andrel <a_l### [at] hotmailcom> wrote:
> - it'll be up to the user to implement a stack of transformations if he 
> thinks he needs one. Reverting to a marked state and replaying the 
> changed set of transformations from that point.

  There's no need for any stack nor the need for reverting if you simply
apply a group of transformation commands to the object at each frame.

  It's basically not any different from how POV-Ray currently does it,
except that it's not necessary to reparse and recreate the object at
each frame. (In theory this wouldn't be necessary in the current POV-Ray
either, except that the current SDL format makes it quite difficult to
do it otherwise. A simple format enhancement would remove the limitation.)

> If you assume the latter (which happens to be my point of view) post 
> creation transforms do not exist, by definition.

  I don't really understand what you are saying there.

  I don't see any problem in taking an existing object and apply more
transformations to it, or even resetting its transformations and applying
new ones.

-- 
                                                          - Warp

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