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Nvidia Announces Real Time Ray Tracing

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  • bluejauntebluejaunte Posts: 2,000

    Some more 

    Eyes still a bit off here and there. But damn, I mean... this is real time. The CG industry has struggled time and tme again getting this done with regular rendering and hours per frame on gigantic render farms.

  • nonesuch00nonesuch00 Posts: 18,795

    Not bad, but what a windbag. 

  • outrider42outrider42 Posts: 3,679

    Yeah, it is quite impressive. The giveaway to me is the skin, its still just a bit too perfect with a fairly uniform gloss over it. That is what gives away most Daz renders, too, the skin is too reflective, or uniformly reflective, as if they are oily or sweaty. Real people are not like that if they are clean. The video with the real Serkis demonstrates this really well, he is not as shiny as his CGI counterpart.

    I am not sure what hardware this is running, it may be the DGX-1 like the Star Wars demo video as all of these came out from GDC. But I don't think you need all of that horsepower to produce this particular scene.

  • notiuswebnotiusweb Posts: 110

    Wondering if RTX will be integrated into Iray, as in, will Iray be an application that uses the RTX feature.  If so, can you imagine realtime raytracing in DAZ...

    Daz 5???

    SIGH....

    I will love this, huge scenes rendering frames in no-time....

    Octane 4 is months away, the denoiser component of V4 is only being tested in the test build release, it does not hav the full Brigade-speed engine.  But even when Octane V4, with Brigade (the high speed engine that is only 40% done...frown), is fully released and working, it will not handle the PBR-MDL material workflow like Iray

  • mikekmikek Posts: 195

    From what we got so far concerning realtime rtx its only used for shadows, ambient occlusion and reflections. The rest is rendered with traditional rasterization. So RTX + Iray wouldn't result in realtime unless rasterization is used for the rest.
    Around 5:48 in this video they show path tracing + optix ai denoising:

  • outrider42outrider42 Posts: 3,679

    Yes, it is something of a hybrid engine. But that might just be good enough. Well, it is good enough, considering Disney has already used Unreal in a couple final production shots from 2 major movies. Now that they have this...I am certain we will see a lot more scenes shot directly with Unreal in their movies. After all, that's why we have a Star Wars demo in the first place, they are fully on board with this tech. It changes everything.

    It looks to me like the AI Denoiser is a big reason why this works.

    Electronic Arts had their own demo, and this one is using DXR, the one Microsoft is using. It is not using Nvidia nor AMD's solution, so this is a nice display of what DirectX12 can be capable of on its own with ray tracing. I think it looks pretty solid, and that is very promising. If this is true, then you may not need a Volta GPU to enjoy ray tracing. You will probably will need a good card, but it wont have to be Volta.

  • mikekmikek Posts: 195
    outrider42 said:

    Yes, it is something of a hybrid engine. But that might just be good enough. Well, it is good enough, considering Disney has already used Unreal in a couple final production shots from 2 major movies.

    True but something which shouldn't be ignored is how difficult it is to reach a certain quality with each of the methods. A big part of daz is about human characters. Good skin and hair are important there but rtx doesn't help with that from what we know so far. It would be nice if they could expand it at some point in the future to SSS materials for skin and such.

    Regarding Volta nvidia supposedly said it should give speedups of several hundred percent against the default DXR but we will have to wait for benchmarks to see whats that about. ( https://www.techpowerup.com/242504/microsoft-releases-directx-raytracing-nvidia-volta-based-rtx-adds-real-time-capability )

  • outrider42outrider42 Posts: 3,679
    mikek said:
    outrider42 said:

    Yes, it is something of a hybrid engine. But that might just be good enough. Well, it is good enough, considering Disney has already used Unreal in a couple final production shots from 2 major movies.

    True but something which shouldn't be ignored is how difficult it is to reach a certain quality with each of the methods. A big part of daz is about human characters. Good skin and hair are important there but rtx doesn't help with that from what we know so far. It would be nice if they could expand it at some point in the future to SSS materials for skin and such.

    Regarding Volta nvidia supposedly said it should give speedups of several hundred percent against the default DXR but we will have to wait for benchmarks to see whats that about. ( https://www.techpowerup.com/242504/microsoft-releases-directx-raytracing-nvidia-volta-based-rtx-adds-real-time-capability )

    Well, we have the Unreal videos with human subjects that are fairly convincing already. They are getting quite close, and I'm not 100% convinced you really need SSS for photoreal skin.
  • nonesuch00nonesuch00 Posts: 18,795
    outrider42 said:

    Yes, it is something of a hybrid engine. But that might just be good enough. Well, it is good enough, considering Disney has already used Unreal in a couple final production shots from 2 major movies. Now that they have this...I am certain we will see a lot more scenes shot directly with Unreal in their movies. After all, that's why we have a Star Wars demo in the first place, they are fully on board with this tech. It changes everything.

    It looks to me like the AI Denoiser is a big reason why this works.

    Electronic Arts had their own demo, and this one is using DXR, the one Microsoft is using. It is not using Nvidia nor AMD's solution, so this is a nice display of what DirectX12 can be capable of on its own with ray tracing. I think it looks pretty solid, and that is very promising. If this is true, then you may not need a Volta GPU to enjoy ray tracing. You will probably will need a good card, but it wont have to be Volta.

    That is awesome!

  • bluejauntebluejaunte Posts: 2,000
    outrider42 said:
    mikek said:
    outrider42 said:

    Yes, it is something of a hybrid engine. But that might just be good enough. Well, it is good enough, considering Disney has already used Unreal in a couple final production shots from 2 major movies.

    True but something which shouldn't be ignored is how difficult it is to reach a certain quality with each of the methods. A big part of daz is about human characters. Good skin and hair are important there but rtx doesn't help with that from what we know so far. It would be nice if they could expand it at some point in the future to SSS materials for skin and such.

    Regarding Volta nvidia supposedly said it should give speedups of several hundred percent against the default DXR but we will have to wait for benchmarks to see whats that about. ( https://www.techpowerup.com/242504/microsoft-releases-directx-raytracing-nvidia-volta-based-rtx-adds-real-time-capability )

     

    Well, we have the Unreal videos with human subjects that are fairly convincing already. They are getting quite close, and I'm not 100% convinced you really need SSS for photoreal skin.

    You do and there is SSS in Unreal: https://docs.unrealengine.com/en-US/Engine/Rendering/Materials/HowTo/Subsurface_Scattering

  • mikekmikek Posts: 195
    edited March 2018
    outrider42 said:

    Well, we have the Unreal videos with human subjects that are fairly convincing already. They are getting quite close

    True but it being possible in a demo scene for a team of specialists doesn't mean a hobbyist artist will do well using the same approach. How much work and knowledge do they have to put in to create the results they get? Not something a average hobbyist will be able to do.
    If they can streamline it in the future for normal artists it would certainly be a great alternative.

    Post edited by mikek on
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