For your information, I released tonight the version 6.4.2 which fixes a nasty regression which detached joined walls, when split with Plan > Split wall menu item or recomputed with room modification pane.
Please, update to this new version if you're using Sweet Home 3D 6.4.
By the way, I'm happy to announce that the 28th language supported in Sweet Home 3D will be Thai. The translation was performed by กันย์ชัชชัย โพธิหล้า (Kanchatchai Potila) and its SH3L file is available in Translations page. Many thanks for his contribution.
Working on both Windows and OSX, I have made the following Yafaray observations:
Windows seems to be a lot faster when rendering small and simple projects, while OSX seems to be much faster rendering more complex projects.
Opening SH3D on Windows also takes significantly longer than opening SH3D on OSX.
Thanks for your feedback [:)]
The changes I programmed mainly targeted the regression on some joined walls. There was a very small change in the way plan icons are computed but I don't see how it could have made Sweet Home 3D run faster.
After installing version 6.4.2 under Windows 10, Immunet gave me a virus warning. See screenshot.
Puybaret thinks it's a false positive, but maybe other users get the same message?
Problem is that I can't run this version, so I had to re-install version 6.4. Unfortunately that gives the same problem.
I'm investigating...
UPDATE
I uninstalled Immunet and installed Kaspersky. Problem solved!!
1 ... i am still getting walls disconnecting at corners, but only 2 of them, they are not split. there are a total of 18 walls
2 ... the method plan > connect walls works on all walls but right click > join walls does not on the same 2 corners
this project has been saved numerous times.
using W7