It's pleasant, but not notated, and not consistently present. Sometimes, when I use slurs to indicate bowings of Dimension Strings, and use the dot above to note to indicate staccato (so there's a slur above the dot), I get a portamento effect in the passage. I don't get the portamento effect consistently. Sometimes, there is no portamento effect. I'm using all the latest versions of VE Pro and VI pro, and am operating in OSX 10.10, Yosemite (the phenomenon occured before I installed Yosemite under 10.9 Mavericks as well). One possible culprit is slow access to memory, having nothing to do with the software. I have noticed this before sometimes, when samples are just loading up -- there is a glide up to the right pitch. What puzzles me is that I only get this "faux portamento" in certain passages of the piece. I've tried renotating the passage in question, but the phenomenon reappears!
Any thoughts out there?