, 0);
        GL.Color(Color.cyan);
        GL.Vertex3(0, 0, 0);
        GL.Vertex3(0, 0.25F, 0);
        GL.Vertex3(0.25F, 0.25F, 0);
        GL.Vertex3(0.25F, 0, 0);
        GL.End();
        GL.PopMatrix();
    }
}

GL

script/unityengine/classes/gl/gl.quads.txt · 最后更改: 2016/08/02 05:24 (外部编辑)