ickby, your anti-aliasing patch works a treat. I hardly notice any performance hit on my system until I hit MASS 8X. Between None and MSAA 4X, there is very little difference in my FPS. With 8X, there is about a 50% drop. With little visual difference between 4X and 8X, for me, 4X seems to be a good setting with no noticeable reduction in performance "feel". Thanks for this.
I have noticed that this improved visual quality does not seem to translate to the Tools > Save picture... function. Is this because of the compression level of the saved image, or is the image being taken from a process before the anti-aliasing? Any fix for this part (Save picture... tool)
Both the pics below were taken with MSAA set at 8X one with FreeCAD's tool, the other with KSnapshot

- Screenshot taken with FreeCAD > Tools > Save picture...
- X8_FreeCAD_Save_picture.png (13.37 KiB) Viewed 2752 times

- Screenshot taken with KSnapshot
- X8_KSnapshot.png (27.97 KiB) Viewed 2752 times
Mark
Nvidia GForce 9500 GT (G96)
1 GB RAM
Nvidia 331.67 driver
1.375 Ghz GPU
OS: Ubuntu 13.10
Platform: 64-bit
Version: 0.14.3562 (Git)
Branch: master
Hash: 320fabfc987d750303f3fe777238c67ae980acd9
Python version: 2.7.5+
Qt version: 4.8.4
Coin version: 4.0.0a
SoQt version: 1.5.0
OCC version: 6.7.0