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[nVidia] NVIDIA DLSS: Control and Beyond

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post #1 of 18 (permalink) Old 08-31-2019, 03:26 PM - Thread Starter
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[nVidia] NVIDIA DLSS: Control and Beyond

Source: https://www.nvidia.com/en-us/geforce...ol-and-beyond/

Quote:
An Image Processing Approach to Super Resolution

One of the core challenges of super resolution is preserving details in the image while also maintaining temporal stability from frame to frame. The sharper an image, the more likely you’ll see noise, shimmering, or temporal artifacts in motion.

During our research, we found that certain temporal artifacts can be used to infer details in an image. Imagine, an artifact we’d normally classify as a “bug,” actually being used to fill in lost image details. With this insight, we started working on a new AI research model that used these artifacts to recreate details that would otherwise be lost from the final frame.

This AI research model has made tremendous progress and produces very high image quality. However, we have work to do to optimize the model's performance before bringing it to a shipping game.

Leveraging this AI research, we developed a new image processing algorithm that approximated our AI research model and fit within our performance budget. This image processing approach to DLSS is integrated into Control, and it delivers up to 75% faster frame rates.

More Innovation To Come

The increasing computing demands of next generation, ray-traced content requires clever approaches, such as super resolution, to deliver great frame rates. The new DLSS techniques available in Control are our best yet. We’re also continuing to invest heavily in AI super resolution to deliver the next level of image quality.
DLSS isn't going anywhere anytime soon and it just keeps getting better!

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post #2 of 18 (permalink) Old 08-31-2019, 03:42 PM
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I am trying all kind of setting in Control and doing DLSS + 4K is really no different than 4K + 1440p Render Resolution. RT kills IQ on high resolutions.

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post #3 of 18 (permalink) Old 08-31-2019, 04:00 PM
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Control at max settings might not be able to run at 4K at reasonable frame rates on my 2080 Ti but DLSS is not an option for me. It simply looks terrible. I would much rather turn most ray tracing features off and turn down settings a bit than use it as it is implemented in Control (which is admittedly better than DLSS in Metro Exodus).

DLSS 1080p -> 4K is a joke and simply shouldn't exist. This is what Geforce Experience sets Control to use by default on my 2080 Ti. It is so bad I don't understand how this could be their recommend setting if they care about graphics quality at all? Bizzare.

DLSS 1440p -> 4K is playable, obviously lower resolution but at least not unplayably terrible. Frame rates are not great with all ray tracing enabled but playable for this type of game. Turning off a couple of ray tracing features and a few settings makes it fine, with ~60 fps most of the time.

However, turning on only one or two ray tracing features (not including reflections) along with enough other settings to get ~60 fps looks much better to me. The loss of texture detail and general blurriness of DLSS ruins it more than the higher settings help. This is another strong example why I really wish there was a way to use DLSS only for AA, without upscaling.
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post #4 of 18 (permalink) Old 08-31-2019, 04:16 PM
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Quote: Originally Posted by Asmodian View Post
Control at max settings might not be able to run at 4K at reasonable frame rates on my 2080 Ti but DLSS is not an option for me. It simply looks terrible. I would much rather turn most ray tracing features off and turn down settings a bit than use it as it is implemented in Control (which is admittedly better than DLSS in Metro Exodus).

DLSS 1080p -> 4K is a joke and simply shouldn't exist. This is what Geforce Experience sets Control to use by default on my 2080 Ti. It is so bad I don't understand how this could be their recommend setting if they care about graphics quality at all? Bizzare.

DLSS 1440p -> 4K is playable, obviously lower resolution but at least not unplayably terrible. Frame rates are not great with all ray tracing enabled but playable for this type of game. Turning off a couple of ray tracing features and a few settings makes it fine, with ~60 fps most of the time.

However, turning on only one or two ray tracing features (not including reflections) along with enough other settings to get ~60 fps looks much better to me. The loss of texture detail and general blurriness of DLSS ruins it more than the higher settings help. This is another strong example why I really wish there was a way to use DLSS only for AA, without upscaling.
I have a big problem with character hair/face. It looks jagged and blurry. I have not seen anything like this in a game. Adding RT makes it worse. I actually do not care about fps. If I max everything out I get 25-30 fps. Sure it's low but its proof of concept. Even then I am not happy with the results.

