Author Topic: The field of view is different in horizontal and vertical  (Read 557 times)

Offline tukiyo

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The field of view is different in horizontal and vertical
« on: March 07, 2018, 08:56:58 AM »
The setting of the field of view is different in the horizontal direction and the vertical direction.(Version 3.03 Patch6)

It was confirmed with FOV set to 90 degrees.
When switching View, forward and right directions are connected in the horizontal direction.
However, in the vertical direction, it is not connected in the forward direction and the upward direction.
Is this correct?

Offline mikeWe9a

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Re: The field of view is different in horizontal and vertical
« Reply #1 on: March 07, 2018, 09:35:27 AM »
It is correct.  Your field of view will be different in the vertical axis vs the horizontal axis due to your monitor.  You have a 90 degree horizontal (from your monitor perspective) field of view, but will have a narrower field of view in the vertical display direction because your monitor has a rectangular display.  The aspect ratio of your monitor is 16:9 (horizontal:vertical), so you would expect a field of view to be 90 degrees side to side and (90 * 9 / 16 =) 50.6 degrees top to bottom.  This leaves a gap of about 40 degrees between "cardinal" views in the vertical direction, and not a lot of overlap with the diagonal view either.

If the view were 90 degrees in both directions, your view would be distorted as the view would have to be 'squashed' vertically to fit.

Mike

Offline tukiyo

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Re: The field of view is different in horizontal and vertical
« Reply #2 on: March 07, 2018, 09:46:32 AM »
It was as you said.
It was due to the aspect ratio of the display.
Thank you.

Offline FLS

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Re: The field of view is different in horizontal and vertical
« Reply #3 on: March 07, 2018, 11:41:55 AM »
This is why we map a button to the "up" view and combine it with the rear and side views.