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Show Us Your Iray Renders. Part II

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  • 8eos88eos8 Posts: 170
    edited December 1969

    Just to make it clear, I'm doing the same thing pearbear is, which is to adjust the setting which is known as gamma in the Levels tool in Gimp and Photoshop. Really, if you have a nice bell-shaped histogram, then I think all you need to do is make sure the gray triangle is right under the peak so that 50% gray is set at the median of the distribution. The magic number 2.2 will work for any textures for DAZ content if they were made for older versions of Studio that didn't do gamma correction correctly, for which the artists compensated by applying a 0.45 gamma to their textures.

    (And I promise to avoid using the G-word again, didn't mean to get everyone all riled up here....I'll just call it "that middle thingey in the levels tool" from now on ;))

    pearbear said:
    Looks beautiful! Thanks for showing your process, very interesting.

    The finely detailed bumpiness of the skin is contributing a lot of good stuff here too, adding a lot of realism and helping the specular shine to break up very nicely. Is that the Macro Skin normal maps?

    Thanks! It's actually using the bump maps that come with Olympia, with strength 5. (I'm not sure, but I don't think you can mix the normal maps from Macro skin with Olympia's skin textures because they're different UV sets?) I also inverted the bump maps and plugged them into Glossy Roughness, that helps with breaking up the speculars too. Some other posters have suggested mapping Reflectivity instead, which can be more intuitive because it doesn't use an inverted scale like Roughness does, but Reflectivity and Roughness are doing somewhat different things and what I've read about PBR texturing suggests that Reflectivity should usually be constant for a given substance while high-frequency surface details get mapped in Roughness along with your normal maps.

    I gotta say it, there is not gamma 2.20 in 8bits images as jpg sorry guys all you do is blasting the curves of exposure LUMINOSITY , the images have still the same gamma as they had before unless you do the job with 32bits and exr files .. With this I mean Iray still handle the image as Liner no matter what you did to it because if it was other case it would adjust the curves while rendering but it does not .
    That are a nice tips as most of the textures need some blast , but the idea is just warped in a wrong terminology to sounds cool but make not sense .

    Plug in a diffuse color maps into Translucency channel is a very bad idea , it would works better if you can do it to Transmitting color channel under SSS but no option for that there beside a color .
    The Translucent channel need to correspond 50\50 with the diffuse color that why the right brightness level is here important , anything darker on the skin color maps will be more translucent in render and darker .
    For that you need to create translucent shadow map in gray scale 2.20 gamma , remove the red channel from it and plug in into Translucent channel with the color RED 255. 0.0 to block the eyebrows and other kind of surface imperfections or hair stubble
    The shadow maps in G2F are not the one that should be used , all you do it convert the Image to black and white in Photoshop and slide the RED channel all way up , it will make place for the Translucency later

    Yeah, sorry if I didn't make it clear before, but that's exactly what I'm doing, I'm factoring out the luminosity info from the texture, by adding the desaturated copy and inverting it. And then I'm putting that in the Translucency channel because it doesn't work to put any maps in Transmitted Color like you said. But I'll try it your way too. :)

  • tomtom.wtomtom.w Posts: 140
    edited December 1969

    Kyoto Kid said:
    ...for sun placement I ditched the timeline totally and use the Sun Disk/Sun Chain when setting up outdoor scenes. Too much having to Google this and that for location Lat., Long., and timezone.

    As to getting the "perfect skin", things are getting pretty technical (isn't there a dedicated thread for this?) and the discussion seems to be going a little over my head. I pretty much just go with a base SSS skin, then apply the Iray G2 shader holding down the key and selecting "ignore". This gives me all the Iray settings without overwriting the primary skin.

    I used this method in the pic of the two girls at the bus stop, the red haired girl using the Belle SSS skin map and the brown haired one using the Josie SSS skin map.

    I change the time of day to get the vertical angle I want, and rotate the sun/sky-dome to get the sun to shine from the direction I want. I tried the sun chain but found the way I do it now to be both faster and easier.

  • kyoto kidkyoto kid Posts: 41,845
    edited April 2015

    ...I just found the Sun Disk to be much simpler as I don't necessarily set up my scenes according to true N or S or E or W.