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post #5 of 18 (permalink) Old 08-31-2019, 04:53 PM
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That seems to be the working consensus. Yeah it's pretty when not really playing, but while in action the performance tanks so badly it's not worth it and dlss is not quite there enough to make the performance gains from up-scaling work.
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post #6 of 18 (permalink) Old 09-03-2019, 07:50 AM - Thread Starter
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Quote: Originally Posted by maltamonk View Post
That seems to be the working consensus. Yeah it's pretty when not really playing, but while in action the performance tanks so badly it's not worth it and dlss is not quite there enough to make the performance gains from up-scaling work.
nVidia is addressing the issue and making phenomenal progress.

TechRadar: Nvidia’s DLSS fine-tuning improves Control performance on RTX graphics cards

https://www.techradar.com/news/nvidi...graphics-cards

Quote:
Nvidia further notes that one of the core challenges with implementing super resolution is to preserve detail levels without suffering any motion-related artifacts. In other words, particularly with sharper images and details, when moving around in-game, nasty shimmering effects or other unwanted noise can blight the image quality.

And as you spend most of the game moving around – rather than standing still staring at the pretty ray traced graphics, although that might happen occasionally – this is certainly an issue.

Nvidia’s solution to tackling this problem came from an interesting angle in that the company actually came across certain artifacts that would normally be classified as bugs, but it turns out they could counterintuitively be used to fill in lost image details.

And using this insight, Nvidia began working on a new AI research model, with which it has “made tremendous progress [with] and produces very high image quality.” The company adds: “However, we have work to do to optimize the model’s performance before bringing it to a shipping game.”

However, what Nvidia has done is used this AI research to develop a new image processing algorithm within its current performance means, and this is what’s been built into Control’s implementation of DLSS.

With a major impact, no less, with Nvidia saying that the new approach delivers up to 75% faster frame rates, a bold claim indeed.

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post #7 of 18 (permalink) Old 09-03-2019, 08:26 AM
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That does not read like they're using DLSS in Control. Reads like they developed a new upscaling algorithm from their DLSS research.
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post #8 of 18 (permalink) Old 09-03-2019, 08:30 AM - Thread Starter
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Quote: Originally Posted by PlugSeven View Post
That does not read like they're using DLSS in Control. Reads like they developed a new upscaling algorithm from their DLSS research.
DLSS stands for deep learning super sampling. It was expected to use a different algorithm.

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post #9 of 18 (permalink) Old 09-03-2019, 08:48 AM
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https://www.nvidia.com/en-us/geforce...-dlss-out-now/

scroll down - pretty far:
Quote:
Accelerate Performance With NVIDIA DLSS

NVIDIA has made great strides in improving the performance of ray tracing, optimizing game engines, game content, and our own drivers. Nevertheless, simultaneously enabling a multitude of complimentary ray-traced effects will be performance-intensive.

To ensure you can experience these breathtaking effects at smooth, enjoyable framerates, we’ve added NVIDIA DLSS to Control, increasing performance by up to 74% in our testing:

[PR benckmark]

To provide extra flexibility, Control’s DLSS includes a new option that allows users to select the underlying target render resolution -- effectively a DLSS quality knob. Upon selecting NVIDIA DLSS in the settings menu, users can choose from one of two Render Resolutions. The lower of the two provides the biggest performance boost, while the other, shown in our benchmarks above, emphasizes higher image quality. This flexibility allows gamers to tune to their preferred experience.

Remember the golden rule of statistics: A personal sample size of one is a sufficient basis upon which to draw universal conclusions.
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post #10 of 18 (permalink) Old 09-03-2019, 09:00 AM
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Quote: Originally Posted by WannaBeOCer View Post
DLSS stands for deep learning super sampling. It was expected to use a different algorithm.
Thank you captain obvious.
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