Regarding 3D Depth(immersive) issue with the IPD value during rendering at runtime.

[Jeff]

Whats the difference between: viz.ipd(0.06) and viz.MainWindow.ipd(0.06),i m confused on this.

In the first case the ipd value is applied to all windows while in the second case only to the main window.

Is it compulsary to use the other values such as ,fusion distance,screen distance,fov in combination with IPD.

If you're using one of the vizconnect options to setup a powerwall/CAVE or you're programming directly with the vizcave module, you don't need to specify any of these values. Vizcave does the calculations based on the wall dimensions you've provided and tracking origin relative to the walls.

If the stereo is swapped it will cause the stereo effect to look off. That can be changed in the nvidia control panel.