Remane sound_scene_handle to playback handle.
sound_scene_handle was a part of scene so we could see code like scene-
often in the same function.
If I understand things correctly, in audaspace lingo, the
playback_handle corresponds to a Reader while the scene_sound
corresponds to a Factory.
More cleanups will be done here later, but changing this now because my
brain hurts trying to remember which is which...
Holds 30 frames in memory. Could make it check memory instead but that
should suffice for now to make sure blender does not crash on me with
movie files.
Previously the system would load eveything in memory so something like
playing caminandes in player would swap after 30 seconds in local
computer.
team.
There are 3 options here:
1) Keep range (previous behaviour)
2) Seconds - allows a specified offset in seconds around current frame
3) keyframes - zoom to include a number of keyframes around the cursor
Options 2 and 3 have their own properties to tweak the behaviour and all
options can be found in User Preferences->Interface under the 2D
viewports section.
Number 3 will probably need some refinement so commiting here for the
hwoozeberry team to test first.
This resolves a problem where selected items edited for multi-value-editig
could include objects not in any visible views (unlocked layers, local view... etc).
Optimize the full rebuild case for now (though same code can be adapted to
partial redraws)
Main changes here:
* Calculate bounding centroid for faces only once (instead of every intermediate node)
* Faces do not get added to GSets immediately, instead we track a face
array which has faces that belong in a node in consecutive order.
Nodes just keep accounting of start and length in the array.
* Due to faces not being added to GSets, we can skip doing cleanup of GSets
and readdition for each intermediate node and instead only
add the faces to the final leafs node GSets when those nodes are created.
Results:
For a 1.9 million face test model, PBVH generation time (roughly measured by undoing) is
dropped from 6 seconds to about 4 seconds. Still too high, but still a nice improvement.
TODO:
Thread some parts. Unfortunately threading the GSet assignment part might not help much since
we'd need a lot of locking to avoid collisions with node assignments, especially for unique vertices.
EWA filtering with zero derivatives is introducing some fuzzyness into the
image. Currently solved by using regular sampling for cases when derivatives
are zero, which should also make compo faster in that areas.
Still need to look into checking if EWA filter can be tweaked in a way so
no fuzzyness is introduced.
