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Committed major refactoring in svn rev 9907. --------------------------------------------------------------------------------------------------- Extracted LOD processing from idEntity into LodComponent, and added global LodSystem as a container for them. All LOD-related members moved from idEntity into LodComponent, which means smaller memory footprint (not all entities use LOD). All LOD-related processing moved from SomeClass::Think into LodSystem::ThinkAllLod, which is called explicitly during game tic modelling (except for SwapLODModel virtual function). The only exception is the SEED mess: it still controls LOD manually during its Think function (the same in CStaticMulti). Every LOD-processed entity creates its own LodComponent from during entity spawn, which is then registered in LodSystem. LodSystem stores all LodComponent-s in one array, possibly with skips ("dead" elements). Each LodComponent has pointer to idEntity it corresponds to, and each entity stores lodIdx --- the index of its component inside LodSystem. Performance of LOD checks has been greatly improved by 1) avoiding touching idEntity memory, 2) storing all stuff in one plain array, 3) fixing the m_DistCheckTimeStamp confusion. On "Lucy's Quest" first beta, RunGameTic average time reduced from 10.5 ms to 9.6 ms. All 3046 LOD-enabled entities are processed in 40 us (negligible), and number of active entities reduced from 3859 to only 977. |
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Added minor tweak in svn rev 9909. When updating m_DistCheckTimeStamp, make sure its remainder modulo DistCheckInterval does not change. This ensures that distribution of LOD checks across frames remain the same. |
- Anonymous
