如何在 XNA 中隐藏立方体模型的某些面以供体素引擎优化？
你好，我正在尝试制作一个类似于 Minecraft 的地形引擎。
我能够加载一个块。它非常滞后，当一次加载多个块时，它会变得无法播放。
这是我的渲染代码：
public static void renderNormalBlock(GraphicsDevice g, Chunk chunk,Texture2D texture, int x, int y, int z)
{
float tileSize = 0.5F;
Vector3 blockPosition = new Vector3(x / tileSize, y / tileSize, z / tileSize);
Model blockModel = Main.defaultBlockModel;
ModelMesh mesh = blockModel.Meshes[0];
g.SamplerStates[0] = SamplerState.PointWrap;
BasicEffect effect = (BasicEffect)mesh.Effects[0];
effect.TextureEnabled = true;
effect.Texture = texture;
effect.View = Main.camera;
effect.Projection = Matrix.CreatePerspectiveFieldOfView(MathHelper.ToRadians(45), g.DisplayMode.AspectRatio, 1, 128);
effect.World = Matrix.CreateWorld(blockPosition, Vector3.Forward, Vector3.Up);
mesh.Draw();
}
如您所见，我没有使用 for-each 或 for 循环，因为它只是一个立方体；这不是必需的。
我做了一些研究，发现最好的答案是我需要隐藏立方体不可见的面。所以说，如果有 2 个立方体彼此相邻，我不想渲染面之间的内容。
这就是我陷入困境的地方，大多数人都使用在 XNA 中绘制的立方体，而我使用的是模型。
我是 XNA 的新手，由于我目前是 9 年级，所以我不太了解手动绘制立方体所涉及的数学知识，所以我使用了一个模型。
那么我该如何只渲染可见的面呢？
Hello I'm trying to make a terrain engine similar to that of Minecraft.
I was able to get a chunk loaded. It is very laggy and when there is more than one chunk loaded at once it becomes unplayable.
This is my render code:
public static void renderNormalBlock(GraphicsDevice g, Chunk chunk,Texture2D texture, int x, int y, int z)
{
float tileSize = 0.5F;
Vector3 blockPosition = new Vector3(x / tileSize, y / tileSize, z / tileSize);
Model blockModel = Main.defaultBlockModel;
ModelMesh mesh = blockModel.Meshes[0];
g.SamplerStates[0] = SamplerState.PointWrap;
BasicEffect effect = (BasicEffect)mesh.Effects[0];
effect.TextureEnabled = true;
effect.Texture = texture;
effect.View = Main.camera;
effect.Projection = Matrix.CreatePerspectiveFieldOfView(MathHelper.ToRadians(45), g.DisplayMode.AspectRatio, 1, 128);
effect.World = Matrix.CreateWorld(blockPosition, Vector3.Forward, Vector3.Up);
mesh.Draw();
}
As You can see I am not using for-each or for loops because as it's only a cube; It is not required.
I did some research and the best answer I found was that I need to hide the cube's faces that are not visible. So say if there's 2 cubes next to each other, I don't want to render the in between faces.
This is where I get stuck, Most people are using cubes that were drawn in XNA, and I'm using a model.
I'm new to XNA and I don't understand too much of the Math involved in manually drawing a cube since I'm currently in grade 9, so I used a model.
So how would I go about rendering only the faces that are visible?
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（1）
在学习基础知识之前就开始开发游戏。这样你不会走得太远。首先找一本关于 XNA 开发的书并仔细阅读。这是一个基本主题，将在那里讨论。另外，访问 techCraft http://techcraft.codeplex.com/ 并下载他们的实现，其中包含所有内容代码。仅此一点你就会学到很多东西。
your starting to develop a game before learning the basics. you wont get too far this way. First grab a book about XNA development and go through it. This is a basic subject that will be covered there. In addition, go visit techCraft http://techcraft.codeplex.com/ and download their implementation which comes with all the code. you will learn alot from that alone.