Commit Graph

8 Commits

Author SHA1 Message Date
Campbell Barton
e063682ed3 gcc wouldn't compile using a reference 2009-04-07 23:21:30 +00:00
Benoit Bolsee
51b4145841 BGE Scenegraph and View frustrum culling improvement.
This commit contains a number of performance improvements for the
BGE in the Scenegraph (parent relation between objects in the
scene) and view frustrum culling.

The scenegraph improvement consists in avoiding position update
if the object has not moved since last update and the removal
of redundant updates and synchronization with the physics engine.

The view frustrum culling improvement consists in using the DBVT
broadphase facility of Bullet to build a tree of graphical objects
in the scene. The elements of the tree are Aabb boxes (Aligned 
Axis Bounding Boxes) enclosing the objects. This provides good
precision in closed and opened scenes. This new culling system
is enabled by default but just in case, it can be disabled with
a button in the World settings. There is no do_version in this
commit but it will be added before the 2.49 release. For now you
must manually enable the DBVT culling option in World settings
when you open an old file.

The above improvements speed up scenegraph and culling up to 5x.
However, this performance improvement is only visible when
you have hundreds or thousands of objects.

The main interest of the DBVT tree is to allow easy occlusion
culling and automatic LOD system. This will be the object of further
improvements.
2009-04-07 22:14:06 +00:00
Chris Want
5d0a207ecb Patch from GSR that a) fixes a whole bunch of GPL/BL license
blocks that were previously missed; and b) greatly increase my
ohloh stats!
2008-04-16 22:40:48 +00:00
Erwin Coumans
2ec5d00da9 fixed some motionstate synchronization issues
nearsensor was not synchronized at the start
wheels not synchronized properly (one frame delay)
2006-12-04 04:13:42 +00:00
Erwin Coumans
869a9e4881 more work on Bullet 2.x 2006-12-03 01:16:17 +00:00
Erwin Coumans
438d114f1a - GEadded VSYNC for Mac OS X swapbuffers (can be easily undone by commenting out the #define WAIT_FOR_VSYNC 1
- GEdon't crash when attempting to add constraint on game objects without physics controller
- GEimproved some physics -> graphics synchronization issues
- small experiment with game engine timing to smooth framerate/reduce tearing
2006-12-02 22:25:47 +00:00
Kent Mein
209a2ede2c Last of the config.h mods...
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

added to these files.

Kent
--
mein@cs.umn.edu
2002-11-25 15:29:57 +00:00
Hans Lambermont
12315f4d0e Initial revision 2002-10-12 11:37:38 +00:00