![]() ![]() Rasterization can really be thought of as just drawing individual triangles to the screen and doing further processing on whichever pixels they cover. Rasterization is a more efficient method of determining which polygon a “ray” intersects, but it is limited to the rays which correspond to on-screen pixels with their origin at the in-game camera, rather than to any arbitrary ray anywhere in the game world. ![]() Ray Tracing is an expensive process (even now) but in the times before Ray Tracing there was another, cheaper industry standard rendering process known as rasterization. We will sometimes refer to this process as “sampling” the environment because it can be thought of loosely as going out and searching for a piece of the game world to take a sample of. The closest of those polygons to the origin of the ray will be the surface that the light ray illuminates. Therefore, a “Raytrace” should be thought of as sorting through the scene’s geometry data to find which polygons lay in the path of a specific light ray. In other words, while processing each pixel you may wish to search through a very large data set (the full collection of polygons comprising the scene’s geometry) to determine which of these many triangles to do further processing on. The search, in this case, is searching for which polygon that each ray intersects with. Scenes in video games are comprised of many triangles (polygons) located arbitrarily throughout a 3D environment. You can demonstrate this to yourself with a simple laser pointer.Ī “Trace”, in this context, is a type of search. Light travels in straight lines until it hits something, this is why we have the term light rays. Let us start, however, with a definition of Ray Tracing so as to be a bit more specific about what exactly we are referring to.Ī “Ray” is a straight line in 3D space. In general, in this first section, we will be discussing rendering technologies from long before Ray Tracing hardware (and by extension real-time Ray Tracing itself) became available to us. And the rest is then available as a follow-up article with beautiful things we all cards, all resolutions, various findings and details and of course tons of chart graphics until the Uncle Doctor comes.In order to explain these new features in detail, it is necessary to first review how the original RTGI implementation worked at launch, and for that we will need to go much further back into gaming history, to establish a few basic points about traditional game lighting in general. Yes, you can gamble it without RTX, it's just a demanding treat.īut with the price-only feature set from Jensen's pixel kitchen, everything looks a bit nicer, more muddy, scary, whatever. It's fun to play Metro Exodus and that's all that matters. But these are peanuts and the game also looks much more finished than the permanent construction site Battlefield V. Almost because various in-game bugs are still waiting for the digital patch. Really goosebumps ambience instead of sterile catalog feeling, 4A Games has actually done almost everything right with Metro Exodus. Metro Exodus Screenshot 2019.02.12 - 01.10.50.98įor all those who want the whole thing again as a private address with sound, I have everything as a video, including the benchmark scene I quickly pressed the rest of the screen into a gallery and don't worry, supplies will soon be delivered free of charge! This fog works as it should and sometimes you really don't know where is up, down, back and front. It's not the travel catalog view from Battlefield V during the day, but it's handsome enough to like the game somehow. After all, even the rubble feeling can still score points with the appropriate lighting: This isn't all a highly polished shop window stuff like in Battlefield V (where, please, are there still reflective floors in destroyed houses in the war?), but it's more oriented towards reality. RTX On? But i don't like it.īefore I write you my conclusion in the specifications of the titles to be played in 2019, I have put together a few screenshots from the game as an alcohol-free appetite stimuour. But this first part says a lot and of course there are great pictures. ![]() Today's first look at performance focuses specifically on the impact of these two features, for the details with all the maps I intentionally took more time, because it's worth looking at twice. Metro Exodus is THE hotly anticipated game thanks to the support of Nvidia's ray tracing and DLSS features. ![]()
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