戰平OpenGL和GLKViewController一個三角形與Xamarin

我想畫一個三角形打招呼（或四）與GLViewController就像在this Xamarin例如對所有OpenGL戰平OpenGL和GLKViewController一個三角形與Xamarin

的例子創建自己的幀緩存和其他邏輯，作爲我的理解已經由GLView做閱讀here

我使用的是從GLKViewController派生的類是在主故事板

類應明確與動畫黑色的背景，紅色的蘋果文檔（這是actuallly工作）並繪製在屏幕上四（是不是）

這是我走到這一步，代碼：

partial class GpuImageView : MonoTouch.GLKit.GLKViewController 
{ 
    public GpuImageView (IntPtr handle) : base (handle) 
    { 

    } 

    GLKView glkView; 
    EAGLContext Context; 

    public override void ViewDidLoad() 
    { 
     base.ViewDidLoad(); 

     //create the rendering context 
     Context = new EAGLContext(EAGLRenderingAPI.OpenGLES2); 

     //get the view: 
     glkView = (GLKView)this.View; 

     glkView.Context = Context; 
     glkView.MultipleTouchEnabled = true; 

     glkView.DrawInRect += Draw; 

    } 

    public override void Update() 
    { 
     color = (color > 1.0F) ? (0F) : (color + 1.0F/30.0F); 
    } 

    float color ; 
    void Draw (object sender, GLKViewDrawEventArgs e) 
    { 
     GL.Viewport(0, 0, glkView.DrawableWidth, glkView.DrawableHeight); 

     //this matrix initialization is copied from the OpenGLES example: 
     GL.MatrixMode (All.Projection); 
     GL.LoadIdentity(); 
     GL.Ortho (-1.0f, 1.0f, -1.5f, 1.5f, -1.0f, 1.0f); 
     GL.MatrixMode(All.Modelview); 
     GL.LoadIdentity(); 

     float[] squareVertices = { 
      -0.5f, -0.5f, 
      0.5f, -0.5f, 
      -0.5f, 0.5f, 
      0.5f, 0.5f, 
     }; 
     byte[] squareColors = { 
      255, 255, 0, 255, 
      0, 255, 255, 255, 
      0,  0, 0, 0, 
      255, 0, 255, 255, 
     }; 


     //The color clear is working fine :) 
     GL.ClearColor(color, 0F, 0F, 1F); 
     GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit); 

     //The quad never draws: 
     GL.VertexPointer (2, All.Float, 0, squareVertices); 
     GL.EnableClientState (All.VertexArray); 
     GL.ColorPointer (4, All.UnsignedByte, 0, squareColors); 
     GL.EnableClientState (All.ColorArray); 

     GL.DrawArrays (All.TriangleStrip, 0, 4); 
    }

這是我是圖書館使用（增加了「OpenTK-1.0」的項目）：

using System; 
using MonoTouch.Foundation; 
using MonoTouch.UIKit; 
using System.CodeDom.Compiler; 
using MonoTouch.OpenGLES; 
using MonoTouch.GLKit; 
using OpenTK.Graphics.ES11; 
using MonoTouch.CoreAnimation;

來源

2015-01-09 rafael

我初始化與OpenGLES2的EAGL背景下，改爲OpenGLES1解決了這個問題

來源

2015-01-09 22:43:23 rafael

戰平OpenGL和GLKViewController一個三角形與Xamarin

回答

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