IRAY Photorealism?

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Comments

  • ProPoseProPose Posts: 527

    Love the "rey eye" effect.  People used to pay to remove red eye,  funny!

  • Excellent work Jeff, I feel I am locked to specific scenes to get the realism I want.  As soon as I deviate to something else I lose the realism.  Iray and the skin materials I have set up are very much dependant on light.  Low light you can forget it.  Octane works for me in all lighting conditions, but just so easy to work directly in DAZ vs export .objs to the Octane Standalone.  I don't have much luck with the Octane DAZ plugin....seems to busy and hard to use for me.

  • thomasbrandy287@yahoo.com[email protected] Posts: 58
    edited September 2019

    Model and textures are free from 3dscanstore.com.

    Render in Daz Iray, default hdr, with 2070, in 31seconds. No post.

    image

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  • marblemarble Posts: 7,500
    edited September 2019

    I think that fairly realistic images are possible with very little effort in DAZ Studio. I was just playing with the parameter sliders to create a slightly different looking Lilly (from Zev0) but this render is using the default environment HDR (loaded automatically for each new scene I create). No additional lights. I did tinker with the skin tone and added a little make-up but otherwise nothing special was done to produce the portrait.

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  • Model and textures are free from 3dscanstore.com.

    Render in Daz Iray, default hdr, with 2070, in 31seconds. No post.

    image

    This is very cool, and I think this highlights a big piece to our puzzle.   This model looks like a person, ratio wise.  But Daz character models, up to this point, don't have meshes that match realistic human proportions, do they.  They look stylized almost unanimously, including characters not proported to be stylized.  It often seems the heads look like eggs where the brow and temple shape then comes off looking fake.

    And, the eyes and hair are missing from this render, so the pic omits 2 of the greatest challenges for believable characters. 

    Iray does hair beautiful. 

    But Daz Eyes- OMG....it's not the fault of Iray, but the meshes are not there yet.  Look at a photo vs our renders...just the eyes....you will see the difference.  No Daz eye captures all the detail of the eye anatomy yet.

  • ProtozoonProtozoon Posts: 554
    edited September 2019

    Whst is the polycount of that 3dscan bust? Looks awesome.

     

    I think this Babina 8 promo is quite realistic looking. I wonder if there is postwork involved.

    https://www.daz3d.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/b/a/babina-extra-01.jpg

    Post edited by Protozoon on
  • The main problem of Daz models are that focus more on pores and details than on primary and secondary forms.

     

     

    Protozoon said:

    Whst is the polycount of that 3dscan bust? Looks awesome.

     

    I think this Babina 8 promo is quite realistic looking. I wonder if there is postwork involved.

    https://www.daz3d.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/b/a/babina-extra-01.jpg

     

    It has 12410, you can found on artstation just search "Free Head".

    For me babina 8 render is very far of photorealism, the eyes look very false, perfect symmetry, SSS effect very strong a common mistake IMHO..

  • Maraun said:

    The main problem of Daz models are that focus more on pores and details than on primary and secondary forms.

     

     

    Protozoon said:

    Whst is the polycount of that 3dscan bust? Looks awesome.

     

    I think this Babina 8 promo is quite realistic looking. I wonder if there is postwork involved.

    https://www.daz3d.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/b/a/babina-extra-01.jpg

     

    It has 12410, you can found on artstation just search "Free Head".

    For me babina 8 render is very far of photorealism, the eyes look very false, perfect symmetry, SSS effect very strong a common mistake IMHO..

    Agreed on the primary and secondary forms.

     

    Now on the Babina, to me this looks like a photo!...untilI look harder... 

    and I can see all the Daz give-aways...eyes are flat in color, eyebrows are shiny, odd neck bump/normal, face is too symetrical.  And the pore detail looks too....identical, I guess? 

    But what does work - the swirly whirls of color from the hair, the depth of field, the jewlery detail, the bokeh kind of blurring.  These touches help obscure and make it look more real. 

    @Protozoon - IMO postwork definitely gets an assist here -   Good teamwork, Post!

