3D立方体慢慢地渲染

Question

我重写了我的block.cs类之后修复了我之前的问题，但是，我有一个最后的问题：

我有256个块的列表，每个块有12个三角形和36个顶点。当我使用：

渲染这些块时

blocks.ForEach(block => block.Draw(spriteBatch, camera, effect));

它们会渲染，但游戏速度会急剧下降，大约为0.25 FPS。每个块都有不同的纹理。 3072个三角形和9216个顶点是否会导致这个问题？

我的渲染代码：

    public void Render(GraphicsDevice graphicsDevice)
    {
        if (!isConstructed) ConstructBlock();

        using (var buffer = new VertexBuffer(graphicsDevice, VertexPositionNormalTexture.VertexDeclaration, NUMVERTICES, BufferUsage.WriteOnly))
        {
            buffer.SetData(vertices);
            graphicsDevice.SetVertexBuffer(buffer);
        }

        graphicsDevice.DrawUserPrimitives(PrimitiveType.TriangleList, vertices, 0, NUMTRIANGLES);
    }

我的魔方的抽奖代码：

    public void Draw(SpriteBatch spriteBatch, Camera camera, BasicEffect effect)
    {


        effect = new BasicEffect(spriteBatch.GraphicsDevice)
        {
            TextureEnabled = true,
            Texture = Texture,
            View = camera.View,
            Projection = camera.Projection,
            World = Matrix.Identity
        };


        effect.EnableDefaultLighting();
        foreach (var pass in effect.CurrentTechnique.Passes)
        {
            pass.Apply();
            Render(spriteBatch.GraphicsDevice);
        }
    }