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Thread: Orange Juice

  1. #1
    Registered User jonbee's Avatar
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    Orange Juice

    First, allow me to say how deeply impressed I am by the majority of users in this forum. Your skill and creativity keeps inspiring me to try and become better within the 3d medium.

    Been working recently to bring my amateurish skills up to something I can be a bit happier with. I decided to play around with some liquid and glass today.



    Any comments/criticisms are most welcome.

  2. #2
    Fórum áss clówn Hopper's Avatar
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    Nice work so far. Now see if you can put some reflections on the glass. Maybe 1 or 2 luminous poly's, or read up on implementing an HDRI for your reflection map.

    Cheers. Keep at it.
    Playing guitar is an endless process of running out of fingers.

  3. #3
    Registered User jonbee's Avatar
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    Quote Originally Posted by Hopper View Post
    Or read up on implementing an HDRI for your reflection map.

    Thanks for the feedback and are there any good locations for learning about use of an HDRI in lightwave?

  4. #4
    Craptose Intolerant UltraViolet's Avatar
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    Nice JonBee ... Yep, reflections are missing and glass is bit too thick and too narrow on the botom for my taste

    BTW, how did you embed letters into the glass ?

    Quote Originally Posted by Hopper View Post
    Maybe 1 or 2 luminous poly's ...
    Hopper, I keep hearing about this luminous poly crap all over the forum (and I used forum search and could not find anything about it in layman terms), only thing I got about it is that is suppose to help with caustics ...

    I have no idea how to create these lil' buggers, is it in the modeler ?

    Please give us noobs some tips, thanks
    These moments, as beautiful as they are, are evil when they're gone...

  5. #5
    Registered User jonbee's Avatar
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    Quote Originally Posted by UltraViolet View Post
    BTW, how did you embed letters into the glass ?
    For the purpose of this render, it's a bump map. I could switch to displacement mapping if I needed a view from the side.

  6. #6
    Animated Fool paulhart's Avatar
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    Good start, now get a glass of orange juice and look at it... Your orange juice is too "plasticky" and needs to have some translucency and light transmission, just my opinion... carry on.
    Paul
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  7. #7
    Super Member nickdigital's Avatar
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    Quote Originally Posted by jonbee View Post
    Thanks for the feedback and are there any good locations for learning about use of an HDRI in lightwave?
    You could try hdrlabs.com. Check out the Smart IBL plug-in.
    My opinions and comments do not represent those of my employer.
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  8. #8
    Registered User jonbee's Avatar
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    Okay, added HDR and modified the orange juice to have some sub-surface scattering.
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  9. #9
    Dimension the Third voriax's Avatar
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    Quote Originally Posted by jonbee View Post
    Okay, added HDR and modified the orange juice to have some sub-surface scattering.
    The SSS on the juice made a huge difference.. it looks like very thick/pulpy juice now..
    The glass still needs to be showing more reflections - at the moment it doesnt seem to be reflecting anything. Take a look at a glass in your kitchen, everything reflects off it. Maybe you need an HDR image that reflects more detail?

  10. #10
    Registered User jonbee's Avatar
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    Alrighty, figured out why my reflections were not showing up too well:
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  11. #11
    Fórum áss clówn Hopper's Avatar
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    Quote Originally Posted by UltraViolet View Post
    Hopper, I keep hearing about this luminous poly crap all over the forum (and I used forum search and could not find anything about it in layman terms), only thing I got about it is that is suppose to help with caustics ...

    Please give us noobs some tips, thanks
    Sure, no problem.

    As an example...
    1. Create a standard single plane 4 point poly (i.e. a rectangle).
    2. Give it a color (preferably a bright tonal color)
    3. Place that "panel" in your scene as a light source (keep in mind that it will be seen in reflections by default).
    4. Modify the surface properties of the panel and turn up the Luminosity channel.
    5. Test render and adjust colors and luminosity to taste.

    In image 1, you can see I've placed two offset polys in front of the subject (marked in red). I added a black border because I wanted the border to show in the reflection (looking at the reference pic, you'll understand why). I also created an entire room so that I could get nice even radiosity bounces to create a more naturally lit scene as if it were a product shot type of setup. It's not totally necessary, but it made it easier to adjust the lighting intensity without using the ambient light (which can wash out some textures if not used sparingly).

    I added luminosity to the far "back wall" poly and the "ceiling" poly directly above the subject (also marked in red). I also gave the ceiling poly a warmer tone (more red). I did this so that I could adjust the overall tonality without having to constantly tweak the surface attributes of the subject.

    In image 2 you can see the very basic surface setting for the left luminous poly (the right is identical).

    You can see the final result in image 3. Notice you can see the luminous polys in the reflection as desired.

    Image 4 was the original photograph that served as my reference.

    I could have easily produced the same end result by using standard lights, but the poly setup was easy, I already had the scene from an older project, and it makes for a much faster render than other lights. With the way I have it set up it's a bit odd in Layout, but then again... it worked and texturing/lighting is not something I'm particularly good at.

    There were only two area lights used in this scene and the render time was less than 1.5 minutes (on a 4.1GHz OC'd Q6600). I could have cranked some of the basic render settings to eliminate some of the aliasing artifacts and overall quality, but it was for the speed modeling challenge and final output wasn't too terribly important.

    Hope this clarifies the mystery for you. I've been there. (still there most of the time).

    EDIT: I have included the robot object (broken up into layers for study) and the entire scene for you to play with.
    Just mess around with the settings and see what you can come up with. Keep in mind that the render settings are low... i.e. RPE, bounces, AS, etc... If you crank them up, the lights will blow out the scene. You'll have to tone down the luminosity, and light intensities.
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    Last edited by Hopper; 10-14-2010 at 07:39 PM.
    Playing guitar is an endless process of running out of fingers.

  12. #12
    Registered User jonbee's Avatar
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    Thanks very much for the lesson Hopper
    Imma look into testing this out.

  13. #13
    Fórum áss clówn Hopper's Avatar
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    Quote Originally Posted by jonbee View Post
    Thanks very much for the lesson Hopper
    Imma look into testing this out.
    You're welcome. But don't read too much into the Layout setup. It was poorly assembled and you would never use these lighting (intensity) and render settings normally. You can get the same results by adjusting the render settings and bringing all the lights down significantly.

    This would be a better lesson in how to NOT setup a scene. Set all the lights and luminosity back down to 0, adjust the render settings to a higher quality first (i.e. bounces, quality, etc.), then bring the luminosity and light intensity up slowly.

    I had quickly blown all the lights out because of the poor render settings, which makes the scene hard to work with inside Layout.

    You'll see what I mean when you open it up.
    Playing guitar is an endless process of running out of fingers.

  14. #14
    Craptose Intolerant UltraViolet's Avatar
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    Thanks Hopper, I really appreciate this
    These moments, as beautiful as they are, are evil when they're gone...

  15. #15
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    thats very real looking to me.
    I want a glass of orange juice now.
    brb

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