Re: UV space-texturing question

Date : Mon, 22 Oct 2007 13:10:53 +0100
To : XSI(at)Softimage.COM
From : Michal Doniec <doniecm(at)gmail.com>
Subject : Re: UV space-texturing question
Thanks Bernard,

I tried it before but I was unsuccessful, but I tried it again today - it works. There is no transform UV per se on texture coordinate edit mode, but I can use UV remap fields - trouble was that my brain (or was that XSI) somehow calculated it backwards. To get 1 to 2 U coords space, I have to input -2 -1 in UV remap fields. (frist row)

UV remap can be also found on standard Image node under Advanced tab... since this is local for every image, problem is solved. I knew it was something simple.

Thanks a lot again.

Bernard Lebel wrote:
I don't have XSI in front of me, but here it goes.

You can extract a texture projection with the texture lookup node. I
don't remember if that particular shader has controls to offset the
coordinates, but if not, plug it in a texture_edit shader, which is
meant specifically for this.

Finally, instead of using an Image shader, use an image lookup shader.
Plug the image clip and the texture_edit shaders in the inputs.


Cheers Bernard



On 10/22/07, Michal Doniec <doniecm(at)gmail.com> wrote:
Hello,

I am not very experienced when it comes to more advanced texturing than
one or two maps. Here is my problem.

I have UVs laid out on one texture projection, but they occupy 0 to 3 UV
space. Head is 0 to 1; torso is 1 to 2 (U, V is always zero) etc..
Question is how do I offset UV spaces within the same texture
projection. I have tried few things.

- cluster materials for every set of UVs, UV wrap on. This obviously
work, but for many reasons I really dislike this solution

- I know I can offset U or V in texture_projection_def, but when I try
to copy texture projection, texture_projection_def is shared between
copies - which disallows me to modify offsets per projection (copy)
basis - if I change offset in one, it changes it for all others. I'd
really like to do it that way (use mix8colors and copies of texture
projection with different UV offsets). Any chance to copy texture
projection and not to have texture_projection_def shared between copies?

Thank you in advance.

Michal.

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