游戏引擎——Unreal

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NVIDIA 和 Epic Game 合作 Unreal Engine 4 纳入 NVIDIA GameWorks VR 技术

　　NVIDIA（辉达）宣布，和 Epic Games 合作将旗下包括 Multi-Resolution Shading VR SLI 在内的技术整合到 Unreal Engine 4。 数百款 PC / 游戏主机采用 UE4 技术作为运算引擎，并成为一项关键工具以打造各种类型的高临场感体验。

　　NVIDIA GameWorks VR 将为这些创作者带来新一代的虚拟现实体验，像是开发者，他们将获得所需的工具，创造出让数百万人们能享受的各种虚拟现实体验。

Multi-Resolution Shading（MRS)

　　NVIDIA Multi-Resolution Shading 是 NVIDIA GameWorks VR 内建众多技术的其中一项，搭配虚拟现实头戴屏幕，融入更多效能至产品中呈现给用户。

　　此技术提高人眼聚焦的影像中央区域的分辨率，并调降鲜少聚焦的图像边缘的分辨率。 由于虚拟现实头戴屏幕会「弯曲或扭曲边缘区域的影像」MRS 能在避免牺牲影像质量的同时节省绘图运算的负荷。

　　在日前于旧金山登场的 VRX 2015 大会中展出的UE4作品《Reflection Subway》，可从中观察到这项 GameWorks VR 技术将能协助虚拟现实开发者，让采用 UE4 技术的虚拟现实游戏与应用程序的效能提高 50%。

解决虚拟现实的发展难题

　　由于虚拟现实所需的运算资源相当庞大，开发者势必极尽所能取得最多效能。 事实上，若要营造高临场感的虚拟现实体验，所需耗用的效能比一般 PC 平台 1080p 分辨率游戏多出 7 倍。 因此若要实现虚拟现实的愿景，首要步骤即是要求具备 VR 功能的 PC 累积够多的装机量。

　　NVIDIA 透过如 GeForce GTX 970 显示适配器的产品，以及包含 Multi-Resolution Shading 的效能强化技术，致力于将虚拟现实所需的效能导入更多的 PC 中。 藉由整合 GPU 与软件，预估搭载 GeForce 核心支持虚拟现实的 PC 装机量于 2020 年从现今的 500 万台成长到超过 1.3 亿台。



NVIDIA GameWorks VR 技术让采用 UE4 技术的虚拟现实游戏与应用程序的效能提高 50%

　　搭载 GeForce 核心的高效能 PC 一旦累积庞大的装机量，便奠定了扎实的基础以创造各种令人惊艳的高产品价值虚拟现实体验。 NVIDIA 和整个虚拟现实产业体系合作，让这些经验得以实现，包括制造头戴装置、输入与追踪装置、撷取与串流技术、应用程序、以及软件引擎等各领域的厂商，将各种不同的应用带入众多平台与商店。

在客厅也能攀登圣母峰

　　来自冰岛雷克雅未克的 Sólfar 工作室与 RVX 工作室共同开发能用视觉攀登圣母峰顶端的 VR 技术 EVEREST VR。 RVX 工作室运用 NVIDIA GeForce GTX TITAN X 绘图处理器（GPU），
超过三十万张高分辨率的圣母峰照片透过 GPU 加速 3D 点云技术，产生 3D 网格及材质，制成拟真效果极高的圣母峰 3D 模型。 而 NVIDIA 与 Sólfar 工作室合作，将包含 VR SLI Multi-Resolution Shading 等 GameWorks VR 技术整合在一起，应用搭载 NVIDIA GeForce GTX 970 绘图处理器（GPU）支持虚拟现实的 PC 以及透过 GeForce GTX TITAN X 应用的 SLI 。 这些应用所带来的虚拟现实体验相当惊人。



Sólfar 工作室与 RVX 工作室采用 NVIDIA GameWorks VR 技术共同开发 VR 技术 EVEREST VR


　　EVEREST VR 预计于 2016 年推出至虚拟现实平台上。

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游戏引擎 Unreal Engine 4 的 10 款展示影片整理

　　Unreal Engine 是一款由 Epic Games 开发的游戏引擎，首次亮相是在 1998 年的《魔域幻境 浴血战场》，而接着 Unreal 2 则是发布在 2002 年，再来 2004 年推出 Unreal 3 引擎，同时也是目前最常见到的游戏引擎之一。

　　Epic Games 副总裁表示，其实早在 2003 年就一直有在发展 Unreal 4 引擎，2012 年的游戏开发者大会公布了一段实时运算的影片，当时给人相当震撼的画面表现，不过当时据说使用的 PC 主机是 NVIDIA 的卡王 GTX 580，且采用三张显示适配器 SLI 运算。

　　到目前为止，Unreal 4 都是免费的，任何人都可以下载它，用户可以用于游戏等各方面的开发，像是建筑、VR、电影、动画、教育等，只有作品超过 3000 美元的收入后，才需要支付 5% 的版权费。

