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  2. Vanishing point - Wikipedia

    en.wikipedia.org/wiki/Vanishing_point

    The vanishing point may also be referred to as the "direction point", as lines having the same directional vector, say D, will have the same vanishing point. Mathematically, let q ≡ ( x , y , f ) be a point lying on the image plane, where f is the focal length (of the camera associated with the image), and let v q ≡ ( ⁠ x / h ⁠ , ⁠ y ...

  3. Perspective (graphical) - Wikipedia

    en.wikipedia.org/wiki/Perspective_(graphical)

    Linear or point-projection perspective works by putting an imaginary flat plane that is close to an object under observation and directly facing an observer's eyes (i.e., the observer is on a normal, or perpendicular line to the plane). Then draw straight lines from every point in the object to the observer.

  4. Optical illusion - Wikipedia

    en.wikipedia.org/wiki/Optical_illusion

    [30] For example, an illusion called the Hering illusion looks like bicycle spokes around a central point, with vertical lines on either side of this central, so-called vanishing point. [31] The illusion tricks us into thinking we are looking at a perspective picture, and thus according to Changizi, switches on our future-seeing abilities.

  5. Picture plane - Wikipedia

    en.wikipedia.org/wiki/Picture_plane

    The horizon frequently features vanishing points of lines appearing parallel in the foreground. The technique for creating a basic two-point perspective drawing, including the sight rays, the picture plane, the left and right vanishing point construction lines, the horizon line, and the ground line

  6. 3D projection - Wikipedia

    en.wikipedia.org/wiki/3D_projection

    its vanishing point, found at the intersection between the parallel line from the eye point and the picture plane. The principal vanishing point is the vanishing point of all horizontal lines perpendicular to the picture plane. The vanishing points of all horizontal lines lie on the horizon line. If, as is often the case, the picture plane is ...

  7. FDA Issues Urgent Warning on Dangers of Common Dog Medication

    www.aol.com/fda-issues-urgent-warning-dangers...

    The United States Food and Drugs Administration is warning pet owners about a common medication given to pets to treat arthritis. The F.D.A. now says that the drug Librela may be associated with ...

  8. Belinda Carlisle Reflects on Posing Nude for PETA, 34 Years ...

    www.aol.com/lifestyle/belinda-carlisle-reflects...

    Related: Belinda Carlisle on Coming Back to Pop Music After Almost 25 Years Away: 'A Huge Gift' (Exclusive) But in 2014, the "Vacation" musician decided to pour her passion for animals into ...

  9. Parallel projection - Wikipedia

    en.wikipedia.org/wiki/Parallel_projection

    In an oblique pictorial drawing, the displayed angles separating the coordinate axes as well as the foreshortening factors (scaling) are arbitrary. The distortion created thereby is usually attenuated by aligning one plane of the imaged object to be parallel with the plane of projection, creating a truly-formed, full-size image of the chosen plane.

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