[Bf-committers] Design considerations for data handling in the depsgraph
Fazekas László
mneko at freemail.hu
Tue Jun 17 21:25:36 CEST 2014
Just from outside, but I'd like to ask this:
today I met something interesting in the bugs section. There was a
calculation to get one object's derivedmesh on a sub-frame time position
between two frames. The goal was to calculate this fast, without
involving independent objects of the scene. Calculating a random time
point is not easy because of the "current frame" concept...
Let's imagine I'm calculating something for the current frame, but
during this, some nodes on the depsgraph needs data from different
timeline points.
How the new depsgraph solves this situation? With a "child" depsgraph?
What parts are shared? What happens if different nodes access the same
time point? How to minimize calculation time and memory size?
I hope these are useful questions somehow.
Laszlo Fazekas
2014-06-17 18:06 keltezéssel, Lukas Tönne írta:
> As requested during last sunday meeting, here is a wiki page with thoughts
> on how to handle data with the depsgraph:
>
> http://wiki.blender.org/index.php/User:Phonybone/Depsgraph
>
> Discussion would be appreciated. The dependency graph will affect every
> area of Blender so we better do this right!
>
> Regards,
> Lukas
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