    An old vet of Bryce.

    Post edited by kyoto kid on
  • pearbearpearbear Posts: 227
    edited December 1969

    Some test renders with photometric spotlights. The Bree texture set is an oldie but a goodie.

    skin2_4.jpg
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    skin2_3.jpg
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    skin2_2.jpg
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  • MEC4DMEC4D Posts: 5,249
    edited April 2015

    Testing out my SSS shader preset ...KABOOM !!! lol
    HDRI Pixar Campus

    ZULU_BACK.jpg
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    ZULU_SIDES.jpg
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    ZULU_SIDES_LEFT.jpg
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    Post edited by MEC4D on
  • Robert FreiseRobert Freise Posts: 4,573
    edited December 1969

    Mec4D said:
    Testing out my SSS shader preset ...KABOOM !!! lol
    HDRI Pixar Campus

    Very realistic looking wonderful work

  • Melissa ConwayMelissa Conway Posts: 590
    edited December 1969

    I've been lurking in this thread, having decided early on that I'm neither skilled nor patient enough to get the results I want from iray.

    Cath, you flat out rock. I am chomping at the bit to purchase any and all presets, etc. you put in the store.

    Hoping someone will also make some one-click HDRIs!

    Now if only the beta would end!

    Mec4D said:
    Testing out my SSS shader preset ...KABOOM !!! lol
    HDRI Pixar Campus
  • RAMWolffRAMWolff Posts: 10,343
    edited December 1969

    Frigging looks like photos Cath. DAYUM GURL! :-)

  • pearbearpearbear Posts: 227
    edited December 1969

    Lookin good :)

    Here's what I'm getting with my Iray skin setup on that model and hdri.

    male2d.jpg
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    male2c.jpg
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    male2b.jpg
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    male2a.jpg
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  • L'AdairL'Adair Posts: 9,479
    edited April 2015

    I'm fairly new to the DAZ experience, having just started with DAZ 4.6 last September. Some of what Mec4d is talking about goes over my head because of terminology that is not yet second nature. (Getting there, though.) This image of Aiko is based on what I've gleaned from some of her latest posts.

    Render Settings->Optimization
    Instancing Optimization: Speed

    Render Settings->Tone Mapping
    All defaults except:
    Burn Highlights: 0.00

    Render Settings->Environment
    Environment Mode: Dome and Scene
    Dome Mode: Finite Sphere
    Draw Dome: Off
    Env. Intensity: 1.0 (default)
    Env. Map: Luxo-Jr_8000x4000.exr (Pixar Campus) at 2.20
    Env. Lighting Resolution: 512 (default)
    Dome Scale Multiplier: 9.0
    Dome Radius: 100.00 (default)
    Dome Rotation: 175.00
    Ground Position Mode: Auto (default)
    Draw Ground: On (default)

    Aiko 6
    1) Applied Uber Shader Base. (Did not apply G2F Iray material preset.)
    2) Changed glossy color from light blue to white.
    2) Diffuse: substituted modified default skin maps with darker skin tone and
    Face map with custom makeup.
    3) Translucency Color: substituted luminosity maps created in Photoshop.
    (Diffuse layer set to Luminosity layer blending, merged with gray layer.)
    Translucency Color set to Red. (255,0,0)
    4) Set all skin surfaces Glossy Layered Weight to .45 and fingernails/toenails to .20

    Didn't change any other settings.


    I'm not drawing the environment as the renders seem to go faster on my system with "Draw Dome" off.

    Guess I need to find posts on Top Coat Color and related settings, but I think I'm getting there. For now.

    Aiko-6-mec4d-skin-instructions-20150422-luminosity-dark-maps.png
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    Post edited by L'Adair on
  • MEC4DMEC4D Posts: 5,249
    edited April 2015

    I was for plan to put the glasses on him too ... I just call to say I love you .. you know what I mean by ;) lol
    looking good too ...

    some tests with Sun Sky

    pearbear said:
    Lookin good :)

    Here's what I'm getting with my Iray skin setup on that model and hdri.

