i've been playing around with different cameras options trying to work with
panoramic views.

i think that the povray's tutorial about it isn't enought, i couldn't really
understand how to set cameras of different types, i just could use
cylindrical 1 and panoramic.

does anyone of us used these funcions and could explain it better ???

tnx

;o)

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Okay I suppose the easiest to start on is Panoramic.

On a normal camera, the rays originate at one point and shoot out towards 
points on a flat grid, the size of which is defined by the up and right 
keywords.

Now with a panoramic camera it's sort of the same with the y projection but 
the x sweeps around in an arc, as if it's projecting not onto a flat plane 
but to points on the inside of a cylinder centred on the camera's location, 
around a sweep defined by the angle.

Spherical cameras are similar but now you have 2 angles, so you're getting 
the x projection and the y projection as circular sweeps.
Essentially  if you were to use a full 360 spherical camera and pate the 
resultant image to the inside of a sphere and place a camera in the middle, 
it'd look like you were looking around inside a scene.

This can be used for environment mapping on reflective objects ( do a google 
serach for environment mapping for more info on this )

The cylindrical camera is where it gets tricky... To be honest I think I 
know how this works but I don't want to shout my mouth off and be proved 
wrong or mislead you so I'll let someone else answer that one.

Anyone else??

-Pete

"Spirtu" <nomail@nomail> wrote in message 
news:web.4190c7a76ad58ae39fc2448a0@news.povray.org...
> i've been playing around with different cameras options trying to work 
> with
> panoramic views.
>
> i think that the povray's tutorial about it isn't enought, i couldn't 
> really
> understand how to set cameras of different types, i just could use
> cylindrical 1 and panoramic.
>
> does anyone of us used these funcions and could explain it better ???
>
> tnx
>
> ;o)
>
>

Post a reply to this message