# Butt through Glass

**URL:** <https://forum.kirupa.com/t/butt-through-glass/261578>\
**Category:** design\
**Created:** [May 29, 2008, 12:08am UTC](https://forum.kirupa.com/t/butt-through-glass/261578 "2008-05-29T00:08:33Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![NeoDreamer](https://avatars.discourse-cdn.com/v4/letter/n/ccd318/32.png) [@NeoDreamer](https://forum.kirupa.com/u/NeoDreamer)\
**Post date:** [May 29, 2008, 12:08am UTC](https://forum.kirupa.com/t/butt-through-glass/261578/1 "2008-05-29T00:08:33Z")

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Just working on the butt through the glass distortion right now. I’ll do the reflections later. I’m not sure how to get a realistic distortion. Is the butt supposed to get wider or smaller? I’m leaning toward smaller…

![](http://img259.imageshack.us/img259/1209/newwavedh3.jpg)  
 ![](http://img444.imageshack.us/img444/3293/newwavegt5.jpg)

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**Author:** ![NeoDreamer](https://avatars.discourse-cdn.com/v4/letter/n/ccd318/32.png) [@NeoDreamer](https://forum.kirupa.com/u/NeoDreamer)\
**Post date:** [May 29, 2008, 4:14am UTC](https://forum.kirupa.com/t/butt-through-glass/261578/2 "2008-05-29T04:14:38Z")

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![](http://img81.imageshack.us/img81/4413/newwavebe7.jpg)  
 ![](http://img58.imageshack.us/img58/6251/newwaverq9.jpg)

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**Author:** ![MTsoul](https://avatars.discourse-cdn.com/v4/letter/m/91b2a8/32.png) [@MTsoul](https://forum.kirupa.com/u/MTsoul)\
**Post date:** [May 29, 2008, 4:27am UTC](https://forum.kirupa.com/t/butt-through-glass/261578/3 "2008-05-29T04:27:30Z")

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A few things.

First of all, she’s hot. Looks familiar. Who is she?

Second, the realism mostly comes from colour distortion (tinting), as opposed to shape distortion. One thing that does not look realistic in your manip is the colour density of the glass. If it’s a chair, then the bottom of the chair that holds the butt should have more glass when seen from the side, and thus darker since you are seeing more glass. In both the blue and red/orange manips, it’s darker on top, which looks out of place.

Then the shape distortion. There REALLY doesn’t need to be any. The distortion is usually caused by the RELATIVE depth of glass you see. That’s how glasses work. If the lens is 1m in diameter and 1cm thick, the effect of magnification is the same as if the lens is 10cm in diameter and 1mm thick, if seen from relative distances away (e.g. 5m away vs 50cm away). That said, the relative depths of a glass chair would be very small. And since it’s the same as a magnifying class, it would only magnify what’s close to the center, and not alter what’s on the edge. In other words, the effect would be the same if you used the Bubble filter (or whatever it’s called in PS where you click on something and that point gets bigger like a fisheye lens). Both butts look a bit awkward since the edge seem either pushed in or pulled out.

Last of all, she is pretty hot.

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**Author:** ![NeoDreamer](https://avatars.discourse-cdn.com/v4/letter/n/ccd318/32.png) [@NeoDreamer](https://forum.kirupa.com/u/NeoDreamer)\
**Post date:** [May 29, 2008, 5:14am UTC](https://forum.kirupa.com/t/butt-through-glass/261578/4 "2008-05-29T05:14:41Z")

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The girl is JoJo. I’m making it for someone’s fansite.

Darker and with no distortion. You sure this looks better? The glass chair looks convex, so shouldn’t it magnify the butt? Oh, and how are my butt drawing skills? The butt was not there in the original photo because she was sitting in a chair.

The reflection is obviously incorrect. It would be extremely hard to draw the back of the calf realistically .

![](http://img152.imageshack.us/img152/2189/newwavebw7.jpg)

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**Author:** ![MTsoul](https://avatars.discourse-cdn.com/v4/letter/m/91b2a8/32.png) [@MTsoul](https://forum.kirupa.com/u/MTsoul)\
**Post date:** [May 29, 2008, 5:15am UTC](https://forum.kirupa.com/t/butt-through-glass/261578/5 "2008-05-29T05:15:34Z")

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OH She’s JoJo right? I need to nip this chick in the butt before it gets out of my mind.