    Zuzu5.jpg
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    zulu3.jpg
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    Post edited by MEC4D on
  • pearbearpearbear Posts: 227
    edited December 1969

    Mec4D said:
    I was for plan to put the glasses on him too ... I just call to say I love you .. you know what I mean by ;) lol
    looking good too ...

    some tests with Sun Sky

    pearbear said:
    Lookin good :)

    Here's what I'm getting with my Iray skin setup on that model and hdri.

    I'd like to put a new set of eyes in him eventually, so he doesn't have to wear the shades.

    The way the light falls off of him in your sky tests is fantastic. I'm really looking forward to collecting your Iray products when they hit the store, if only that day would come sooner. In the meantime, you're providing a lot of great insight and inspiration in the forum. Getting us all amped up for the future of Iray :)

  • MEC4DMEC4D Posts: 5,249
    edited December 1969

    Thanks mate , I was about to do it today actually and give him some set of new dentures and new eyes lol
    did you noticed how the irises are formed ? so much deeper I may adjust my new eye morphs G2 since the one I made was not deep enough .
    And thanks for the great companion , here would be not much fun without you and others to play with it is like in a class ..
    and everyone provide great info so we can find the best solution for this never ending skin debates
    when I am done with my setup I will make preset for G2 figures .. G2F female base looks great already without adjustments but G2F Philippe has to low Luminosity level and need to be adjust but I will try

    Thanks also to Robert, Melissa and Richard for your last comments and everyone that I missed .. I was obsessed to much with Iray I am like 20 hours straight up finishing my new products and testing stuff out between.... I need my cat nap now lol

    TTYL everyone

    pearbear said:
    Mec4D said:
    I was for plan to put the glasses on him too ... I just call to say I love you .. you know what I mean by ;) lol
    looking good too ...

    some tests with Sun Sky

    pearbear said:
    Lookin good :)

    Here's what I'm getting with my Iray skin setup on that model and hdri.

    I'd like to put a new set of eyes in him eventually, so he doesn't have to wear the shades.

    The way the light falls off of him in your sky tests is fantastic. I'm really looking forward to collecting your Iray products when they hit the store, if only that day would come sooner. In the meantime, you're providing a lot of great insight and inspiration in the forum. Getting us all amped up for the future of Iray :)

  • CypherFOXCypherFOX Posts: 3,401
    edited December 1969

    Greetings,
    WOW! Those are amazing; if the eyes are a problem, you should put Jordie La Forge's visor on him. :)

    -- Morgan

  • pearbearpearbear Posts: 227
    edited April 2015

    Cypherfox said:
    Greetings,
    WOW! Those are amazing; if the eyes are a problem, you should put Jordie La Forge's visor on him. :)

    -- Morgan

    Ha, cool idea! They're 3D scans, and the process by which they're made doesn't capture the model's corneas, so the eyes look a bit unsettling unless they're fixed up. As Mec4D mentioned, the irises in the model are surprisingly deep concave pits.

    Post edited by pearbear on
  • jag11jag11 Posts: 885
    edited December 1969

    Congratulations MEC4D & pearbear & Kamion. Your doing a pretty good job.

    I decided to give a try to V4, I don't touch maps, just modify material settings, maybe I start doing that way, anyway, I hate the how the eyes look.

    V4Marie-1.jpg
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  • AlexLOAlexLO Posts: 193
    edited December 1969

    Loving the work everyone!!

    @Mec4D: Cath you took "Get Your Life" to a whole other level LOL
    @PearBear : "What I Say...Tell me What I Say" ;-) I guess the future really is so bright huh?

    What I do is tell my models to close their eyes...that works too hehehe

    Mec4D said:
    Thanks mate , I was about to do it today actually and give him some set of new dentures and new eyes lol
    did you noticed how the irises are formed ? so much deeper I may adjust my new eye morphs G2 since the one I made was not deep enough .
    And thanks for the great companion , here would be not much fun without you and others to play with it is like in a class ..
    and everyone provide great info so we can find the best solution for this never ending skin debates
    when I am done with my setup I will make preset for G2 figures .. G2F female base looks great already without adjustments but G2F Philippe has to low Luminosity level and need to be adjust but I will try

    Thanks also to Robert, Melissa and Richard for your last comments and everyone that I missed .. I was obsessed to much with Iray I am like 20 hours straight up finishing my new products and testing stuff out between.... I need my cat nap now lol

    TTYL everyone

    pearbear said:
    Mec4D said:
    I was for plan to put the glasses on him too ... I just call to say I love you .. you know what I mean by ;) lol
    looking good too ...

    some tests with Sun Sky

    pearbear said:
    Lookin good :)

    Here's what I'm getting with my Iray skin setup on that model and hdri.

