Java lwjgl GLSL 着色器问题与 mac osx 验证失败：没有顶点数组对象绑定

Question

我正在使用lwjgl在 Java 中构建 OPENGL 应用程序，并遵循thebennybox在 YouTube 上的部分教程

我能够使用我构建的 Mesh 类创建矩形。

import engine.core.Util;

import static org.lwjgl.opengl.GL15.*;

import static org.lwjgl.opengl.GL20.*;

public class Mesh {

    private int vbo;

    private int size;

    public Mesh() {

       this.vbo = glGenBuffers();

       this.size = 0;

    }

    public void addVertices(Vertex[] vertices){

        this.size = vertices.length * Vertex.SIZE;

        glBindBuffer(GL_ARRAY_BUFFER, vbo);

        glBufferData(GL_ARRAY_BUFFER, Util.createFlippedBuffer(vertices), GL_STATIC_DRAW);

    }

    public void draw(){

        glEnableVertexAttribArray(0);

        glBindBuffer(GL_ARRAY_BUFFER, vbo);

        glVertexAttribPointer(0, 3, GL_FLOAT, false, Vertex.SIZE * 4, 0);

        glDrawArrays(GL_TRIANGLES, 0, this.size);

        glDisableVertexAttribArray(0);

    }

}

和util帮手

import engine.render.Vertex;

import org.lwjgl.BufferUtils;

import java.nio.FloatBuffer;

public class Util {

    public static FloatBuffer createFloatBuffer(int size){

        return BufferUtils.createFloatBuffer(size);

    }

    public static FloatBuffer createFlippedBuffer(Vertex[] vertices){

        FloatBuffer buffer = createFloatBuffer(vertices.length * Vertex.SIZE);

        for(int i = 0; i < vertices.length; i++) {

            buffer.put(vertices[i].getPos().getX());

            buffer.put(vertices[i].getPos().getY());

            buffer.put(vertices[i].getPos().getZ());

        }

        buffer.flip();

        return buffer;

    }

}

这是我渲染的方式

  this.mesh = new Mesh();

   Vertex[] data = new Vertex[]{

           //1st triangle

           new Vertex(new Vector3(0.5f,-0.5f,0)), //RB

           new Vertex(new Vector3(-0.5f,-0.5f,0)), //LB

           new Vertex(new Vector3(0.5f,0.5f,0)), //RT

           //2nd triangle

           new Vertex(new Vector3(-0.5f,0.5f,0)), //RB

           new Vertex(new Vector3(0.5f,0.5f,0)), //RT

           new Vertex(new Vector3(-0.5f,-0.5f,0)), //LB

   };

   mesh.addVertices(data);

   public void render(){ //update per frame

     mesh.draw();

   }