【Hacker News搬运】基于FFT的海浪渲染，在Godot中实现

hackernews

Title: FFT-based ocean-wave rendering, implemented in Godot

基于FFT的海浪渲染，在Godot中实现

Text:

Url: https://github.com/2Retr0/GodotOceanWaves

标题：GitHub - 2Retr0/GodotOceanWaves: 基于FFT的海洋波渲染，实现于Godot

摘要：这是一个在Godot引擎中实现的基于快速傅里叶变换（FFT）的海洋波渲染技术。该项目展示了如何使用FFT算法在Godot中创建逼真的海洋波效果。

内容总结：
该GitHub项目提供了一个使用Godot游戏引擎实现的海洋波渲染方案。通过FFT（快速傅里叶变换）算法，该项目能够生成动态且逼真的海洋波效果。FFT是一种有效的数学算法，常用于信号处理领域，它可以将时间域的数据转换到频率域，这在渲染动态效果时非常有用。在Godot引擎中应用FFT算法，可以帮助开发者创造出更加真实的海洋场景，适用于游戏、模拟或视觉效果制作等领域。通过这个项目，开发者可以学习到如何在自己的Godot项目中集成FFT算法来增强视觉效果。

Post by: RafelMri

Comments:

kamranjon: The other two Godot repos by this person are very interesting as well. I love the level of detail they add to explaining their repos. This one is particularly interesting: <a href="https://github.com/2Retr0/GodotGaussianSplatting">https://github.com/2Retr0/GodotGaussianSplatting</a>Wonder if they are a student, they seem to cite other work frequently and have a strong grasp on recently published materials.

kamranjon: 这个人的另外两个Godot repos也很有趣。我喜欢他们在解释他们的转发时所添加的细节。这个特别有趣：<a href=“https:&#x2F；github.com/ 2Retr0&#x2F-GodotGaussian Splatting”>https:&quot&#x2F；github.com；2Retr0&#x2F；GodotGaussian Splatting</a>不知道如果他们是学生，他们似乎经常引用其他作品，并且对最近发表的材料有很强的把握。

jesperwe: 20 years ago I could spend months tweaking ocean surface in renders and not get even close to that. Amazing how good this is!!Although the demo clip feels a bit exaggerated (saying this having over 50k Nm open water ocean sailing in my logbook). Waves that sharp and high would need the wind blowing a lot stronger. But I am sure that is just a parameter adjustment away!Since it is in Godot I assume the rendering is real time? Does it need a monster GPU?

jesperwe: 20年前，我可能会花几个月的时间在渲染中调整海洋表面，甚至无法接近。这真是太棒了 虽然演示片段感觉有点夸张（我的航海日志中有超过50kNm的公海航行）。如此尖锐和高的波浪需要风吹得更强。但我敢肯定，这只是一个参数调整 既然是在Godot中，我假设渲染是实时的？它需要怪物GPU吗？

fcatalan: Things like this brought me into computers, but along the way I fell for the easy and boring life of glueing libraries, endpoints and corporate bullshit that leads to burnout.
Perhaps some day...

fcatalan: 这样的事情把我带到了计算机领域，但一路上，我爱上了粘图书馆、端点和公司废话的轻松无聊的生活，这会导致倦怠。也许有一天。。。

viraptor: Different approaches, but if someone's interested in waves/ocean simulation, Acerola published some awesome (as always) videos on this topic. <a href="https://youtu.be/PH9q0HNBjT4" rel="nofollow">https://youtu.be/PH9q0HNBjT4</a> and <a href="https://youtu.be/yPfagLeUa7k" rel="nofollow">https://youtu.be/yPfagLeUa7k</a> (edit: just realised one is linked in the references, just under the real name rather than nick)

viraptor: 不同的方法，但如果有人；对波浪感兴趣；Acerola发布了一些关于海洋模拟的精彩视频（一如既往）<a href=“https:&#x2F；youtu.be/ PH9q0HNBjT4”rel=“nofollow”>https:&quot&#x2F；youtu.be；PH9q0HNBjT4</a>和<a href=“https:&#x2F；youtu.be/ yPfagLeUa7k”rel=“nofollow”>https:&#x2F；youtu.be；yPfagLeUa7k</a>（编辑：刚刚意识到一个链接在引用中，只是在真实姓名下，而不是昵称下）

btbuildem: It's interesting how hard this problem is. We've been trying for decades, and we're still in the uncanny valley with it.If you freeze-frame this, the peaking waves look like snow-capped mountains. It feels unrealistic because for water to have features this sharp, it would have to be quite windy -- and the wind would never be blowing straight up. Here, the sharp features would need to be directional.The simulation has the swell nature of the waves down pretty well though. There isn't as much horizontal movement, as more up-and-down, which is what you'd expect to see in open water.

btbuildem: 它；有趣的是，这个问题有多难；我们已经努力了几十年；如果你把它定格在画面中，那么最高的海浪看起来就像白雪皑皑的山脉。这感觉不切实际，因为水要有如此锋利的特征，就必须有很大的风——而且风永远不会直吹。在这里，尖锐的特征需要具有方向性 不过，该模拟很好地模拟了波浪的涌浪特性。没有；与其说是水平移动，不如说是上下移动，这就是你所做的；我希望能在开阔的水域看到。