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Volumetric Effects in Daz Studio.

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  • Richard HaseltineRichard Haseltine Posts: 102,236

    ecks201 said:

    I've managed to load a VDb, but the onscreen version is nothing like the example image.

    I get a blocky white cloud, instead of round and fluffy frown

    https://www.daz3d.com/forums/discussion/comment/7311281/#Comment_7311281 set scattering and absorption scattering to black, possibly lower density.

  • RobotHeadArtRobotHeadArt Posts: 917

    For reference, the VDB shader is included in Default Resources for DAZ Studio 4.20+ and is located in \Shader Presets\Iray\Daz Volume\

  • WendyLuvsCatzWendyLuvsCatz Posts: 38,484
    edited February 2022

    only works on one surface on an object or figure by looks, legs for figures

    and WTF? deleting all the surfaces AND Groups with the geometry editor does not have any effect, still only legs

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    Post edited by WendyLuvsCatz on
  • PetraPetra Posts: 1,156

    jag11 said:

    It's true! They incorporated OpenVDB, made a custom Shader Mixer Shader as described in links provided by Richard and made a Quick Render of a rabbit.

    Volume looks pixelated(voxels) but I assume I missed something.

    How did you do that? 

  • Ghosty12Ghosty12 Posts: 2,060
    edited February 2022

    RobotHeadArt said:

    For reference, the VDB shader is included in Default Resources for DAZ Studio 4.20+ and is located in \Shader Presets\Iray\Daz Volume\

    Thank you for the info, unfortunately I still have no idea on how to use shader though.. sad Okay I think I am getting the idea after perusing that link supplied by Richard, hopefully soon there will be a tutorial on how to use all this new stuff to its fullest.. smiley

    Post edited by Ghosty12 on
  • FirstBastionFirstBastion Posts: 7,822
    edited February 2022

    Potentially a great addtion to the toolset. Watching with interest.

    Post edited by FirstBastion on
  • jag11jag11 Posts: 885

    Petra said:

    jag11 said:

    It's true! They incorporated OpenVDB, made a custom Shader Mixer Shader as described in links provided by Richard and made a Quick Render of a rabbit.

    Volume looks pixelated(voxels) but I assume I missed something.

    How did you do that? 

    You can use the new "Simple OpenVDB MDL Volume" shader under Shader\Effect on the Surfaces tab. You'll need a VDB file. There are plenty to play at OpenVDB - Download

  • SaphirewildSaphirewild Posts: 6,670

    I wish I would have gotten a warning about needing a new Graphics Card to use 4.20 for good lord sakes.

    Now I am stuck with a rogram I can not use because I can not afford to get a new GC right now!!

  • PetraPetra Posts: 1,156

    jag11 said:

    Petra said:

    jag11 said:

    It's true! They incorporated OpenVDB, made a custom Shader Mixer Shader as described in links provided by Richard and made a Quick Render of a rabbit.

    Volume looks pixelated(voxels) but I assume I missed something.

    How did you do that? 

    You can use the new "Simple OpenVDB MDL Volume" shader under Shader\Effect on the Surfaces tab. You'll need a VDB file. There are plenty to play at OpenVDB - Download

    Thank you, I went to the site you linked but I do not know what to download and how to get it into DS. 

  • PsychoNautPsychoNaut Posts: 63

    Ivy said:

     

    This is a model i made of my car a 1998 - 3000gt vr4 I rendered these scenes in iray  using stone masons urban future3 set

     

     

     

     

     

     

    WOW!

    Beautiful VR-4 - and the interior is spot on

    I love these cars, it's irrational of me - but I don't care. Had one for a long time, had to sell it - but that's another story.  

    So cool to see someone else appreciate these rare vehicles, you modeled it perfectly

  • IvyIvy Posts: 7,165
    edited February 2022

    PsychoNaut said:

    Ivy said:

     

    This is a model i made of my car a 1998 - 3000gt vr4 I rendered these scenes in iray  using stone masons urban future3 set

     

     

     

     

     

     

    WOW!

    Beautiful VR-4 - and the interior is spot on

    I love these cars, it's irrational of me - but I don't care. Had one for a long time, had to sell it - but that's another story.  

