Hallöchen! johannes hanika writes:
> On Sun, Jun 2, 2013 at 1:03 PM, Torsten Bronger < > [email protected]> wrote: > >> Hallöchen! >> >> johannes hanika writes: >> >>> On Sun, Jun 2, 2013 at 7:30 PM, Torsten Bronger < >>> [email protected]> wrote: >>> >>>> [...] >>>> >>>> If I apply keystone correction to the plane of the lower-level >>>> piano keys in <http://wilson.homeunix.com/pc/before.jpg>, the >>>> result is <http://wilson.homeunix.com/pc/after.jpg>. Thus, the >>>> aspect ratio of the piano keys is not correct. Even worse, >>> >>> what do you mean, correct? i think i don't understand what >>> result you're after here. >> >> I want to have it like this: > > so you want inverse texture mapping? the current thing just > removes the perspective, essentially giving you an ortho camera > instead of a perspective one. Yes, I'd like to have inverse texture mapping. The orthographic projection occurs in art photography only approximately and for very long focal lengths, where perspective control usually is not needed. But the typical use case for perspectve control seems to me the simulation of a shift lens, and here, you need the uniaxial scaling of the orthographic image. Tschö, Torsten. -- Torsten Bronger Jabber ID: [email protected] or http://bronger-jmp.appspot.com ------------------------------------------------------------------------------ Get 100% visibility into Java/.NET code with AppDynamics Lite It's a free troubleshooting tool designed for production Get down to code-level detail for bottlenecks, with <2% overhead. Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap2 _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users
