编程与软件工程adriancourreges.com编辑精选
GTA V 图形渲染研究
GTA V – Graphics Study
2015 — 2018，它一次次回到首页
黑点是上首页（≥ 50 分）的那次投稿，空心点是没冲上去的投稿，点越大分数越高。
导读
作者 Adrian Courrèges 通过逐帧抓取分析，深入拆解了《GTA V》一帧画面背后的完整渲染流程：多通道渲染、LOD 剔除、软阴影模糊、延迟着色等技术被一一呈现。文章把一个庞大复杂的实时渲染管线拆成清晰的小步骤，展示了游戏引擎如何在一帧之内完成海量处理。
为什么经久不衰：它把看似'魔法'般的游戏画面还原成可理解的工程步骤，是实时图形学逆向分析的经典范例，多年后仍是学习现代渲染管线的绝佳入门材料。
HN 评论精选
复杂技术被拆解成清晰步骤，令人感叹实时渲染进步之快
看到这么棘手的大问题被拆成这么多小块真有意思：多通道渲染、LOD 剔除、软阴影模糊。这让我想起克拉克的名言'任何足够先进的技术都与魔法无异'。每一帧都要经过惊人的处理步骤。想到 2002 年用 Windows NT 机群跑 3D Studio Max 渲染要花多少小时，我都觉得自己老了。
gdubs查看英文原文
Really neat to see a big hairy problem broken up into so many small chunks. Multi-pass rendering, level of detail culling, soft-shadow blurring. It reminds me of the Arthur C. Clark quote that "Any sufficiently advanced technology is indistinguishable from magic". There's a phenomenal amount of processing steps happening here, on a frame-by-frame basis. I feel old thinking of how many hours this type of rendering took running 3D Studio Max back in 2002 on a network of Windows NT boxes.
推荐作者此前的两篇同类图形分析文章
这是作者拆解的第三款游戏，前两篇也非常精彩：《最高指挥官》和《杀出重围：人类分裂》的图形分析。
corysama查看英文原文
This is the third game that the author has dissected. The previous two are also very nice :) http://www.adriancourreges.com/blog/2015/06/23/supreme-commander-graphics-study/ http://www.adriancourreges.com/blog/2015/03/10/deus-ex-human-revolution-graphics-study/
补充解释棋盘格抖动的真正原因：延迟着色下 alpha 不可用
关于棋盘格抖动模式，我认为更好的解释是：延迟着色不支持传统 alpha 混合，所以他们用屏幕门透明（screendoor transparency）来代替，以节省填充率和着色计算。
johntb86查看英文原文
> "I believe this mode is used for meshes very far away or transitioning between LOD levels, it allows to save on fillrate and shading calculation by discarding certain pixels." I think this is a better answer for why they use checkerboarding: http://gamedev.stackexchange.com/questions/47844/why-are-some-games-using-some-dithering-pattern-instead-of-traditional-alpha-for Summary: Alpha doesn't work in deferred shading, so they use screendoor transparency instead.
游戏开发结合前沿图形技术与快速迭代，魅力独特
我一直热爱计算机科学，但总是被游戏吸引，这篇文章让我想起原因：把前沿图形技术用于创造美丽画面和沉浸世界太迷人了。而且游戏的视觉/音频迭代循环很紧凑，构思出方案几小时后就能有玩家可测试的原型，回报感极强。
shinymark查看英文原文
I love computer science and have been attracted to all aspects of it for years. But I still continue to gravitate towards games and this article reminds me of why. Thank you to the author. Practical application of cutting edge graphics tech to both make a beautiful image and create an immersive world is so compelling to me. I also really like the tight visual/audio iteration loop games provide for day to day work. It's incredibly rewarding to me to conceptualize how to solve a problem and have a playable prototype in the next few hours that a real player can test. I can imagine myself working in various fields but I'm always drawn back to games for better or worse. While it's just as likely as a developer you'll incite gamer rage with some small mishap there is also the opportunity to make a piece of entertainment people love and remember. That's the goal I keep striving for in my work.
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