[fluxus] commits

[Dave Griffiths]

* grab stack

(grab a)
(colour (vector 1 0 0)) ; affects a
    (grab b)
    (colour (vector 0 1 0)) ; affects b
    (ungrab)
(colour (vector 0 0 1)) ; affects a again
(ungrab)

mainly of use where functions need to do operations on a primitive are
called in the middle of another primitive operation.

* (maim) fixed
* (edit) works from the local path again, but searches the searchpaths
first. all script loading uses guile's %load-path, while textures use the
fluxus searchpath, needs unifying maybe and documenting.

* (osc-source) can change port. seems to fail if you set it back to one
used previously, not sure why this is, looking into it. should also be
more stable than before.

* sincos lookup table disabled - was causing "jitteryness" due to lack of
precision in some cases (and it wasn't really helping out speed wise)

cheers,

dave