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• ID : Q619942

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1. In an obvious approach to ray tracing, light rays emanating from a source are traced through their paths until they strike the viewer.
2. What is ray tracing?
3. Ray tracing, which has long been used for non-real-time rendering, provides realistic lighting by simulating the physical behavior of light.
4. Ray tracing calculates the color of pixels by tracing the path that light would take if it were to travel from the eye of the viewer through the virtual 3D scene.
5. It is expected that many use cases will employ hybrid renderers which combine rasterization and ray tracing, so tight integration with an existing rendering API is very important.
6. Ever since Nvidia Turing was announced back at Gamescom 2018 , ray tracing has been the talk of the town.
7. So, what even is ray tracing?
8. However, because ray tracing works by simulating and tracking every ray of light produced by a source of lighting, it kind of takes a lot of horsepower to actually render.
9. These days, ray tracing is actually achievable in PC games, and yet the biggest titles to implement this technology only use it in limited ways, like rendering realistic reflections or shadows.
10. Ray tracing is a lighting technique that brings an extra level of realism to games.
11. A good graphics card can use ray tracing to enhance immersion, but not all GPUs can handle this technique.
12. Games without ray tracing rely on static “baked in” lighting.
13. Ray tracing in games attempts to emulate the way light works in the real world.
14. Ray tracing achieved buzzword status at this week’s Electronic Entertainment Expo.
15. Simply put, ray tracing is a technique that makes light in videogames behave like it does in real life.
16. First conceptualized in 1969, ray tracing technology has been used for years to simulate realistic lighting and shadows in the film industry.
17. This newfound excitement around ray tracing comes just as home gaming hardware is on the cusp of being able to process lighting effects in real time.
18. GPU NVIDIA RTX and some GTX series cards with DXR support using the latest device drivers.
19. To enable Ray Tracing, Support Compute Skincache must be enabled for the project.
20. An alternative ray tracing based global illumination global illumination method using a final gather-based technique has been developed that seeks to give back some runtime performance.
21. Ray Tracing in your scene.
22. Ray tracing is capable of simulating a variety of optical effects, such as reflection and refraction, scattering, and dispersion phenomena (such as chromatic aberration).
23. Path tracing is a form of ray tracing that can produce soft shadows, depth of field, motion blur, caustics, ambient occlusion, and indirect lighting.
24. The history of computerized ray tracing for image rendering basically tracks the development of computer hardware.
25. In Goldsein’s and Nagel’s paper, “3-D Visual Simulation”, ray tracing is used to make shaded pictures of solids by simulating the photographic process in reverse.
26. GeForce RTX 30 Series GPUs deliver the performance and image quality necessary to give your audience your best—every time.
27. one of the most elegant and versatile algorithms is called ray tracing.
28. Fancier versions of ray tracing can create more subtle effects, like soft shadows and variations in lighting that helped to create different moods.
29. The ray tracing process leads to a bunch of other questions, like how are intersection points determined?
30. In this first exercise, you can practice some ray tracing yourself.
31. In its simplest form, ray tracing is a system that's used to enhance the lighting in games.
32. When ray tracing is fully implemented, you often won't even notice what's happening unless you're paying really close attention as it's part of the whole picture of a graphically stunning environment.
33. When ray tracing was first announced it was only open to gamers with the latest Nvidia graphics cards in their gaming machines.
34. Only the RTX 20-series cards were capable of supporting ray tracing and DLSS.
35. Cyberpunk 2077 is without doubt one of the biggest ray tracing games that’s ever been released on PC, and it should come as no surprise that it’s also one of the most demanding.
36. Indeed, if you’ve been searching for an excuse to show off your new Nvidia RTX card, this is definitely the game you’ve been waiting for.
37. In this Cyberpunk 2077 ray tracing guide, we’ll cover: Ray tracing performance We’ve tested every Nvidia RTX card to see how they cope with Cyberpunk 2077’s RT effects.
38. Ray tracing PC requirements What you’ll need to run Cyberpunk 2077 with ray tracing enabled.
39. Ray tracing sends out rays from the viewer (the screen) into the scene, onto objects and from there to the light source.