    So cool to see someone else appreciate these rare vehicles, you modeled it perfectly

    Thank you

     I made the textures from using pictures of my car in segiments. My 3ds programs is rather old so this has been a WIP for about 2 years  I started by downloading the actual parts diagrams of the car parts from 3si.org. a car club we belong too.and made the parts one piece at a time and parented them in place so each piece has its own bones for customizing I made 4 different types of rims for it as well as 5 different colors. I have a few costom tail fins I made for renders of it i did for users of 3si.

    I was going to sell this model.  but its been so much work i think I'm going to just keep it as a one of a kind for myself for now.  

     

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    Post edited by Ivy on
  • SimonJMSimonJM Posts: 5,997
    edited February 2022

    RobotHeadArt said:

    SimonJM said:

    My main fear is that the volumetrics will demand a version of nVidia gfx driver that is not supported by Win 7.

    The Iray update thread lists the minimum driver versions. https://www.daz3d.com/forums/discussion/529616/daz-studio-pro-4-16-1-was-4-15-1-nvidia-iray#Comment_7277511

    Just upgraded to 4.20. Before I did I downlaoded, via GeForce experience, the latest driver suggested. Of course it did NOT install! The ewrror was a simple, "an error happened' type message with no info or detail. I wnet to the nVidia site and got the driver for my TITAN X (Pascal) but in mid-download I checked it's compatabilty and saw it was NOT certified fior use with my 1050Ti! So another search, using the 1050Ti as the model of card and a different version of the same level of driver was suggested, and this one WAS certified for the TITAN and the 1050Ti.

    And yes, DS works, Iray works and the ground fog works

    Post edited by SimonJM on
  • Charlie JudgeCharlie Judge Posts: 12,866
    edited February 2022

    Saphirewild said:

    I wish I would have gotten a warning about needing a new Graphics Card to use 4.20 for good lord sakes.

    Now I am stuck with a rogram I can not use because I can not afford to get a new GC right now!!

    Will it run on a GTX 970  with updated drivers?

    Post edited by Charlie Judge on
  • felisfelis Posts: 4,606

    Charlie Judge said:

    Will it run on a GTX 970  with updated drivers?

     

    Maybe not the most impresive, but yes.

  • Charlie JudgeCharlie Judge Posts: 12,866

    felis said:

    Charlie Judge said:

    Will it run on a GTX 970  with updated drivers?

     

    Maybe not the most impresive, but yes.

    Thanks 

  • Charlie JudgeCharlie Judge Posts: 12,866
    edited February 2022

    I installed DS 4.20 on both my computers (one with GTX 1080 ti and the other with a lowly GTX 970). While I haven't tried volumetrics yet, I am definitely impressed both with the speed the DS program loads and with the  speed the Iray view port responds and renders.

    Post edited by Charlie Judge on
  • PetraPetra Posts: 1,156

    I do not even get mine to work at all, as I have NO clue how to get started.

     A tutorial would be very good, at this point.

    I downloaded free ones, but no clue how to get them into Daz Studio.

    I downloaded that sample scene that someone was so kind to post, but the scr

  • kwanniekwannie Posts: 869

    It is interesting following the buzz about volumetrics but I am gathering once again it is only intended for still photo renders, is the any animation in the works for the volumetrics? If,not why not just stick with Fludios or Ireal clouds?

  • WendyLuvsCatzWendyLuvsCatz Posts: 38,484
    edited February 2022

    I am ready to give up now and yeah think I am sticking with my Carrara and Unreal etc volumetrics that don't take a lot of brains to use devil

    heck even using 3Delight for volumetrics is an easier option at this point

    Post edited by WendyLuvsCatz on
  • kwanniekwannie Posts: 869

    Wendy,Can the the Volumetrics in Carrara be rendered with an alpha channel and imported into a layers capable Video editing program?

  • WendyLuvsCatzWendyLuvsCatz Posts: 38,484

    kwannie said:

    Wendy,Can the the Volumetrics in Carrara be rendered with an alpha channel and imported into a layers capable Video editing program?

    yes 

  • WendyLuvsCatzWendyLuvsCatz Posts: 38,484
    edited February 2022

    extra post so will use to add

    iray is also slow so images are realistically all it is suitable for, heck Bryce scenes with volumetrics render faster

    weekend, this forum is getting flaky again

    Post edited by WendyLuvsCatz on
  • RobotHeadArtRobotHeadArt Posts: 917

    Mini-tutorial:

    1. Go to the Create menu, choose New Primitive.
    2. Create a cube that is 1 meter in size.
    3. Select the cube and go to the cube's surfaces.
    4. Select the Default surface of the cube.
    5. Go to \Shader Presets\Iray\Daz Volume\ in your content library
    6. Apply Simple OpenVDB MDL Volume shader.
    7. The cube's Default surface will now have a property Volume File.  Click the ... to open a file browser and locate the .vdb file you have downloaded or created.
    8. Depending on the source of the .vdb you may need to go the cube's Parameters and change the scale.  Houdini .vdb files will need to have the Scale set to 10000 to be correctly displayed.

