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Iray Turbo Tutorial

N-RArtsN-RArts Posts: 1,603
in The Commons

Hi.

I just wanted to know if this product works with AMD Graphics Cards, or is it just Nvidia?

https://www.daz3d.com/iray-turbo-x2-10-speed-tutorial

Thanks.

 

Comments

  • Matt_CastleMatt_Castle Posts: 3,010
    edited October 2019

    For the sake of clarification, I presume the question here is effectively "Does the guide help speed up CPU-only renders?" (as Iray won't run on AMD cards whatever).

    ~~~~~

    In that respect, I'm also kind of interested in hearing what people thought about this tutorial. I'm not too worried about dropping a couple of bucks on it, but I don't really want to watch through an hour and a quarter of tutorial if it  basically equates to things like "make sure you're rendering with the GPU rather than CPU" or "yes, your scene will take ages to render if you fill the entire thing with SSS fog".

    Post edited by Matt_Castle on
  • N-RArtsN-RArts Posts: 1,603
    edited October 2019
    Matt_Castle said:

    For the sake of clarification, I presume the question here is effectively "Does the guide help speed up CPU-only renders?" (as Iray won't run on AMD cards whatever).

    ~~~~~

    In that respect, I'm also kind of interested in hearing what people thought about this tutorial. I'm not too worried about dropping a couple of bucks on it, but I don't really want to watch through an hour and a quarter of tutorial if it  basically equates to things like "make sure you're rendering with the GPU rather than CPU" or "yes, your scene will take ages to render if you fill the entire thing with SSS fog".

    That's it. That's exactly what I meant ^^' (Sorry, I'm not that great at explaining things).

    I'm rendering in Iray with a CPU. It takes a few hours though. I can only dream of rendering something in 55 minutes (that goes for 3Delight too). 

    Post edited by N-RArts on
  • TaozTaoz Posts: 10,259

    There's an older thread about it here:

    https://www.daz3d.com/forums/discussion/210236/somebody-buy-the-iray-speed-tutorial-and-then-explain-what-it-is/p1

  • N-RArtsN-RArts Posts: 1,603
    Taoz said:

    There's an older thread about it here:

    https://www.daz3d.com/forums/discussion/210236/somebody-buy-the-iray-speed-tutorial-and-then-explain-what-it-is/p1

    Thank you for the link. I've checked out that thread, and bought the tutorial. Thanks for the help. ^^

     

  • SevrinSevrin Posts: 6,313

    I'm kind of curious, and would buy it if there were a PDF, but I've a hard time with DL's videos after a few minutes.

  • simpsonDDS2simpsonDDS2 Posts: 30
    N_R Arts said:

    Hi.

    I just wanted to know if this product works with AMD Graphics Cards, or is it just Nvidia?

    https://www.daz3d.com/iray-turbo-x2-10-speed-tutorial

    Thanks.

    Don't bother with the tutorial. I saw most of it, and it's very dated knowledge that is easily findable on the forums. One of the tutorial videos is dedicated to simply deleting unnesscary props that are not in view, and another explains that the more you light a scene, the quicker it is. And if you've spent even the smallest amount of time researching speeding up Iray, these are easily found and don't require a long video series to explain.

     

    The knowledge might speed up iray a little, but it won't fix common recent problems with Iray where newer version of Daz are just tanking older graphic cards. 

  • davesodaveso Posts: 7,794

    i was kind of disappointed in the whole thing, 

  • mwasielewski1990mwasielewski1990 Posts: 343
    N_R Arts said:

    Hi.

    I just wanted to know if this product works with AMD Graphics Cards, or is it just Nvidia?

    https://www.daz3d.com/iray-turbo-x2-10-speed-tutorial

    Thanks.

     

    Iray only works with Nvidia. Seriously, if you want to improve Iray rendering speed, just sell the AMD and buy a decent Nvidia card instead of the tutorial - much quicker resolution of your problem :) I can totally see why the price tag on 1080ti or the RTX series might be a problem for some people, but if you have a way to monetize your renders (I have), then such video card will be an investment with fairly quick return rate. 