　　在经过了三年，笔者整理了从 Unreal 4 发布开始至今的十款 Unreal 4 引擎打造的 DEMO，让各位玩家体验一下 Unreal 4 的魅力。


静态建筑类
1. Realistic Rendering

除了拿来开发游戏外，目前也应用在建筑跟室内设计上。

   

2. Lucid Arch Dreams

不管是光影效果还是游戏贴图，乍看之下逼真度简直破表，给玩家以假乱真的画面，除了建模外，静态光影跟反射也相当逼真。

   

3. Temple Mobile

场景的材质很突出，火焰跟反射的效果让人惊艳，营造出了很典雅的韵味。

   

4. Reflections

故意将场景做成残破不堪的感觉，在影片中可以看到光影效果非常逼真。

   

互动游戏类
5. Landscape Mountains

玩家操控滑翔翼在空中遨游，从影片中可以感受到非常真实的光影表现。

   

6. Vehicle

这 DEMO 算是竞速游戏，主要还是展示尘土飞扬的效果。

   

动态电影类
7. Elemental

这个 DEMO 是官方的正式宣传 DEMO，虽然已经有一两年了，不过放到现在仍有相当高的水平，其中 PHYSX 流体粒子特效，让物体跟碎石有很逼真的运算。

   

8. Matinee

主要是利用 Unreal 4 制作成电影，从影片可以看到角色间的动作、打斗、碰撞、机器人上的金属反射都很真实。

   

9. Effects

场景在山洞里面，不过场景中包含了火焰、水、雪等，各种特效，可以说是相当均衡的一个 DEMO 有着以假乱真 3A 大作级的水平，希望往后的游戏都有如此的水平。

   

10. 男孩与他的风筝

这个 DEMO 制作出了一个非常美丽且面积达 100 平方英里虚拟大陆，画面都是采用实时演算且稳定在每秒 30 张的帧数，其中还有逼真的 HDR 反射、全局光照技术、动态模糊、景深，甚至还有 1500 万棵植物。

   

以上这十款，都有着非常不错的水平，声光效果都有着让玩家惊艳的感觉，各位是不是都觉得 Unreal 4 是个很强大的引擎呢！？

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Unreal Engine Sizzle Reel 2016
Epic 曝光 GDC 宣传影片 集结《Final Fantasy VII 重制版》等多款游戏画面

　　迎接 2016 游戏开发者大会登场，Epic Games 刚刚公开了「2016 GDC」宣传影片，藉由众多游戏来展示旗下 Unreal Engine 4 的技术。

　　在宣传影片中，结合了包括《Final Fantasy VII 重制版》、《王国之心 3》、《地狱之刃》、《战争机器 4》等游戏画面，让玩家观看这些采用 Unreal Engine 4 所制作、目前已经上市或未来即将上市的游戏风貌。

   

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Epic Games Releases $12 Million Worth of Paragon Assets for Free
Epic Games 免费释出造价 1200 万美元《典范 Paragon》游戏资源供开发者使用
转载 - 巴哈姆特（https://gnn.gamer.com.tw/9/160369.html）

　　Epic Games 旗下第三人称视角的战斗竞技游戏《典范 Paragon》虽然将于 4 月 26 日关闭，但佛心的 Epic Games 决定免费开放建造耗资 1200 万美元的《典范》游戏资源给 Unreal Engine 4 开发者使 用。

　　Epic Games 表示，《典范》这些资源建造成本超过 1200 万美元，包括 20 个 AAA 级质量的角色，其各自的造型、动画、特效与对话等，还有《典范》中 1500 个环境对象等。

　　Epic Games 指出，游戏开发者可以在自己的 UE4 项目中使用这些资源、没有任何附带条件，想要使用这些资源的开发者可以在 Unreal Engine Marketplace 免费下载。

   

Epic Games Releases $12 Million Worth of Paragon Assets for Free

Epic Games today announced that Unreal Engine 4 developers now have access to a full array of assets from Paragon, the company’s high-end multiplayer online battle arena game. The assets, built at a cost of over $12 million, include 20 AAA-quality characters, with their respective skins, animations, VFX and dialogue, along with over 1,500 environment components from Paragon. This content is now available free of charge in the Unreal Engine Marketplace, where developers may download Paragon packs to use in their own UE4 projects.

For those interested in importing Paragon characters into their projects, Epic recommends starting with Shinbi, who comes with an animation Blueprint. This can be used as a framework for animating the other characters in the Paragon packs. Epic is also shipping a sample map that is handy for testing and can be used as a baseline for creating more customized environments.

Available Paragon assets include:

• Characters: 20 Paragon Hero characters will be initially available including all skins for distinct character variants. The release also includes base meshes, thousands of textures, VFX and animation cycles, and dialogue with hundreds of sound cues. The character Shinbi comes with an animation Blueprint which can be tailored to specific needs. Epic sends special thanks to OTOY and 3D Scan Store for granting permission to keep intact the high-quality character materials using their facial and body scanning technologies as part of this release.

• Environments: The Paragon release includes over 1,500 environment assets created for the Agora and Monolith maps, including a sample map for developers to use and customize as desired.

• More to Come: Epic will release millions of dollars worth of additional Paragon asset packs beyond the initial $12 million offering through spring and summer 2018.

