QTVR panoramas

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

Corel PhotoPAINT 9 can export a cylindrical image into a Quicktime Panorama. I used it allready with POV-Ray rendered cylindrical images.

--- stefkeB ---

···

From: Greg Ward <[email protected]>
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Subject: [Radiance-general] Re: QTVR panoramas
Date: Sat, 2 Feb 2002 09:17:59 -0800
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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

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