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Sharpenss in IRAY renders--how?

DrowElfMorwenDrowElfMorwen Posts: 538
in Daz Studio Discussion

I know that with the 3Delight render, the lowest shading rate setting, 0.010, gives one the sharpest renders and it is not soft or 'blurry' looking. Well I cannot seem to figure out what the Iray equivlant is. I want this sharpness in Iray but haven't been able to achieve it. Please, I need this mystery solved :D

 

Comments

  • SickleYieldSickleYield Posts: 7,644

    Iray renders that are less "finished" are usually grainy rather than blurry.  They get smoother and sharper as you render longer.  You make them render longer by going to Progressive Rendering, turning off Quality, and setting the max time and samples up higher.  Alternately, you can leave Quality on and increase the number from 1 to 2 or 3.  Be aware that this will increase the render time in a geometric fashion every time you increase it (2x the 1 value, 3x the 1 value, etc.).

  • DrowElfMorwenDrowElfMorwen Posts: 538

    Oh thanks SY :D I actually do let my renders go on until finished and I have increased the samples to the max (unless I can take off that max?) I will mess some more with the Quality setting. :)

  • fastbike1fastbike1 Posts: 4,078

    I have found that your camera focus point matters even if depth of field is not checked. For instance if your focus point is well behind the figure, the render will not be sharp. You may want to see if this helps.

  • DrowElfMorwenDrowElfMorwen Posts: 538

    Thanks for the tip. 99% of the time though I am using DOF.

  • Oso3DOso3D Posts: 15,041

    Fastbike: Interesting.

    I often use sharpen tools for postwork. Can help a lot.

     

  • PetercatPetercat Posts: 2,321

    This has been mentioned in other posts, but it applies here as well.

    If you render in iray at twice the size of your final product (2400X2000 instead of the desired 1200X1000, say) and then resize the image (I use paint.net) using a resampling setting like "Nearest Neighbor", you will see a noticeable increase in sharpness compared to an iray render at 1200X1000.

  • QliphothQliphoth Posts: 14
    edited December 2015

    Sickleyield, I could hug you. That grain in the "finished" renders has been driving me totally bonkers. Great to know how to fix it now! Needless to say I'm still getting use to Iray after a decade of using the old Daz renderer.

    Post edited by Qliphoth on
  • aspinaspin Posts: 219
    edited December 2015

    Lowering this value can sharpen your pictures as well: Render settings -> Filtering -> Pixel Filter Radius

    Post edited by aspin on
  • JimbowJimbow Posts: 557

    Under the render settings go to the Filter tab and change the antialiasing filter from Gaussian to Mitchell.

  • barbultbarbult Posts: 24,772
    aspin said:

    Lowering this value can sharpen your pictures as well: Render settings -> Filtering -> Pixel Filter Radius

    This works very well for me, too.

  • MusicplayerMusicplayer Posts: 515

    I personally find the gaussian pixel filter blurs the render image at its 1.5 default. I mostly adjust this down to 0.8 for sharper renders. I will also try Jimbow''s  suggestion of using the mitchell filter.

  • FishtalesFishtales Posts: 6,162

    I would just like to say that, in my photographic images in PS, the pixel radius is also dependent on image size. The larger the image, the more pixels, the higher the radius can be. Smaller images, less pixels, need a smaller radius. I found that on images of 1000 pixels to 1200 pixels, long side, at a ratio of 6x4 need a radius of 1.2. At least that setting looks right to me but may not to others :)

  • RuphussRuphuss Posts: 2,631

    especially when i try interactive mode the hdri dome is much more blurry than in photoreal

    i tried everything mentioned here but no success for this

    scene is ok though

    so it is not possible to get a sharp hdri dome in interactive mode ?

    dome is dthdr maui

    so a good one

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