     

  • Another HDRI render :

     

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  • MasterstrokeMasterstroke Posts: 2,000
    Tammuz43 said:

    Another HDRI render :

     

    nice yessmiley I like it.

  • BrijacBrijac Posts: 11

    Latest renders





    EDIT: sorry, was not quite happy with the first one. Now it's perfect. ;-)

    That last one is a perfect example of how to make a realistic smile. Great job!

  • Brijac said:

    Latest renders





    EDIT: sorry, was not quite happy with the first one. Now it's perfect. ;-)

    That last one is a perfect example of how to make a realistic smile. Great job!

    not bad 

  • Just some new ones...  trying to do more close ups...  

  • ProtozoonProtozoon Posts: 554
    edited November 2019

     

    Just some new ones...  trying to do more close ups...  

    I don't see "chromatic aberration" like before. I like these very much! Awesome!

    Post edited by Protozoon on
  • Great stuff Jeff!!  Been wondering when your updates would be coming.  wink

  • MasterstrokeMasterstroke Posts: 2,000
    edited November 2019

    so, I've been trying to learn about canvases in DS.
    I got some renders, postworked exposure in Photoshop but have been unable to get them out of PS without loosing the color effects. Makes sense, I thought, after all those renders are 32bits depth and JPG might not do it. The only trick I found to keep those vibrant colors, was to do a screen shot. and it worked.
    Maybe somebody can help me, by telling me a more elegant solution. wink





     

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  • MasterstrokeMasterstroke Posts: 2,000
    edited November 2019

    and in b/w

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    Post edited by Masterstroke on
  • Masterstroke -- what exactly are you trying to do with a DS canvas?  I'm trying to figure out why photoshop doesn't solve all your problems.

  • Masterstroke -- what exactly are you trying to do with a DS canvas?  I'm trying to figure out why photoshop doesn't solve all your problems.

    Based on this discussion:
    https://www.daz3d.com/forums/discussion/152516/dynamic-range-of-iray-renders/p1

  • davidtriunedavidtriune Posts: 452
    edited March 2020

    I learned that photoscanned textures (photogrammatry) generally give MUCH more realistic renders. Photoscanned textures look better in non-raytracing engines (like UE), than photoshopped textures in DAZ

    Post edited by davidtriune on
  • For the past little while now I've been trying some different things in my renders. Maybe not totally realistic, but at the very least I try to avoid the Daz look, if that makes any sense. Still learning a lot. Wish I would have found this thread sooner.

  • Leonides02Leonides02 Posts: 1,379

    so, I've been trying to learn about canvases in DS.
    I got some renders, postworked exposure in Photoshop but have been unable to get them out of PS without loosing the color effects. Makes sense, I thought, after all those renders are 32bits depth and JPG might not do it. The only trick I found to keep those vibrant colors, was to do a screen shot. and it worked.
    Maybe somebody can help me, by telling me a more elegant solution. wink





     

    But.... Your screenshot is, conceivably, a JPG, right?

    Have you tried to export to PNG? 

  • 00qisq00 said:

    For the past little while now I've been trying some different things in my renders. Maybe not totally realistic, but at the very least I try to avoid the Daz look, if that makes any sense. Still learning a lot. Wish I would have found this thread sooner.

     

     

     

     

    00qisq00 said:

    For the past little while now I've been trying some different things in my renders. Maybe not totally realistic, but at the very least I try to avoid the Daz look, if that makes any sense. Still learning a lot. Wish I would have found this thread sooner.

     

    These are great.  Watch out for too much focal distance blurring... tends to make it less realistic.  

  • marblemarble Posts: 7,500
    00qisq00 said:

    For the past little while now I've been trying some different things in my renders. Maybe not totally realistic, but at the very least I try to avoid the Daz look, if that makes any sense. Still learning a lot. Wish I would have found this thread sooner.

     

    Just out of interest, are those bedrooms photographs or are they also created in DAZ Studio with props? If the latter - very realistic, as are the women, of course.

  • 00qisq00 said:
     

    These are great.  Watch out for too much focal distance blurring... tends to make it less realistic.  

