OBJ2MESH - UV Scale and Shift

Dear Group,

I have been recently using OBJ2MESH as part of my workflow. I am finding it very useful. What I would like to know is if it is possible to adjust the UV shift and scale of a pattern associated with a mesh? Say if a pattern tiles 4 times in the U and V, if I want for it to tile 1,2,3,6,8,etc. times and I wish to shift the patern by 1/2, is there a method for doing this?

Regards,

Marcus

hope this helps:

es.

shift by 50% and tile 10 times:

(X(Lu+0.5)/(1/10))-floor(X(Lu+0.5)/(1/10))

or
X(Lu+0.5)/.1-floor(X(Lu+0.5)/.1)

where X is the ratio X/Y of the image to map.

you may use directly these expression in colormap:

void colormap test
7 red green blue picture.pic
.
(X(Lu+0.5)/.1-floor(X(Lu+0.5)/.1))
((Lv+0.5)/.1-floor((Lv+0.5)/.1))
0
0

the "." means no cal file

ciao

giulio

PS remember that you need to recreate the mesh for this to take
effect...

ยทยทยท

-----Original Message-----
From: radiance-general-bounces@radiance-online.org
[mailto:radiance-general-bounces@radiance-online.org] On Behalf Of
Marcus Jacobs
Sent: 11 August 2005 15:16
To: radiance-general@radiance-online.org
Subject: [Radiance-general] OBJ2MESH - UV Scale and Shift

Dear Group,

I have been recently using OBJ2MESH as part of my workflow. I am finding
it
very useful. What I would like to know is if it is possible to adjust
the UV
shift and scale of a pattern associated with a mesh? Say if a pattern
tiles
4 times in the U and V, if I want for it to tile 1,2,3,6,8,etc. times
and I
wish to shift the patern by 1/2, is there a method for doing this?

Regards,

Marcus

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