 | | | classic vanishing point perspective vs. perspective and perspective view | classic vanishing point perspective vs. perspective and perspective view 2005-02-28 - By robert slawinski
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thanks for your answer, but what about the focal length? how about if
vanishing points are not symmetrical. <rs>
At 09:44 PM 2/27/2005, you wrote:
>hey robert -
>
>The distinguishing features of one and two point perspective drawings
>are that all horizontal lines diverge to one or two vanishing points
>(both on a horizon line), and that all vertical lines are vertical (and
>parallel).
>
>To set this up in XSI just link the y position of the camera interest to
>the y pos of the camera.
>
>hope that helps,
>mel
>
>-- --Original Message-- --
>From: robert slawinski [mailto:roberts@(protected)]
>Sent: Monday, 28 February 2005 3:22 p.m.
>To: XSI@(protected)
>Subject: classic vanishing point perspective vs. perspective and
>perspective view
>
>hi,
>
>i have the drawing which was done based on diagrams of elevations. this
>is perspective drawing, which from the very beginning looks quite
>strange, although when you put the elevation drawings it in educational
>software (Cabri Geometry II Plus) calculating (among many others)
>perspective distortion everything seems to fit.
>
>i modeled this set of objects using the measurements and tried to match
>it in perspective and camera view. no luck. i did rhotoskoping many
>times before, although i've never used drawings. only photographs or
>movie/video frames.
>
>my question:
>
>is the one or two vanishing point perspective distortion different than
>this used by the XSI's camera and perspective view? what could be the
>reason i cannot rotoskope this object on the picture even if it was
>drown according classic perspective rulles?
>
>thanks in advance. <rs>
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