[Haskell-cafe] Announce: FieldTrip library (functional 3D) and
conal at conal.net
Sun Nov 9 17:03:51 EST 2008
FieldTrip  is a library for functional 3D graphics. It is intended for
building static, animated, and interactive 3D geometry, efficient enough for
real-time synthesis and display. Since FieldTrip is functional, one
describes what models are, not how to render them (being rather than doing).
Surfaces are described as functions from 2D space to 3D space. As such,
they are intrinsically curved rather than faceted. Surface rendering
tessellates adaptively, caching tessellations in an efficient, infinite data
structure (from the MemoTrie library) for reuse. Surface normals are
computed automatically and exactly, using the derivative tools in the
For animation or interaction, FieldTrip can be used with the Reactive 
library for functional reactive programming (and possibly other animation
frameworks). By design, FieldTrip is completely orthogonal to any
formulation or implementation of FRP. The reactive-fieldtrip  library
links Reactive and FieldTrip.
FieldTrip now has a mailing list  and a feature/bug tracker .
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