Is it posible to make an image round rather then a rectangle that has 90
degree angle ?

--
Jason S

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Jason Scott wrote:
> 
> Is it posible to make an image round rather then a rectangle that has 90
> degree angle ?
> 

Depends on what you want in fact.  There are some camera perspectives
producing a round or otherwise 'non rectangular' picture.  Since all image
files are rectangular, there is a black border.  You of course can also
add a black object with a round hole right in front of the camera to have
a round picture with regular perspective.  

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/

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thanks for that help but I was meaning something like an image for an
image-map

--
Jason S
Christoph Hormann <chr### [at] gmxde> wrote in message
news:3A3A2C30.6D76258D@gmx.de...
>
>
> Jason Scott wrote:
> >
> > Is it posible to make an image round rather then a rectangle that has 90
> > degree angle ?
> >
>
> Depends on what you want in fact.  There are some camera perspectives
> producing a round or otherwise 'non rectangular' picture.  Since all image
> files are rectangular, there is a black border.  You of course can also
> add a black object with a round hole right in front of the camera to have
> a round picture with regular perspective.
>
> Christoph
>
> --
> Christoph Hormann <chr### [at] gmxde>
> IsoWood include, radiosity tutorial, TransSkin and other
> things on: http://www.schunter.etc.tu-bs.de/~chris/

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Jason Scott wrote:
> 
> thanks for that help but I was meaning something like an image for an
> image-map
> 

Many painting programs have distortion capabilities, furthermore you could
also use a warp{} for doing this in pov.  

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/

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Jason Scott wrote:
> 
> thanks for that help but I was meaning something like an image for an
> image-map
> 

If you want to render a 360 degree "omnidirectional" image to map on an object,
you have two options AFAIK:
1) Render the image with "fisheye" projection and an angle of 360, then use some
paint program that has filters for converting an image from polar to rectangular
coordinates. The resultant image can then be mapped to the object with spherical
mapping (map_type 1)
2) Use the "sphere" camera in MegaPOV; the process is the same as with the
previous method, except the resultant image can be mapped to an object as-is,
i.e. there's no need for the polar-rectangular conversion step.

-- 
Margus Ramst

Personal e-mail: mar### [at] peakeduee
TAG (Team Assistance Group) e-mail: mar### [at] tagpovrayorg
Home page http://www.hot.ee/margusrt

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