Yet another amateur animator's blog.

Welcome to yet another blog. Figments of Innovation is where I will be publishing the things I've been doing as an amateur animator.
A lot of my animation work was done for the Internet Ray-Tracing Contest, which was hosted by the developers of the Persistence of Vision ray-tracer (also known as POV-Ray), but the IRTC died on the vine back in 2006, and since then other hobbies have been taking up my spare time (namely video games and playing with my grandson), so my animation output has been greatly lacking.
In this blog I'll be posting articles about making animations in POV-Ray, to include modeling tips, encoding videos, and what-not.

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Motion Paths

A lot of animation involves moving either a character or the camera along a path through the scene, and so I'll provide a set of macros for defining a path. Some Helper Macros To make the code that follows a lot neater, I'll be using the following helper macros: #macro LinePoly(sVariable, sConstant, sLinear) (sLinear * sVariable + sConstant) #end #macro QuadPoly(sVariable, sConstant, sLinear, sQuadratic) ((sQuadratic * sVariable + sLinear) * sVariable + sConstant) #end #macro CubePoly(sVariable, sConstant, sLinear, sQuadratic, sCubic) (((sCubic * sVariable + sQuadratic) * sVariable + sLinear) * sVariable + sConstant) #end Continuity As with the macros that I provided in the last article, a motion path can have multiple levels of continuity, some of which are only necessary for specific applications. C 0 Continuity The minimal level of continuity is C 0 , which means that there are no open gaps in the path, but otherwise the motion is as simple as possible. Th...
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