    Thanks! I'll take that into consideration. It's probably not totally needed on most of what I render but I just end up using it a lot for some reason anyway. I think sometimes I just make a low effort on the background and don't want it to show clearly indecision

     

     

    marble said:

    Just out of interest, are those bedrooms photographs or are they also created in DAZ Studio with props? If the latter - very realistic, as are the women, of course.

    Thank you! The rooms are created with props from various sets with some slight modifications here and there.

  • marblemarble Posts: 7,500
    00qisq00 said:
    00qisq00 said:
     

    These are great.  Watch out for too much focal distance blurring... tends to make it less realistic.  

    Thanks! I'll take that into consideration. It's probably not totally needed on most of what I render but I just end up using it a lot for some reason anyway. I think sometimes I just make a low effort on the background and don't want it to show clearly indecision

     

     

    marble said:

    Just out of interest, are those bedrooms photographs or are they also created in DAZ Studio with props? If the latter - very realistic, as are the women, of course.

    Thank you! The rooms are created with props from various sets with some slight modifications here and there.

    Welcome - they are most impressive. I tend to agree about the distance blur but perhaps it might be the other way around in that the human figures are a tad too sharp? That's always a give-away for me with CGI renders - the figures often seem to be in a more vivid dimension than the background. We only have to look at renders with DAZ characters standing in an HDRI setting - need I say more?

  • Sven DullahSven Dullah Posts: 7,621
    marble said:
    00qisq00 said:
    00qisq00 said:
     

    These are great.  Watch out for too much focal distance blurring... tends to make it less realistic.  

    Thanks! I'll take that into consideration. It's probably not totally needed on most of what I render but I just end up using it a lot for some reason anyway. I think sometimes I just make a low effort on the background and don't want it to show clearly indecision

     

     

    marble said:

    Just out of interest, are those bedrooms photographs or are they also created in DAZ Studio with props? If the latter - very realistic, as are the women, of course.

    Thank you! The rooms are created with props from various sets with some slight modifications here and there.

    Welcome - they are most impressive. I tend to agree about the distance blur but perhaps it might be the other way around in that the human figures are a tad too sharp? That's always a give-away for me with CGI renders - the figures often seem to be in a more vivid dimension than the background. We only have to look at renders with DAZ characters standing in an HDRI setting - need I say more?

    I agree. I tend to offset the focal plane slightly so it is actually behind the character. But DoF, if used correctly, definitely contributes to the "realism" IMO.

  • AsariAsari Posts: 703
    edited November 2019

    I feel we can get closer to the typical 2 areas of render-or-photo-giveaways - eyes and hair. I played with shader settings of different eyes mats, and with some patience you can create a realistic strand-based-hair model that can look fairly realistic, more realistic than transmapped hair in my opinion.

    You can also "fake" more realism by tweaking your picture to look like an edited photograph or a low quality photograph ... whether it's appealing to you or not is another thing. You can either try tonemapping settings or edit the image in postwork.

    (Not that these are prime examples of Iray photorealism - no they are not - just for the certain areas - especially hair in image 1 - it looks more realistic than my other shots)

     

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  • JunosJunos Posts: 4
    edited November 2019

    I was impressed with Mr.Jeff's writing, so I tried it.

     

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  • Leonides02Leonides02 Posts: 1,379
    Asari said:

    I feel we can get closer to the typical 2 areas of render-or-photo-giveaways - eyes and hair. I played with shader settings of different eyes mats, and with some patience you can create a realistic strand-based-hair model that can look fairly realistic, more realistic than transmapped hair in my opinion.

    You can also "fake" more realism by tweaking your picture to look like an edited photograph or a low quality photograph ... whether it's appealing to you or not is another thing. You can either try tonemapping settings or edit the image in postwork.

    (Not that these are prime examples of Iray photorealism - no they are not - just for the certain areas - especially hair in image 1 - it looks more realistic than my other shots)

     

    .

    Wow, that is exellent hair, Asari. Could you tell us what settings you used? What did you do?

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