Tracon
Almost Aviator
Posts: 4

Post by Tracon on Jul 6, 2016 16:17:07 GMT
Hi Mark,
I'm trying to find the perfect zoom settings for my "Cessna Flight Simulator".
I saw your video on YouTube "WideViewAspect & Zoom", I was hoping maybe you could give me some help to get this setup correctly.
Below is a couple pictures of my simulator:
My setup consists of one 42" Sharp Aquos LCD TV for the forward view and two 27" BenQ monitors, one for each side window view, all running a resolution of 1920 X 1080.
I'm running two computers networked together using WidevieW, I have the first computer running my front 42" TV and my left 27" monitor off of my GTX 980 Ti by opening two new VC views in FSX and on the second computer, I'm running my third view on the right side 27" monitor view from the second computer.
I'm running "WideViewAspect=True" in my FSX.CFG.
I realize that my monitors are different in size 42"/27", please correct me if I'm wrong with what I've calculated below:
At first I was just guessing using the plus and minus keys to zoom in and out trying to get the scale setting right, the human eye is pretty sharp and I was surprised how close I got it without actually using some math to get it almost exact.
After some thought, this is what I came up with:
If I take a 27" screen and divide it by a 42" screen:
27/42 = .6428 I get approximately 64%
I then take 1.00 and minus .64
1.00  .64 = .36
I get .36 which is 36% that needs to be added to the zoom setting on the large 42" screen.
So if my zoom setting on the forward 42" screen is .56 which is common for widescreen monitors, I would then need to take .56 and multiply it by .36
.56 X .36 = .2016
I get approximately .20
I then take .56 and add .20
.56 + .20 = .76
So now I know that both my smaller 27" monitors need to be zoomed to .76 to match the same scale as my 42"
So am I using the correct zoom factor of .56 for the forward view or should it be 1.00 and the sides be 1.36?
Any help would be greatly appreciated!
Thanks in advance, Sam



Post by MarkH on Jul 6, 2016 18:03:46 GMT
So am I using the correct zoom factor of .56 for the forward view or should it be 1.00 and the sides be 1.36? I don't really follow your working but on the assumption that the last part is your question, I can only refer you back to the formula in the video (part 2, I think). This calculates the zoom factor according to the physical height of the screen (visible screen area, not including the bezel) and the distance it is from your eye. The formula is: Z = 34 / (2 * atan(h / 2d)) I note in passing that your calculations for modifying the zoom the small monitors to match the big one will also be sensitive to the viewing distance. In fact you could calculate the zoom factor independently for the front and side monitors using the formula above, rather than use the working you have shown. If your working is correct it should come out the same. (That's assuming my formula is correct too!)


Tracon
Almost Aviator
Posts: 4

Post by Tracon on Jul 6, 2016 18:43:03 GMT
Ok, so my math not being 100% LOL, could you calculate your formula using my numbers below?
Ok so my 42" forward monitor (Viewing area) is 20 1/2" (52.07cm) tall My side view monitors (Viewing area) are 13 1/4"(33.655) tall
I sit approximately 34" (86.36cm) away from my forward 42" Monitor.
Sorry for all the hand holding, to walk me through this...
Thanks, Sam



Post by MarkH on Jul 7, 2016 6:37:37 GMT
Ok, so my math not being 100% LOL, could you calculate your formula using my numbers below?
Ok so my 42" forward monitor (Viewing area) is 20 1/2" (52.07cm) tall My side view monitors (Viewing area) are 13 1/4"(33.655) tall
I sit approximately 34" (86.36cm) away from my forward 42" Monitor.
So for the forward monitor: Z = 34 / (2 * atan(h / 2d))
= 34 / (2 * atan(52 / 172)) = 34 / (2 * 16.8) = 34 / 33.6
= 1.0
Using the same distance, you would need about 1.5 on the side monitors.


Tracon
Almost Aviator
Posts: 4

Post by Tracon on Jul 7, 2016 17:42:45 GMT
Hi Mark,
Thanks for taking the time to work this out for me!
Really appreciate it!
Thanks, Sam



Post by ScottB on Jul 19, 2016 13:35:31 GMT
That's a nice simulator! I haven't found the courage to mess with Wideview yet, but looks like you've got it working well. Thanks for posting the pics.

