[Radiance-general] Re: QTVR panoramas

[Greg Ward]

I remember when I added the -vtc option to Radiance, there was a free 
utility for making QTVR panoramas from cylindrical PICT images.  I did a 
quick search and found the following webpage:

	http://developer.apple.com/quicktime/quicktimeintro/tools/

On there is a link to "QTVR Make Panorama 2", which does exactly this.  
I haven't tried it, but I recall it used to be necessary to first rotate 
the image, using protate to go to ra_pict, then to this tool.  
Unfortunately, they only have a Mac OS version, but with a little more 
searching, you might find a Windows edition somewhere....

-Greg
> Zack Rogers wrote:
>
> I've tried having a vertical view angle of 180, which in theory could 
> give you
> a complete sphere of view angles allowing you to pan down and up as 
> well, but
> that does not seem to work and I'm not exactly sure why.  You get a very
> vertically elongated image.
>
>
> This is due to the fact that you have a completely normal
> perspective in vertical direction. A vertical opening angle of
> 180 degrees would result in an infinitesimally tall picture.
> The first diagram (below the Rayfront screenshot) on this
> page illustrates the principle:
>  http://www.schorsch.com/rayfront/manual/viewedit_v.html
>
> The full mechanics of cylindrical views are explained here:
>  http://www.schorsch.com/rayfront/manual/viewedit_c.html
>
>
> -schorsch