Loading...
> >

Why Do My Renders Look Grainy

villainstudiosvillainstudios Posts: 19
in Daz Studio Discussion

I was wondering why my images that I render in daz studio 4.11 how come they look so grainy. Some do while others dont. I think it must be in the render settings and dont know what I should be looking for. I linked to a picture of mine on renderosity down below. Thanks for helping me with this.

https://www.renderosity.com/mod/gallery/raver-girl/2887293/?p

Comments

  • TaozTaoz Posts: 9,971
    edited August 2019

    You could try these render settings to increase render time. If it's not enough, increase Max Samples (click on the cogwheel above the number, select Parameter Settings, and uncheck Use Limits, then you can go above 15000).

    Or you can use the post denoiser under Render Setttings > Filtering, or the standalone NVidia or Intel (the best according to many) denoisers after rendering. Denoising with these will however remove some of the details, here's your image denoised with the NVidia standalone denoiser (click image to see full size version):


     

    nvidia_render_settings.png
    405 x 402 - 39K
    cecc_large_nvidia.png
    1000 x 1250 - 1M
    Post edited by Taoz on
  • villainstudiosvillainstudios Posts: 19

    Thanks I will give that a shot.

  • CrescentCrescent Posts: 329

    Setting the Render Quality higher than 1 also makes a difference.  (It's two items down from the Max Time in the screenshot shown above.)  

  • TaozTaoz Posts: 9,971
    edited August 2019

    Forgot to say that when render quality is turned off you need to keep an eye on the renders and stop them when you think they're OK, otherwise, depending on the Max Samples number, they may run far longer than necessary.

    And also forgot the links to the standalone denoisers:

    https://www.daz3d.com/forums/discussion/316206/denoise-renders-and-save-a-lot-of-time-nvidia-not-reqd
    https://taosoft.dk/software/freeware/dnden/

    Post edited by Taoz on
  • nemesis10nemesis10 Posts: 3,488

    I recommend keeping Pixel Filter Radius between 1.3 and .93 also.

  • onixonix Posts: 282

    You probably forgot to enable post denoiser.

    nowadays with that options, available noise is no longer an issue, a picture should look clean after just a few rendering passes.

    Now you should care more about image detail, since unfortunately there i is no automatic way to determine the picture quality and required rendering time. because it heavily depends on scene lighting and amount of detail.

    Areas that do not get direct light will be noisy and lack detail while areas that are well lit will look great immediately.

    My recommendation is also to render images at the double resolution and then scale them down if necessary as this way denoiser will work way better.

  • nonesuch00nonesuch00 Posts: 18,293

    Well when you are striving for realism like a photo a bit of grain is advantageous but for something like your subject matter is best with clean sharpness so an HRDI just after dusk or just before dawn, so that you have than mild dim lighting without the red shift of dusk or dawn in the light and avoid the very bright light of broad daylight in the light, is helpful.

    The Ultra Genesis studio lighting products have indoor lighting setsups like yours but can be grainy as well when rendered. It's like film - indoors usually equals grainy unless you use very bright studio lighting setups. You can also change the ISO in render settings to 400, 600, 800, 1200, 1600, and so on. 400 is the most common for indoor photos.

Sign In or Register to comment.