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Show Us Your Iray Renders. Part IV

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  • Kevin SandersonKevin Sanderson Posts: 1,643
    edited December 1969

    sheedee3D said:
    Folks;


    Lets not forget about her and leave her out...she too deserves to be part of the Iray craze!...


    and by her...i mean Vicky 4


    rendered with HDR as the only light source.


    Pretty good!

  • kyoto kidkyoto kid Posts: 41,847
    edited June 2015

    dustrider said:
    Here is a link to a great HDRI of the Pixar campus that will easily give you shadows. The attached image was done with it, and no other light source - you can clearly see the shadow cast by the light in the image (default settings on the HDRI as I recall - except for the rotation)
    https://community.renderman.pixar.com/article/107/luxor-jr-panorama.html

    I've also gotten gtreat results with the Yosemite HDRI's by DT sold here.


    ...have that but the sun angle is too low to use with any scene models and in one test the shadows fell off to quickly (looked to diffuse) compared to those produced by the Iray sun.. Also have the Yosemite set and a couple of the ones I used have no defined shadows even though the ground plane should be in full sunlight.
    Post edited by kyoto kid on
  • mjc1016mjc1016 Posts: 15,001
    edited June 2015

    dustrider said:
    Here is a link to a great HDRI of the Pixar campus that will easily give you shadows. The attached image was done with it, and no other light source - you can clearly see the shadow cast by the light in the image (default settings on the HDRI as I recall - except for the rotation)
    https://community.renderman.pixar.com/article/107/luxor-jr-panorama.html

    I've also gotten gtreat results with the Yosemite HDRI's by DT sold here.

    Here's a list of a ton of HDRis....some are very, very nice and will give you shadows sharp enough to shave with...while others will give shadows softer than a fluffy kitten...

    Edited to add:

    http://www.daz3d.com/forums/discussion/57531/

    Post edited by mjc1016 on
  • SzarkSzark Posts: 10,634
    edited December 1969

    Kyoto Kid said:
    dustrider said:
    Here is a link to a great HDRI of the Pixar campus that will easily give you shadows. The attached image was done with it, and no other light source - you can clearly see the shadow cast by the light in the image (default settings on the HDRI as I recall - except for the rotation)
    https://community.renderman.pixar.com/article/107/luxor-jr-panorama.html

    I've also gotten gtreat results with the Yosemite HDRI's by DT sold here.


    ...have that but the sun angle is too low to use with any scene models and in one test the shadows fell off to quickly (looked to diffuse) compared to those produced by the Iray sun.. Also have the Yosemite set and a couple of the ones I used have no defined shadows even though the ground plane should be in full sunlight.I concur and now we know why as there isn't a defined small bright sun in any of them. :)
  • kyoto kidkyoto kid Posts: 41,847
    edited December 1969

    ...well after some experimentation discovered you do need to render in 360° panoramic mode to get the sphere correct. However when I go to save the "Light Probe'" selection is "greyed out" so I am unable to get the actual sun and shadows in the scene.
    When I go into the IBL tab in the Sky Lab and try to load it in I get an error message about he file needing latitude & longitude and it fails to load That is the only way it appears you can to insert a light probe.SO I cna get a nice sky and all but no defined shadows.

  • kyoto kidkyoto kid Posts: 41,847
    edited June 2015

    ...well spent a good part of the evening looking for decent free high res HDRIs with good sunlight and shadows for a particular scene. For Most either the sun was to low, or the cloud/sky details of the sphere did not show in the scene because of the angle I needed. Spent about five hours of my evening for nothing. One did have perfect sun (the LA Helipad at Evening) but it was only 3K so the background elements were noticeably blurry, even using the Finite Dome setting.

    We really need an Azure Skies or Skies of Economy with light probes and lighting for different times of day for Iray..

    Post edited by kyoto kid on
  • SzarkSzark Posts: 10,634
    edited December 1969

    Yeah it is a real shame the Michael didn't provide HDRI with Azure Skies. He said he made them really bright so with them having a nice bright small sun spot they might have been perfect.