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**Author:** ![Nick5185](https://avatars.discourse-cdn.com/v4/letter/n/e95f7d/32.png) [@Nick5185](https://forum.kirupa.com/u/Nick5185)\
**Post date:** [May 29, 2008, 6:16am UTC](https://forum.kirupa.com/t/butt-through-glass/261578/6 "2008-05-29T06:16:13Z")

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looks good

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**Author:** ![mlk](https://avatars.discourse-cdn.com/v4/letter/m/e56c9b/32.png) [@mlk](https://forum.kirupa.com/u/mlk)\
**Post date:** [May 29, 2008, 7:10am UTC](https://forum.kirupa.com/t/butt-through-glass/261578/7 "2008-05-29T07:10:59Z")

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![](http://forum.kirupa.com/uploads/kirupa/6900/24272b9d06a84f0f.jpg) if it’s anything like glass than it is more than likely to make it bigger not small… she looks extremely weird with half a butt. And the legs are reflecting the wrong way

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**Author:** ![NeoDreamer](https://avatars.discourse-cdn.com/v4/letter/n/ccd318/32.png) [@NeoDreamer](https://forum.kirupa.com/u/NeoDreamer)\
**Post date:** [May 29, 2008, 4:56pm UTC](https://forum.kirupa.com/t/butt-through-glass/261578/8 "2008-05-29T16:56:52Z")

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I like your glare effect. Well, what am I supposed to do about the leg reflection if I’m not a real artist?

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**Author:** ![fasterthanlight](https://avatars.discourse-cdn.com/v4/letter/f/ecc23a/32.png) [@fasterthanlight](https://forum.kirupa.com/u/fasterthanlight)\
**Post date:** [May 29, 2008, 5:09pm UTC](https://forum.kirupa.com/t/butt-through-glass/261578/9 "2008-05-29T17:09:39Z")

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forget about distorting, add the glare though, and ditch the reflection of the legs.

considering this isn’t “really” glass, you don’t need to mimic the properties of real glass.

What i mean is, if you were illustrating a girl’s reflection in a window, or something, as opposed to sitting in translucent vector shapes, THEN you’d want to mimic real glass’s properites.

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**Author:** ![NeoDreamer](https://avatars.discourse-cdn.com/v4/letter/n/ccd318/32.png) [@NeoDreamer](https://forum.kirupa.com/u/NeoDreamer)\
**Post date:** [May 29, 2008, 5:22pm UTC](https://forum.kirupa.com/t/butt-through-glass/261578/10 "2008-05-29T17:22:43Z")

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Wow, this file is getting around 50 MB and slowing down my computer. I have a Geforce 8800GT 512 MB, Intel Wolfdale Dual Core 3.0 Ghz, and 2 GB 800 Mhz RAM. Why doesn’t the temperature of the graphics card go above 52 celcius (which is what it is at when it idles)? It can go to 75 celcius when playing Crysis. Shouldn’t it take some load off of the CPU since Photoshop is all about graphics?

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**Author:** ![w1sh](https://avatars.discourse-cdn.com/v4/letter/w/7feea3/32.png) [@w1sh](https://forum.kirupa.com/u/w1sh)\
**Post date:** [May 29, 2008, 5:26pm UTC](https://forum.kirupa.com/t/butt-through-glass/261578/11 "2008-05-29T17:26:05Z")

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> [@NeoDreamer;2332821](#):
>
> Oh, and how are my butt drawing skills?

Almost as good as mine. ( ))\< o o o \<– Pellet Bun®

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**Author:** ![MTsoul](https://avatars.discourse-cdn.com/v4/letter/m/91b2a8/32.png) [@MTsoul](https://forum.kirupa.com/u/MTsoul)\
**Post date:** [May 29, 2008, 5:59pm UTC](https://forum.kirupa.com/t/butt-through-glass/261578/12 "2008-05-29T17:59:11Z")

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[QUOTE=NeoDreamer;2333138]Wow, this file is getting around 50 MB and slowing down my computer. I have a Geforce 8800GT 512 MB, Intel Wolfdale Dual Core 3.0 Ghz, and 2 GB 800 Mhz RAM. Why doesn’t the temperature of the graphics card go above 52 celcius (which is what it is at when it idles)? It can go to 75 celcius when playing Crysis. Shouldn’t it take some load off of the CPU since Photoshop is all about graphics?[/QUOTE]  
Nope. Photoshop isn’t about graphics. It’s about image processing. All it uses is CPU for the complex math. Graphics cards are for 3D real-time rendering, which are mostly only applicable to games and 3D apps.