    Apart from this, I might post my own mini-tutorial here on the forum as I work with Iray on a day to day basis and I made hundreds of renders already... My point being, eventually, If you experiment enough, you will find your own ways to save render time. But in short:

    1) Hide unnecessary items

    2) If you render multiple figures/actors in the background, use the same skin texture for each one. It won't look that horrible, and it will save the VRAM of your (future) video card. Less textures - less calculations.

    3) Use the subdivision parameter to decrease geometry on objects/props that you want to be visible, but that are not that important

    4) Despite what people are saying, you can use the Nominal Luminance parameter along with tone mapping if you do it right. Most of the time it will remove fireflies/artifacts completely after as short as ~100-200 iterations

    5) Bump the rendering quality parameter. As stupid as it sounds, I found out that rendering with this set to 300 as opposed to default 1 will slow down rendering of each one iteration, but after a couple of such iterations the resulting image is 100 times better than with default quality after, for example 1000 iterations. In other words, you can achieve the same quality but a bit faster.

    6) Render background in 3Delight and Actors in Iray. not much explanation needed : P

    7) Add more light - the more light, the less time it takes for Iray to compute. Night/dark scenes are a horror in Iray and there's no workaround for that

    I could probably think of more stuff... if I will remember something, I'll update my post :)

  • HavosHavos Posts: 5,581
    mwasielewski1990 said:
    N_R Arts said:

    Hi.

    I just wanted to know if this product works with AMD Graphics Cards, or is it just Nvidia?

    https://www.daz3d.com/iray-turbo-x2-10-speed-tutorial

    Thanks.

     

    Iray only works with Nvidia. Seriously, if you want to improve Iray rendering speed, just sell the AMD and buy a decent Nvidia card instead of the tutorial - much quicker resolution of your problem :) I can totally see why the price tag on 1080ti or the RTX series might be a problem for some people, but if you have a way to monetize your renders (I have), then such video card will be an investment with fairly quick return rate. 

    Apart from this, I might post my own mini-tutorial here on the forum as I work with Iray on a day to day basis and I made hundreds of renders already... My point being, eventually, If you experiment enough, you will find your own ways to save render time. But in short:

    1) Hide unnecessary items

    2) If you render multiple figures/actors in the background, use the same skin texture for each one. It won't look that horrible, and it will save the VRAM of your (future) video card. Less textures - less calculations.

    3) Use the subdivision parameter to decrease geometry on objects/props that you want to be visible, but that are not that important

    4) Despite what people are saying, you can use the Nominal Luminance parameter along with tone mapping if you do it right. Most of the time it will remove fireflies/artifacts completely after as short as ~100-200 iterations

    5) Bump the rendering quality parameter. As stupid as it sounds, I found out that rendering with this set to 300 as opposed to default 1 will slow down rendering of each one iteration, but after a couple of such iterations the resulting image is 100 times better than with default quality after, for example 1000 iterations. In other words, you can achieve the same quality but a bit faster.

    6) Render background in 3Delight and Actors in Iray. not much explanation needed : P

    7) Add more light - the more light, the less time it takes for Iray to compute. Night/dark scenes are a horror in Iray and there's no workaround for that

    I could probably think of more stuff... if I will remember something, I'll update my post :)

    Other speed ups to consider as well as those above:

    1) Use the denoiser built into DS, if you have an nVidia card, or a software one, if you do not.

    2) Reduce the texture resolutions for background objects, (or even foreground ones when the textures are very large on small/medium sized objects). Something like SceneOptimiser will help here.

    3) Use a flat plane mesh light out of camera shot to shine additional light on darker, difficult to render areas.

    4) Replace textures with non-texture based shaders were this is possible (eg metals)

    5) To render dark scenes, you can actually give them a lot of light, then use tone mapping (or post work) to darken them.

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