For more information and to register for updates, visit unrealengine.com/paragon.

Visit the Paragon Asset Release forum thread for additional technical guidance on how to get started using the Paragon assets in Unreal Engine 4.

https://www.unrealengine.com/en- ... gon-assets-for-free

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Epic Games Demonstrates Real-Time Ray Tracing in Unreal Engine 4 ~ Star Wars Demo
用虚幻4引擎拍《星球大战》！视觉效果已接近真实世界！

　　在2018游戏开发者大会上，微软和Nvidia分别公布了各自的实时光线追踪技术DirectX 12 DXR和RTX，它们将为游戏业带来更高画面的规格。而Epic Games的虚幻4正是搭载这两项技术的首批游戏引擎之一。今天，Epic Games公布了一段演示Demo，完美展示了什么叫用游戏引擎拍《星球大战》电影。一起来看看吧！

　　这部短片是《星球大战》的搞笑小剧场，两个第一秩序的风暴兵在聊一些闲言碎语，却没注意到身后的法斯玛队长，结果两人最后被罚到冰雪星球站岗。1分多钟的视频虽然没有太多复杂的场景，但却展示了堪称逆天的视觉，它所演示新的实时光线追踪技术，几乎让人看不出这是用虚幻4引擎渲染的实机画面。

　　毫不夸张地说，这部视频展示了游戏画面的未来，它的视觉效果已经非常接近真实世界。不过当然，由于当前的硬件限制，我们还是需要等待几年才能真正在游戏里看到这个效果。

   

Epic Games Demonstrates Real-Time Ray Tracing in Unreal Engine 4 with ILMxLAB and NVIDIA

Epic Games, in collaboration with NVIDIA and ILMxLAB, today gave the first public demonstration of real-time ray tracing in Unreal Engine. Real-time ray tracing is considered to be a holy grail for those creating high-end cinematic imagery, and one that signifies a leap forward in the convergence of film and games.

During today’s “State of Unreal” opening session at the Game Developers Conference (GDC), the three companies presented an experimental cinematic demo using Star Wars characters from The Force Awakens and The Last Jedi built with Unreal Engine 4. The demonstration is powered by NVIDIA’s RTX technology for Volta GPUs, available via Microsoft’s DirectX Ray Tracing API (DXR). An iPad running ARKit is used as a virtual camera to draw focus to fine details in up-close views.

Epic built the computer-generated (CG) scene using assets from Lucasfilm’s Star Wars: The Last Jedi featuring Captain Phasma, clad in her distinctive armor of salvaged chromium, and two stormtroopers who run into her on an elevator on the First Order ship. In the tech demo, lighting is moved around the scene interactively, as the ray-traced effects including shadows and photorealistic reflections render in real time. The stunning image quality of highly reflective surfaces and soft shadows has never before been achieved at such a high level of image fidelity in Unreal Engine.

Next-generation rendering features shown in today’s demo include:

• Textured area lights
• Ray-traced area light shadows
• Ray-traced reflections
• Ray-traced ambient occlusion
• Cinematic depth of field (DOF)
• NVIDIA GameWorks ray tracing denoising





“Ray tracing is a rendering process typically only associated with high-end offline renderers and hours and hours of computer processing time,” said Epic Games Founder and CEO Tim Sweeney. “Film-quality ray tracing in real time is an Unreal Engine first. This is an exciting new development for the media and entertainment linear content worlds—and any markets that require photorealistic visualization.”

"At ILMxLAB, our mission is to create real-time rendered immersive experiences that let audiences step into our stories and connect with cinematic universes that look and feel as real as the ones on the movie screen. With the real-time ray-tracing technology that Epic and NVIDIA are pioneering, we are a pivotal step closer to that goal," says Mohen Leo, ILMxLAB Director of Content and Platform Strategy.

Epic Games worked closely with NVIDIA to support the NVIDIA RTX technology available through the DXR API. Running on an NVIDIA DGX Station, the demo was brought to life via a collaboration between Epic’s dedicated graphics and engine team, NVIDIA’s world-class ray tracing experts and the technical ingenuity and creative artistry of ILMxLAB.

“Real-time ray tracing has been a dream of the graphics and visualization industry for years. It’s been thrilling to work with the talented teams at Epic and ILMxLAB on this stunning real-time ray tracing demonstration,” said Tony Tamasi, senior vice president of content and technology at NVIDIA. “With the use of NVIDIA RTX technology, Volta GPUs and the new DXR API from Microsoft, the teams have been able to develop something truly amazing, that shows that the era of real-time ray tracing is finally here.”

A one-hour deep dive of how this scene was created and rendered will be presented today at 11AM PT in the “Cinematic Lighting in Unreal Engine” at the Yerba Buena Center for the Arts Theater and livestreamed to /UnrealEngine on YouTube, Facebook and Twitch.

The scene is running in real time at NVIDIA’s GDC booth, South 223, where show attendees can observe the content in Playback, Lit, Ray Tracing and Wireframe modes.

Epic Games will make support for NVIDIA RTX technology using the DXR API available to Unreal Engine developers later this year.

unrealengine.com

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