| OGRE 1.11.1 Object-Oriented Graphics Rendering Engine

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- OCTREE_CHILDREN_COUNT : Ogre::Volume::OctreeNode
- octreeVisible : Ogre::Volume::ChunkTreeSharedData
- offset : bsp_lump_entry_t , Ogre::StreamSerialiser::Chunk
- OGRE_AUTO_MUTEX : Ogre::AnimationStateSet , Ogre::Log , Ogre::LogManager , Ogre::Resource , Ogre::ResourceGroupManager , Ogre::ResourceManager
- onlyInitial : Ogre::CompositorInstance::TargetOperation
- operation : Ogre::LayerBlendModeEx
- operationType : Ogre::RenderOperation , Ogre::SubMesh
- org : bsp_face_t
- orientation : Ogre::BillboardChain::Element , Ogre::StaticGeometry::QueuedGeometry , Ogre::StaticGeometry::QueuedSubMesh , Ogre::ViewPoint
- origin : Ogre::Volume::ChunkRequest
- originalPass : Ogre::IlluminationPass
- originalTextureName : Ogre::RTShader::TextureAtlasRecord
- output : Ogre::LodWorkQueueRequest
- outside : Ogre::PlaneBoundedVolume
- outsideWalkAngle : Ogre::LodConfig::Advanced
- outsideWeight : Ogre::LodConfig::Advanced
- outSkipped : Ogre::LodLevel
- outUniqueVertexCount : Ogre::LodLevel
- overrides : Ogre::ObjectAbstractNode