Thanks anyway Rey!

2 of mine done for here that were constructed truely from source material for the glass:

source


manip


source


manip

Rey, That is AMAZING! Great details. I'll have to study that PSD file to see what's going on with all the layers. What's funny is I hid about half of the top layers and the pic still looked freakin' great to me!

that is some sweet work Rey from scratch, awesomeness

Sorry to waste everyone's time!! I wouldn't know lame from a wooden leg!

Mayhaps I should have said, "use gradients, lots of gradients!"

I defer to the artistes!

Rey... your right it is half finished...

30 mins and 2 chocolate bars later


Theres only one obvious mistake in it (it bugs the hell out of me but i wanna see if anyone else notices it...



http://img174.imageshack.us/my.php?image=fixmebm4.swf&width=320

ok for ya benifit.. although ya probably already know...

The glass you made looks more like metal.. as it has reflections and specular but lacks transparency.

When making glass the specular is twice as apparent than metal.

with hollow glass there are two specular ranges... (hold a pint glass up at a tangent to a light source like a moniter and it will become evident)

One on the front which is short and squashed and one on the back white is stretched. these to ranges give the glass its depth... but not only that but they are also not reflected in what would be considered a normal way...

technicallly when looking through a sphere or lens object you should get double vision of the objects behind. as your eyes can't focus on the objects in question

the glass also needs highlights where the shadows are

why.. light is not obstructed in the same way with glass. it is refracted so the shadwing areas are the relfected areas where previous light was obscured...
Where the glass is most dense at the edges is usually where you would find it.. but as with light, shadows cannot be cast onto the glass only slight shadowing can be shown in the reflection. (shadow is cast through glass not on it.)

and lastly can't stress this enough folks glass is translucent to a very transparent degree...

glass fix

Rey, Marco, Caf have very nice glass images.

Here are some links to traditional media representations of glasses, sometimes its really helpful to look at a painting or drawing or photograph to see how light interacts with glass, how the edges of glass objects work (sometimes white, sometimes black, sometimes pick up a distant color) how the reflections work, and how other objects are bent (refracted) by water or glass

pencil drawing of glass:

J D Hillberry pencil drawing

new to me, this painter has really realistic paintings of glass
Emily Zasada painting website for glass images

Another still life artist, Susan Kraus - these are quite nice to my eye

Susan Kraut -Studio Still Life with Tulips, II


Susan Kraut - Studio Still Life with Tulips, VI


my favorite painter, contemporary realist who often paints glass objects:

Janet Fish:

http://www.varoregistry.com/fish/index.html

http://www.newyorkartworld.com/images-def/afish/GreenGlassFrmAlexis-556x400.jpg

and below are some of my own drawings with glasses or glass jars- these are thumbnails, you can click to get the full images:

Conte Crayon:

Oil pastel:

another oil pastel:

True wisdom here! well done all.

This is an Ask the Experts Forum and I'm very excited reading and seeing this kind of stuff....so YAY, BLADE for starting it.

It's difficult enough drawing or painting an accurate glass object. More skill is necessary when using a computer program. (BTW, Quick Chop Rey...WOW!)

Even Kurakima's glass pot resembles metal if you allow your eyes to see it that way.
http://photoshopcontest.com/view-entry/70480/display.html

And, dammit, Marx, I can nearly understand everything you've typed...scary.

We can spend a lot of time dissecting a great psd while the premise eludes us.

Quick someone check the temp in hell.

See Marx, if you posted like that more often then people would actually pay attention to you more.

I've been following this thread quite closely. A while back I wanted to do a glass chop for this contest. I wanted to turn the cabin into a syrup bottle. But I didn't know how to pull it off. Rey and a few others tried to help but I just couldn't do it. Plus I still had Gimp at the time.

Edit: while looking for the contest, mentioned above, I found another great glass entry:

http://photoshopcontest.com/view-entry/100721/fun-with-physics.html

It's a lovely 58 degrees...

Fahrenheit or Celsius?

.

Here's something I did quickly..

First, I found this picture of a unique wooden carving online:




Then, using a lot of gradients and the specular thing with the reflections and refractions and glassnification, I was able to produce the following:



It's not perfect but you get the idea.

hahaha@badcop

Maybe you can make a tutorial..