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[新闻] 地铁逃离开发者证实，目前光追游戏的目标是做到1080P+60帧

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1^# 大中小发表于 2018-8-26 03:54 只看该作者

RTX20系的光追性能还是太差了，第一代不出所料的还是挤牙膏，4k+光追特效火力全开+至少60帧才是真正目标

https://www.rockpapershotgun.com ... o-exodus-interview/

RPS：你是否发现当你开启光线追踪时，游戏的性能会受到很大影响？
Archard：这就是麻烦，我们正在开发并优化它。我们已经有了现有系统的现有引擎，因此直接比较并不公平。是的，当你第一次这样做并且你以一种天真的方式实现它时，它更昂贵，它更慢。但如果你优化，是的，你可以到达那里。你得到帧速率，这就是我们一直在尝试的。实际上说最后的差异是什么，我不能，因为我们还没有完成。

RPS：你有一个粗略的目标吗？
Archard：我们总是会推动60 [fps]，但我们会看到我们得到的东西。显然，那里有三张卡片，我们将看到我们可以获得的每张卡片。

RPS：1080p？
Archard：是1080p，是的。这就是目标，但显然我们会看到它的发展方向。

RPS：我想仍然会有很多人在没有RTX卡的情况下玩Metro Exodus。你现在必须有效地迎合两个不同的硬件分支吗？
Archard：实际上，不，我的意思是它仍然是相同的引擎。我们已经在4A开发了多年，并且仍然有一整套技术，所有传统的东西。RTX是一个额外的功能 - 它是工具箱中的另一个工具 - 但不是，现有的引擎仍然存在，它仍然有传统的全局照明和许多仍然看起来令人难以置信的东西，[RTX ]是我们最近作为一项功能实施的新功能。RTX并不是对游戏开发方式的彻底改革。这是适合它的东西。这就是为什么它如此之大 - 它既简单又好，可以获取现有数据并以另一种方式表示它。

在办公室里，我主要使用的是GTX 970，这种技术运行顺畅，而且设置很高，所以我们 - 我们有一个可扩展的引擎。传统硬件非常适用，但同时我们也在不断实现这些新功能，这些功能正在解决硬件问题。

RPS: Have you found the game’s performance takes much of a hit when you turn ray tracing on?

Archard: That’s the trouble, we’re developing it and optimising it. We’ve got an existing engine with the existing systems, so a direct comparison isn’t really fair. Yeah, when you first do it and you implement it in a naïve way, it’s more expensive, it’s slower. But if you optimise, yeah, you can get there. You get it up to frame rate and that’s what we’ve been trying out. Actually saying what the final difference is, I can’t, because we’ve not finished.

RPS: Do you have a rough target in mind?

Archard: We’re always going to be pushing 60[fps], but we’ll see what we get. Obviously, there’s three cards there and we’ll see what profiles we can get for each.

RPS: At 1080p?

Archard: It is 1080p, yes. That’s the goal, but obviously we’ll see how it goes.

RPS: I imagine there will still be a lot of people playing Metro Exodus without an RTX card, though. Is it the case that you’ve now got to effectively cater for two different branches of hardware?

Archard: Realistically, no, I mean it’s still the same engine. We’ve developed it at 4A for years and years and there’s still a whole suite of technology, all of the traditional stuff. The RTX is an extra feature that’s a part of that – it’s another tool in the toolbox sort of thing – but no, the existing engine is still there, it’s still got traditional global illumination and lots of things that still look incredible, and [RTX] is the new thing we’ve recently implemented as a feature. RTX is not an overhaul of the way you develop games in general. It’s something that fits in alongside it. That’s why it’s so great – it goes in nice and easy, takes your existing data and just represents it in another way.

In the office, I’m working on mostly a GTX 970 for many techniques that run smoothly on that, and that’s on high settings, so we – we have a scalable engine. Legacy hardware works great on it, but also at the same time we’re constantly implementing these new features that are tackling the hardware as it’s coming out.