C# 索引未呈现-XNA

我最终决定给我的minecraft引擎添加索引支持，但问题是，一旦我添加了索引，就什么都没有出现。。。我知道这不是很好的描述，但有人能检查一下我的代码，看看我是否做错了什么；）谢谢

有什么想法吗

---

谢谢，尊敬的，Darestium当我创建缓冲区时，我使用整数而不是short（我用于保存索引的列表）分配了太多内存

而不是

SolidIndices = new IndexBuffer(Variables.GRAPHICS_DEVICE, typeof(short), IndexList.Count, BufferUsage.WriteOnly);
SolidIndices.SetData(IndexList.ToArray());

---

我想你最好自己调试一下。尝试使用PIX（在DirectX SDK中）查看实际渲染的内容。

   public void BuildFaceVertices(Block block, Vector3 pos, BlockFaceDirection blockFaceDirection)
    {
        Vector3 topLeftFront = new Vector3(0f, 1f, 0f) + pos;
        Vector3 bottomLeftFront = new Vector3(0f, 0f, 0f) + pos;
        Vector3 topRightFront = new Vector3(1f, 1f, 0f) + pos;
        Vector3 bottomRightFront = new Vector3(1f, 0f, 0f) + pos;
        Vector3 topLeftBack = new Vector3(0f, 1f, -1f) + pos;
        Vector3 topRightBack = new Vector3(1f, 1f, -1f) + pos;
        Vector3 bottomLeftBack = new Vector3(0f, 0f, -1f) + pos;
        Vector3 bottomRightBack = new Vector3(1f, 0f, -1f) + pos;

        int row = (int)block.BlockType / Variables.TILE_ALAIS.NumberOfColumns;
        int column = (int)block.BlockType - row * Variables.TILE_ALAIS.NumberOfColumns;

        float unit = 1.0f / (float)Variables.TILE_ALAIS.NumberOfColumns;

        float x = column * unit;
        float y = row * unit;

        Vector2 topLeft = new Vector2(x, y);
        Vector2 topRight = new Vector2(x + unit, y);
        Vector2 bottomLeft = new Vector2(x, y + unit);
        Vector2 bottomRight = new Vector2(x + unit, y + unit);



        switch (blockFaceDirection)
        {
            case BlockFaceDirection.ZIncreasing:
                SolidVertices.Add(new VertexPositionTexture(topRightFront, topRight));
                SolidVertices.Add(new VertexPositionTexture(bottomRightFront, bottomRight));
                SolidVertices.Add(new VertexPositionTexture(bottomLeftFront, bottomLeft));
                SolidVertices.Add(new VertexPositionTexture(topRightFront, topRight));
                SolidVertices.Add(new VertexPositionTexture(bottomLeftFront, bottomLeft));
                SolidVertices.Add(new VertexPositionTexture(topLeftFront, topLeft));
                break;
            case BlockFaceDirection.ZDecreasing:
                // Clockwise
                SolidVertices.Add(new VertexPositionTexture(bottomRightBack, bottomLeft));
                SolidVertices.Add(new VertexPositionTexture(topRightBack, topLeft));
                SolidVertices.Add(new VertexPositionTexture(topLeftBack, topRight));
                SolidVertices.Add(new VertexPositionTexture(bottomLeftBack, bottomRight));
                SolidVertices.Add(new VertexPositionTexture(bottomRightBack, bottomLeft));
                SolidVertices.Add(new VertexPositionTexture(topLeftBack, topRight));
                break;
            case BlockFaceDirection.YIncreasing:
                SolidVertices.Add(new VertexPositionTexture(topRightBack, topRight));
                SolidVertices.Add(new VertexPositionTexture(topRightFront, bottomRight));
                SolidVertices.Add(new VertexPositionTexture(topLeftFront, bottomLeft));
                SolidVertices.Add(new VertexPositionTexture(topRightBack, topRight));
                SolidVertices.Add(new VertexPositionTexture(topLeftFront, bottomLeft));
                SolidVertices.Add(new VertexPositionTexture(topLeftBack, topLeft));                 
                break;
            case BlockFaceDirection.YDecreasing:
                SolidVertices.Add(new VertexPositionTexture(bottomLeftFront, topLeft));
                SolidVertices.Add(new VertexPositionTexture(bottomRightFront, topRight));
                SolidVertices.Add(new VertexPositionTexture(bottomLeftBack, bottomLeft));

                SolidVertices.Add(new VertexPositionTexture(bottomRightFront, topRight));
                SolidVertices.Add(new VertexPositionTexture(bottomRightBack, bottomRight));
                SolidVertices.Add(new VertexPositionTexture(bottomLeftBack, bottomLeft));
                break;
            case BlockFaceDirection.XIncreasing:
                SolidVertices.Add(new VertexPositionTexture(topRightBack, topRight));
                SolidVertices.Add(new VertexPositionTexture(bottomRightFront, bottomLeft));
                SolidVertices.Add(new VertexPositionTexture(topRightFront, topLeft));
                SolidVertices.Add(new VertexPositionTexture(topRightBack, topRight));
                SolidVertices.Add(new VertexPositionTexture(bottomRightBack, bottomRight));
                SolidVertices.Add(new VertexPositionTexture(bottomRightFront, bottomLeft));
                break;
            case BlockFaceDirection.XDecreasing:
                SolidVertices.Add(new VertexPositionTexture(topLeftBack, topLeft));
                SolidVertices.Add(new VertexPositionTexture(topLeftFront, topRight));
                SolidVertices.Add(new VertexPositionTexture(bottomLeftFront, bottomRight));
                SolidVertices.Add(new VertexPositionTexture(topLeftBack, topLeft));
                SolidVertices.Add(new VertexPositionTexture(bottomLeftFront, bottomRight));
                SolidVertices.Add(new VertexPositionTexture(bottomLeftBack, bottomLeft));
                break;

        }
    }

SolidIndices = new IndexBuffer(Variables.GRAPHICS_DEVICE, typeof(int), IndexList.Count, BufferUsage.WriteOnly);
SolidIndices.SetData(IndexList.ToArray());

SolidIndices = new IndexBuffer(Variables.GRAPHICS_DEVICE, typeof(short), IndexList.Count, BufferUsage.WriteOnly);
SolidIndices.SetData(IndexList.ToArray());