Rendering workshop - Whisky Glass

Al Hart

What I am having a hard time with is rendering the "Whiskey" as if it were clear water. The Whiskey component always comes out dark and looks more like Coke. I have been messing around with lights, materials, alphas (which I don't understand anyway. .. .) etc.

How would i do that? Using Twilight. Any Idears out there?

Many of these Whiskeys seem too dark.

Try making it a bit more transparent, and try adding some light from the side rather than the top to lightin up the Wkiskey.

Whaat

@unknownuser said:

This has been running for 38 hours.

Hey modelhead. Some things to keep in mind with Indigo:
Indigo uses physically based parameters. One of the keys for a render like this is that you have to tell Indigo what medium 'displaces' another. This is done with the 'precedence' settings. For example, we want the ice to displace the whiskey so make sure that the precedence setting for the ice is a higher number than the whiskey.

Also, when modeling a liquid in a glass, it is important that the surface of the liquid is actually 'inside' the glass. Then, you need to ensure that the glass precedence setting is higher than the whiskey so that the glass will 'displace' the whiskey.

I would lower the absorption of the whiskey using the SketchUp opacity setting as well.

Hope this makes sense.

david_h

@unknownuser said:

I would lower the absorption of the whiskey

This would help a lot of people I would expect.

@unknownuser said:

glass precedence setting is higher
I am not sure what is meant by that.

Sorry I am so thick.

d12dozr

@unknownuser said:

@unknownuser said:

@unknownuser said:

glass precedence setting is higher
I am not sure what is meant by that.

Pretty sure that is just an Indigo setting

david_h

Fish glass.jpg

Things get a little mixed up around this here forum

museummaker

Win!

d12dozr

nice David...render looks good too

tomer1981

Hey guys.

For those of you who don't remember - I was the one who modeled the whiskey glass & ice cubes, and I'm quite honored that you all use it for your renders.

I'm not quite familiar with the rendering program/plugin you're using, but in the I rendered it with FryRender (found at: http://www.randomcontrol.com/). I saw you were discussing the lighting methods for the rendering, and I must tell you (what you probably already know) - LIGHTING IS EVERYTHING. In my render I didn't use any light fixtures. Instead, I used an HDRI, for IBL (Image based lighting). Meaning - a 32 bit image (.hdr format), which is "wrapped" around an imaginary sphere around the model, and is applying light to the entire model. This method is extremely efficient, and gives awesome results, in less time.

About the materials - Fryrender uses it's own materials, and it doesn't rely on the ones from sketchup. So, it doesn't matter what material you specify in sketchup (color, transparency, etc.) - the one you pick in Fryrender can be different.

I don't know your rendering program, and I don't know if it supports IBL, but from what I see - it gives pretty nice renderings.

You can check out more renderings i did with fryrender, and observe the lighting methods:
http://www.flickr.com/photos/41836385@N07/sets/72157622515799491/

Al Hart

@tomer1981 said:

Hey guys.

For those of you who don't remember - I was the one who modeled the whiskey glass & ice cubes, and I'm quite honored that you all use it for your renders.

I'm not quite familiar with the rendering program/plugin you're using, but in the I rendered it with FryRender.

Thanks for creating the model for us, and the initial rendering. I'm sure you noticed that I added a comment to the model that it was being used for this Rendering Workshop.

No particular rendering engine is featured in these workshops, but rather users of all rendering products are encouraged to demonstrate and improve their rendering skills through interaction with other users.

Thank you for your comments on how you produced your renderings.

For the record, here is tomer1981 rendering of the whiskey glass:

Sheik

One more for the road.
A small note on the model; you need to cut holes in the surface of the whiskey where the icecubes are, if you are using an physically accurate engine.
On the other hand this is actually a situation that render engines(atleast Maxwell) can´t get physically right. When light first enters from air to ice and then into whiskey, that ray of light will think it is in air, as it passed thru the backface of ice (not thru the frontface of whiskey). Still, the difference is probably very hard to see...

Al Hart

I started a new Workshop on Wood Cabinets.

These aren't as much fun as a Whiskey glass. But it might be worth honing your wood surfaces skills a bit...

http://forums.sketchucation.com/viewtopic.php?f=15&t=26005

richcat

Late as always - only just finished the bottle

My recent attempt

richcat

Another late one this time with octane, just as I open another bottle

I know - Wood texture probably not large enough, glass appears to be floating, and ice appears too silver? - but I'm looking through rose tinted specs, and I like it

whisky copy1a.png

david_h

Like I said. . .i am no judge of distilled beverages, but those look nice.

solo

Richard, I like the first one (above the Octane one), what render app did you use?

richcat

Hi Pete
IRender nXt, just honing my skills for the rendering competition, don't get much chance to render or model this time of year as most of my projects open in the next couple of weeks

thomthom

FYI to you lot rendering these ice cubes: if you render with VfSU you could submit it to the current ASGVis Render competition. The topic is ice: http://forum.asgvis.com/index.php?topic=7520.0

charly2008

Hi,

With Fryrender can even beginners achieve respectable results.