Bottle blue

[sidetrak]

This is the product of about an entire week of learning about glass textures, modeling, trial and error etc. This is an actual glass that i had crammed in the back of my cabinet, it was the most interesting looking one so I picked it. I used Coffee shader for the thickness. healthy criticism is very welcome:)

[sidetrak]

Sorry for double post, the imgage wouldnt load.

[DM67]

Hi sidetrak,
no criticism from me, excellent work ;)

[agv]

Superb!

I seem to have trouble getting the refractive index for glass just right. What is the coffee shader that you mentioned?

[Alan Daniels]

Very nice work. Hard to tell it's not a photograph (with the possible exception of the line aliasing, and that's only if you're looking for it). Top notch!

[handron]

Looks good. Only one crit: I think the white highlights are a little too pure. It looks just a tad unnatural.:)

[art]

Originally posted by agv
Superb!

I seem to have trouble getting the refractive index for glass just right. What is the coffee shader that you mentioned?

Here is link to the coffee! plugin. Its free:

http://koti.mbnet.fi/anttij77/Plugins/Sininenplaneetta_Plugins_Coffee.htm

And here is link to a thread that discussed the plugin and glass rendering:

http://vbulletin.newtek.com/showthread.php?s=&threadid=15733&highlight=coffee

p.s. The thread also contains the example scenes for the coffee! plugin, kindly provided by the plugin author.

[sidetrak]

Thanks for the replies guys!

The glass is a little too smooth, I know. I had a bump map in there but I had trouble getting it to look right so I lost it. What is there is actualy two layers, one as the refractive glass and the other the air layer, the problem is that both layers are turned outward, this probably creates the wrong refractions I had to do this becuase the coffee shader didnt like the setup and was looking very wierd . I dont think I had the right air to glass set up in the first place and I had to sacrifice refraction for the correct color, besides its not really that noticable. If somebody can tell me How to make this whole "air-to-glass set-up" I would apreciate it so that I can really make this as perfect as I can :)

with the possible exception of the line aliasing

Can you be more specific please?



Oh! BTW: I realized mid-render(about an hour into it =\ ) that the way it is set up to be is actually to make water inside of it. its hard to tell and it makes it look like i scewed up the refractions. I'll update soon:)

[Alan Daniels]

Originally posted by sidetrak
Can you be more specific please?

Sure! By "line aliasing", I was referring to this: Have a look at the white reflections in the blue part, at the bottom of the glass. You should see some stair-step jaggies that come from not having the anti-aliasing turned up high enough. But, that's strictly a matter of cranking up the render a little more; the overall work still looks great.

[sidetrak]

Yes, I now see what you mean. I will get rid of that .
Thanks!

[sidetrak]

I added a bump map, increased aliasing, added a logo, and changed the color and thickness a little bit. I think this has the correct layer set-up. but Is it an improvement? Let me know what you think

PS. this might be the last one since it takes about 3.5 hours to render, but criticism is still very welcome:D

[Anttij77]

Looks good! :)

I always like to see what people do with my shaders! :D
Nice job!

- Antti