    The viewport offers no representation of the VDB so you will need to use Iray Preview render to see it.

  • Richard HaseltineRichard Haseltine Posts: 102,236

    RobotHeadArt said:

    Mini-tutorial:

    1. Go to the Create menu, choose New Primitive.
    2. Create a cube that is 1 meter in size.
    3. Select the cube and go to the cube's surfaces.
    4. Select the Default surface of the cube.
    5. Go to \Shader Presets\Iray\Daz Volume\ in your content library
    6. Apply Simple OpenVDB MDL Volume shader.
    7. The cube's Default surface will now have a property Volume File.  Click the ... to open a file browser and locate the .vdb file you have downloaded or created.
    8. Depending on the source of the .vdb you may need to go the cube's Parameters and change the scale.  Houdini .vdb files will need to have the Scale set to 10000 to be correctly displayed.

    The viewport offers no representation of the VDB so you will need to use Iray Preview render to see it.

    I am told that a (potentially reduced resolution) polygonal version of the VDB can be imported (after having been exported from a source application) and used instead of a simple cube to give a pre-render preview of what the volume looks like (shape, position, etc)

     

  • PsychoNautPsychoNaut Posts: 63

    Playing with this, it's really neat, thanks DAZ 

  • Eggs ActlyEggs Actly Posts: 168

    Oso3D said:

    The big drawback of the haze volumes as they currently are is that the transition through the volume is very linear, and there's always a clear edge. With good composition, lighting, etc you can obscure those edges in a lot of cases, but... it's hard.

    I'm looking forward to volumes with better/feathery/etc edges.

    Spot on, Oso yes

  • GordigGordig Posts: 10,169
    edited February 2022

    I'm not seeing any way to increase voxel resolution. I exported a pretty high-res VDB out of C4D, and it looks like a Minecraft disaster when rendered.

    In C4D:

    Volumetric in DS:

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    Post edited by Gordig on
  • jag11jag11 Posts: 885

    Gordig said:

    I'm not seeing any way to increase voxel resolution. I exported a pretty high-res VDB out of C4D, and it looks like a Minecraft disaster when rendered.

    In C4D:

    Volumetric in DS:

    Lower your Dentity Multiplier, start from 1 and raise it by small increments. Some volumes start voxelizing at values higher than 200.

     

  • GordigGordig Posts: 10,169
    edited February 2022

    Increasing the density multiplier past 1 just makes it even more jagged.

    2:

    5:

    10:

    100:

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    Post edited by Gordig on
  • CybersoxCybersox Posts: 9,078

    Oso3D said:

    The ghost effect (namely, culling backfaces) would be nice, but has nothing to do with volumetrics.

    You CAN make a transparent figure, or a figure made of haze, right now. It's just limited because of the backfaces (particularly the mouth and fingers, where surfaces are really close together)

     

    I'm super excited about improvements in volumetric capabilities in Daz Studio!

    Or... you could just do it the way that stage technicians and magicians have been doing it for nearly two centuries using the "Pepper's Ghost" effect.  If you've been to one of the Disney Haunted Mansions, you've seen this with your own eyes on an epic scale in the ballroom and several other places, and the results are flawless.  All you have to do is put a semi-reflctive plane across the middle of the scene at a diagonal, then place the item to be turned into a ghost off camera at an angle where it's reflection is scene by the the camera, and then add a solid back backdrop behind it so that only that object is reflected.  You can adjust the brilliance of the ghost by adjusting the lights that only shine on it while you can adjust the translucency by changing the reflectiveness of your two way mirror... and doing it in Studio means that you can parent the mirror and ghost to the camera, so you can move through a scene while the figure stays in place.  (Or, you could just do it in post using Photoshop, Gimp or the image software of your choice.)  

     

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