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Iray has to much noise in the Image...

PetraPetra Posts: 1,156
edited April 2016 in Daz Studio Discussion

Iray has to much noise in the Image and I am not sure what I have to change in the Rendersettings and / or Advanced rendersettings.

What should I put in Texture compression for example,what would be a good size.

My PC renders fast, I have an Intel 7 16Gig quad core with a Nvidia GeForce GTX 980 ti, but it can not be that fast right, do I do something wrong.

I used a slow iMac up until today so I did not really play with Iray, now I can but the noise in the Image once rendered is not so nice.

I do hope someone can help me. I am reading throught the Iray thread but can not find what I am looking for in regards to the noise.

Edited to add full question to body of post

Post edited by Richard Haseltine on

Comments

  • Richard HaseltineRichard Haseltine Posts: 102,436

    How is you sceen lit? Iray does struggle with very high contrast images, areas that are in the shade may still be very noisy by the time the convergence threashold is reached. Upping the render quality or increasing the minimum convergence (to 99% at most) may help, adding more light so there's enough to reach the darker arreas may help. If the whole image is noisy then you may, given your hardware, need a radical rethink of the contents as few images should take over two hours (the default time out) as long as they fit in the card's memory.

  • PetraPetra Posts: 1,156
    Richard Haseltine said:

    How is you sceen lit? Iray does struggle with very high contrast images, areas that are in the shade may still be very noisy by the time the convergence threashold is reached. Upping the render quality or increasing the minimum convergence (to 99% at most) may help, adding more light so there's enough to reach the darker arreas may help. If the whole image is noisy then you may, given your hardware, need a radical rethink of the contents as few images should take over two hours (the default time out) as long as they fit in the card's memory.

    I did not understand any of this as I never used Iray , my iMac could not handle it, so this is brandnew.

    I realy need to know what to put in the texture compression in the Advanced Iray settings.

    I have just the GPU selected right now and the Optix Prime Acceleration, I have not checked CPU.

    It is only the skin of the characters that have to much noise, the clothes and the prop she is standing on is fine.

    There is also something with Dome and sphere to choose from...

    I read somewhere that one can make the render time longer to get rid of the noise, but this too is something I would not know how too.

    I am sorry for all those questions and I am very gratteful for your quick reply, it means a lot to a Iray newbie :)

     

  • PetraPetra Posts: 1,156
    Richard Haseltine said:

    How is you sceen lit? Iray does struggle with very high contrast images, areas that are in the shade may still be very noisy by the time the convergence threashold is reached. Upping the render quality or increasing the minimum convergence (to 99% at most) may help, adding more light so there's enough to reach the darker arreas may help. If the whole image is noisy then you may, given your hardware, need a radical rethink of the contents as few images should take over two hours (the default time out) as long as they fit in the card's memory.

    Oh, I bought Ellianecks first Light Set and used one of those lights.

     

  • PetraPetra Posts: 1,156

    You help Iray I give treat... Well, that is what smooch offers, not me, he did it , I did not do it. lol

     

    You help iray I give treat.png
    1000 x 1000 - 751K
  • Richard HaseltineRichard Haseltine Posts: 102,436

    Render time and quality are set in the Progressive group of Render Settings, in the Editor tab. I don't have that light set, so I don't know how it is set up. Are you setting the render in an enclosed space (a room, a sphere or box)? That may be blocking some or all of the light.

  • PetraPetra Posts: 1,156

    Hi Richard,

    No, it is just a figure standing on a base and I used the default settings, that is why I am here to find out about , for example the Advanced render settings regarding  texture compression .

    Somone told me  should put higher numbers in but I have no Idea at this point.

  • Richard HaseltineRichard Haseltine Posts: 102,436

    I wouldn't expect compression to add noise, though you could se the threshold for strong compression to 4,100 and try rendering (the vlaue si the size, in pixels, at which a texture image will be subject to that degree of compression).

  • PetraPetra Posts: 1,156

    Thank you , I try that.

    And what to I tick, just GP or everyting in the advanced rendersettings?

     

  • Richard HaseltineRichard Haseltine Posts: 102,436
    edited April 2016

    You don't need to check anything - I can't recall, but if there's already a check box set for compression uncheck it. If there's a box and it isn't set then compression isn't being used anyway.

    Edit: my render finished, so no there's nothing to check - just increase the value in High Threshold.

    Post edited by Richard Haseltine on
  • PetraPetra Posts: 1,156
    Richard Haseltine said:

    You don't need to check anything - I can't recall, but if there's already a check box set for compression uncheck it. If there's a box and it isn't set then compression isn't being used anyway.

    Edit: my render finished, so no there's nothing to check - just increase the value in High Threshold.

    Thank you Richard, will do.

    Just reading Sickelyields tutorials, very helpful.

    Petra

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