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The answer is: they are not the same. Here is a related question from another site where somebody asked what the difference between both of them is (found the sentence I asked about in the comments there too). This is the main reference my answer is based on. From Wikipedia: "A vanishing point is a point on the image plane of a perspective drawing where ...


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There are many methods you could use to go about doing this, here is one using the parametric form of a line which is: $L(t) = p+t\vec v$ Where $p$ is a point on the line and would be stored as a 4 component vector $p = \{x,y,z,1\}$ and $\vec v$ is a vector that would be stored as a 4 components $\vec v = \{x,y,z,0\}$ This form translates with a 4x4 matrix ...


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