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How do you make an object glow?

wildbillnashwildbillnash Posts: 756
in New Users

I have a few objects I would like to glow but can't figure out the combination or what settings to use.  Anyone out there knows?

Comments

  • Richard HaseltineRichard Haseltine Posts: 100,842

    Assuming this is daz Studio, Iray or 3Delight? Are you wanting them to be light soruces, or are you wanting to surround them with a glow effect, or both?

  • wildbillnashwildbillnash Posts: 756

    Sorry, yep, it's for Daz Studio 4.10.  I want a glow effect, not a light source for now.

  • Richard HaseltineRichard Haseltine Posts: 100,842

    There is a Glow option in Render Settings for Iray. Another way is to create secondary mesh around the item and set that to be nearly transparent - you can do that, for example, with Create>New Geometry Shell (more tha  once if it gives the best effect) and then adjust the Offset property in the Parameters pane and the Opacity/Cutout Oapcity in the Editor tab of the Surfaces pane.

  • wildbillnashwildbillnash Posts: 756

    I don't see a Glow option.  I clicked on the Render Settings tab, click on Iray, and there isn't an option for Glow.  Is it something I have to purchase seperately?

  • Richard HaseltineRichard Haseltine Posts: 100,842

    Sorry, I persistently get that wrong - in Render Settings Bloom was what I meant.

  • wildbillnashwildbillnash Posts: 756

    I suffer from brain-farts as well.  Where would I find "Bloom"?  I just checked under the Render Settings tab and didn't see it.

  • Richard HaseltineRichard Haseltine Posts: 100,842

    It should be in the Filtering group as I recall.

  • wildbillnashwildbillnash Posts: 756

    Where do I find the Filtering group?  I added the image of my screen.

    Screenshot (44).png
    1920 x 1080 - 534K
  • LeanaLeana Posts: 11,695

    You're looking at the "presets" sub-tab, check in "editor" or "advanced" sub-tabs.

  • wildbillnashwildbillnash Posts: 756
    edited February 2019

    What "editor or advanced sub-tabs"?

    Post edited by wildbillnash on
  • wildbillnashwildbillnash Posts: 756
    edited February 2019

    I finally found the sub-tabs and Bloom.  When I Enable the Bloom filter the image gets fuzzy.  Now what do I do?  Tried changing settings but I really do not see it glow.

    Post edited by wildbillnash on
  • wildbillnashwildbillnash Posts: 756

    Okay, I played around with it some more.  If I increased the brightness Bloom Filter Brightness Scale the asteroid gets brighter on one side.  Is this what the way to make it glow?  Is there a way to make it glow outward, radiating a different color?
    BTW, I think I found out why the image got fuzzy earler.  I forgot to click the Surface Selection Tool.

    Screenshot (49).png
    1920 x 1080 - 541K
  • JonnyRayJonnyRay Posts: 1,744

    Here is what I would try for that object.

    1. Duplicate the asteroid object (Edit -> Duplicate Node)
    2. Name the duplicated one "Glow" for easier reference.
    3. Parent Glow to the asteroid so that when you move the rock, Glow will move as well.
    4. Scale the Glow up say to 120%
    5. On the surface settings for Glow
      1. Configure the Base and Glossy colors as you would like to see it glowing
      2. Put the same color in the Emission channel
      3. Change the opacity cutout to something low (2% or so, but experiment with it)
      4. To make the glow seem less uniform, you could also increase the Bump, Normal or Displacement strength values if there are any maps assigned to them.

    Now the bloom filter will be more interested in adding the bloom for your Glow object than the main one.

  • wildbillnashwildbillnash Posts: 756
    edited February 2019

    JonnyRay, I got as far as step 4.  But when I clicked on the Glow's surface tab i don't see options for Base and Glossy.  Am I at the right place?

    --Just added another pic after playing around with the controls.  Having trouble figuring out how to get the Glow to diffuse outward.

    Screenshot (51).png
    1920 x 1080 - 420K
    Screenshot (52).png
    1920 x 1080 - 595K
    Post edited by wildbillnash on
  • JonnyRayJonnyRay Posts: 1,744

    That's a 3Delight shader. You'll need to apply the Daz Uber Iray shader first then you'll see those surface settings.

  • wildbillnashwildbillnash Posts: 756
    edited February 2019

    What do you mean by maps for displacement, bumps, and Normal?  Do I need to breakout my Mapsco?  (Just kidding.)

     

    ---Okay, whenever I turn on Bloom my image blurs.  Looks like I can't use it for this option. Oh well.

    Post edited by wildbillnash on
  • Richard HaseltineRichard Haseltine Posts: 100,842
    JonnyRay said:

    Here is what I would try for that object.

    1. Duplicate the asteroid object (Edit -> Duplicate Node)
    2. Name the duplicated one "Glow" for easier reference.
    3. Parent Glow to the asteroid so that when you move the rock, Glow will move as well.
    4. Scale the Glow up say to 120%
    5. On the surface settings for Glow
      1. Configure the Base and Glossy colors as you would like to see it glowing
      2. Put the same color in the Emission channel
      3. Change the opacity cutout to something low (2% or so, but experiment with it)
      4. To make the glow seem less uniform, you could also increase the Bump, Normal or Displacement strength values if there are any maps assigned to them.

    Now the bloom filter will be more interested in adding the bloom for your Glow object than the main one.

    You can use a Geometry Shell rather than duplicating - uses slightly less memory.

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