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New Daz 4.8 User, Iray Renders End Up With Lots of Noise, Small Dots Everywhere, picture included...

smtelephone_cb7254b03asmtelephone_cb7254b03a Posts: 35
edited December 1969 in New Users

Hi, I was wondering what I need to adjust so that the render will actually "finish" to the point to where I can see any detail on the people's face. I am Daz 4.8 Beta using Iray I just have the environment settings put to default. Does anyone know how to adjust what I want?

Thanks.

bus_stop_dots_copy.jpg
1700 x 956 - 797K
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Comments

  • kaotkblisskaotkbliss Posts: 2,914
    edited December 1969

    Under Progressive Rendering
    There are 3 things that stop a render in Iray (whichever happens first will stop the render)
    2 hour time limit
    Convergent Ratio of 95%
    Max Samples of 5000 I believe is the last one

    You need to watch your render and find which one it's hitting first and up that value to make the render go longer.

  • smtelephone_cb7254b03asmtelephone_cb7254b03a Posts: 35
    edited December 1969

    Thanks for the info, my render sat at 0 percent for 5 hours then just stopped. The computer hadn't been touched at all during that time. Do you think the 5 hour time is accurate? If I increase the 5000to say 10000 would that increase the quality as well?

  • kaotkblisskaotkbliss Posts: 2,914
    edited December 1969

    That sounds like a common bug where Iray will finish but not close and just keep counting away while not really doing anything.
    Are you using your graphics card or CPU?

  • smtelephone_cb7254b03asmtelephone_cb7254b03a Posts: 35
    edited April 2015

    I'm using the cpu on my laptop. I'm working on building a desktop with a geforce card but it's not ready yet.

    Post edited by smtelephone_cb7254b03a on
  • kaotkblisskaotkbliss Posts: 2,914
    edited December 1969

    Did the iterations change at all during that time? If not, then you might have to try a different camera angle or hope that nVidia gets their fix released soon (just read that they created a fix and are in the process of testing it)

  • smtelephone_cb7254b03asmtelephone_cb7254b03a Posts: 35
    edited December 1969

    I'm not 100percent sure but I think the iterations went up as the render did its thing. Would the fix come as a 4.8 update or in another form do you have any clue Lol?

  • kaotkblisskaotkbliss Posts: 2,914
    edited December 1969

    Pretty sure bet it's going to be an update for 4.8 before 4.8 gets out of beta.

    If the iterations were going up, then it may have just simply hit the 2hr limit but didn't close down properly. I would try adding a half hour or so and see if that helps. Since it's grainy, I don't think it hit it's convergence or max sample limit.

  • smtelephone_cb7254b03asmtelephone_cb7254b03a Posts: 35
    edited December 1969

    Ok I will play around with those when I get to my computer. Thank you for the tips. Do you have any examples of your work available for viewing online? I'm curious to see other people's stuff who actually know what they are doing.

  • kaotkblisskaotkbliss Posts: 2,914
    edited December 1969

    I wouldn't really say I know what I'm doing, just passing along what little I've learned so far.
    I've got a couple of Iray works in the March and April New User Contests

  • BeeMKayBeeMKay Posts: 7,019
    edited December 1969

    You can also try rendering at a smaller image size first, to see if the render completes properly.
    I had problems rendering iray images above a certain size, which worked fine at a smaller size.

  • HorusRaHorusRa Posts: 1,664
    edited February 2019

    .

    Post edited by HorusRa on
  • scorpioscorpio Posts: 8,481
    edited December 1969

    horus3523 said:
    I'm getting these dots and such too just like your render. I'm not sure about u'r render time and that thread. I just did a simple render (probably 5 mins), but I did get them too. So no one knows what causes the dots,distortions (graininess)?

    5 minutes is not long enough for an Iray render if you are only using CPU, even a simple scene will take up to an hour, depending on the scene and you machine specs.

  • HorusRaHorusRa Posts: 1,664
    edited February 2019

    .

