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Iray quality lower after Daz upgrade

Dangerguy01Dangerguy01 Posts: 2
in Technical Help (nuts n bolts)

I upgraded Daz Studio over the weekend to the latest version (4.11.0.383 64 bit), updated my NVIDIA drivers for my GTX 1080, and now I'm noticing the quality of the Iray renders has declined. It's not night and day, but I'm noticing everything looks a little bit more pixilated, a little rougher around the edges. This must be a software thing because the hardware hasn't changed, but I'm not sure if it's with Daz or the driver.

I've also noticed that the render times seem to be faster, which sounds good except everything I'm reading about 4.11 here on the forums seems to indicate that render times are generally slower.

Any suggestions or help are much appreciated!

Comments

  • Takeo.KenseiTakeo.Kensei Posts: 1,303

    Don't know what you mean with Quality, but you can check your render settings and make sure your render Quality is still at 1 (or more) and check your Filtering settings if your pixel filter is appropriate (sinc, lanczos etc... and pixel radius)

  • Dangerguy01Dangerguy01 Posts: 2
    Takeo.Kensei said:

    Don't know what you mean with Quality, but you can check your render settings and make sure your render Quality is still at 1 (or more) and check your Filtering settings if your pixel filter is appropriate (sinc, lanczos etc... and pixel radius)

    I think I'm using the same settings as before, but I'll double-check. If you have any suggested settings for those items I'd appreciate it.

  • Dangerguy01Dangerguy01 Posts: 2

    Huh.

    So turning all the render settings back to their defaults did the trick, but it didn't isolate the issue.

    So I went through the settings one by one and traced it to the Noise Degrain Radius under Filtering. Set that (and Noise Degrain Blur Difference) to 0 and the problem went away.

  • Takeo.KenseiTakeo.Kensei Posts: 1,303

    Good to know. Default settings are usually good enough so you should stick to that

  • fastbike1fastbike1 Posts: 4,078
    edited August 2019

    EDIT - Nevermind. Thought I didn't have any hidden properties. Turned out i was wrong.

    @Dangerguy01 "traced it to the Noise Degrain Radius under Filtering. Set that (and Noise Degrain Blur Difference) to 0"

    Where are you finding these settings? Both the 4.11.0.383 and the 4.12.0.47 build show the following for filtering on my installation.

     

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    Post edited by fastbike1 on
  • ahmed1hseahmed1hse Posts: 21

    I have to agree with Dangerguy01 - the quality is worse than the previous update

    and the denosier setting is really not that good, it help to make the render faster but the pic will look slightly cartoonish...!

  • fastbike1fastbike1 Posts: 4,078

    Do you really believe Nvidia made the Iray render engine worse????  Much more likely to be your settings. 

    ahmed1hse said:

    I have to agree with Dangerguy01 - the quality is worse than the previous update

    and the denosier setting is really not that good, it help to make the render faster but the pic will look slightly cartoonish...!

     

  • Takeo.KenseiTakeo.Kensei Posts: 1,303
    ahmed1hse said:

    I have to agree with Dangerguy01 - the quality is worse than the previous update

    and the denosier setting is really not that good, it help to make the render faster but the pic will look slightly cartoonish...!

    The denoiser can give a good quick noiseless early preview but then you still have to wait for a good enough quality according to your standard. I personnaly didn't use it a lot but from my few tests, I didn't notice big quality loss if I waited enough. There's certainly a way to set the renderer to get a good compromise between quality and rendertime

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