Field of View is vertical, I want to specify horizontal!
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I want to create a 90 degree wide image, but have discovered that when inputting 90 degrees into 'field of view', this in fact controls the vertical field of view. through trial and error (drawing 90 degree extent lines in model) I have found the actual 'field of View' input of 68 degrees to in fact give me a 90 degree wide view.
Is there a way of inputting the correct data to acheive a 90 degree wide view, or at least a formula to work out what vertical degree i need to put in?
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@unknownuser said:
Note that the FOV can be input using two methods:
"67 mm" makes a FOV roughly analogical to a 67 mm lens
"67 deg" makes a FOV with a vertical viewing angle of 67 degrees ( a
wideangle lens)In SU the FOV is always measured vertically, which makes the setting
different from that of a 35 mm camera, where the FOV is measured
diagonally. I understand that this is because the SU window can be any
size and shape depending on your screen configuration.Anssi
Taken from Google Groups. I believe Anssi is also a member here. There is a thread here somewhere which would help but can't find it yet.
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I have found another thread on here that says if you enter this into ruby:
"Sketchup.send_action(10624)"
it brings up a dialogue box that gives you the horizontal reading of FOV as opposed to the vertical reading available in the command window in sketchup. from this I could work out that entering a 67.7 degree FOV (vertically) woudl give me a 90 degree width image.
I think there should be an easy way of specifying which orientation the FOV refers to, or if not, at least let us know that we are in fact entering the vertical measurement on the command line!!
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Moved topic. This isn't about a bug.
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@olishea said:
@unknownuser said:
Note that the FOV can be input using two methods:
"67 mm" makes a FOV roughly analogical to a 67 mm lens
"67 deg" makes a FOV with a vertical viewing angle of 67 degrees ( a
wideangle lens)In SU the FOV is always measured vertically, which makes the setting
different from that of a 35 mm camera, where the FOV is measured
diagonally. I understand that this is because the SU window can be any
size and shape depending on your screen configuration.Anssi
Taken from Google Groups. I believe Anssi is also a member here. There is a thread here somewhere which would help but can't find it yet.
Thanks for quoting... I haven't actually lurked here for a long time, hope to change that.
SU Pro users also can activate the Advanced Camera Tools extension(SketchUp for Film and Stage in earlier releases)that has options for simulating different kinds of cameras. It would perhaps make the calculation of a specific camera angle easier as it gives a somewhat fixed aspect ratio.
It could be approximated by drawing a triangle on the ground, drawing two verticals from the corners that are 90 deg. apart, and using the Place Camera tool to put the camera at the right angle corner and then adjusting the FOV until the edges touch the edges of your screen. If you know your screen aspect ratio, it wouldn't be an overwhelmingly difficult trigonometrical problem either.
Anssi
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Hello Anssi! Hope you are doing well, been a while since I've seen you posting and good to see you back
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Here is a quick method of calculating the required angle with SketchUp tools. It is accurate enough, as the FOV can only be input in full degrees.
Anssi
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