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Guru3D.com » News » Remedy Shows RTX Raytraing performance cost

Remedy Shows RTX Raytraing performance cost

by Hilbert Hagedoorn on: 10/17/2018 03:41 PM | source: golem | 84 comment(s)
Remedy Shows RTX Raytraing performance cost

Remedy has shown how much Raytracing in their Northlight engine costs on the frame rates on a Turing graphics card. Even the Geforce RTX 2080 Ti loses double-digit fps in complex 1080p effects.

Thus far, there is no game available that contains ray tracing effects under Direct3D or Vulkan - Battlefield 5 however will be released in November 2018. A  presentation by Remedy Entertainment, the developers of Max Payne and Alan Wake and most recently Quantum Break: Das Studio integrates raytracing into its own Northlight engine for Control, the next game of the Finns. At GTC Europe 2018, they explained how certain effects affect the 1080p resolution frame rate.

Shown was a test scene created with the Northlight engine, which features, among other things, a wet marble floor and a lot of detailed furniture and can also demonstrate the benefits of global lighting. Specifically, Remedy experimented with contact and sun shadows, with reflections and with a so-called Indirect Diffuse Illumination. The Finns used a Geforce RTX 2080 Ti (test) and rendered the demo with 1920x1080 pixels.

Very noticeable is the higher scene quality with raytracing, for example, the shadows are cleaner and, above all, the reflections are independent of the camera angle, and the global lighting does not show any rendering errors such as banding.

  

 

However, the cost is significant: the contact and sun shadows calculated with two beams per pixel, including noise rejection, together require 2.3 ms per frame and the reflections a whopping 4.4 ms. Global denoising lighting extends the rendering process by another 2.5ms. This is a total of 9.2 ms per frame and thus an almost one-third higher computational overhead if we take 30 frames per second as the basis (42.2 ms instead of 33 ms per frame).

Of course, these are pretty early experiments without explicit tweaking, as it is a demo and not a finished game. Nevertheless, the presentation gives an impression of the advantages and disadvantages of raytracing. Watch the video from



Remedy Shows RTX Raytraing performance cost Remedy Shows RTX Raytraing performance cost Remedy Shows RTX Raytraing performance cost




« Cooler Master C700P Carbon Chassis - Five Pieces Only · Remedy Shows RTX Raytraing performance cost · ZOTAC Launches MEK Ultra Line of Gaming Desktops »

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warezme
Senior Member



Posts: 208
Joined: 2007-05-26

#5597365 Posted on: 10/17/2018 03:56 PM
Waaaahhh..., I remember it taking me hours to render one frame of a scene that looked like this in Studio Max on my CPU.

H83
Senior Member



Posts: 3375
Joined: 2009-09-08

#5597373 Posted on: 10/17/2018 04:35 PM
The graphics look very nice, specially the shadows and lighting, the objects reflecting the lights look amazing although no one is going to notice them on most games. But there are 2 things that look off: the sunlight always seems to bright and the textures of some objects seem very "grainy".
As for the performance, a FPS counter would be useful...

chispy
Senior Member



Posts: 8932
Joined: 2006-10-29

#5597382 Posted on: 10/17/2018 04:52 PM
Nice looking demo , i'm all in for this new tech :). I cannot wait to see this on it's full glory , a few years from now games at 4K , HDR and full RTC would look amazing.

Caesar
Senior Member



Posts: 1252
Joined: 2015-06-18

#5597385 Posted on: 10/17/2018 04:56 PM
Looks like "film grain" effect.

The amount of time it takes to render a FULL FRAME = 9.2 milliseconds.... (Impressive)


1,000 Milliseconds = 1 Second


For 60 Frames Per Second, a full frame will cost approx 16.67 Milliseconds.

So,........ to make calculations on shadings and lighting effects, it "costs" less time! :confused:

bigfutus
Senior Member



Posts: 530
Joined: 2003-11-22

#5597392 Posted on: 10/17/2018 05:12 PM
Strange noise many surfaces and i don't like the flickering sparkles. In few years when it matures enough, it will be good.

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