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I want to create an image map for a sphere in photoshop for a pool ball i.e.
a colour, a white circle with a number in it. If I create a sphere <0,0,0>
1.0 in pov-ray what size does my planar map in photoshop have to be to
avoid any wrapping? Is there any way to avoid wrapping round an object?
Thanks.
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Wasn't it the_ajj who wrote:
>I want to create an image map for a sphere in photoshop for a pool ball i.e.
>a colour, a white circle with a number in it. If I create a sphere <0,0,0>
>1.0 in pov-ray what size does my planar map in photoshop have to be to
>avoid any wrapping? Is there any way to avoid wrapping round an object?
The size of the image in photoshop has no effect at all on whether the
image gets wrapped. The documentation says
By default, the image is mapped onto the x-y-plane. The image is
projected onto the object as though there were a slide projector
somewhere in the -z-direction. The image exactly fills the square area
from (x,y) coordinates (0,0) to (1,1) regardless of the image's
original size in pixels. If you would like to change this default you
may translate, rotate or scale the pigment or texture to map it onto
the object's surface as desired.
You need to translate the pigment by <-0.5,-0.5,0> and scale it by 2 to
get it to fit once onto sphere{<0,0,0>,1}.
--
Mike Williams
Gentleman of Leisure
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In article <web.4375f8ef21f939cb3cc62c290@news.povray.org>,
"the_ajj" <nomail@nomail> wrote:
::I want to create an image map for a sphere in photoshop for a pool ball i.e.
::a colour, a white circle with a number in it. If I create a sphere <0,0,0>
::1.0 in pov-ray what size does my planar map in photoshop have to be to
::avoid any wrapping? Is there any way to avoid wrapping round an object?
::
::Thanks.
any size you like but image must have width = 2 x height.
klp
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> any size you like but image must have width = 2 x height.
No; regardless of an image's size, it will be treated the same way by
POV-Ray. This means it will be squeezed into the unit square from <0,0,0> to
<1,1,0>, even if doing so changes its proportions. (If spherical mapping is
used, the image will similarly wrap all the way around the sphere no matter
what its width or height is.) It's up to the user to resize the image as
necessary.
- Slime
[ http://www.slimeland.com/ ]
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In article <43798cb2$1@news.povray.org>, "Slime" <fak### [at] email address>
wrote:
::> any size you like but image must have width = 2 x height.
::
::No; regardless of an image's size, it will be treated the same way by
::POV-Ray. This means it will be squeezed into the unit square from <0,0,0> to
::<1,1,0>, even if doing so changes its proportions. (If spherical mapping is
::used, the image will similarly wrap all the way around the sphere no matter
::what its width or height is.) It's up to the user to resize the image as
::necessary.
::
:: - Slime
:: [ http://www.slimeland.com/ ]
you're wrong. please see my samples in p.b.i
klp
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Thanks everyone.....the argument continues in the images newsgroup !
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