    I'd like to put a new set of eyes in him eventually, so he doesn't have to wear the shades.

    The way the light falls off of him in your sky tests is fantastic. I'm really looking forward to collecting your Iray products when they hit the store, if only that day would come sooner. In the meantime, you're providing a lot of great insight and inspiration in the forum. Getting us all amped up for the future of Iray :)

    General-Lee-SSSkin-Study-III-HDRI.jpg
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    General-Lee-SSSkin-Study-II-HDRI.jpg
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    General-Lee-SSSkin-Study-I-HDRI.jpg
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  • D.RobinsonD.Robinson Posts: 283
    edited December 1969

    This thread is getting way over my head since i am a complete noob to 3D art in general. But i have dug thru the entire post and the discussion is intriguing. But for myself and a few others i think we just want to make art...not be Nvidia engineers. Here is my latest Iray Render, well technically only my 3rd and i have only made 4 renders since i joined a week ago heh.

    Ruby.png
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  • rovrov Posts: 46
    edited December 1969

    Mec4D said:
    Testing out my SSS shader preset ...KABOOM !!! lol
    HDRI Pixar Campus

    Looking just like a photograph. Excellent work.

  • kyoto kidkyoto kid Posts: 41,845
    edited December 1969

    ...guess my solution isn't worthy of mention. Oh well.

    Thinking of starting an "Iray Renders Only" thread as this one has become more "technical" in nature. Just want to see what others are doing with it.

  • tomtom.wtomtom.w Posts: 140
    edited December 1969

    Kyoto Kid said:
    ...guess my solution isn't worthy of mention. Oh well.

    Thinking of starting an "Iray Renders Only" thread as this one has become more "technical" in nature. Just want to see what others are doing with it.

    Excellent idea since the signal-to-noise ratio here has been low lately, to a point where the thread has almost turned into a p* contest.

  • BlantyrBlantyr Posts: 90
    edited April 2015

    Melissa Conway said:
    I've been lurking in this thread, having decided early on that I'm neither skilled nor patient enough to get the results I want from iray.

    Cath, you flat out rock. I am chomping at the bit to purchase any and all presets, etc. you put in the store.

    Hoping someone will also make some one-click HDRIs!

    Now if only the beta would end!

    Mec4D said:
    Testing out my SSS shader preset ...KABOOM !!! lol
    HDRI Pixar Campus

    I second the rocking Kaboom! I'm an Iray convert. I like the look and feel of it, but I haven't the patience for a lot of it. I too hope Cath and/or others have some skin presets ready when the Beta ends. One click DS friendly HDRIs would be nice too. This is an interesting and helpful thread but a good deal of it is beyond me.

    Meanwhile, I don't seem to be leaning towards subtle...

    I'm beginning to wonder if the Pixar campus ought to come up as the default lighting environment. ;)

    Blackbird.jpg
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    Post edited by Blantyr on
  • L'AdairL'Adair Posts: 9,479
    edited December 1969

    Blantyr said:
    Melissa Conway said:
    I've been lurking in this thread, having decided early on that I'm neither skilled nor patient enough to get the results I want from iray.

    Cath, you flat out rock. I am chomping at the bit to purchase any and all presets, etc. you put in the store.

    Hoping someone will also make some one-click HDRIs!

    Now if only the beta would end!

    Mec4D said:
    Testing out my SSS shader preset ...KABOOM !!! lol
    HDRI Pixar Campus

    I second the rocking Kaboom! I'm an Iray convert. I like the look and feel of it, but I haven't the patience for a lot of it. I too hope Cath and/or others have some skin presets ready when the Beta ends. One click DS friendly HDRIs would be nice too. This is an interesting and helpful thread but a good deal of it is beyond me.

    Meanwhile, I don't seem to be leaning towards subtle...

