I am still running VPX 188.8.131.52 as it has been totally reliable and I have a lot of urgent projects that I have been working on for months and didn't want to run into some other update problem.
My work is mainly weddings using up to four cameras and inevitably there is sometimes horizon levelling required. This has always been quick and efficient in VPX, but over the last few weddings, both my wife and I have noticed a blurring or softening of the image on even slight amounts of levelling. At first we thought that this was a pre-rendering effect on the monitor resolution, but after rendering there is a clear blurring of the final video clip, as though it is slightly out of focus.
This is very worrying as we are shooting in 4k and the final output at HD quality should not be showing a softening, so is clearly a software problem that we haven't seen before.
The loss of pixels on levelling due to the cropping should not be noticeable, particularly as we frequently do some quite brutal pans, zooms and cropping from the 4k footage, without the blurring seen in rotation. Has anybody else seen this or is able to offer any explanation why it has started happening?