COMP 3490 Lecture Notes - Lecture 2: Parametric Equation, Rasterisation, Opengl
11 Jan 2019
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Document Summary
Today"s announcement- readings added on umlearn for processing. We have a systemic way of incorporating line with a t parameter, which an help us trace points one by one and draw a straight line. Parametric equation are better than other form of line equations but still are impractical for drawing lines, but good for other shapes like parabolas or circles. The regular circle is 2d which can be extended into 3d and other shapes too, such as to draw a sphere, as a system of 3 parametric equation with 2 variables. We have line defined by a two points , in our real value coordinate system , the line then cross path in some potential pixels. So we start filling in the pixels which the deviated line is passing through, but in doing so we now have an error term.