    I'm beginning to wonder if the Pixar campus ought to come up as the default lighting environment. ;)

    I like it. Who needs subtle? ;-)

  • L'AdairL'Adair Posts: 9,479
    edited December 1969

    dubby30 said:
    This thread is getting way over my head since i am a complete noob to 3D art in general. But i have dug thru the entire post and the discussion is intriguing. But for myself and a few others i think we just want to make art...not be Nvidia engineers. Here is my latest Iray Render, well technically only my 3rd and i have only made 4 renders since i joined a week ago heh.

    Very appealing. Is the jacket using the Iray Red Velvet shader? It looks really good.

  • D.RobinsonD.Robinson Posts: 283
    edited December 1969

    ACross said:
    dubby30 said:
    This thread is getting way over my head since i am a complete noob to 3D art in general. But i have dug thru the entire post and the discussion is intriguing. But for myself and a few others i think we just want to make art...not be Nvidia engineers. Here is my latest Iray Render, well technically only my 3rd and i have only made 4 renders since i joined a week ago heh.

    Very appealing. Is the jacket using the Iray Red Velvet shader? It looks really good.

    Actually no, its the using Iray default shader. and the orginal texture from the free assets in DAZ Studio. The difference is that in one of the drop downs on the jacket instead of using the Metalliacity/Roughness i changed it to Weighted. I was just fiddling with stuff and when i did that it was like BAM i loved it.

  • D.RobinsonD.Robinson Posts: 283
    edited December 1969

    Actually just got done rendering a revision to Ruby. I tweaked all the lumen levels on the lights as well as their temp. Added an Iray gold shader to the lace part on the jacket. Also changed the shader on the eyes to Iray Thin glass as was suggested elsewhere in this post somewhere. That made the eyes pop they way the supposed to.

    Ruby2.png
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  • MEC4DMEC4D Posts: 5,249
    edited December 1969

    Hello My fellow Iraynians , this thread is for everyone that is interested in PBR rendering using Nvidia Iray in Daz Studio
    You more than welcome to share your knowledge about PBR tips , test renders , or just have a newbie question
    This thread is about inspirations and debates about everything and nothing and in the first place to have some truly fun with.

    As a starter, bellow one of my favorite works I rendered using Iray in Daz Studio
    currently I am working on my own SSS skin shader preset for the base figures

    ds_iray_shader_test__car_paints_flecktarn.png
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    PS_5.jpg
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    PS_4.jpg
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    PS_3.jpg
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    PS_2.jpg
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    PS_1.jpg
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    Magic_Falls.jpg
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    IntegratedS.JPG
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    sss-skintest-m6-cpuonlydraw-042315.jpg
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    iray-cpu-only-rendering-042315.jpg
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    no_tone_mappingq.jpg
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    100.jpg
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    101.jpg
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    red_ferrari_generic_sun.jpg
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    Hoplite_best.jpg
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    ORGANDROM_IRAY_2015.jpg
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    MILKY3_soft_box.jpg
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    ZULU_SIDES.jpg
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    UNSHAVEN_2_PROMO_IRAY_2015.jpg
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  • MEC4DMEC4D Posts: 5,249
    edited April 2015

    Ok have fun guys showcasing your ART with Iray and sorry for distortions in the Air ..once you've seeing me , poof—I'm gone

    and everyone else that is interested in technical side of realistic PBR rendering with Iray no matter your level of expertise
    is welcome to post own test and share knowledge and tips in new thread I just created

    (mod edit: link removed as the thread was merged to assist in keeping the information easier to find)

    Let the PBR game begins! !!!

    Post edited by Cris Palomino on
  • RarethRareth Posts: 1,462
    edited December 1969

    just when I finally jumped on the Pixar campus bandwagon, the thread splits.
    oh well..

    Initial testing with a decent hdri image.

    Pixar-Campus_Test.jpg
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  • MEC4DMEC4D Posts: 5,249
    edited December 1969

    TIP :

    For everyone new to PBR here is a good link that explain what Physically Based Rendering is and the rules


    Physically Based Rendering Encyclopedia
    https://docs.google.com/document/d/1Fb9_KgCo0noxROKN4iT8ntTbx913e-t4Wc2nMRWPzNk/edit

This discussion has been closed.