Anim8or Community
General Category => General Anim8or Forum => Topic started by: flipper on May 10, 2011, 08:54:59 pm
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I have some questions about setting up a camera angel for an isometric view.
http://en.wikipedia.org/wiki/Isometric_projection#Overview (http://en.wikipedia.org/wiki/Isometric_projection#Overview)
This view differs slightly form the built in ortho view. and once I get the camera settings I will be able to rotate the camera to different perspectives (easier than rotaing the scene and the light) I do have to match things that are existing.
So what I have: object h High
Camera tilted down 55 degrees
camera set at 100(x-axis) z(z) 100 (y-axis)
FOV set to 45 degrees
does anyone know of a good way (mathematically) of determining the height of the camera?
with the camera set at 100(x) 100(y) the camera is set as a distance of 141 away. a^2+b^2=c^2
Tan(90-55) =h/141
h=67 high but that doesn't work unless I want his feet. what am I missing????
I realize I need to compensate for the height, but not sure how to do that
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Mathematically, you need to add the height difference between the feet and the point on which you would like to focus to h.
Non-mathematically, if you want the camera at a specific x,z, and angle but are not specific about the height then just temporarily alter the FOV such that the frame-lines are as tight as possible (ie 1) and move the camera along the y-axis until it is pointing at what you would like to be the centre of your shot. Then change your FOV back.
Hope this helps :)