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 Post subject: Gel with bubbles
PostPosted: Fri Sep 10, 2010 1:31 pm 
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Joined: Mon Aug 20, 2007 2:49 pm
Posts: 515
Location: Warwickshire, UK
Hi everyone. We've just recieved a project where we need to render a product which includes a clear plastic tube with gel inside. This would normally be fine but the gel is packed with hundreds of tiny bubbles/air pockets. I'm just wondering what people think might be the best way to go about this.

Would it be to model the gel with the bubbles inside and set to a gel like material, assign a texture to a solid model, add the bubbles in post? I've attached a couple of images to demonstrate the sort of effect I mean:

Image Image

Any thoughts or ideas would be great. Thanks!

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 Post subject: Re: Gel with bubbles
PostPosted: Fri Sep 10, 2010 3:27 pm 
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Joined: Thu Sep 06, 2007 8:49 pm
Posts: 120
Location: Kyiv, Ukraine
I would try to use instances and scatter hundreds/thousands of spheres inside.

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 Post subject: Re: Gel with bubbles
PostPosted: Fri Sep 10, 2010 5:47 pm 
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Joined: Sun Jan 07, 2007 7:23 pm
Posts: 1421
Location: halfway through SUPPA!
this is where i would start:

-set position object location to "volume"
-set speed to "0"

Image

here's quick render using ags materials... hope this helps :)

Image


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 Post subject: Re: Gel with bubbles
PostPosted: Fri Sep 10, 2010 6:25 pm 
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Joined: Mon Aug 20, 2007 2:49 pm
Posts: 515
Location: Warwickshire, UK
Thanks, guys!

ababak: This idea sounds like a good bet. My worry is rendering almost 3 layers of transparent materials, one - maybe two - of which include SSS. May take a long time to clear. Though I could do it in stages and composite together... tests to follow!

rusteberg: Sounds good. I'm using SolidWorks which has veeeery different techniques and tools to Max, but I think I could translate what you've mentioned into the SolidWorks equivalent.

Thanks again. I'll post results as and when I can. :)

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 Post subject: Re: Gel with bubbles
PostPosted: Fri Sep 10, 2010 6:28 pm 
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Joined: Sun Jan 07, 2007 7:23 pm
Posts: 1421
Location: halfway through SUPPA!
solid works?.... ewwwwww, yucky. :mrgreen:


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 Post subject: Re: Gel with bubbles
PostPosted: Fri Sep 10, 2010 10:20 pm 
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Joined: Sat Nov 26, 2005 11:12 am
Posts: 1510
Hey Rob,

Maybe this will get you started very effect too might need to tweak the maps to get a variation in bubbles!

http://resources.maxwellrender.com/sear ... v2=0&tipo=

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 Post subject: Re: Gel with bubbles
PostPosted: Mon Sep 13, 2010 10:54 am 
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Joined: Mon Aug 20, 2007 2:49 pm
Posts: 515
Location: Warwickshire, UK
rusteberg wrote:
solid works?.... ewwwwww, yucky. :mrgreen:


I know, I know... :( :p It started off well as we did a lot of engineering type stuff at first. But that's rapidly changing.

Tea_Bag wrote:
Hey Rob,

Maybe this will get you started very effect too might need to tweak the maps to get a variation in bubbles!

http://resources.maxwellrender.com/sear ... v2=0&tipo=


That looks great, thanks! I'll have a play around with that first. :D

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