40. Shining a Light on Ray Tracing”.
41. Chaos Vantage requires an NVIDIA RTX series GPU.
42. Many of today’s hottest games like Cyberpunk 2077 and Control make heavy use of ray tracing technology.
43. Ray tracing can produce much more realistic lighting, but it requires powerful graphics processing — just ask Cyberpunk players how much ray tracing can slow down a game.
44. So surely, a game console from the 90s couldn’t support ray tracing, right?
45. Today, ray tracing is used to render scenes by simulating the path of light as pixels in a 3D space.
46. Minecraft’s blocky aesthetic was massively spruced up with the introduction of ray tracing enabled by Nvidia’s RTX graphics cards earlier this year.
47. If you missed the beta or other examples in 2020, ray tracing allows for realistic, physics-based lighting in games.
48. Along with lighting, RTX ray tracing also allows for more detailed “physically-based rendering” (PBR) in texture packs, including the ability to set the relative reflectiveness of each object.
49. Using artificial intelligence to save time rendering high-resolution images, RTX 2060 owners can get around 60 frames per second playing at 1920 x 1080 resolution in Nvidia’s Quality Mode.
50. Ray tracing and Deep Learning Super Sampling (DLSS) are technologies NVIDIA added to its GPUs, starting with the RTX 20 series, to improve the visual fidelity of supported games.
51. Ray tracing is a rendering technique that creates a 3D image by calculating how virtual light rays hit various surfaces.
52. It's what NVIDIA is using to make ray tracing have less of a negative impact on performance.
53. On paper, ray tracing, DLSS, and other improvements NVIDIA is attempting to add to its GPUs are great for PC gaming ...
54. Vulkan SDK shipping today with ray tracing support including Validation Layers.
55. The Khronos Vulkan Ray Tracing Task Sub Group (TSG) has developed and released a set of extensions that seamlessly integrate ray tracing functionality into the existing Vulkan framework.
56. The Ray Tracing TSG was formed in early 2018 and tasked to bring a tightly integrated, cross-vendor, ray tracing solution to Vulkan.
57. In March 2020, the provisional ray tracing extensions were released to gather public review and input into the final design of these extensions.
58. The term ray tracing refers to an algorithm to calculate images.
59. Before the development of ray tracing, the so-called rasterization was used.
60. The RTX graphics cards from Nvidia enable real-time ray tracing and are therefore suitable for PC games.
61. The previously mentioned Nvidia Turing graphics cards, i.e. the RTX-2000 models, were specially developed for ray tracing (hence the “R” in “RTX”).
62. Unity’s real-time Ray Tracing realistically simulates how light behaves and interacts with physical objects and materials in your scenes.
63. The High Definition Render Pipeline (HDRP) includes ray tracing support and hardware acceleration, allowing you to take into account reflections from all objects, even when they’re off-screen.
64. Ray tracing is available for DirectX capable devices, such as GeForce RTX GPU and select AMD GPUs.
65. The launch of AMD Radeon RX 6000 Series graphics cards on November 18 will end NVIDIA’s monopoly on real-time ray tracing.
66. Real-time ray tracing is incredibly demanding.
67. Despite the advances in GPU performance, the demands are still too high for a game to rely on ray tracing alone.
68. Along similar lines, Epic’s Unreal Engine is on the bleeding edge of supporting real time ray tracing.
69. It’s 4.22 release in early 2019 finally brought ray tracing to users of the engine, enabling game developers to test it out with their titles.
70. Working with ray tracing from a development perspective is exciting, especially for someone like myself.
71. Unreal Engine’s current implementation allows users to set a roughness limit via a ‘Max Roughness’ setting in a Post Process Volume for both ray tracing and screen space effects.
72. Although incredibly computation intensive, ray tracing provides the most realistic shadows, reflections and refractions.
73. As a ray tracing person, what caught my eye the most was the performance AnandTech reported in their CineBench benchmarks.
