Hi, recently I noticed that Blender is slower then it was back in 2.4x days when it comes to many objects (just empties).
I recall having 80'000 objects in a scene, while it was very slow to duplicate, Blender was usable apart from that. Two recent examples: --- On a test with ~20,000 objects I found blender was continuesly looping over all scenes (and set scenes recursively), to check if any of the objects were speakers, to update their sound time. Even when there were no speakers in the blend file. (Now theres a quick check to avoid this in `sound_update_scene`) --- Today I just stubmed upon `BKE_object_lod_update` being called on every redraw for every 3DView for every object, in every set-scene recursively and every dupli. Incase the game engine is enabled and LOD's are used. This stuff should really come up in code-review, (I can take some blame for not reviewing the patch in this case...) While I'm sure its not the main bottleneck in blenders viewport speed, its just sloppy and can be easily avoided (skip the loop if the game-engine is disabled for example, and only operate on objects which are visible!). Sometimes bad hacks are hard to avoid, in those cases at least add a comment that the code is inefficient with some explanation why a better method can't be used. For now I'll ifdef out this code when the game engine is disabled, but really I think we should be a bit better picking up on this stuff especially when it effects all users. -- - Campbell _______________________________________________ Bf-committers mailing list [email protected] http://lists.blender.org/mailman/listinfo/bf-committers
