Dear Friends of 3DE!
One of our old friends recently wrote to me:
"There is a major irony that the optical quality of modern cinema is dropping rapidly. Anamorphic is coming back in and even digital cameras proudly advertise that they are ready for anamorphic lenses. The beam splitter alignment on stereo rigs are problematic and rolling shutters are becoming common. The distortion software is improving, but the optical quality is getting worse faster than the software can keep up. "
Indeed, it seems that we all entered a new era of lens distortion, which we thought would be a good idea to address asap. Therefore, we changed our development plan for 3DE4 and added a plugin infrastructure for lens distortion, available now in 3DE4 R1b10!
You’re now free to add your own, custom lens distortion models very easily (new documentation how to do this is on its way).
For the beginning we provide three new, buildin models. A pure radial ("spherical") model which takes lens decentering into account, a higher degree radial model for fisheye lenses and a higher degree anamorphic model (18 parameters). More to come in the future…
In addition, we worked very hard on our calculation routines which extract lens distortion parameters out of a set of matrix points. We realized that optimizing pixel aspect, which usually is not exactly 2.0 for anamorphic lenses, has a great impact on precision. So, it can now be extracted out of a grid shot, as well – please use this feature!
Finally, we added a lot of python scripting commands and fixed numerous calculation core related bugs…
Please see changelog below for more details!
Cheers,
Rolf
www.3dequalizer.com /Dev_Blog
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