java - 数组缓冲区对象已禁用

我试图创建其中存储有xpos，ypos，type和modelInstance的3D多维数据集。当我尝试运行程序时，出现此错误：


  线程“ LWJGL应用程序”中的异常org.lwjgl.opengl.OpenGLException：禁用数组缓冲区对象时无法使用偏移量


如何启用它？

这是我收到错误的类：

package com.me.the_unknown;

import java.util.ArrayList;

import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.VertexAttributes.Usage;
import com.badlogic.gdx.graphics.g3d.Model;
import com.badlogic.gdx.graphics.g3d.ModelBatch;
import com.badlogic.gdx.graphics.g3d.ModelInstance;
import com.badlogic.gdx.graphics.g3d.materials.Material;
import com.badlogic.gdx.graphics.g3d.materials.TextureAttribute;
import com.badlogic.gdx.graphics.g3d.utils.ModelBuilder;

public class Blocks {

    public static ArrayList<Float> blockX = new ArrayList<Float>();
    public static ArrayList<Float> blockY = new ArrayList<Float>();
    public static ArrayList<Integer> blockType = new ArrayList<Integer>();
    public static ArrayList<ModelInstance> blockModelInstance = new ArrayList<ModelInstance>();

    public static ModelBatch modelBatch;
    private static ModelBuilder modelBuilder;

    //Textures
    public static Texture stonebrick = new Texture("data/blocks/stonebrick.png");
    public static Texture gravel = new Texture("data/blocks/gravel.png");

    public static void addBlock(int xpos, int ypos, int type) {
        blockX.add((float) xpos * 5);
        blockY.add((float) ypos * 5);
        blockType.add(type);
        updateBlocks();
    }

    private static void updateBlocks() {
        blockModelInstance.clear();

        for(int counter = 0; counter < blockX.size(); counter++){
            Model model = null;
            ModelInstance instance;

            if(blockType.get(counter) == 1)
                model = modelBuilder.createBox(5f, 5f, 5f, new Material(TextureAttribute.createDiffuse(stonebrick)), Usage.Position | Usage.Normal | Usage.TextureCoordinates | Usage.Generic);
            if(blockType.get(counter) == 2)
                model = modelBuilder.createBox(5f, 5f, 5f, new Material(TextureAttribute.createDiffuse(gravel)), Usage.Position | Usage.Normal | Usage.TextureCoordinates | Usage.Generic);

            instance = new ModelInstance(model);
            blockModelInstance.add(instance);

            model.dispose();
        }
    }

    public static void create() {
        modelBuilder = new ModelBuilder();
        updateBlocks();
    }
}

最佳答案

您正在创建一个Model，然后为其创建一个ModelInstance，然后处置该Model，这实际上使该ModelInstance不可用，因为它依赖于Model。

在管理模型资源时，请确保模型的寿命超过依赖它的模型实例。在您的情况下，ModelInstance将无效，因为它所依赖的Mesh随对model.dispose（）的调用而被处置，从而导致您得到错误。

此外，请尝试避免产生静电，当您关闭应用程序然后再次重新启动时，它可能会在设备上引起问题。