Model AND Render this: Lavalamp
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@solo said:
Rich, I'd difinately make the glass with thickness and apply a Twilight normal glass (not thin glass) The liquid inside will be water I guess with a very slight color and the lava can be a SSS material (try Rubber from Twilight and increase absorption)
Use a basic rectangular plane as light and try it with different strengths and positions until you get the right look I guess.With Trilight (and Kerkeythea) one must model so that surface normals do point from inside to out; from the wax to the water, from the water to the glass and from the glass to air. Use dielectric materials. Wax will need SSS.
Principle http://www.kerkythea.net/phpBB2/files/dielectrice_glass_modeling_normals_echo2web_129.jpgNice render solo!
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Just to show how great Solo is at rendering, I will submit the anti-lava lamp. I call it the ping pong rocket!
I did a really quick attempt so I could play with Thea. I need to learn how to make sss mats in thea,among other things....I think I will go back to bridges.
At least right now, I'm second best! (Until somebody else enters...of course)
TBG
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I'm working on this retro-styled model:
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@solo said:
lava can be a SSS material (try Rubber from Twilight and increase absorption)
By absorption, do you mean the SSS Density setting? Do you have a suggestion on how high it should be?
@solo said:
Use a basic rectangular plane as light and try it with different strengths and positions until you get the right look I guess
At the moment i'm using the circular base below the liquid as a light emitter. Is this the right approach?
Great challenge, very informative
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Alright Pete, you are an evil man
All I set out to do was make a simple lava lamp and post a render. Well I have spent a good portion of my afternoon / evening on this now although most of it has been fun.
As for the model this, here are some shots of my model. And yes, I know I am too detailed sometimes. I went for the bottle cap and all
I have a couple renders planned, one cooking right now.
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Great model and render Solo. TBG, I like your render, what is your tool. Interesting note is that Solo's photos of his collection have a wider contrast, and some incompatible colors that all add to the illustrations sense of reality!-)
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Hmm. some interesting reflections from the HDRI.
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Overnight progressive.
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Hi,
I'm doing something drastically wrong to get this result...
There's strange vertical bars around the glass?
I've a feeling I've made a fundamental mistake in the model but i can't see what!
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Did you use a glass texture with lines? Its a cool model.
My lava now looks like marshmallows!
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Another shot.
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Here my attempt, rendered in Thea. I would love to post the model, but strangely the image attached below is all that comes up in wireframe mode. I am a little suspicious of the WxSu plugin. I have had a few things give me problems in SketchUp since installing it along with the SU to Thea exporter.
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Ok here's failed attempt #2
As you can see i'm getting the same result as before only more pronounced? Here's my model exploded...
And finally here's the .skp which is render UNready for Twilight, can anyone tell me my mistake?
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Rich,
Is the water occupying the same 3D space as the glass? -
Your water was smoothed too much...see the top and bottom edges on the attached pic:
This is a small test I ran after fixing the water smoothness and scaling the water and lava down by 5%. The issue appears to be fixed
...now on to fixing the lava material, but that's up to you 
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that's what I call a clean mesh dale! 0_0
rclub. Maybe it looks more like a frost lamp more than a lava one, but I love it, lol. How did you do that?
I made a quickie model, but I've been struggling with the render settings and haven't acomplished nothing nice...
I always have a lot of troubles when trying to create transluscent materials in Kerkythea.Anyway, here's my lamp after aprox. 2 or 3 hours
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@unknownuser said:
Ok here's failed attempt #2
It not just smoothing, but there quite a lot issues how interfacing from material to material should be done. You should avoid intersecting meshes and airgaps. I believe there are examples of Kerkythea/Twilight water liquid interfacing, if my earlier link to basic principle did not help. This is same, only far more complex.
Thea has a slightly different way to do material interfacing... Just drop by in Thea forum and we continue there in details, if you have issues.
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Hi Guys,
Had a free night tonight so thought I'd have a little crack at this one. I'm on my laptop and have no rendering software (or power to run it!) so I'm just posting the sketchup model for now. Twilight render will follow in a few days when I'm home.
Puck
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Fletch, Thanks for the tutorial.
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Very nice detailed explanation, Fletch...thank you!
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