[Bf-committers] RNA property updates vs anim sys

Matt Ebb matt at mke3.net
Fri Nov 26 00:28:36 CET 2010

On Thu, Nov 25, 2010 at 4:10 AM, Campbell Barton <ideasman42 at gmail.com> wrote:
> On Wed, Nov 24, 2010 at 5:08 AM, Matt Ebb <matt at mke3.net> wrote:

> One possible solution is to queue unique update functions for each
> update, per ID.
> A function pointer GHash & a check/w previous comparison should make
> collecting unique functions quite fast. Then these can run at the end,
> per ID.

Well if this is necessary, it would be great to see. I suspect the
reason this hasn't caused more problems elsewhere is that the depgraph
kind of overlaps with this behaviour and probably masks the effect for
a lot of blender data (i.e. scene objects automatically getting
updated via depgraph, regardless of update functions). Presumably this
doesn't extend fully to texture data.

Anyway, I can try to work around this for now by making a whole bunch
of abusive property set functions to do what should really be done by
update functions but it's something that really should be fixed.

If the purpose of RNA is to provide a unified, consistent interface to
UI, python, animation system, then it's quite a problem that changing
values via UI or python does the right thing, but via the animation
system it decides to just not run the code that it's been told to.



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