    Post edited by HorusRa on
  • kaotkblisskaotkbliss Posts: 2,914
    edited December 1969

    Watch your render progress How many iterations does it hit when it stops? (it's obviously not hitting the 2hr mark so we can rule that one out)

  • HorusRaHorusRa Posts: 1,664
    edited February 2019

    .

    Post edited by HorusRa on
  • kaotkblisskaotkbliss Posts: 2,914
    edited December 1969

    It shows it here while rendering

    Screenshot_2015-04-09_08.54_.20_.png
    360 x 156 - 9K
  • HorusRaHorusRa Posts: 1,664
    edited February 2019

    .

    Post edited by HorusRa on
  • kaotkblisskaotkbliss Posts: 2,914
    edited December 1969

    And that's when it's just about to finish? Well it's definitely not hitting the 5,000 mark. So the only thing left to change would be the convergent rate.
    so go into your Render Settings and into Progressive Rendering

    Where it says Rendering Converged Ratio, change it from 95% to 100% (or higher which requires clicking on the gear icon and unchecking "Use Limits")

  • HorusRaHorusRa Posts: 1,664
    edited February 2019

    .

    Post edited by HorusRa on
  • kaotkblisskaotkbliss Posts: 2,914
    edited December 1969

    Ahh, you're set on 3Delight, not Iray.
    Check your "Engine" at the top

  • HorusRaHorusRa Posts: 1,664
    edited February 2019

    .

    Post edited by HorusRa on
  • HorusRaHorusRa Posts: 1,664
    edited February 2019

    .

    Post edited by HorusRa on
  • kaotkblisskaotkbliss Posts: 2,914
    edited December 1969

    Are you on Daz 4.8? That beta version has the Iray rendering added.

  • HorusRaHorusRa Posts: 1,664
    edited February 2019

    .

    Post edited by HorusRa on
  • kaotkblisskaotkbliss Posts: 2,914
    edited December 1969

    So you don't have Iray then. You will need to adjust your 3Delight settings
    I usually use

    Bucket size of 8
    Max ray Trace Depth of 1 or 2
    Pixel Samples X/Y of 10
    Shadow Samples of 10
    Gamma 0.75
    Shading rate of 0.01
    Pixel Filter Width X/Y 32

    Then I adjust the Pixel Samples Shading Rate and Pixel Filters as/if needed

  • BeeMKayBeeMKay Posts: 7,019
    edited December 1969

    horus3523 said:
    No. I d/l mine a few weeks ago. It is version 4.7.0.12 Pro
    I could get it, but can it over-write 4.7 or do I need to uninstall 4.7 u think?

    4.8 installs parallel to 4.7. but you have to install it by DIM.
    It is the BETA version currently in public testing. Here's the current Beta version's thread:
    http://www.daz3d.com/forums/discussion/54058/

  • Richard HaseltineRichard Haseltine Posts: 102,770
    edited December 1969

    It looks as if you are using a lighting set using uberEnvironment. If you find the omniFreaker\uberEnironment 2 folder under Light presets in the Content Library then there are quality settings - try using the best of those with the uberEnironment light selected in the scene and see how you get on.

  • scorpioscorpio Posts: 8,481
    edited December 1969

    If you use decent UberEnvironment settings your shading rate doesn't nee to be as low as 0.01 I usually use 0.2 or 0.5.
    Render settings I usually use are

    Bucket size of 16
    Max ray Trace Depth of 1 or 2
    Pixel Samples X/Y of 12
    Shadow Samples of 24
    Gamma 2.2 if on - I usually leave this off
    Shading rate of 0.2 or 0.5
    Pixel Filter Width X/Y 8

  • HorusRaHorusRa Posts: 1,664
    edited February 2019

    .

    Post edited by HorusRa on
  • HorusRaHorusRa Posts: 1,664
    edited February 2019

    .

    Post edited by HorusRa on
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