Hi Tom, I agree that "control of perspective" is THE important new dimension in photography and so I hope that pvQt can contribute to that.
As I said in a previous mail to this group, the mathmap plugin to GIMP is another possibility for playing with perspective. I have a number of functions which transform equirectangulars (from hugin) in various ways -- see http://www.lightspacewater.net/Software/ Maybe these are relevant to pvQt? Peter. From: Tom Sharpless <[EMAIL PROTECTED]> Subject: [hugin-ptx] Re: Release 0.4 of pvQt pano viewer. Date: Sun, 23 Nov 2008 13:58:51 -0800 (PST) > > Here's a private exchange I'd lik to make public > > On Sun, Nov 23, 2008 at 2:40 PM, <[EMAIL PROTECTED]> wrote: > > Tom, > > What a very nice and interesting piece of software, thank you for > working on this and making it available to the pano community... > > Many of the views are so interesting I have wondered whether there > is any possibility of, or plan to, include save or print options... > > > Yes there is. > > One of the things I like best about DevalVR is that it can save the > view in an image file., and I often use it to extract printable images > from spherical panoramas. Version 0.5 of pvQt will be able to do the > same. > > One of the things I like best about PanoTools is that it gives you a > lot of control over perspective, which I think is an important new > dimension in photography. So I'm looking froward to using pvQt as a > fast, interactive tool for composing printable images with lots of > control over perspective. I've just changed the description on SF to > "panoramic image viewer and perspective converter" in anticipation of > this. > > > > Some of the renderings or distortions would be interesting to > capture full size, i.e., in some manner other than a screen-size > grab... Have you considered this at all? > > > Yes, and it may be feasible to some extent. The OpenGL tecnology that > makes pvQt so fast and flexible is strictly aimed at filling screen- > size frame buffers. But screens can be pretty big nowadays, and you > can render to "off screen" frame buffers bigger than the physical > display screen. So I would expect to be able to get output images up > to 8 Mpixels or so, which is enough for a sharp 11x14 print. > > What really limits the potential quality of captured pvQt views is > interpolation artefacts of various kinds. Some of these are very > evident near the poles of equirectangular and spherical images as > displayed by pvQt; but there is a more general limit due to the fact > that OpenGL texture images can't be very large (2 - 16). If you are > going to stretch an image dramatically, and want the result to be > smooth and crisp, you must have lots more source pixels than > destination pixels; OpenGL unfortunately does not cater for that. So > for big prints there would have to be a special piece of software that > could generate better views using specifications prepared by pvQt. > Current stitcher technology is certainly up to that; maybe nona or the > PTGui batch stitcher could be adapted.... > > > I am a member of both the PTGui and Huggin forums but hesitated to > ask publicly since this may turn out to be a really bone-headed > question!! > > > Well, at the risk of embarrassing you, I am going to post this to both > forums because I think you have asked some very good questions. > > > > Thanks, > > Charlie Cagle aka Bucko > > > Thank you, Tom > > > > > > ______________________________________________ > This email has been scanned by Netintelligence > http://www.netintelligence.com/email > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/hugin-ptx -~----------~----~----~----~------~----~------~--~---