  • SzarkSzark Posts: 10,634
    edited December 1969

    does anyone know of a good tutorial for making HDRIs in Vue that help with what Gamma settings to use for DS? I know how to set it up in Vue but don't know what Gamma and exposure settings to use. I have been searching for hours and haven't found one that makes any sense. I am rendering one now and will have a play but it would be nice to have that info to save a lot of time rendering.

  • SzarkSzark Posts: 10,634
    edited December 1969

    Well from what I can find I will need to learn HDRShop too.

  • jpb06tjpb06t Posts: 272
    edited June 2015

    I remember reading comments about bugs in Vue HDRI (it being not really "High"). Maybe things are OK now. As far as rendering is concerned, I vaguely remember that Vue supported directly the equirectangular (called panoramic if I remember well) projects.

    While we are on the subject, us Blender users do not forget that an HDRI equirectangular background is nothing more than:

    1 - configure Blender camera as "Panoramic";
    2 - configure the render dimensions resolution as X : 2A, Y: A for the desired value of A;
    3 - render the image;
    4 - save as OpenEXR or Radiance HDR.

    Could not be easier.

    EDIT: Vue users can have a look at this Youtube tutorial for the procedure.

    Post edited by jpb06t on
  • kyoto kidkyoto kid Posts: 41,847
    edited December 1969

    Szark said:
    Yeah it is a real shame the Michael didn't provide HDRI with Azure Skies. He said he made them really bright so with them having a nice bright small sun spot they might have been perfect.

    ...I believe he did but for use with 3DL/UE (so they probably still depend on a Distant Light) as that is what they are set up for.

    Thought of trying the Skies of Economy HDRIs for Reality but since I uninstalled Reality and Luxrender. the folder is now empty. Not going to reinstall as Reality4 bogged down scene loading in Daz.

  • kyoto kidkyoto kid Posts: 41,847
    edited December 1969

    Szark said:
    Well from what I can find I will need to learn HDRShop too.

    ...don't have 200$.

    So much for creating my own.

  • SzarkSzark Posts: 10,634
    edited December 1969

    Azure Skies are all tiffs and low res at that. I have the set. :)

    I would consider Skies of Economy if someone has them and would be kind and show me what they work like in Iray. ;)

  • SzarkSzark Posts: 10,634
    edited December 1969

    Kyoto Kid said:
    Szark said:
    Well from what I can find I will need to learn HDRShop too.

    ...don't have 200$.

    So much for creating my own.I have version one which was free. :)

  • Robert FreiseRobert Freise Posts: 4,573
    edited December 1969

    http://www.hdrlabs.com/
    has some utilities and links that may be useful to you

  • kyoto kidkyoto kid Posts: 41,847
    edited June 2015

    Szark said:
    Azure Skies are all tiffs and low res at that. I have the set. :)

    I would consider Skies of Economy if someone has them and would be kind and show me what they work like in Iray. ;)


    ...again I have that, however as I mentioned, uninstalling Reality4 seems to have deleted the HDRIs as well. The folder is still there, it's just empty.

    ETA

    ...just uninstalled then re-downloaded and reinstalled Skies of Economy to see if I could get the HDRI's back. Unsuccessful, so they definitely need Reality to be installed as well to show up in the folder under DazStudio/Library/Lights/Dimension Theory..

    Post edited by kyoto kid on
  • SzarkSzark Posts: 10,634
    edited December 1969

    well by the looks of the promos they might have the same problem with realistic directional shadows and btw the HDRI will be in Runtime/Textures as mentioned here http://docs.daz3d.com/doku.php/public/read_me/index/15328/file_list

  • kyoto kidkyoto kid Posts: 41,847
    edited June 2015

    ...but that's just the textures without the lightprobes. The full HDRIs were accessible thought the path I mentioned above in my edit.

