Update from 29.09.2017

[pervokpetr]

New update was sent:
- Advanced culling and sorting for hook static objects (see video below)
- Redoned room loading pipeline(room menu lag)
- Fixed hairworks settings window bug
- Fixed physbound creation bug
- Added two new cull modes for villa and hook objects
- Added alpha_mask parameter for hook objects (see video below)

Advanced culling and sorting
I implemented new algorithm to avoid rendering objects which not visible in current view and sorting to avoid pixel overdraw effect, this can increase rendering performance for scene with large amount of hook objects on 50%, also new parameter "alpha_mask" allow me separate objects which require passing diffuse texture to render on shadow render stage from objects for which texture not required on shadow rendering stage - this also can improve performance(switcher on video only for debugging and will not be present in release version, but new algorithm will be used by defaults):
https://drive.google.com/open?id=0B22lKv0e5a08c00yRkNWdWxnYm8

New cull modes.
Some objects require rendering with cull_none mode to render both frontfaced polygons and backfaced polygons, but this mode can lead to pixel overdraw effect (multiple writing in render targets in the same pixel) new modes allow perform double rendering: cull _mode = 3 - first step - rendering fron faced polygons, second step rendering backfaced polygons - this mode better to use for non alpha blended objects and this mode will prevent pixel overdraw effect. cull_mode = 4, first step - rendering backfaced polygons, second step rendering frontfaced polygons - this mode better to use with alphablended objects, more correct rendering for alphablended objects which require double face rendering. For objects, which do not require double face rendering, better use cull_modes from 0 to 2 depends from situation.

Room loading pipeline
Changed this algorithm to avoid room menu lag, now room menu work faster. Although was found interesting bug (thanks to Siberia) room 248 addon had some object with wrong simbols in section name and this room was not loaded correct with new algorithm, but after fixing of this room addon, room start works properly.