Author Topic: Translucent juices (KeyShot 4)  (Read 18936 times)

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Offline DriesV

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Translucent juices (KeyShot 4)
« on: February 03, 2013, 02:56:15 pm »
I felt the urge to expand on some experiments with translucent juices that I did in the past.
Now lighted with KS4 ADL (area diffuse light) light panels.

Dries

Offline DriesV

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Re: Translucent juices (KeyShot 4)
« Reply #1 on: February 03, 2013, 03:36:19 pm »
Anoter few juices... :P

Blue Curacao cocktail and plain old milk.

Dries

Offline TpwUK

Re: Translucent juices (KeyShot 4)
« Reply #2 on: February 03, 2013, 06:11:07 pm »
Milk looks a bit odd as if it's .... froffy almost

Martin

Offline DriesV

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Re: Translucent juices (KeyShot 4)
« Reply #3 on: February 03, 2013, 11:13:41 pm »
Milk looks a bit odd as if it's .... froffy almost

Martin

I know! ;)
I'm going to let the rendering cook a little longer. See if that helps take away the 'froffiness".

Dries

Offline PhilippeV8

Re: Translucent juices (KeyShot 4)
« Reply #4 on: February 04, 2013, 12:12:56 am »
You should add some of these:

Offline DriesV

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Re: Translucent juices (KeyShot 4)
« Reply #5 on: February 04, 2013, 01:02:55 am »
A less froffy milk. ;)

Dries
« Last Edit: February 04, 2013, 02:48:14 am by DriesV »

Offline DriesV

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Re: Translucent juices (KeyShot 4)
« Reply #6 on: February 04, 2013, 02:47:27 am »
You should add some of these:

There you have it. :)
Quick and dirty.

Dries

guest84672

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Re: Translucent juices (KeyShot 4)
« Reply #7 on: February 04, 2013, 06:51:27 am »
Great. Maybe they should be a little more translucent?

Offline DriesV

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Re: Translucent juices (KeyShot 4)
« Reply #8 on: February 04, 2013, 07:09:49 am »
Thanks for the advice, Thomas!

Lighting is pretty low-key, so it's a challenge to get the right amount of translucency. I'm also going to try to bump up the light panel brightness.

Anyway, this is something I did during my lunch break. ;)

Dries

Offline DriesV

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Re: Translucent juices (KeyShot 4)
« Reply #9 on: February 04, 2013, 07:49:10 am »
Slightly more translucent...

Dries

Offline DriesV

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Re: Translucent juices (KeyShot 4)
« Reply #10 on: February 04, 2013, 03:40:29 pm »
Upping the ante a bit.
I decided to go for a sort of "high-end marketing look". With all the tasty droplets and condensation to go with it. ;)
Condensation is all KeyShot work.

P.S.: I'm willing to compile a little howto on model preparation (CAD/modeling app side), material setup, lighting, textures...
If anyone's interested. ???

Dries
« Last Edit: February 04, 2013, 04:53:39 pm by DriesV »

guest84672

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Re: Translucent juices (KeyShot 4)
« Reply #11 on: February 04, 2013, 10:23:07 pm »
Juicy!

Offline zpaolo

Re: Translucent juices (KeyShot 4)
« Reply #12 on: February 05, 2013, 02:32:32 am »
I will hijack this post to talk about one issue I'd really LOVE to see solved by some rendering engine: when dealing with glass and liquid you always have to pull tricks like splitting surfaces, enlarging the liquid volume... it would be really really nice to be able to set up a liquid in a simpler way, letting the software resolve the contact between inner glass and outer liquid surfaces.

Lightwave 3D approached it, you can dictate that differences in surfaces along a ray path below a certain limit are treated as a single surface interface. Example: you have glass and liquid, the ray will travel through different surfaces: glass external > glass internal > liquid external > liquid internal spanning these interfaces: air/glass glass/air air/liquid and so on creating ugly artifact when the air liquid interface is. If the tracer could skip the "air" between glass and liquid and consider these interfaces as air/glass glass/liquid it would work perfectly and be physically correct.

I don't know if all of this makes sense, maybe I completely misunderstood how things work when refraction takes place, but in Lightwave it works, that's the only thing I know for sure :D

Paolo

Offline fario

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Re: Translucent juices (KeyShot 4)
« Reply #13 on: February 05, 2013, 02:40:05 am »
good idea!!!

Offline DriesV

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Re: Translucent juices (KeyShot 4)
« Reply #14 on: February 05, 2013, 04:27:58 am »
I will hijack this post to talk about one issue I'd really LOVE to see solved by some rendering engine: when dealing with glass and liquid you always have to pull tricks like splitting surfaces, enlarging the liquid volume... it would be really really nice to be able to set up a liquid in a simpler way, letting the software resolve the contact between inner glass and outer liquid surfaces.
...
Paolo

Hi Paolo,

That would indeed be great!
For now, the approach as outlined in these images is working fairly well for me for translucent liquids in glass.

The idea is to model your liquid as a solid and then model your glass around it (or the other way around :P) as surface geometry. Where there is liquid, there shouldn't be glass geometry.

Dries
« Last Edit: February 05, 2013, 04:30:43 am by DriesV »