74. OptiX GPU ray tracing APIs.
75. So, I decided to pick up a Mac Mini to do some testing on my own interactive path tracing project, ChameleonRT, and to get it running on the new Metal ray tracing API.
76. ChameleonRT also has an Embree backend for fast multi-threaded and SIMD accelerated ray tracing on CPUs through Embree, ISPC, and TBB.
77. From the very beginning of the development of ODEON ray tracing models known from optics and visual inspection of acoustics were selected and investigated as basis for room acoustic simulation.
78. The Ray tracing was selected in 1984 instead of similar methods like e.g. cone tracing or beam tracing.
79. In 1995, the Vector based scattering method was implemented in ODEON as a way of combining the scattered and specular directions of reflections during the ray tracing.
80. In 1989 hybrid models were introduced in ODEON to accomodate both the Ray tracing and the Image source method, combining the best features in both methods.
81. Ray tracing is a feature that allows you to access data that is not on screen.
82. While film production uses ray tracing extensively, its resource intensity has limited its use to offline rendering for a long time.
83. Ray tracing hardware acceleration is only available on certain graphics cards.
84. Before you use ray tracing features in your HDRP Project, you need to set up your HDRP Project for ray tracing support.
85. The advanced rendering capability of ray tracing allows new visual and lighting effects previously not possible in Fortnite.
86. The side-by-side screenshots below show how supporting PCs can create lifelike reflections and shadows when ray tracing is enabled.
87. Many phenomena that are difficult or impossible with other techniques are simple with ray tracing, including shadows, reflections, and refracted light.
88. Ray directions, however, have been determined precisely, and this has limited the capabilities of ray tracing.
89. By distributing the directions of the rays according to the analytic function they sample, ray tracing can incorporate fuzzy phenomena.
90. Both of the upcoming next-generation consoles will employ ray tracing rendering support, something that’s only just started to become widely available in the high-end PC gaming world.
91. Unless you have a very powerful PC— say, a machine running a GeForce RTX 2080 Super — you’re not likely to be able to use ray-tracing in a game at 4K, while running at a smooth 60 frames per second.
92. Minecraft got a ray-tracing patch that allows people with GeForce RTX cards to add fancy lighting to the game.
93. It’s the same story for Quake II RTX, a version of the venerable deathmatch game designed for people with GeForce RTX graphics cards.
94. With the announcement of new ray tracing APIs and hardware to support them, developers can easily create real-time applications with ray tracing as a core component.
95. As ray tracing on the GPU becomes faster, it will play a more central role in real-time rendering.
96. Ray Tracing Gems provides key building blocks for developers of games, architectural applications, visualizations, and more.
97. Ray tracing is now within reach of every producer and marketeer, and at prices one can afford, and with production times that meet the demands of today’s fast world.
98. Ray tracing is a rendering technique that aims to simulate the way light bounces off objects, in turn creating more realistic shadows, reflections, and lighting effects.
99. Hollywood uses render farms to calculate ray tracing for scenes since they're working with massive data sets and doing huge numbers of rays for entire scenes.
100. It can take hours or days to render even a short scene in a CG film that uses ray tracing.
101. five months later, the company showed it running on one RTX Quadro card.
102. Minecraft’s ray tracing feature for Windows 10 has made its way out of beta eight months after the feature first became available for testers.
103. The addition of ray tracing support for NVIDIA's RTX graphics cards transforms the sandbox game’s aesthetics into one that’s, well, shinier.
104. To be able to experience what ray tracing adds to the game, you’ll need to run it on a PC with one of NVIDIA’s GPUs that’s capable of ray tracing.
105. In photonics/optical engineering software, ray tracing is a technique used to represent the propagation of electromagnetic (optical) wavefronts through a system.
106. Recently, Ray Tracing has also started to be used in real-time applications such as games.
107. Fortunately, Metal has built in support for Ray Tracing and Denoising.
108. So, we now talked about all of the basic building blocks available in Metal for Ray Tracing and Denoising.
109. As you can see, Ray Tracing gives really great results.

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위키데이터

• ID : Q619942