test on glass and juice

[pengo]

I like them very much


..but I think the glass need to be more dense especially at the bottom (where the glass has more thickness ) like gijs if I remember well on some glasses

Is only my little opinion

But anyway are great images

[Inxa]

Nice Work Giraffe

Hi,

Hey really nice work. like that one with the green background.

That yellow one really looks nice. really juicy juice :P . Great renders and glasses .

Regards,

Thanks.

Inxa

[Mirko]

@Giraffe: you speak german, right? Then I will try to explain in german language what blueplanet has meant:

Du solltest berücksichtigen, dass Flüssigkeiten eine Gewisse Oberflächenspannung etc. haben. Wenn Du Dir ein Glas Wasser genau anschaust, wirst Du feststellen, dass der äußere Rand der Wasseroberfläche leicht nach oben geht.
Hab zwar nur ein schlechtes Bild ergoogeln können, aber hier sieht man das Phänomen am eingetauchten Finger:
http://www.howellschools.com/~voyage.../stension2.JPG

Hier noch eine Zeichnung dazu:
http://mlucom6.urz.uni-halle.de/~laagz/Image102.gif

Ein kleiner Nebeneffekt davon ist nämlich, dass es dann so aussieht als wäre die Wasseroberfläche vielleicht 1-2 mm stark wenn man von außen (von der Seite) auf das Glas schaut.

I think that is what blueplanet has meant.



Mirko

[giraffe]

hi again
thanks again for replies...

I am sorry I dont know german

[evelyn]

Giraffe,

Excellent renders!

Evelyn

[evelyn]

Free language translator.

http://www.translationbooth.com/tb/a...education.html

Evelyn

[jedisalf]

1- I think she speaks french, but it would be easy if you clarify this Giraffe, in order to explain what bluepanet said.

2- Blueplanet is right, and now that i think about it, i think this is a flaw in 98% of the renders that contains liquids.

I remember that from my chemestry class....that was more than 10 years ago on highschool, anyways, its easy to see this effect on a small radius cylinder, like those "essay tubes" for chemstry, when you fill them, you will see the meniscus (dunno if its well written), imagine you have a glass of water, and a contact lens, the size of the glass radius (pretty big conatct lens), you dropped the contact lens inside the glass with water and the lens stays floating on top with the "belly" down, that curve shape is the meniscus, so the water top is not horizontal like most of the renders do, but its concave.

[blueplanet]

confused yet?

Since this thread lives on, I have posted two images (however poorly rendered) to show what the meniscus actually is.




See the slight upturn at the surface of the liquid around the inside edge of the glass? That's a meniscus.

Yes mirko, it's an attribute of surface tension.

Take a look at a glass of liquid in a real environment. The menicus reflects and refracts light in unpredictable ways.

My 3D meniscus doesn't act like a real one since it reflects only the studio setup and some hdri. It needs some work!

Bye bye,
Naomi

[aroma]

translation

Giraffe: Let me know in what language you would like a translation, and I'll see if I can do it for you...

[UBIKmh]

Aroma, try Turkish.

Marc

[odie]

your glass material really working right. Can i share your glass material setting.

[giraffe]

thx friends
I really understood it well now with images.
thx a lot for explaining me

blueplanet: we should also change IOR value, I think (in cg works). correct? in mine I changed the IOR value of the upper poligon.

odie:
glass settings are:
reflect: white fresnel
refract: white
fog color: rgb 151,192,211 with mult: 0.02

[blueplanet]

yes yes

Yes I think so.

[Rolojero]

Excellent Images Girafe!!

I like a lot the pulp effect of the juice!!

good Giraffe!!!

[odie]

thanks a lot for sharing, anyway merry christmas and happy new year