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View Full Version : Glass and colored liquids: Intense Dielectric test



COBRASoft
11-14-2009, 06:05 PM
Hey all,

This is a simple setup. 4 glasses, 4 liquids in 4 colors. All done with dielectric material. Took over 2 hours to render on my I7.

Grreetings,
Sigurd

speismonqui
11-19-2009, 03:24 PM
really nice!
Are u using caustics?

COBRASoft
11-20-2009, 04:44 AM
No, I really want to add caustics, but never got them right.

I'll try with luminous polys next instead of HDRI.

mike_stening
12-16-2009, 09:43 AM
glasses and liquid look sweet but the shadows just dont look right, they are too defined imo
a change of light may help there as it looks like a distant or spot. an area or photometric might give better shadow results.
but like i said cant fault the glasses themselves

mike_stening
12-16-2009, 09:46 AM
heres a shot showing what i kinda mean though the lighting is way too intense you get the idea
http://www.peterpurton.com/images/Colours%20and%20textures/Coloured%20glasses%20450.jpg

sampei
12-16-2009, 11:37 AM
cracking glass surfaces...I have a question, I'm using the dielctric node on a wine bottle but I've noticed it wont letting me apply a UV map (which is for the label)...is there something I'm missing or will I have to model the label ?

mike_stening
12-18-2009, 02:45 AM
cracking glass surfaces...I have a question, I'm using the dielctric node on a wine bottle but I've noticed it wont letting me apply a UV map (which is for the label)...is there something I'm missing or will I have to model the label ?

you can put a map on the dialectric node but i played with that alot a while ago on work for budweiser and in the end the best method was to model the label and offset it very very slightly from the bottle object.getting it to map well was a real pain in the nodes. just copy some polys from your bottle and adjust them and if you like you could add a little thickness to it to mimic paper thickness.
ive used that method quite a bit since with no problems, its also good if the object isnt just a cylinder shape as the label will then wrap perfectly

sampei
12-19-2009, 06:59 AM
yes but when I plug the UV map to the color channel of the material node it just does not come up, and plugging it directly in the destination node doesnt seem to do the work...
anyway I think Ill just model it as you suggested, thanks Mike :thumbsup:

redlum
09-22-2010, 12:48 PM
Hey all,

This is a simple setup. 4 glasses, 4 liquids in 4 colors. All done with dielectric material. Took over 2 hours to render on my I7.

Grreetings,
Sigurd

What settings did you use on the blue glass? I can never seem to get colored glass to work. Thanks.

3DGFXStudios
09-22-2010, 12:55 PM
Crank up the absorption really high. If you have thin glass you need to put in higher values to see the effect and make sure your model is closed geometry.

Hopper
09-22-2010, 01:05 PM
You should also put a slight reflection of some sort on the surface of the liquid to get a sense of volume. Without it, the viewer may only see colored glass.

OnlineRender
09-22-2010, 01:35 PM
always add roughness to the glass even if its 0.2% or so I was told , absorption works on scale of the object , the more absorption the more colour it will hold .

redlum
09-23-2010, 10:55 AM
Crank up the absorption really high. If you have thin glass you need to put in higher values to see the effect and make sure your model is closed geometry.

Okay. So where is the absorbtion setting located?

OnlineRender
09-23-2010, 11:25 AM
Okay. So where is the absorbtion setting located?

edit node - delectric node - materials

http://onlinerender.com/Lwtest1.jpg

redlum
09-23-2010, 11:51 AM
You're awesome!

brunopeixoto
09-23-2010, 02:08 PM
Something like this:

OnlineRender
09-23-2010, 04:17 PM
Something like this:

Don't mean to "POP" your bubble , but since this thread has been officially :hijack: ,let the dielectric wars begin .....

http://onlinerender.com/pop2.jpg

brunopeixoto
09-23-2010, 04:24 PM
Sorry, Was not my intention.

OnlineRender
09-23-2010, 04:27 PM
Sorry, Was not my intention.

I know ! :rock:

" I like the image , reminds me of Retro TOP of the POPS "

http://www.topnews.in/files/Top-of-the-Pops.JPG

COBRASoft
09-23-2010, 07:51 PM
Good idea, I want to see some dielectric wars in here :). Show us your best glass/liquid/... render and please, add the node screenshot how it was achieved.