![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiT_uiGFJScrM7tpZCtM833gyDCfmCOGQ_W_vo8qsfO8bjKcI_Sfp74ntH7gc9V7ym18sFz6nc8_npsL6ZShgp0oTL2_p6xzsABD4IofdeYb9or1P7ZVGs-tydw_qQFiDnMXBgP0b7LOpU/s400/Science-fiction-babe-in-foil-bikini_01.jpg)
ALL THE IMAGES WITH TEXT HAVE BEEN UPLOADED AT FULL SIZE -- click to see them at 1:1 and read the captioning.
Changing the color of a character is something I've done once or twice before. You might remember this:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiLiT1mSq3dYMMonV6eZ8myj04_WE4GAVD22kEboSxMQb6VDfnM5kxnEUhaZRcJyXv8fjgGRmLX9UCAV2YQTWaDUivvIAimjbE3zSbemeltPP0eIOL9aiHR0qL3BPO7-qXmf4RcxSF-Doc/s400/how-to-modify-a-skinmap-for-3D-models_01.jpg)
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For myself, for this kind of thing I use Irfanview, which is FREE from Irfanview.com -- it's just the easiest and the most powerful as well as the price being right!
You need to track down where the images of the skinmap are kept on your harddrive. They'll be in the Textures folder inside your DAZ Runtime folders, which are probable installed in your Documents folder. You have to hunt them down and, when you've found them, copy them out into a folder on your desktop. Be sure to work with copies!! If you overwrite the original files, you'll wind up reinstalling the texture set to get back to where you were before!!
Now, if you've never done this, the actual images can be a bit gruesome ... yup, they look like a flayed human. Like a Mayan sacrifice. Sorry, dudes, that's how it works. Basically, when an artist or designer is assembling a new skin map for sale at DAZ or Renderosity etc., a human volunteer is imaged in very, very find detail under never-changing lights. The photos are then mosaiced together and the background dropped out. These images are then applied to the 3D model using a coordinate set called "UV" coordinates, which are the same thing as the x,y,z coordinates that describe both the real world and the world inside your 3D software, but the u,v system determines where a texture map is applied to a model.
So ... find the set of JPEG images you want to use for your alien -- back them up to the new folder on your desktop. Next challenge: tum them just the right shade of green, blue or whatever.
These are big images ... could be 4000x4000 pixels, at high-rez, so you obviously need to have a decent computer to do this! Open the images one at a time in your imaging program. Open up the dialog where you get to fiddle about with your R,G,B parameters, as well as gamma and contrast, and ... start fiddling!
It's important to know a bit about how one color affects another. RGB means Red, Green, Blue (duh), but what you might not know is that an easier way to make an image go green is to drop out the red! Say you want to make an image go blue ... you can turn up the blue, but if you don't drop out some red, it's going to go a purplish blue. There are all kinds of rules and formulae for working this out, but you don't need them. You just need to play with the software till you discover which colors work on concert with which other colors, to give what effect.
Don't forget to adjust gamma and contrast before you save the final result, otherwise you could end up with a pale, flat, "lifeless" skinmap.
The next thing is to apply these new JPEGs to your model.
Load up Victoria or Michael, or whomever. Then, open the Surfaces tab. See the loooooong list of all the bits of the model you can get hold of? You'll need to choose Skin - Face, Skin- Head, Torso, Limbs, and so on. Then, in the little dialog where the existing map is named, give this a click, then click Browse ... and click your way through to the folder where you put your new images. Choose those. Keep going till the whole model is re-skinned.
(Incidentally, if you wanted your model to come out with the tiger-stripes you saw on the Na'vi, these you will have to hand-paint! In fact, you can hand-paint whole skinmaps, starting with a blank "template," which is sometimes supplied with skinmaps. There's also something ... I think it's called "Living Doll," but don't hold me to that ... which is a skinmap template for artists who're clever with GIMP or whatever. I'm very, very tempted...!)
So that's the skin color for the alien taken care of. Now, what about the glued-on tinfoil bikini?
Okay, now we get back to the interesting part!
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To make it really obvious what I did, I've plunked the same fabric texture on the floor prop here's standing on. It's that easy. Now...
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjmpY2OmTEHfRaFfwbd-xSp15x1af5_4Szt4_QiEtFSJJCjEzvzxAOqGZa006e8cBNuAn9-pWCQA3U85vKfX-xKl7Y8U8L9I1h6Hidd_XePyvc-o8yge-Ngd9Wj8OtYA7EP6pl9SFo3NPI/s400/how-to-apply-maps-to-3D-models_02.jpg)
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So far, so good. But it doesn't much like tinfoil! So...
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Render one. A...ha! You ought to be close now, and you can go on tweaking all these things till you get just what you want. For instance, in the above-right image, I actually applied a blue-green-purple diffuse map, and then in the displacement dialog I adjusted the Minimum setting to (minus) -.30 to get this effect, which was pretty much what I'd wanted.
The last thing was to bring in a column and strip in a backdrop. What makes the column interesting is that I made it deep purple and turned it into a mirror with the reflection parameter. I swapped the ground color to green, to look better against the purple, and then the backdrop is a digital painting.
I ought to come back and talk about painting the backdrops! Another time...
Right now I've actually run out of time, but I think I'm finished this essay anyway.
Hope this helped ... and I hope you have loads of fun playing with all this.
Jade, 2 January