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View Full Version : Long flat eye maps, huh?

tonygib
10-18-2002, 11:12 AM
Hi all, I have a question about texturing and its effect on the modelling of a realistic eye. I have seen in a few places, FInal Fantasy comes mostly to mind, screen shots showing the texturing of an eye. In these cases the iris texture has been a long flat and fairly thin texture map. I have been wondering what thats all about. So far I just make a circle map and put it on a shere. How does one model the "eyeball" and then UV map a long flat texture for for eye when its basically just a sphere? And of course the other good question is why would you do it this way?

Looking for some professionals in the know!

Thanks
CHRiTTeR
10-19-2002, 01:19 AM
It's all in the eyes... (http://www.3dluvr.com/rogueldr/tutorials/eye/eyes.html) :thumbsup:

Cartoony eye animation (http://www.comet-cartoons.com/toons/3ddocs/eyerigging/) :thumbsup:

Iris texture map tutorial (http://www.kandsdesign.com/kim/eyemap-tut.html) :thumbsup:


GooD LuCK,
CHRiTTeR :cool:
CHRiTTeR
10-19-2002, 01:36 AM
Originally posted by tonygib
And of course the other good question is why would you do it this way?

Well, becose this is how the real eye really looks like/works.


CHeeRS,
CHRiTTeR :beer:
tonygib
10-19-2002, 04:33 AM
Thats for that Chritter, however I have seen those tuts before, also I think you may have missed the point of what I was asking.

All those tutorials deal with making and using a circular map for the iris. That is a square image, say 500x500 with a circle in the middle that hits the edges of the map and has the complete iris texture within it. Just like that third iris texture map tutorial.

What I am asking about are the times when I have seen an eye map that is long and thin, like say 1500x200. You can see in the example I attached, in both the top right and bottom left corners a flat rectangle iris map. Thats what I want to know about, why do it like that and how does that effect the modelling and mapping of that iris map to an eyeball.
Creed
10-20-2002, 04:36 AM
Here's a tutorial that uses the same technique as Final Fantasy
(e.g. unwrapping the iris texture horizontally):

http://www.unwrap3d.com/tutorial_eye.html

If you have Photoshop, you can use the polar->rect coordinates
filter to accomplish this.
tonygib
10-20-2002, 04:42 AM
Cool, thanks for that Creed, it sheds a bit of light onto the subject.
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