Pimax 5k+ Viewport adjustment

By adjusting the viewports in DCS, I could have get a much more better image clarity, spotting and distance view with the Pimax 5k+.

Actually I was fiddling around with the settings to get the VR zoom properly working with the 5k+, but this is another story, I guess.

To adjust the screen size for the Pimax, open the "stereo.lua", which could be found in

c:\Programs\Eagle Dynamics\DCS World Open Beta\Config\MonitorSetup\

The Stereo.lua looks as follows:

_ = function(p) return p; end;

name = _('Stereo');

Description = 'Stereo render two viewports for left and right eye respectivelly'

Viewports =

{

Left =

{

x = 0;

y = 0;

width = screen.width * 0.5;

height = screen.height;

viewDx = 0;

viewDy = 0;

aspect = screen.aspect / 2;

eye_shift = -0.032;

--tans of side angles

projection_bounds = {

left = 0.964925826,

right = 0.715263844,

top = 0.889498115,

bottom = 1.11092532,

}

},

Right =

{

x = screen.width * 0.5;

y = 0;

width = screen.width * 0.5;

height = screen.height;

viewDx = 0;

viewDy = 0;

aspect = screen.aspect / 2;

eye_shift = 0.032;

--tans of side angles

projection_bounds = {

left = 0.715263844,

right = 0.964925826,

top = 0.889498115,

bottom = 1.11092532,

}

}

}

UIMainView = {

x = 0;

y = 0;

width = screen.width;

height = screen.height;

}

GU_MAIN_VIEWPORT = UIMainView

After editing it looks like this:

_ = function(p) return p; end;

name = _('Stereo');

Description = 'Stereo render two viewports for left and right eye respectivelly'

Viewports =

{

Left =

{

x = 2560;

y = 1440;

width = 5120 * 0.5;

height = 1440;

viewDx = 2560;

viewDy = 1440;

aspect = 3 / 1.6878;

eye_shift = -0.032;

--tans of side angles

projection_bounds = {

left = 0.964925826,

right = 0.715263844,

top = 0.889498115,

bottom = 1.11092532,

}

},

Right =

{

x = 5120 * 0.5;

y = 1440;

width = 5120 * 0.5;

height = 1440;

viewDx = 2560;

viewDy = 1440;

aspect = 3 / 1.6878;

eye_shift = 0.032;

--tans of side angles

projection_bounds = {

left = 0.715263844,

right = 0.964925826,

top = 0.889498115,

bottom = 1.11092532,

}

}

}

UIMainView = {

x = 2560;

y = 1440;

width = 2560;

height = 1440;

}

GU_MAIN_VIEWPORT = UIMainView

Not being an expert, I would guess, that the issue with the VR zoom in DCS not properly working for the Large Field of View VR Headsets relates to its non-coplanar design.

Please see description in link: https://devblogs.nvidia.com/turing-multi-view-rendering-vrworks/

When activating VR zoom with a Large Field of View Headset, the images of the right and left eye overlapping in the middle. The closer the zoom goes, the more the images overlapping. This is only in the middle of the view, through the lenses of the Pimax. At the outer sides of the view, where left and right eye images are not overlapping, the VR zoom is fine.

Hopefully a developer could have a look into it, as the VR zoom is very useful and even essential, when you just learn to fly and handle a new model. For a fix or workaround like for the Odyssey recently, I would be thankful like crazy :)

EDIT 27.04.2019

Thanks, I will try

I'll give this a shot too and report back later today.

It wasn´t a problem a few updates before. Any update broke the VR Zoom of the Pimax. Got my headset very early and the zoom was exactly the same like in the rift or htc. No difference.. Now the images overlapping..

... so hope vr zoom could be fixed again with an upcoming update.

The vr zoom with parallel projection looks weird to me, somehow not right in place.

Another strange thing is, when you activate ´single pass stereo´ in the graphics.lua, on the left side there is rendering of the terrain missing, but not on the right side of the large field of view...very strange. Better setup the single pass stereo as false, then this problem is gone.

Hello Mr. Voight.

With current PiTool and streamVr etc.... do these changes still help?

I'm using the VR Shader Mod as well. On the Super Carrier, I'm lucky to get 18 fps.

Do you have any suggestions?

I have the Pimax 5K XR version.

Thanks.

Dave