    Post edited by kyoto kid on
  • L'AdairL'Adair Posts: 9,479
    edited June 2015

    Moved to MEC4D UNSHAVEN 2 for G2M thread: http://www.daz3d.com/forums/viewreply/842614/

    Post edited by L'Adair on
  • MelanieLMelanieL Posts: 7,720
    edited December 1969

    Kyoto Kid said:
    ...but that's just the textures without the lightprobes. The full HDRIs were accessible thought the path I mentioned above in my edit.

    You have Carrara I believe? In which case the .hdr files should be present there under Presets - Textures - DimensionTheory - SkiesOfEconomy - you could use them in DS but I can't say whether they give shadows or not as I haven't tried them.
  • Kevin SandersonKevin Sanderson Posts: 1,643
    edited June 2015

    More on making HDRI files in Bryce from Horo... looks like it can do a lot from this information:
    http://www.horo.ch/docs/mine/pdf/HDRIexport.pdf

    And some more tips from Horo in this short thread: http://www.daz3d.com/forums/discussion/53812/

    Post edited by Kevin Sanderson on
  • kyoto kidkyoto kid Posts: 41,847
    edited December 1969

    MelanieL said:
    Kyoto Kid said:
    ...but that's just the textures without the lightprobes. The full HDRIs were accessible though the path I mentioned above in my edit.

    You have Carrara I believe? In which case the .hdr files should be present there under Presets - Textures - DimensionTheory - SkiesOfEconomy - you could use them in DS but I can't say whether they give shadows or not as I haven't tried them.
    ...same issue, as they are the textures only, there will not be any light probes to create the "sun".
  • Midnight_storiesMidnight_stories Posts: 4,112
    edited December 1969

    I think using the sun for lighting is better than HDR for hair, it gets more of a sheen on it.

    Zombie_Lycan.jpg
    1300 x 1000 - 422K
  • L'AdairL'Adair Posts: 9,479
    edited December 1969

    midnight_stories said:
    I think using the sun for lighting is better than HDR for hair, it gets more of a sheen on it.

    It took me a while to figure out how to use the sun, but now that I know what I'm supposed to do, I like it at least as well as the Pixar Campus HDR.

    I'm not a fan of monsters, but that is a very nicely done render. I love the city in the "smog" in the far background.

  • kyoto kidkyoto kid Posts: 41,847
    edited December 1969

    ...to bad they couldn't come up with a set of a multiple "skies" that have different atmospheric conditions for use with the sun.

  • stem_athomestem_athome Posts: 526
    edited June 2015

    Hi,

    Kyoto Kid said:
    ...well spent a good part of the evening looking for decent free high res HDRIs with good sunlight and shadows...................................

    I can create some, but DS>Iray is a bit choosey with what will work.

    Can you test this HDR? It is [only] 5000x2500 (takes an age to render), but will make larger HDR(s) if that one is OK

    Direct download link:- https://www.mediafire.com/?ck4oc8ccepxtz44

    test.png
    600 x 300 - 170K
    Post edited by stem_athome on
  • SzarkSzark Posts: 10,634
    edited December 1969

    How did you create that Steve, Vue?? I can't test it myself as I am rendering and it will take a couple of hours to finish.

  • stem_athomestem_athome Posts: 526
    edited December 1969

    Hi Szark,

    Szark said:
    How did you create that Steve, Vue??

    The base render, yes.

    Rendered in Vue with Gamma correction/filters disabled, saved as HDR. Tone-mapped, then edited the image [sun brightness] to get shadows/direct light color.

  • sheedee3Dsheedee3D Posts: 214
    edited June 2015

    Sunday photo shoot fun


    HDR only ( view at full resolution )

    LEATHER.jpg
    1024 x 768 - 607K
    Post edited by sheedee3D on
  • SzarkSzark Posts: 10,634
    edited December 1969

    Steve athome said:
    Hi Szark,

    Szark said:
    How did you create that Steve, Vue??

    The base render, yes.

    Rendered in Vue with Gamma correction/filters disabled, saved as HDR. Tone-mapped, then edited the image [sun brightness] to get shadows/direct light color.


    Cool Tone mapped in Vue? Which setting did you use and what version of Vue do you have? I have 2014 Complete.

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