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**Author:** ![fasterthanlight](https://avatars.discourse-cdn.com/v4/letter/f/ecc23a/32.png) [@fasterthanlight](https://forum.kirupa.com/u/fasterthanlight)\
**Post date:** [May 29, 2008, 6:10pm UTC](https://forum.kirupa.com/t/butt-through-glass/261578/13 "2008-05-29T18:10:11Z")

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Still, he has more than powerful enough computer for it not to chug on a 50mb photoshop file…

unless your layers are unnecessarily complex …

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**Author:** ![sekasi](https://avatars.discourse-cdn.com/v4/letter/s/5f8ce5/32.png) [@sekasi](https://forum.kirupa.com/u/sekasi)\
**Post date:** [May 30, 2008, 12:41am UTC](https://forum.kirupa.com/t/butt-through-glass/261578/14 "2008-05-30T00:41:51Z")

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2GB Ram is on the low end side for heavy photoshop work though… Especially if you happen to be in OSX aka RAM EATER OF DOOM.

I got 8gb in my macpro and I’m considering an upgrade to 16.

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**Author:** ![TheCanadian](https://avatars.discourse-cdn.com/v4/letter/t/67e7ee/32.png) [@TheCanadian](https://forum.kirupa.com/u/TheCanadian)\
**Post date:** [May 30, 2008, 3:09am UTC](https://forum.kirupa.com/t/butt-through-glass/261578/15 "2008-05-30T03:09:12Z")

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Looks good but is it bad that I knew that was JoJo as soon as I saw the picture?

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**Author:** ![fasterthanlight](https://avatars.discourse-cdn.com/v4/letter/f/ecc23a/32.png) [@fasterthanlight](https://forum.kirupa.com/u/fasterthanlight)\
**Post date:** [May 30, 2008, 7:09pm UTC](https://forum.kirupa.com/t/butt-through-glass/261578/16 "2008-05-30T19:09:03Z")

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[quote=sekasi;2333343]2GB Ram is on the low end side for heavy photoshop work though… Especially if you happen to be in OSX aka RAM EATER OF DOOM.

I got 8gb in my macpro and I’m considering an upgrade to 16.[/quote]

I have no complaints with my 2GB, but i definitely have to upgrade to 4GB soon… too bad thats all the new iMacs can handle though… eventually I’ll rob enough banks to afford a mac pro

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**Author:** ![simplistik](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/simplistik/32/7747_2.png) [@simplistik](https://forum.kirupa.com/u/simplistik)\
**Post date:** [May 30, 2008, 8:05pm UTC](https://forum.kirupa.com/t/butt-through-glass/261578/17 "2008-05-30T20:05:42Z")

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:lol: you definitely need to get rid of the leg reflection. go stand backwards at a mirror, and look at yourself can you see the front of your legs?

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**Author:** ![NeoDreamer](https://avatars.discourse-cdn.com/v4/letter/n/ccd318/32.png) [@NeoDreamer](https://forum.kirupa.com/u/NeoDreamer)\
**Post date:** [May 30, 2008, 9:13pm UTC](https://forum.kirupa.com/t/butt-through-glass/261578/18 "2008-05-30T21:13:34Z")

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[QUOTE=sekasi;2333343]2GB Ram is on the low end side for heavy photoshop work though… Especially if you happen to be in OSX aka RAM EATER OF DOOM.

I got 8gb in my macpro and I’m considering an upgrade to 16.[/QUOTE]

You crazy, man. I press CTRL+ALT+DELETE to see my RAM usage. Rarely goes above 1.1 GB.

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**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\
**Post date:** [May 31, 2008, 1:47am UTC](https://forum.kirupa.com/t/butt-through-glass/261578/19 "2008-05-31T01:47:36Z")

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Whoa, you’re friend’s Jojo obsessive.

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**Author:** ![NeoDreamer](https://avatars.discourse-cdn.com/v4/letter/n/ccd318/32.png) [@NeoDreamer](https://forum.kirupa.com/u/NeoDreamer)\
**Post date:** [May 31, 2008, 2:09am UTC](https://forum.kirupa.com/t/butt-through-glass/261578/20 "2008-05-31T02:09:15Z")

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It looks like she doubled her curviness within one year

![](http://www.joanna-noelle-levesque.com/gallery-pics/albums/userpics/normal_05%7E301.jpg)

Client wanted matching outfits. I also faked the leg reflection better:

![](http://img153.imageshack.us/img153/6377/newwave3nj4.jpg)

[Next page](https://forum.kirupa.com/t/butt-through-glass/261578.md?page=2)
